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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 13590. Отображено 100.
16-06-1997 дата публикации

СИСТЕМА РЕГУЛИРОВАНИЯ ЭЛЕКТРИЧЕСКОЙ МОЩНОСТИ

Номер: RU0000004392U1

Система регулирования электрической мощности, содержащая нагрузку, вентиль и переключатель, отличающаяся тем, что устройство имеет вентиль и переключатель с возможностью выключения и включения вентиля последовательно с нагрузкой. (19) RU (11) (13) 4 392 U1 (51) МПК G05F 3/00 (1995.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 96100258/20, 05.01.1996 (46) Опубликовано: 16.06.1997 (71) Заявитель(и): Файбушевич Михаил Маркович (72) Автор(ы): Файбушевич Михаил Маркович R U (73) Патентообладатель(и): Файбушевич Михаил Маркович (54) СИСТЕМА РЕГУЛИРОВАНИЯ ЭЛЕКТРИЧЕСКОЙ МОЩНОСТИ 4 3 9 2 (57) Формула полезной модели Система регулирования электрической мощности, содержащая нагрузку, вентиль и переключатель, отличающаяся тем, что устройство имеет вентиль и переключатель с возможностью выключения и включения вентиля последовательно с нагрузкой. R U 4 3 9 2 U 1 U 1 Ñòðàíèöà: 1 RU 4 392 U1 RU 4 392 U1 RU 4 392 U1

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27-04-2002 дата публикации

ФЕРРОРЕЗОНАНСНЫЙ СТАБИЛИЗАТОР

Номер: RU0000022833U1
Автор: Березов В.В.

1. Феррорезонансный стабилизатор, содержащий трансформатор, магнитопровод которого выполнен из двух кольцевых соосных сердечников, один из которых является внутренним и расположен внутри другого сердечника, являющегося внешним, соприкасающиеся поверхности сердечников снабжены пазами, в пазах внешнего сердечника расположены первичная и трехфазная компенсационная обмотки, а в пазах внутреннего сердечника расположена трехфазная вторичная обмотка, каждая фаза которой зашунтирована конденсатором, при этом компенсационная и вторичная обмотки соединены последовательно, отличающийся тем, что первичная обмотка выполнена трехфазной, и ее выводы подключены к соответствующим выводами для подключения трехфазной сети. 2. Феррорезонансный стабилизатор по п.1, отличающийся тем, что число пазов внешнего сердечника Z кратно трем, при этом число пазов внутреннего сердечника Z выбирается в соответствии с математическим выражением 0,8Z ≤ Z ≤ 1/25Z. 3. Феррорезонансный стабилизатор по п.1 или 2, отличающийся тем, что соединенные последовательно трехфазные компенсационная и вторичная обмотки включены по схеме звезда, каждая фаза вторичной обмотки имеет отвод от средней точки, соединенный с соответствующим выходным выводом. (19) RU (11) 22 833 (13) U1 (51) МПК G05F 3/06 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 2002100177/20 , 10.01.2002 (24) Дата начала отсчета срока действия патента: 10.01.2002 (46) Опубликовано: 27.04.2002 (72) Автор(ы): Березов В.В. (73) Патентообладатель(и): Березов Владимир Владимирович R U Адрес для переписки: 129278, Москва, Рижский пр-д, 13, кв.144, Е.Ю. Плужниковой (71) Заявитель(и): Березов Владимир Владимирович 2 2 8 3 3 R U Z2 выбирается в соответствии с математическим выражением 0,8Z1 ≤ Z2 ≤ 1/25Z1. 3. Феррорезонансный стабилизатор по п.1 или 2, отличающийся тем, что соединенные последовательно трехфазные компенсационная и вторичная обмотки включены по схеме звезда, каждая ...

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10-07-2004 дата публикации

БЕСТРАНСФОРМАТОРНЫЙ ИСТОЧНИК ЭЛЕКТРОПИТАНИЯ

Номер: RU0000039023U1

Источник электропитания, содержащий первый и второй входные выводы, служащие для подключения к питающей сети, выпрямительный диод, первый электрод которого присоединен через балластный элемент к первому входному выводу и через резистор - к базе транзистора, эмиттер которого подключен к первому выводу накопительного конденсатора и второму электроду выпрямительного диода, включенного согласно последовательно с эмиттер - базовым переходом транзистора, фильтрующий конденсатор, подключенный параллельно первому и второму выходным выводам, предназначенным для подключения нагрузки, при этом первый выходной вывод соединен с вторым входным выводом, являющимся общим выводом с питающей сетью, отличающийся тем, параллельно фильтрующему конденсатору подключены два включенных согласно последовательно стабилитрона, полярность обратного смещения которых совпадает с полярностью напряжения на фильтрующем конденсаторе, при этом второй вывод накопительного конденсатора подсоединен к точке соединения введенных стабилитронов, а второй выходной вывод соединен непосредственно с коллектором транзистора. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 39 023 (13) U1 (51) МПК H02M 7/12 (2000.01) G05F 3/22 (2000.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2004106342/22 , 05.03.2004 (24) Дата начала отсчета срока действия патента: 05.03.2004 (46) Опубликовано: 10.07.2004 (73) Патентообладатель(и): Невзоров Вадим Анатольевич (RU), Перковский Роман Анатольевич (RU), Кобыляцкий Дмитрий Владимирович (RU) U 1 3 9 0 2 3 R U Ñòðàíèöà: 1 U 1 Формула полезной модели Источник электропитания, содержащий первый и второй входные выводы, служащие для подключения к питающей сети, выпрямительный диод, первый электрод которого присоединен через балластный элемент к первому входному выводу и через резистор - к базе транзистора, эмиттер которого подключен к первому выводу накопительного конденсатора и второму электроду ...

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10-03-2006 дата публикации

СТАБИЛИЗАТОР НАПРЯЖЕНИЯ

Номер: RU0000052209U1

Стабилизатор напряжения, выполненный в виде трехфазного трансформатора, состоящего из внешнего сердечника в виде полого цилиндра с расположенным на его внутренней поверхности пазами, в которых уложена первичная трехфазная обмотка, и расположенного внутри внешнего сердечника соосно с ним внутреннего сердечника цилиндрической формы с пазами на его внешней поверхности, в которых размещена трехфазная вторичная обмотка, причем упомянутая первичная обмотка подключена к сети, а упомянутая вторичная обмотка подключена к нагрузке, отличающийся тем, что кривая распределения проводников каждой фазы вторичной обмотки по пазам U=φ(x), где U - число проводников в пазах; х - расстояние вдоль окружности внутренней поверхности цилиндра от точки отсчета, имеет вид криволинейной трапеции. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 52 209 (13) U1 (51) МПК G05F 3/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2005130410/22 , 03.10.2005 (24) Дата начала отсчета срока действия патента: 03.10.2005 (45) Опубликовано: 10.03.2006 (73) Патентообладатель(и): Военно-инженерная академия (RU) U 1 5 2 2 0 9 R U внутренней поверхности цилиндра от точки отсчета, имеет вид криволинейной трапеции. Ñòðàíèöà: 1 U 1 Формула полезной модели Стабилизатор напряжения, выполненный в виде трехфазного трансформатора, состоящего из внешнего сердечника в виде полого цилиндра с расположенным на его внутренней поверхности пазами, в которых уложена первичная трехфазная обмотка, и расположенного внутри внешнего сердечника соосно с ним внутреннего сердечника цилиндрической формы с пазами на его внешней поверхности, в которых размещена трехфазная вторичная обмотка, причем упомянутая первичная обмотка подключена к сети, а упомянутая вторичная обмотка подключена к нагрузке, отличающийся тем, что кривая распределения проводников каждой фазы вторичной обмотки по пазам Un x=φ(x), где Un x - число проводников в пазах; х - ...

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10-09-2006 дата публикации

ИДЕНТИФИКАТОР ТРАНСПОРТНОЙ ШИНЫ (ВАРИАНТЫ) И КОМПЛЕКТ ТАКИХ ИДЕНТИФИКАТОРОВ

Номер: RU0000056665U1

1. Идентификатор транспортной шины, содержащий размещенное на поверхности, по меньшей мере, одного из его элементов средство идентификации и фиксатор для его закрепления на транспортной шине, выполненный в виде скобы, изготовленной из материалов, способных изменять под нагрузкой свою форму и восстанавливать ее после прекращения таковой и имеющей контуры и размеры, позволяющие обеспечить ее закрепление или на транспортной шине, или на кромке транспортной шины, или внутри камерной части транспортной шины. 2. Идентификатор по п.1, отличающийся тем, что фиксатор содержит, по крайней мере, одну лапку, крепежная часть которой имеет форму, повторяющую в заметной степени контуры соответствующей части транспортной шины. 3. Идентификатор по п.1, отличающийся тем, что он сам или его фиксатор выполнены в виде прищепки с лапками, крепежная часть, по крайней мере, одна из которых повторяет контуры соответствующей части транспортной шины. 4. Идентификатор по п.2, отличающийся тем, что фиксатор оснащен более чем двумя крепежными лапками. 5. Идентификатор по п.4, отличающийся тем, что, по крайней мере, конец одной из крепежных лапок выполнен изогнутым в виде лыжного носка, обеспечивающего удобство установки идентификатора на шине. 6. Идентификатор по п.1, отличающийся тем, что внутренняя поверхность лапок фиксатора выполнена или с рельефом, или с использованием материала, повышающего их крепежные свойства. 7. Идентификатор по любому из пп.1-6, отличающийся тем, что он оснащен, по крайней мере, одной полой или цельной головкой или ручкой, при этом головка или ручка могут быть выполнены как за единое целое с идентификатором, так и в виде самостоятельной детали, скрепленной с другими его деталями любым известным способом. 8. Идентификатор по п.7, отличающийся тем, что ручка выполнена с насечкой или со специальным покрытием. 9. Идентификатор транспортной шины, содержащий размещенное на поверхности, по меньшей мере, одного из его элементов средство идентификации и фиксатор для его ...

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10-05-2010 дата публикации

ИСТОЧНИК ОПОРНОГО НАПРЯЖЕНИЯ

Номер: RU0000094007U1

Источник опорного напряжения, содержащий первый операционный усилитель, выход которого подключен к первым контактам первого и четырнадцатого резисторов, инвертирующий вход первого операционного усилителя подключен ко второму контакту первого резистора и к первому контакту второго резистора, второй контакт которого соединен с общим проводом, выход второго операционного усилителя соединен с первыми контактами пятого, третьего и седьмого резисторов, инвертирующий вход второго операционного усилителя соединен со вторым контактом седьмого резистора и с первым контактом восьмого резистора, второй контакт которого соединен с общим проводом, неинвертирующие входы второго и четвертого операционных усилителей подключены к точке соединения второго контакта третьего резистора и первого контакта четвертого резистора, второй контакт которого соединен с анодом первого диода, инвертирующий вход четвертого операционного усилителя соединен с выходом четвертого операционного усилителя и с первым контактом десятого резистора, неинвертирующий вход третьего операционного усилителя подключен к точке соединения второго контакта пятого резистора и первого контакта шестого резистора, второй контакт которого соединен с анодом второго диода, а инвертирующий вход третьего операционного усилителя соединен с выходом третьего операционного усилителя, с первым контактом одиннадцатого резистора и с неинвертирующим входом первого операционного усилителя, катоды первого и второго диодов соединены с общим проводом, неинвертирующий вход пятого операционного усилителя соединен со вторым контактом одиннадцатого резистора и с первым контактом двенадцатого резистора, второй контакт которого соединен с общим проводом, а инвертирующий вход пятого операционного усилителя подключен ко второму контакту десятого резистора и к первому контакту девятого резистора, выход пятого операционного усилителя подключен ко второму контакту девятого резистора и к первому контакту тринадцатого резистора, второй контакт ...

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10-06-2011 дата публикации

ЭЛЕКТРОННЫЙ СТАБИЛИЗАТОР НАПРЯЖЕНИЯ ДЛЯ АККУМУЛЯТОРНЫХ БАТАРЕЙ

Номер: RU0000105484U1

Электронный стабилизатор напряжения для аккумуляторных батарей, состоящий из транзисторов VT1, стабилитрона VD1 и четырех резисторов, отличающийся тем, что транзистор своей базой соединен с резисторами R1 и R2, а эмиттером соединен со стабилитроном VD1 и резистором R4, в свою очередь коллектор транзистора соединен с резистором R3, при этом параллельно резистору R4 подключены клеммы +U и клемма следующей ступени, причем стабилитрон VD1 работает в стандартном режиме, обеспечиваемом резистором R4, при этом ток через стабилитрон мало зависит от тока базы транзистора. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 105 484 (13) U1 (51) МПК G05F 3/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2011104214/07, 07.02.2011 (24) Дата начала отсчета срока действия патента: 07.02.2011 (45) Опубликовано: 10.06.2011 1 0 5 4 8 4 R U Формула полезной модели Электронный стабилизатор напряжения для аккумуляторных батарей, состоящий из транзисторов VT1, стабилитрона VD1 и четырех резисторов, отличающийся тем, что транзистор своей базой соединен с резисторами R1 и R2, а эмиттером соединен со стабилитроном VD1 и резистором R4, в свою очередь коллектор транзистора соединен с резистором R3, при этом параллельно резистору R4 подключены клеммы +Uп и т и клемма следующей ступени, причем стабилитрон VD1 работает в стандартном режиме, обеспечиваемом резистором R4, при этом ток через стабилитрон мало зависит от тока базы транзистора. Ñòðàíèöà: 1 ru CL U 1 U 1 (54) ЭЛЕКТРОННЫЙ СТАБИЛИЗАТОР НАПРЯЖЕНИЯ ДЛЯ АККУМУЛЯТОРНЫХ БАТАРЕЙ 1 0 5 4 8 4 Адрес для переписки: 199155, Санкт-Петербург, ул. Одоевского, 26, НИЦ связи ВМФ - ФГУ "24 ЦНИИ МО РФ" (73) Патентообладатель(и): Федеральное государственное учреждение 24 Центральный научно-исследовательский институт Министерства обороны Российской Федерации (RU) R U Приоритет(ы): (22) Дата подачи заявки: 07.02.2011 (72) Автор(ы): Катанович Андрей Андреевич (RU), Тамодин ...

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10-06-2011 дата публикации

БЛОК ЭЛЕКТРОПИТАНИЯ

Номер: RU0000105485U1

Блок электропитания, состоящий из мостового выпрямителя и стабилитронов, отличающийся тем, что мостовой выпрямитель выполнен из диодов VD1, VD2 и стабилитронов VD3, VD4, соединенных между собой по мостовой схеме, причем первый вход выпрямителя через балансный конденсатор подключен к средней точке мостовой схемы выпрямителя, а второй вход подключен к точке соединения диода со стабилитроном, при этом выход выпрямителя первым выходом подключен к точке соединения стабилитронов, а вторым выходом к точке соединения диодов. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 105 485 (13) U1 (51) МПК G05F 3/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2011105365/07, 14.02.2011 (24) Дата начала отсчета срока действия патента: 14.02.2011 (73) Патентообладатель(и): Катанович Андрей Андреевич (RU) (45) Опубликовано: 10.06.2011 1 0 5 4 8 5 R U Формула полезной модели Блок электропитания, состоящий из мостового выпрямителя и стабилитронов, отличающийся тем, что мостовой выпрямитель выполнен из диодов VD1, VD2 и стабилитронов VD3, VD4, соединенных между собой по мостовой схеме, причем первый вход выпрямителя через балансный конденсатор подключен к средней точке мостовой схемы выпрямителя, а второй вход подключен к точке соединения диода со стабилитроном, при этом выход выпрямителя первым выходом подключен к точке соединения стабилитронов, а вторым выходом к точке соединения диодов. Ñòðàíèöà: 1 ru CL U 1 U 1 (54) БЛОК ЭЛЕКТРОПИТАНИЯ 1 0 5 4 8 5 Адрес для переписки: 199155, Санкт-Петербург, ул. Одоевского, 26, НИЦ связи ВМФ - ФГУ "24 ЦНИИ МО РФ" R U Приоритет(ы): (22) Дата подачи заявки: 14.02.2011 (72) Автор(ы): Катанович Андрей Андреевич (RU), Тамодин Николай Васильевич (RU), Попов Павел Валерьевич (RU), Цыванюк Вячеслав Александрович (RU) RU 5 10 15 20 25 30 35 40 45 50 105 485 U1 Полезная модель относиться к области электрорадиотехники, и может быть использована в бестрансформаторных ...

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УСТРОЙСТВО УПРАВЛЕНИЯ ТОКООГРАНИЧЕНИЕМ УНИВЕРСАЛЬНОЕ

Номер: RU0000139768U1

Устройство управления токоограничением универсальное, состоящее из исполнительного устройства, управляемого сигналами, поступающими по проводной или беспроводной линии, блока ступенчатого изменения порога срабатывания токового дискриминатора и таймера, выполненных на базе микроконтроллера с энергонезависимой памятью, отличающееся тем, что оно содержит энергонезависимые часы реального времени и блок уставок, задающий несколько временных зон и ряд уровней токоограничения для каждой временной зоны с отображением этой информации на встроенном или выносном блоке индикации. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК G05F 3/04 (13) 139 768 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2013145891/07, 14.10.2013 (24) Дата начала отсчета срока действия патента: 14.10.2013 (73) Патентообладатель(и): ООО Научно-инжиниринговая фирма "ВЕЛТЕК" (RU) (45) Опубликовано: 20.04.2014 Бюл. № 11 R U 1 3 9 7 6 8 Формула полезной модели Устройство управления токоограничением универсальное, состоящее из исполнительного устройства, управляемого сигналами, поступающими по проводной или беспроводной линии, блока ступенчатого изменения порога срабатывания токового дискриминатора и таймера, выполненных на базе микроконтроллера с энергонезависимой памятью, отличающееся тем, что оно содержит энергонезависимые часы реального времени и блок уставок, задающий несколько временных зон и ряд уровней токоограничения для каждой временной зоны с отображением этой информации на встроенном или выносном блоке индикации. Стр.: 1 U 1 U 1 (54) УСТРОЙСТВО УПРАВЛЕНИЯ ТОКООГРАНИЧЕНИЕМ УНИВЕРСАЛЬНОЕ 1 3 9 7 6 8 Адрес для переписки: 141985, Московская обл., г. Дубна, ул. Энтузиастов, 6-б, кв. 34, Петрову В.А. R U Приоритет(ы): (22) Дата подачи заявки: 14.10.2013 (72) Автор(ы): Петров Валерий Александрович (RU), Петрова Евгения Викторовна (RU), Гаранжа Иван Никитович (RU), Журавлев Павел Петрович (RU), Каплоухий Сергей Александрович (RU) RU 5 ...

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НАБОР ОГРАНИЧИТЕЛЕЙ НАПРЯЖЕНИЯ

Номер: RU0000143672U1

Ограничитель напряжения, характеризующийся последовательным включением восьми функциональных групп стабилитронов с малым напряжением стабилизации с выводом каждой функциональной группы на отдельный вывод (14) выводного корпуса типа 401.14-5. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК G05F 3/10 (13) 143 672 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2013145927/07, 14.10.2013 (24) Дата начала отсчета срока действия патента: 14.10.2013 (73) Патентообладатель(и): Открытое акционерное общество "Протон" (ОАО "Протон") (RU) (45) Опубликовано: 27.07.2014 Бюл. № 21 (54) НАБОР ОГРАНИЧИТЕЛЕЙ НАПРЯЖЕНИЯ U 1 1 4 3 6 7 2 R U Стр.: 1 U 1 Формула полезной модели Ограничитель напряжения, характеризующийся последовательным включением восьми функциональных групп стабилитронов с малым напряжением стабилизации с выводом каждой функциональной группы на отдельный вывод (14) выводного корпуса типа 401.14-5. 1 4 3 6 7 2 Адрес для переписки: 302040, г. Орел, ул. Лескова, 19, ОАО "Протон", Генеральному директору В.В. Меньшову R U Приоритет(ы): (22) Дата подачи заявки: 14.10.2013 (72) Автор(ы): Федосов Владимир Семенович (RU), Цырлов Андрей Михайлович (RU), Верижников Александр Иванович (RU) U 1 U 1 1 4 3 6 7 2 1 4 3 6 7 2 R U R U Стр.: 2 RU 5 143 672 U1 Ограничитель напряжения относится к электронной технике и может быть использован в качестве схемы защиты от перенапряжения или искрогашения в коммутационных цепях бортовой сети электропитания. В общем случае ограничение напряжения обеспечивается применением разновидности диода - стабилитрона, работающего в режиме пробоя при обратном смещении (Зи С.М. Физика полупроводниковых приборов - М.: Мир, 1984. - Т.1. - с.122). Оценка напряжения стабилизации VB по механизмам лавинного и туннельного пробоя указывает на ограничение по формуле (1): 10 15 20 25 30 35 40 45 где Eg - ширина запрещенной зоны; q - заряд электрона. Для кремниевого стабилитрона напряжение стабилизации ...

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ИСТОЧНИК ТЕРМОСТАБИЛИЗИРОВАННОГО ТОКА

Номер: RU0000159358U1

Источник термостабилизированного тока, содержащий первый и второй диоды на p-n переходах, первый резистор, с первого по третий МДП-транзисторы с индуцированным каналом первого типа проводимости, истоки которых подключены к первой шине напряжения питания, а затворы соединены со стоком первого МДП-транзистора первого типа, первый и второй МДП-транзисторы с индуцированным каналом второго типа проводимости, затворы которых соединены со стоками вторых МДП-транзисторов первого и второго типов, сток первого МДП-транзистора первого типа соединен со стоком первого МДП-транзистора второго типа, исток которого через первый резистор подключен к области первого типа проводимости первого диода, исток второго МДП-транзистора второго типа соединен с областью первого типа проводимости второго диода, области второго типа проводимости первого и второго диодов соединены со второй шиной напряжения питания, сток третьего МДП-транзистора первого типа является выходом тока, отличающийся тем, что дополнительно содержит второй и третий резисторы, подключенные соответственно между истоками первого и второго МДП-транзисторов второго типа и второй шиной напряжения питания. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК G05F 3/26 (13) 159 358 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2015145248/08, 22.10.2015 (24) Дата начала отсчета срока действия патента: 22.10.2015 (72) Автор(ы): Игнатьев Сергей Михайлович (RU) Приоритет(ы): (22) Дата подачи заявки: 22.10.2015 (45) Опубликовано: 10.02.2016 Бюл. № 4 1 5 9 3 5 8 R U Формула полезной модели Источник термостабилизированного тока, содержащий первый и второй диоды на p-n переходах, первый резистор, с первого по третий МДП-транзисторы с индуцированным каналом первого типа проводимости, истоки которых подключены к первой шине напряжения питания, а затворы соединены со стоком первого МДПтранзистора первого типа, первый и второй МДП-транзисторы с индуцированным каналом второго ...

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СТАБИЛИЗАТОР ПОСТОЯННОГО НАПРЯЖЕНИЯ

Номер: RU0000161999U1

Стабилизатор постоянного напряжения, содержащий первый транзистор, база которого подключена через первый резистор к его коллектору, являющемуся входом устройства, и коллектору второго транзистора, эмиттер которого подключен к катоду первого стабилитрона и через второй резистор к эмиттеру первого транзистора, а также базе второго транзистора, являющейся выходом устройства, отличающийся тем, что в устройство введен второй стабилитрон, однотипный первому стабилитрону, причем второй стабилитрон включен встречно первому стабилитрону, анодом к аноду первого стабилитрона, а катодом к общему проводу. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК G05F 3/08 (13) 161 999 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2016100534/07, 11.01.2016 (24) Дата начала отсчета срока действия патента: 11.01.2016 (45) Опубликовано: 20.05.2016 Бюл. № 14 R U 1 6 1 9 9 9 Формула полезной модели Стабилизатор постоянного напряжения, содержащий первый транзистор, база которого подключена через первый резистор к его коллектору, являющемуся входом устройства, и коллектору второго транзистора, эмиттер которого подключен к катоду первого стабилитрона и через второй резистор к эмиттеру первого транзистора, а также базе второго транзистора, являющейся выходом устройства, отличающийся тем, что в устройство введен второй стабилитрон, однотипный первому стабилитрону, причем второй стабилитрон включен встречно первому стабилитрону, анодом к аноду первого стабилитрона, а катодом к общему проводу. Стр.: 1 U 1 U 1 (54) СТАБИЛИЗАТОР ПОСТОЯННОГО НАПРЯЖЕНИЯ 1 6 1 9 9 9 Адрес для переписки: 355017, г. Ставрополь, пер. Зоотехнический, 12, СтГАУ, ОИС, патентный отдел (73) Патентообладатель(и): ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "СТАВРОПОЛЬСКИЙ ГОСУДАРСТВЕННЫЙ АГРАРНЫЙ УНИВЕРСИТЕТ" (RU) R U Приоритет(ы): (22) Дата подачи заявки: 11.01.2016 (72) Автор(ы): Бондарь Сергей Николаевич (RU), ...

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Номер: RU0000178694U1

Полезная модель относится к области электротехники, в частности к устройствам формирования опорного напряжения, и может быть использована при создании малошумящих источников стабильного напряжения постоянного тока. Техническим результатом является снижение уровня шумов. Устройство формирования опорного напряжения с пониженным уровнем шумов содержит стабилизатор, конденсатор, повторитель напряжения, выполненный на операционном усилителе, вычитатель, содержащий две пары резисторов и операционный усилитель, причем конденсатор с входным сопротивлением повторителя напряжения образует высокочастотный фильтр. 4 ил. И 1 178694 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВО“” 178 694 Ц4 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 06.12.2018 Дата внесения записи в Государственный реестр: 16.09.2019 Дата публикации и номер бюллетеня: 16.09.2019 Бюл. №26 Стр.: 1 па Уб9З ду ЕП

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Номер: RU0000179294U1

Полезная модель относится к области электротехники, в частности к устройствам формирования опорного напряжения и может быть использована при создании малошумящих источников стабильного напряжения постоянного тока. Техническим результатом является снижение уровня шумов. Устройство формирования опорного напряжения с пониженным уровнем шумов содержит источник опорного напряжения, два конденсатора, инвертор, два вычитателя, два повторителя напряжения, при этом инвертор содержит три резистора и операционный усилитель, каждый вычитатель содержит операционный усилитель и две пары резисторов, а каждый повторитель напряжения выполнен на операционном усилителе, причем конденсаторы с входными сопротивлениями повторителей напряжения образуют высокочастотные фильтры. 5 ил. И 1 179294 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ ”’ 179 2947 91 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 28.04.2018 Дата внесения записи в Государственный реестр: 04.07.2019 Дата публикации и номер бюллетеня: 04.07.2019 Бюл. №19 Стр.: 1 па бб ЕП

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Ограничитель постоянного напряжения

Номер: RU0000181859U1

Полезная модель относится к технике преобразования электрической энергии, в частности к преобразователям напряжения, которые преобразуют высокое входное напряжение в низковольтное напряжение для питания электронных устройств различного назначения. Данный ограничитель имеет широкое применение и может быть использован для питания электронных схем погружного блока в системах телеметрии нефтяных скважинных насосов. Ограничитель постоянного напряжения содержит цепь из последовательно соединенных резисторов, вход которой подключен к положительному входу устройства, а выход - к катоду блока стабилитронов. Такого же количества транзисторов, включенных последовательно сток - исток, причем сток первого транзистора подключен к положительному входу устройства, а исток последнего транзистора является положительным выходом. Затворы транзисторов подключены к соответствующим узлам резистивного делителя таким образом, что падение напряжения на электродах сток - исток транзисторов практически идентично. Анод блока стабилитронов образует отрицательный вход и выход устройства. К каждому транзистору подключены стабилитроны, катоды которых подключены к затворам, а аноды - к истокам. Технический результат заключается в получении высокого диапазона напряжения питания 200-4200В без потери работоспособности и защите транзисторов от перенапряжения на затворе. И 1 181859 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 184 859” 44 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ МЕЭК Восстановление действия патента Дата, с которой действие патента восстановлено: 10.02.2022 Дата внесения записи в Государственный реестр: 10.02.2022 Дата публикации и номер бюллетеня: 10.02.2022 Бюл. №4 Стр.: 1 па 653131 ЕП

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29-08-2019 дата публикации

Стабилизированный источник напряжения

Номер: RU0000191975U1

Полезная модель относится к сетевым стабилизированным источникам питания и может использоваться в приборостроении и в бытовой технике. Техническим результатом является обеспечение высокой температурной стабильности выходного напряжения (широкого диапазона рабочих температур) при одновременном расширении диапазона выходных напряжений, а значит и расширение функциональных возможностей устройства как стабилизированного источника питания. Стабилизированный источник питания содержит: источник однофазного переменного тока, активное сопротивление, реактивное сопротивление (емкость или индуктивность), трехфазный выпрямительный мост, два диода Зенера (стабилитрона). 2 ил. И 1 191975 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 194 975” 44 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 08.02.2020 Дата внесения записи в Государственный реестр: 15.10.2020 Дата публикации и номер бюллетеня: 15.10.2020 Бюл. №29 Стр.: 1 па 1616 р ЕП

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11-11-2019 дата публикации

Сепаратор для очистки проб зерна при проведении экспресс - оценки зерноуборочных комбайнов

Номер: RU0000193716U1

Предлагаемая полезная модель относится к методам и средствам определения качества зерноуборочных комбайнов при их испытании.Указанный технический результат достигается тем, что введение в конструкцию устройства электрического вентилятора с напряжением питания 12 В и аккумулятора повышает мобильность и оперативность проведения работ, а применение регулятора скорости вращения вентилятора позволяет изменять скорость воздушного потока для возможности отделения зерна различных культур от сорных примесей. Разборная конструкция устройства, облегчающая его транспортировку, состоит из нижней секции с аккумулятором, являющейся основанием, на которую сверху плотно надевается средняя часть, имеющая в нижней части кольцевое расширение, содержащая внутри вентилятор и регулятор оборотов, в которую сверху плотно вставляется нижняя половина емкости для обрабатываемых проб зерна, верхняя половина которой жестко закреплена в третьей, самой верхней, части устройства. 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 193 716 U1 (51) МПК G05F 3/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G05F 3/02 (2019.08); A01D 41/00 (2019.08) (21)(22) Заявка: 2019114068, 06.05.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 11.11.2019 (45) Опубликовано: 11.11.2019 Бюл. № 32 1 9 3 7 1 6 R U (56) Список документов, цитированных в отчете о поиске: RU 122829 U1, 20.12.2012. RU 2402896 C1, 10.11.2010. RU 2387121 C1, 27.04.2010. US 20170083035 A1, 23.03.2017. (54) СЕПАРАТОР ДЛЯ ОЧИСТКИ ПРОБ ЗЕРНА ПРИ ПРОВЕДЕНИИ ЭКСПРЕСС - ОЦЕНКИ ЗЕРНОУБОРОЧНЫХ КОМБАЙНОВ (57) Реферат: Предлагаемая полезная модель относится к Разборная конструкция устройства, облегчающая методам и средствам определения качества его транспортировку, состоит из нижней секции зерноуборочных комбайнов при их испытании. с аккумулятором, являющейся основанием, на Указанный технический результат достигается которую сверху плотно надевается средняя часть, тем, ...

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10-02-2020 дата публикации

ИСТОЧНИК ОПОРНОГО НАПРЯЖЕНИЯ С КАЛИБРОВКОЙ ВЫХОДНОГО НАПРЯЖЕНИЯ

Номер: RU0000195898U1

Полезная модель относится к области электротехники. Техническим результатом полезной модели является создание источника опорного напряжения с калибровкой выходного напряжения с улучшенными эксплуатационными характеристиками, а именно со стабильным выходным напряжением Vout после калибровки и автоматическим процессом подстройки регулируемых элементов, за счет наличия схемы смещения базы биполярных транзисторов BJT1 и BJT2, состоящей из блока управления температурным коэффициентом (CTK - Control block temperature coefficient), осуществляющим преобразование цифрового кода в температурный коэффициент выходного тока, и нагрузочного резистора Rt, подключенного между эмиттером и коллектором биполярных транзисторов BJT1 и BJT2, а также за счет наличия источника тока, управляемого напряжением (OTA_TR - Operational Transconductance Amplifier) с подстройкой смещения, выполняемой блоком управления напряжением смещения CVOS (Control block offset voltage), входящим в состав источника тока, управляемого напряжением. 4 з.п. ф-лы, 12 ил. И 1 195898 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 195 898” 44 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 22.10.2020 Дата внесения записи в Государственный реестр: 20.09.2021 Дата публикации и номер бюллетеня: 20.09.2021 Бюл. №26 Стр.: 1 па 863961 ЕП

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23-02-2012 дата публикации

Power Managers for an Integrated Circuit

Номер: US20120043812A1
Принадлежит: Individual

A system for an integrated circuit comprising a plurality of power islands includes a first power manager and a second power manager. The first power manager manages a first power consumption for the integrated circuit based on needs and operation of the integrated circuit. The second power manager communicates with the first power manager and manages a second power consumption for one of the power islands.

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23-02-2012 дата публикации

Receiver circuit with high input voltage protection

Номер: US20120044608A1
Принадлежит: ARM LTD

An integrated circuit 2 includes a receiver circuit 4 for receiving an input signal PAD and converting this to an output signal OUT. Conduction path circuitry 14 couples an input 10 to a first node 16 . Buffer circuitry 18 is coupled between the first node 16 and an output 12 carrying the output signal Out. The conduction path circuitry comprises a first PMOS transistor 24 and a second PMOS transistor 26 connected between the input 10 and the first node 16 . A first NMOS transistor 28 is connected between the input 10 and the first node 16 . The gate of the second PMOS transistor 26 is coupled to the output 12 to directly receive the output signal and thereby achieve rapid cut off of the charging of the node 16 when the input voltage rises beyond a certain level which switches the buffer circuitry 18.

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01-03-2012 дата публикации

Semiconductor chip

Номер: US20120049899A1
Принадлежит: Renesas Electronics Corp

The present invention provides a semiconductor chip which is insusceptible to noise and whose consumption current is small. In a semiconductor chip, an internal power supply voltage for an internal circuit block is generated by a regulator having small current drive capability and a regulator having large current drive capability. A voltage buffer is provided between a reference voltage generating circuit and the regulator having large current drive capability. In a low-speed operation mode, the voltage buffer and the regulator having large current drive capability are made inactive. Therefore, noise in reference voltage is suppressed, and consumption current can be reduced.

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15-03-2012 дата публикации

Transistor substrate dynamic biasing circuit

Номер: US20120062313A1
Принадлежит: STMICROELECTRONICS SA

A dynamic biasing circuit of the substrate of a MOS power transistor may include a first switch configured to connect the substrate to a current source which forward biases the intrinsic source-substrate diode of the transistor, when the gate voltage of the transistor turns the transistor on. The current source may include a stack of diodes in the same conduction direction as the intrinsic diode between the substrate and a supply voltage.

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29-03-2012 дата публикации

High-voltage tolerant voltage regulator

Номер: US20120077551A1
Принадлежит: Skyworks Solutions Inc

Circuits and methodologies related to high-voltage tolerant regulators are disclosed. In some implementations, a voltage regulator can be configured to be capable of being in a regulating state and a bypass state. In the regulating state, an input voltage greater than a selected value can be regulated so as to yield a desired output voltage such as a substantially constant voltage. In the bypass state, an input voltage at or less than the selected value can be regulated so as to yield an output voltage that substantially tracks the input voltage. Such a capability of switching between two modes can provide advantageous features such as reducing the likelihood of damage in a powered circuit due to high input voltage, and extending the operating duration of a power source such as a rechargeable battery. Also disclosed are examples of how the foregoing features can be implemented in different products and methods of operation and fabrication.

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12-04-2012 дата публикации

Constant current circuit and semiconductor integrated circuit

Номер: US20120086503A1
Автор: Sadanori Akiya
Принадлежит: Fujitsu Ltd

In a constant current circuit, a drain terminal is connected to an output terminal of a current, and a gate voltage operable in a saturation region is applied to a source-grounded transistor. An increase current generating circuit generates an increase current equivalent to an increase of a current due to a channel length modulation effect of the transistor. A current mirror circuit generates a current having the same value as that of the increase current generated by the increase current generating circuit and supplies the generated current to the drain terminal of the transistor.

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12-04-2012 дата публикации

Wake-up control circuit for power-gated ic

Номер: US20120087199A1
Автор: Jose Tejada
Принадлежит: Analog Devices Inc

Embodiments of the present invention may provide a power-gating switch circuit. The power-gating switch circuit may comprise a first switch to connect a power supply to a virtual power supply and a second switch to connect the power supply to the virtual power supply in parallel to the first switch. The first switch may have a lower impedance than the second switch. When a wake up signal is received, the second switch may be turned on first and the first switch may be turned on after the virtual power supply reaches a predetermined voltage level.

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10-05-2012 дата публикации

Wireless Adaptation of Lighting Power Supply

Номер: US20120112654A1
Принадлежит: Daintree Networks Pty Ltd

Methods, systems, and apparatus, for wirelessly controlling a power supply device that controls a load. A wireless adapter includes a wireless communication device that receives transmissions from a wireless controller, a serial interface for a serial data connection to a power supply processing device integrated in the power supply device, an adapter processing device that receives the control signals the wireless communication device outputs, generates the control commands from the control signals, and outputs the control commands to the serial interface to cause the power supply processing device to control power provided to the load in a manner specified by the control commands, and an adapter power circuit that receives regulated direct current (DC) power from the power supply device and is powered from the regulated DC power received, and provides power to the wireless communication device and the adapter processing device.

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24-05-2012 дата публикации

Reference voltage generation circuit and method

Номер: US20120126616A1
Принадлежит: NOVATEK MICROELECTRONICS CORP

A reference voltage generation circuit includes: a bandgap reference circuit, generating a plurality of initial currents with different temperature coefficients; a base voltage generation circuit, combining the initial current into a combined current, and converting the combined current into one or more base voltages; a bias current source circuit, generating one or more bias currents based on at least one of the initial currents; and one or more regulating output circuit, each converting a respective one of the one or more bias currents into an increment voltage and adding the increment voltage to the base voltage to generate a respective output voltage. Each output voltage may have its respective temperature coefficient.

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05-07-2012 дата публикации

Multi-voltage regulator

Номер: US20120169305A1
Принадлежит: Samsung Electro Mechanics Co Ltd

Disclosed herein is a multi-voltage regulator. The multi-voltage regulator includes an error amplifier amplifying a difference voltage between a predetermined reference voltage and a received feedback voltage; a first voltage adjusting part connected to an output terminal of the error amplifier, the first voltage adjusting part regulating a level of a voltage at a power input terminal to output the regulated voltage to a first output terminal; a second voltage adjusting part connected to the output terminal of the error amplifier, the second voltage adjusting part regulating the level of the voltage at the power input terminal to output the regulated voltage to a second output terminal; and a voltage detector detecting a voltage according to a voltage at the first output terminal and a voltage at the second output terminal to supply the detected voltage as the feedback voltage.

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09-08-2012 дата публикации

Constant-voltage circuit and semiconductor device thereof

Номер: US20120200339A1
Автор: Kentaro Ikeda
Принадлежит: Toshiba Corp

A reference-voltage generating circuit of an embodiment includes a first FET; a second FET; a first resistor in which one end is connected to a power supply while the other end is connected to a drain of the first FET; and a second resistor that is connected between the drain and a gate of the first FET, wherein a gate and a source of the second FET are connected, a drain of the second FET is connected to the gate of the first FET, the drain of the first FET outputs a reference voltage, and the source of the first FET and the source of the second FET are connected to a ground or another circuit.

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16-08-2012 дата публикации

Internal power supply voltage generation circuit

Номер: US20120206172A1
Автор: Masakazu Sugiura
Принадлежит: Seiko Instruments Inc

Provided is an internal power supply voltage generation circuit, with which a through current that flows during the operation of a logic circuit can be prevented from being excessive due to fluctuations in threshold voltage of a P-type transistor and an N-type transistor forming the logic circuit, and current consumption can be suppressed. Provided is an internal power supply voltage generation circuit for generating an internal power supply voltage at an internal power supply terminal and supplying the internal power supply voltage to a logic circuit, the internal power supply voltage generation circuit including a transistor having a source follower configuration for outputting a voltage applied to a gate thereof. A value of the internal power supply voltage is given based on the sum of an absolute value of a threshold voltage of an N-type transistor and an absolute value of a threshold voltage of a P-type transistor.

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30-08-2012 дата публикации

Method of generating multiple current sources from a single reference resistor

Номер: US20120218026A1
Принадлежит: RF Micro Devices Inc

A differential voltage controlled current source generating one or more output currents is based upon a single external resistor. The differential voltage controlled current source may generate an output current that is proportional to a received differential voltage and a bias current with the use of a single external resistor. The technique may be used to generate multiple accurate and process independent current sources. The current sources may be a zero temperature coefficient (ZTC) current, a proportional to absolute temperature (PTAT) current, or an inversely proportional to absolute temperature (NTAT) current. The output of the current sources may be inversely proportional to the resistance of the external resistor.

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11-10-2012 дата публикации

Band-gap voltage generator

Номер: US20120256605A1
Принадлежит: STMICROELECTRONICS SRL

A generator of a voltage logarithmically variable with temperature may include a differential amplifier having a pair of transistors, each coupled with a respective bias network adapted to bias in a conduction state the transistors first and second respectively with a constant current and with a current proportional to the working absolute temperature. The pair of transistors may generate between their control nodes the voltage logarithmically variable with temperature. The differential amplifier may have a common bias current generator coupled between the common terminal of the differential pair of transistors and a node at a reference potential, and a feedback line to provide a path for the current difference between the sum of currents flowing through the transistors of the differential pair and the common bias current.

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18-10-2012 дата публикации

Semiconductor device and data generation method

Номер: US20120265473A1
Принадлежит: Renesas Electronics Corp

Improvement in the accuracy of a temperature sensor is aimed at, suppressing the number of the test temperature in a test process. The semiconductor device comprises a coefficient calculation unit which calculates up to the N-th order coefficient (N is an integer equal to or greater than one) of a correction function as an N-th order approximation of a characteristic function indicating correspondence relation of temperature data measured by a temperature sensor unit and temperature, based on N+1 pieces of the temperature data including a theoretical value at a predetermined temperature in the characteristic function and N measured values of the temperature data measured by the temperature sensor unit at N points of temperature; and a correction operation unit which generates data including information on temperature, by performing calculation using the correction function to which the coefficients calculated are applied, based on temperature data measured by the temperature sensor unit.

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25-10-2012 дата публикации

Clamping circuit to a reference voltage for ultrasound applications

Номер: US20120268092A1
Принадлежит: STMICROELECTRONICS SRL

A clamping circuit includes a clamping core connected to an output terminal and having a central node connected to a voltage reference and at least one first and one second clamp transistor, connected to the central node and having respective control terminals, the clamping core being also connected at the input to a low voltage input driver block. The clamping core includes a first switching off transistor connected to the output terminal and to the first clamp transistor, as well as a second switching off transistor connected to the output terminal and to the second clamp transistor.

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29-11-2012 дата публикации

Dc microgrid for interconnecting distributed electricity generation, loads, and storage

Номер: US20120299386A1
Принадлежит: Pika Energy Inc

A device includes an energy unit coupled to an energy device and adapted to couple a pair of split DC rails. A controller senses the voltage on the DC rails and regulates its output current response by means of an autonomous current response that creates the aggregate effect of controlling the rail voltage in cooperation with other units coupled to the DC rails. A system includes multiple such devices coupled to split DC rails.

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20-12-2012 дата публикации

Clock Integrated Circuit

Номер: US20120319756A1
Принадлежит: Macronix International Co Ltd

The clock circuit of an integrated circuit operates with variations such as temperature, ground noise, and power noise. Various aspects of an improved clock integrated circuit address one or more of the variations in temperature, ground noise, and power noise.

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17-01-2013 дата публикации

Ripple free band-gap voltage generator implementing a chopping technique and relative method

Номер: US20130015835A1
Принадлежит: STMICROELECTRONICS SRL

A band-gap reference voltage generator for generating a stable band-gap reference voltage including a chopped band-gap circuit, a first sample and hold circuit coupled to the chopped band-gap circuit, a second sample and hold circuit coupled to the chopped band-gap circuit, and an output circuit coupled to the first and second sample and hold circuits for generating the stable band-gap reference voltage.

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07-02-2013 дата публикации

Semiconductor integrated circuit

Номер: US20130033251A1
Автор: Shigeru Nagatomo
Принадлежит: Lapis Semiconductor Co Ltd

A semiconductor integrated circuit includes constant current circuit, starter circuit and power supply start-up circuit. In the constant current circuit, first current mirror circuit includes first and second transistors, and second current mirror circuit includes third and fourth transistors that are connected to first and second nodes. In the starter circuit, a potential of first node controls sixth transistor, seventh transistor is connected to third node, gate electrode of the seventh transistor is at ground potential, a capacitance element is connected to fourth node, and a potential of fourth node controls fifth transistor, which supplies start-up current to the constant current circuit via second node. In the power supply start-up circuit, source electrode of eighth transistor is fixed at power supply voltage, gate electrode is at ground potential, and drain electrode supplies power to the other circuits.

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21-03-2013 дата публикации

Offset calibration technique to improve performance of band-gap voltage reference

Номер: US20130069616A1
Принадлежит: Texas Instruments Inc

Offset calibration technique to improve performance of band gap voltage reference. An example of a bandgap reference source includes an output resistor, a first and second transistors and a differential amplifier. A positive-input calibration phase switch is in communication with a positive amplifier input, a emitter of the first and second transistor and a negative-input calibration phase switch in communication with the negative amplifier input, the emitter of the first and second transistor. A positive-output calibration phase switch is in communication with the positive amplifier output, the first and second terminal of the output resistor and a negative-output calibration phase switch is in communication with the negative amplifier output, the first and second terminal of the output resistor. An adjustable resistance is in communication with the emitter of the first transistor, the emitter of the second transistor, and the second terminal of the output resistor.

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28-03-2013 дата публикации

Method of Evaluating and Ensuring Stability of AC/DC Power Systems

Номер: US20130076332A1

Approximating loci of eigenvalues or characteristic gains of a return ratio matrix of a model of a multi-phase power converter circuit by the loci of the d-d and q-q elements of said synchronous frame of reference applied to said model, allows determination and assessment of stability of the circuit or forbidden operational parameters of the combination of an AC power source and a power converter at an interface thereof by application of a standard Nyquist stability criterion. 1. A method of assessing stability of a combination of an AC power source and an active front end (AFE) power converter , said method comprising steps ofapplying a synchronized frame of reference to a model of the AC source and power converter,approximating loci of eigenvalues or characteristic gains of a return ratio matrix of said model by the loci of the d-d and q-q impedance elements of said synchronous frame of reference applied to said model, anddetermining stability of said combination of said AC power source and said power converter at an interface thereof by application of a standard Nyquist stability criterion.2. The method as recited in claim 1 , including a further step ofdetermining forbidden conditions of operation where instability of said combination of AC power source and power converter could occur.3. The method as recited in claim 1 , wherein said power converter is a DC power converter.4. The method as recited in claim 1 , wherein said power converter is an AC power converter.6. The method as recited in including a further step of aligning a d-axis of said d-q frame such that the q-axis voltage equals zero.7. The method as recited in wherein said assessment is conducted based solely on the source and load impedances measured on the d-q frame.8. The method as recited in claim 1 , wherein the standard Nyquist stability criterion is a single input claim 1 , single output Nyquist stability criterion.9. The method as recited in claim 1 , wherein said assessment is based solely ...

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28-03-2013 дата публикации

Voltage Level Shift Circuits And Methods

Номер: US20130076333A1
Автор: Wang Jin
Принадлежит: DIODES INCORPORATED

In one embodiment, the present invention includes a charge pump circuit. The charge pump circuit comprises a plurality of terminals, a plurality of switches for selectively coupling the plurality of terminals, and a control circuit. A first input terminal receives a first reference voltage and a second input terminal receives a second reference voltage. First, second, third, and fourth flying capacitor terminals and the first and second input terminals are selectively coupled together in different configurations. The control circuit selects the switches to actuate according to a cycling of at least three phases of configuration. The cycling shifts the first and second reference voltages to provide dual power supply rails. 1. An electrical circuit , comprisinga first terminal for engaging a first reference voltage;a second terminal for engaging a second reference voltage, which is a different from the first reference voltage;a first capacitor and a second capacitor;a plurality of switches operable to selectably connecting the first reference voltage and the second reference voltage to the first capacitor and the second capacitor; anda third capacitor having two terminals operable to be connected by the plurality of switches to the first capacitor and the second capacitor to generate at one of the two terminals a voltage outside the voltage range between the first reference voltage and the second reference voltage.2. The electrical circuit of claim 1 , in which the switches are integrated in one integrated circuit chip.3. The electrical circuit of claim 2 , in which the first capacitor and the second capacitor and the third capacitor are electrically externally connected to the integrated circuit chip.4. The integrated circuit chip of claim 2 , further comprising a control circuit for selectably activating and de-activating the plurality of switches.5. The control circuit of claim 4 , further comprising a terminal for engaging a clock signal.6. The electrical circuit ...

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04-04-2013 дата публикации

Low voltage temperature sensor and use thereof for autonomous multiprobe measurement device

Номер: US20130083825A1
Принадлежит: Qualcomm Inc

A bandgap sensor which measures temperatures within an integrated circuit is presented. The sensor may include a first transistor having an emitter node coupled series to a first resistor and a first current source, wherein a PTAT current flows through the first resistor, and a second transistor having a base node coupled to a base node of the first transistor, and a collector node coupled to a collector node of the first transistor, further wherein the first and second transistors are diode connected. The sensor may further include a first operational amplifier providing negative feedback to the first current source, wherein the negative feedback is related to a difference in the base-emitter voltages of the first and second transistors, and a second operational amplifier which couples the base-emitter voltage of the second transistor across a second resistor, wherein a CTAT current flows through the second resistor.

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11-04-2013 дата публикации

CONSTANT CURRENT CIRCUIT AND LIGHT EMITTING DIODE DRIVING DEVICE USING THE SAME

Номер: US20130088157A1
Автор: Noda Ippei
Принадлежит: RICOH COMPANY, LTD.

A constant current circuit includes a first transistor, a second transistor having the gate and the source connected to the gate and the source of the first transistor, and having the drain connected to a load, a voltage adjustment circuit section that controls the drain voltage of the first transistor, a constant current generation circuit section that supplies a constant current to the first transistor, and a detection circuit section that determines whether at least one of the first transistor and the second transistor is unable to output a current proportional to the first constant current while at least one of the first transistor and the second transistor operates in the linear region, by performing a voltage comparison between a voltage at a connecting section between the voltage adjustment circuit section and the constant current generation circuit section and a predetermined reference voltage. 1. A constant current circuit that generates a predetermined constant current and supplies the predetermined constant current to a load , the constant current circuit comprising:a first transistor composed of a MOS transistor that flows a current in accordance with a control signal input to the gate of the first transistor;a second transistor composed of a MOS transistor having a same conductivity type as that of the first transistor, the gate and the source of the second transistor corresponding to and being connected to the gate and the source, respectively, of the first transistor, the drain of the second transistor being connected to the load, the second transistor supplying a current to the load, the current being in accordance with the control signal input to the gate of the second transistor;a voltage adjustment circuit section that controls the drain voltage of the first transistor in accordance with the drain voltage of the second transistor;a constant current generation circuit section that is composed of a first current source that supplies a predetermined ...

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11-04-2013 дата публикации

Apparatus and method for supplying power to 300 pin msa 40gb transponder

Номер: US20130088282A1
Автор: Xueyu Yu
Принадлежит: ZTE Corp

The disclosure provides a method and an apparatus for supplying power to a 300 PIN MSA 40 Gb TRANSPONDER. The apparatus comprises a power control module ( 31 ), a second resistor (R 2 ), a third resistor (R 3 ) and a compensation circuit. The power control module ( 31 ) comprises an output terminal ( 311 ) and a reference voltage terminal ( 312 ). The output terminal ( 311 ) supplies power to the 300 PIN MSA 40 Gb TRANSPONDER through an Adaptable Power Supply (APS) Digital pin ( 33 ) of the 300 PIN MSA 40 Gb TRANSPONDER. The reference voltage terminal ( 312 ), one terminal of the second resistor (R 2 ), one terminal of the third resistor (R 3 ) and one terminal of the compensation circuit are connected with each other. The other terminal of the second resistor (R 2 ) is connected with an APS Set pin ( 35 ) of the 300 PIN MSA 40 Gb TRANSPONDER. The other terminal of the third resistor (R 3 ) is connected with an APS Sense pin ( 34 ) of the 300 PIN MSA 40 Gb TRANSPONDER. The other terminal of the compensation circuit is grounded. By virtue of the method and the apparatus, the selection range of the power control chip can be enlarged and the development cost can be reduced.

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11-04-2013 дата публикации

Method of generating multiple current sources from a single reference resistor

Номер: US20130088286A1
Принадлежит: RF Micro Devices Inc

A differential voltage controlled current source generating one or more output currents is based upon a single external resistor. The differential voltage controlled current source may generate an output current that is proportional to a received differential voltage and a bias current with the use of a single external resistor. The technique may be used to generate multiple accurate and process independent current sources. The current sources may be a zero temperature coefficient (ZTC) current, a proportional to absolute temperature (PTAT) current, or an inversely proportional to absolute temperature (NTAT) current. The output of the current sources may be inversely proportional to the resistance of the external resistor.

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18-04-2013 дата публикации

REFERENCE VOLTAGE GENERATORS, INTEGRATED CIRCUITS, AND METHODS FOR OPERATING THE REFERENCE VOLTAGE GENERATORS

Номер: US20130093504A1
Автор: JOU Chewn-PU, NAG Dipankar

A reference voltage generator is described. The reference voltage generator includes a proportional to absolute temperature (PTAT) current source, the PTAT current source being capable of providing a first current that is proportional to a temperature. The reference voltage generator further includes a current mirror comprising a first transistor and a second transistor, the current mirror configured to generate a second current proportional to the first current, wherein a ratio of the first current to the second current is equal to a ratio of a gate width of the first transistor to a gate width of the second transistor. The reference voltage generator further includes a voltage divider, the voltage divider being capable of receiving the second current, the voltage divider capable of outputting a reference voltage, the reference voltage being substantially independent from a change of the temperature. 1. A reference voltage generator comprising:a proportional to absolute temperature (PTAT) current source, the PTAT current source being capable of providing a first current that is proportional to a temperature;a current mirror comprising a first transistor and a second transistor, the current minor configured to generate a second current proportional to the first current, wherein a ratio of the first current to the second current is equal to a ratio of a gate width of the first transistor to a gate width of the second transistor; anda voltage divider, the voltage divider being capable of receiving the second current, the voltage divider capable of outputting a reference voltage, the reference voltage being substantially independent from a change of the temperature.2. The reference voltage generator of claim 1 , wherein a gate of the first transistor is configured to receive a same voltage as a gate of the second transistor.3. The reference voltage generator of claim 1 , wherein a source of the first transistor is configured to receive a same voltage as a source of the ...

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25-04-2013 дата публикации

Current source circuit with high order temperature compensation and current source system thereof

Номер: US20130099769A1
Автор: Fangping Fan
Принадлежит: IPGoal Microelectronics Sichuan Co Ltd

A current source circuit with high order temperature compensation, includes a reference voltage terminal, a first power module, a second power module, a control module, a current source output module and a bias current source module. The control module includes a first field-effect tube (FET), a second FET, and a third FET. The bias current source module includes a first bias current source and a second bias current source. The current source output module includes a fourth FET, a fifth FET, and an output terminal. The first power module includes a first comparator, a sixth FET, a first resistor and a second resistor. The second power module includes a second comparator, a seventh FET, a third resistor, and a fourth resistor. A current source system with high order temperature compensation is further provided.

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25-04-2013 дата публикации

Reference power supply circuit

Номер: US20130099770A1
Автор: LIANG Cheng

A reference power supply circuit includes an adjustable resistance network and a bandgap reference power supply circuit, in which the adjustable resistance network includes a first resistor end and a second resistor end, the resistance between the first resistor end and the second resistor end varies with a process deviation; the bandgap reference power supply circuit connects the first resistor end with the second resistor end, for generating a positive proportional to absolute temperature current flowing through the first resistor end and the second resistor end and for outputting a reference voltage related to the positive proportional to absolute temperature current. The reference power supply circuit has the advantageous of high precision and good temperature drift characteristic.

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02-05-2013 дата публикации

Light emitting apparatus and method of manufacturing and using the same

Номер: US20130106305A1
Принадлежит:

An apparatus includes a load circuit operatively coupled to a controller circuit through a drive circuit. The drive circuit provides a drive signal to the load circuit in response to receiving a digital indication from the controller circuit. The load circuit includes first and second light emitting sub-circuits connected in parallel. The first and second light emitting sub-circuits provide first and second spectrums of light, respectively. 1. A method comprising providing a digital signal S drive having a square waveform and varying between a first voltage and a second voltage , maintaining a voltage of the signal Sdrive substantially constant at a third voltage that is between the first voltage and the second voltage for a period of time as said voltage of the digital signal Sdrive changes from the first voltage to the second voltage , and modulating at least one of a digital signal Scontrol and a digital signal Scom with the digital signal Sdrive during said period of time.2. A method according to in which the third voltage has a value other than zero volts.3. A method according to wherein the third voltage is other than midway between the first voltage and the second voltage.4. A method according to wherein the third voltage is sufficiently high to enable a controller switch to function in the absence of the digital signal Sdrive claim 3 , the controller switch being in electrical communication with a drive controller circuit which generates the digital signal Sdrive.5. A method according to in which the first voltage has a value greater than the second voltage claim 1 , the signal S drive has a falling edge as S drive changes from the first voltage to the second voltage claim 1 , and the period during which Sdrive is held constant occurs on the falling edge of the signal Sdrive before the voltage of Sdrive is equal to the second voltage.611. A system comprising a drive circuit in electrical communication with a digital drive controller circuit claim 1 , wherein ...

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02-05-2013 дата публикации

SEMICONDUCTOR DEVICE

Номер: US20130106388A1
Принадлежит:

In order to reduce parasitic inductance of a main circuit in a power supply circuit, a non-insulated DC-DC converter is provided having a circuit in which a power MOS·FET for a high-side switch and a power MOS·FET for a low-side switch are connected in series. In the non-insulated DC-DC converter, the power MOS·FET for the high-side switch is formed by a p channel vertical MOS·FET, and the power MOS·FET for the low-side switch is formed by an n channel vertical MOS·FET. Thus, a semiconductor chip formed with the power MOS·FET for the high-side switch and a semiconductor chip formed with the power MOS·FET for the low-side switch are mounted over the same die pad and electrically connected to each other through the die pad. 1. A semiconductor device comprising:a first semiconductor chip which includes a P-channel MOSFET including a source, a gate and a drain;a second semiconductor chip which includes a N-channel MOSFET including a source, a gate and a drain;a third semiconductor chip which includes a driver circuit for driving a gate of the P-channel MOSFET and a gate of the N-channel MOSFET;a resin encapsulator encapsulating the first, second and third semiconductor chips;an input power supply terminal exposed from the resin encapsulator and configured to be used for receiving an input power;a reference potential supply terminal exposed from the resin encapsulator and configured to be used for supplying a reference potential; andan output terminal exposed from the resin encapsulator and configured to be used for outputting an output,wherein the source and the drain of the P-channel MOSFET are coupled to the input power supply terminal and the output terminal, respectively,wherein the drain and the source of the N-channel MOSFET are coupled to the output terminal and the reference potential supply terminal, respectively, andwherein the drain of the P-channel MOSFET and the drain of the P-channel MOSFET are electrically and mechanically coupled to a metal material ...

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02-05-2013 дата публикации

Constant current circuit and voltage reference circuit

Номер: US20130106394A1
Автор: Yuji Kobayashi
Принадлежит: Seiko Instruments Inc

Provided is a constant current circuit in which an enhancement N-channel transistor can operate in a weak-inversion state even at high temperatures. A constant current circuit includes a current mirror circuit, a constant-current generation block circuit, and an off-leak circuit, wherein the off-leak circuit is constituted by a first enhancement N-channel transistor having a gate and a source connected to an earth terminal and a drain connected to an output of the constant current circuit. This suppresses an increase in a gate-to-source voltage of the enhancement N-channel transistor which generates a constant current, thereby maintaining its operation in a weak-inversion state.

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02-05-2013 дата публикации

System and Method for Providing a Low-Power Self-Adjusting Reference Current for Floating Supply Stages

Номер: US20130106395A1
Автор: Del Croce Paolo
Принадлежит: INFINEON TECHNOLOGIES AG

A system and method for providing an accurate current reference using a low-power current source is disclosed. A preferred embodiment comprises a system comprises a first section and a second section. The first section comprises a first simple current reference, an accurate current reference, and a circuit that generates a digital error signal based upon a comparison of an output of the first simple current reference and an output of the accurate current reference. The second section comprises a second simple current reference providing a second reference current, an adjustment circuit providing an adjustment current based upon the digital error signal, and a circuit biased with current equivalent to a summation of the second reference current and the adjustment current. The first simple current reference and the second simple current reference may be equivalent circuits. 1. A system comprising: a first current reference circuit comprising a first current reference topology;', 'a reference current generator having a second current reference topology; and', 'a circuit that generates a digital error signal based upon a comparison of an output of the first current reference circuit and an output of the reference current generator; and, 'a first section, comprising the adjustable second current reference circuit comprises the first current reference topology, and', 'the second current reference circuit is adjustable based on the digital error signal., 'a second section, comprising an adjustable second current reference circuit coupled to the digital error signal, wherein2. The system of claim 1 , wherein the first current reference circuit and the second current reference circuits are disposed on an integrated circuit.3. The system of claim 1 , wherein the circuit that generates a digital error signal further comprises:at least one transistor branch, each transistor branch having a node wherein a voltage at the node is based upon a difference between the output of the ...

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02-05-2013 дата публикации

REACTOR, AND COIL COMPONENT

Номер: US20130107580A1
Автор: Inaba Kazuhiro
Принадлежит: Sumitomo Electric Industries, Ltd.

Provided are a coil component capable of contributing to improving productivity of a reactor, and a reactor exhibiting good productivity. A reactor A includes one coil 2 formed by spirally winding a wire and a magnetic core which is disposed inside and outside the coil and which forms a closed magnetic circuit. The magnetic core includes an inner core portion disposed inside the coil and an outer core portion disposed around the coil The coil and the inner core portion constitute a coil component A held as an integral unit by a resin molded portion A shape of the coil is maintained by the resin molded portion Since the coil component A includes a portion of the magnetic core the number of components can be reduced, and the coil and the inner core portion can be easily placed into a case A when they are housed therein. The coil is easier to handle because the coil shape is constantly maintained without expanding or contracting. Workability in assembly of the reactor A is improved by employing the coil component A. 1. A reactor including a magnetic core arranged inside and outside a coil , the reactor comprising:one coil formed by spirally winding a wire;an inner core portion constituting one part of the magnetic core and inserted within the coil;a resin molded portion made of an insulating resin and covering at least a part of a surface of the coil, thereby holding a shape of the coil and holding the coil and the inner core portion integrally with each other; andan outer core portion constituting the other part of the magnetic core and disposed around the coil to form a closed magnetic circuit in cooperation with the inner core portion.2. The reactor according to claim 1 , wherein at least one end surface of the inner core portion is covered with a resin constituting the resin molded portion.3. The reactor according to claim 1 , wherein lead-out portions of the wire claim 1 , which are led out from a turn forming portion of the coil claim 1 , are covered with ...

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09-05-2013 дата публикации

METHODS AND CIRCUITS FOR GENERATING REFERENCE VOLTAGE

Номер: US20130113548A1
Автор: JANG SEONG-JIN
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A circuit for generating a reference voltage includes a first reference voltage generating circuit disposed outside a chip and a second reference voltage generating circuit disposed inside the chip. The first and second reference voltage generating circuits output first and second reference voltages to first and second output terminals, respectively. The second reference voltage generating circuit includes at least one pull-up resistor and at least one pull-down resistor. The pull-up resistor is coupled between a first node where an internal power supply voltage is coupled and the second output terminal. The pull-down resistor is coupled between a second node and the second output terminal, wherein a voltage at the second node is relatively lower than a voltage at the first node. A third reference voltage is outputted from a node where the first output terminal is coupled to the second output terminal. 1a first reference voltage generating circuit, disposed outside a chip, configured to output a first reference voltage to a first output terminal; and at least one pull-up resistor coupled between a first node and the second output terminal, wherein the first node is electrically coupled to an internal power supply voltage of the chip; and', 'at least one pull-down resistor coupled between a second node and the second output terminal, wherein a voltage at the second node is lower than a voltage at the first node, and wherein a third reference voltage is outputted from a node where the first output terminal is coupled to the second output terminal., 'a second reference voltage generating circuit, disposed inside the chip, configured to output a second reference voltage to a second output terminal, wherein the second reference voltage generating circuit includes. A circuit for generating a reference voltage for use in a semiconductor device, the circuit comprising: This application is a Continuation Application of U.S. patent application Ser. No. 11/191,376 filed on Jul ...

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16-05-2013 дата публикации

Multi-measurement vortex flowmeter

Номер: US20130119964A1
Принадлежит: Invensys Systems Inc

Two-wire transmitters are described in which the required voltage that a control room must supply to the transmitter is lower at high current than at low current, thus freeing up more voltage for other uses, and in which a constant set of operating voltages may be maintained. A corrected pressure in a vortex flow meter may be determined that reflects the mass flow rate. Thus, the mass flow rate may be determined based on the corrected pressure reading and a measured volumetric flow rate. Density may be determined from pressure and temperature using a table containing error values based on a standard density determination and a relatively simple approximation. During operation of a flow meter, the stored error values may be linearly interpolated and the approximation may be computed to determine the density from the stored error value.

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16-05-2013 дата публикации

DC-DC CONVERTER WITH AN AUXILIARY CIRCUIT FOR PERFORMING SOFT-SWITCHING

Номер: US20130119968A1
Принадлежит:

A voltage conversion circuit apparatus that adjusts a timing skew between the switching control of the first switching element and the switching control of the second switching element includes: a skew storage portion that stores a timing skew between the switching controls of the first and second switching elements after the voltage conversion circuit apparatus is manufactured; and a timing adjustment portion that corrects the stored timing skew and thereby adjusts the timing relation between a first pulse signal and a second pulse signal so as to bring within a permissible range the timing skew that occurs when the switching controls of the first and second switching elements are performed by using the first pulse signal and the second pulse signal. 1. A voltage conversion circuit apparatus that adjusts a timing skew of the switching control of switching elements after the voltage conversion circuit apparatus is manufactured , the voltage conversion circuit apparatus comprising:a voltage conversion circuit that includes a first switching element that performs a switching operation in order to accumulate energy in a reactor element, a capacitor element provided in parallel with the first switching element, and a second switching element that performs a switching operation in order to remove charge from the capacitor element before the first switching element performs the switching operation;a pulse signal generation portion that generates a first pulse signal for performing a switching control of the first switching element, and a second pulse signal for performing a switching control of the second switching element, so that the first pulse signal and the second pulse signal have a predetermined timing relation;a switching control portion that performs the switching control of each of the first switching element and the second switching element by using a skew-storing pulse signal in a predetermined timing relation after the voltage conversion circuit apparatus is ...

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23-05-2013 дата публикации

APPARATUS OF SUPPLYING POWER AND METHOD THEREFOR

Номер: US20130127436A1
Принадлежит: MACRONIX INTERNATIONAL CO., LTD.

A power supply apparatus and a method for supplying power are provided. The method includes: providing a first power supply for outputting a first power signal; providing a second first power supply for outputting a second power signal; and selectively charging the second power supply by using the first power supply. 1. An apparatus for supplying power , comprising:an assistance unit for providing at least one reference signal; and 'a power converter provided with at least one stage, wherein the at least one stage is selectively charged by the at least one reference signal.', 'a power supply device for outputting a power signal, the power supply device including2. The apparatus according to claim 1 , wherein the assistance provides a plurality of reference signals; the power converter is provided with a plurality of stages; and the reference signals charge the respective stages.3. The apparatus according to claim 2 , wherein the plurality of reference signals have different voltages.4. The apparatus according to claim 1 , wherein the stage is charged in a standby state.5. A method for supplying power claim 1 , comprising:providing a first power supply for outputting a first power signal;providing a second first power supply for outputting a second power signal; andselectively charging the second power supply by using the first power supply.6. The method according to claim 5 , further comprising:refreshing the first power supply when the first power signal is lower than a predetermined level; andrefreshing the second power supply when a number of times of refreshing the first power signal reaches a target number.7. The method according to claim 5 , wherein the second power supply is charged by the first power supply in a standby state.8. The method according to claim 5 , wherein when a second refresh time for the second power supply is reached claim 5 , the second power supply maintains the first power signal. This application is a continuation-in-part application of ...

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23-05-2013 дата публикации

Constant input current filter for power supplies and related system and method

Номер: US20130127437A1
Принадлежит: Raytheon Co

A system includes a capacitor and a current source configured to draw a constant input current from a power source and to generate an output current. The current source includes an n-type field effect transistor that is biased to operate as a constant current source. The current source is configured to provide the output current to the capacitor and charge the capacitor during a first time period associated with operation of a load. The current source is also configured to provide the output current to the load and the capacitor is configured to provide an additional current to the load during a second time period associated with operation of the load. The load could represent an electronic device having a time-varying output power characteristic, such as a wireless radio.

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23-05-2013 дата публикации

PHOTOCOUPLER OUTPUT SIGNAL RECEIVING CIRCUIT

Номер: US20130127438A1
Автор: TAKAGIWA Kazumi
Принадлежит: FUJI ELECTRIC CO., LTD.

In aspects of the invention, a photocoupler output signal receiving circuit includes a first constant current circuit, connected between an input terminal and the high potential side of a direct current power source, that discharges current, a second constant current circuit, connected between the input terminal and the low potential side of the direct current power source, that takes in current, and switching elements that operate the first and second constant current circuits in a complementary way, wherein the switching elements are operated so that current is taken in by the second constant current circuit after a photocoupler is turned on, and are operated so that current is discharged by the first constant current circuit after the photocoupler is turned off, and a discharge current value in a current discharge period is reduced after a certain period elapses from the start of discharging. 1. A photocoupler output signal receiving circuit that receives an output signal of a photocoupler wherein a signal output from a light emitting unit is transmitted to a light receiving unit in an isolated state , and a pull-up resistor is connected to the output side of the light receiving unit , the output signal receiving circuit being characterized by comprising:a first constant current circuit, connected between an input terminal into which the output signal is input and the high potential side of a direct current power source, that discharges current to the light receiving unit;a second constant current circuit, connected between the input terminal and the low potential side of the direct current power source, that takes in current from the direct current power source; andswitching elements that operate the first and second constant current circuits in a complementary way, whereinthe switching elements are operated so that current is taken in by the second constant current circuit after the photocoupler is turned on, and are operated so that current is discharged by ...

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23-05-2013 дата публикации

Semiconductor Device with Multiple Space-Charge Control Electrodes

Номер: US20130127521A1
Принадлежит: Sensor Electronic Technology Inc

A circuit including a semiconductor device having a set of space-charge control electrodes is provided. The set of space-charge control electrodes is located between a first terminal, such as a gate or a cathode, and a second terminal, such as a drain or an anode, of the device. The circuit includes a biasing network, which supplies an individual bias voltage to each of the set of space-charge control electrodes. The bias voltage for each space-charge control electrode can be: selected based on the bias voltages of each of the terminals and a location of the space-charge control electrode relative to the terminals and/or configured to deplete a region of the channel under the corresponding space-charge control electrode at an operating voltage applied to the second terminal.

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23-05-2013 дата публикации

DEVICE AND METHOD FOR PROVIDING POWER TO A MICROCONTROLLER

Номер: US20130127523A1
Автор: PACH Marek, Vereb Ferenc
Принадлежит: Lotek Wireless Inc.

A charge pump device and method for providing power to a microcontroller where the voltage required to operate the microcontroller (VCCmin) is greater than the voltage of the power source, which may be a single galvanic cell. The invention utilizes a flying capacitor circuit having a flying capacitor, and a supply capacitor connected to the power supply terminal of the microcontroller. The invention utilizes firmware that runs on the microcontroller and which controls the flying capacitor circuit to repeatedly switch the flying capacitor from being connected in series with the power source to being connected in parallel with the power source so as to maintain the voltage provided to the microcontroller at a level of at least VCCmin. 135-. (canceled)37. The charge pump of wherein the switching of the flying capacitor is performed in a pattern that is pre-determined to be sufficient to maintain the voltage supplied to the microcontroller at a level of at least VCCmin.38. The charge pump of wherein the pre-determined pattern is selected to maintain the voltage supplied to the microcontroller at a voltage in a pre-defined sub-range between a lower level that is greater than VCCmin and an upper level that is less than two times the voltage across the power source.39. The charge pump of wherein the supply capacitor is initially charged by an external power source.40. The charge pump of wherein the microcontroller monitors the voltage being provided to the microcontroller and switches the voltage through the flying capacitor as required to maintain the voltage being supplied to the microcontroller at a level of at least VCCmin.41. The charge pump of wherein the flying capacitor circuit further comprises two transistors claim 36 , one being a high-side switching transistor and the other being a low-side switching transistor.42. The charge pump of wherein the transistors are either P-channel or N-channel transistors or a mixture thereof.43. The charge pump of wherein the two ...

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23-05-2013 дата публикации

HIGH-VOLTAGE INTEGRATED CIRCUIT DEVICE

Номер: US20130127524A1
Автор: YAMAJI Masaharu
Принадлежит: FUJI ELECTRIC CO., LTD.

A high-voltage integrated circuit device can include, in a surface layer of a p semiconductor substrate, an n region which is a high-side floating-potential region, an n region which becomes a high-voltage junction terminating region, and an n region which is an L-VDD potential region. A low-side circuit portion can be disposed in an n region. Below a pickup electrode disposed in the high-voltage junction terminating region, a universal contact region in Ohmic contact with the pickup electrode can be disposed. The universal contact region has a p region and an n region that can be disposed in alternating contact along a surface of the p semiconductor substrate. By disposing the universal contact region in this way, the quantity of carriers flowing into the low-side circuit portion can be reduced when a negative surge voltage is input. Consequently, erroneous operation due to latchup of a logic portion can be minimized. 1. A high-voltage integrated circuit device , comprising:a semiconductor substrate of a first conduction type;a low-side circuit portion of a second conduction type, disposed on the semiconductor substrate and connected to a low-voltage power supply which takes a GND potential as reference;a high-side circuit portion of the second conduction type, disposed on the semiconductor substrate at a distance from the low-side circuit portion and connected to a low-voltage power supply which takes, as reference, an intermediate potential higher than the GND potential;a region of the first conduction type which is electrically connected to the GND potential, is disposed surrounding the high-side circuit portion, and forms a high-voltage junction terminating region together with an outer peripheral portion of the low-side circuit portion;a first pickup electrode, disposed in the first conduction type region;a second pickup electrode, connected to a high-potential side of the low-voltage power supply taking the intermediate potential as reference, and disposed on ...

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23-05-2013 дата публикации

IC CIRCUIT

Номер: US20130127525A1
Принадлежит:

The present invention relates to an IC circuit. In an embodiment, an IC circuit includes: an RT terminal connected to an external; a current mirroring unit conducting a channel current between internal voltage power and the RT terminal and generating an internal reference current mirrored with the channel current; a negative feedback unit receiving the internal reference current, equalizing voltages of an RT terminal connection terminal and an internal reference current output terminal of the current mirroring unit to make the internal reference current constant, and providing the internal reference current inside the IC circuit; and an IC state indicating unit having a transistor, which operates complementarily with the current mirroring unit, connected between the RT terminal and a ground and providing the state of an IC or a system to the RT terminal by being linked with the complementary operation of the current mirroring unit. 1. An IC circuit comprising:an RT terminal connected to an external resistor or other systems;a current mirroring unit for conducting a channel current between internal voltage power and the RT terminal and generating an internal reference current which is mirrored with the channel current;a negative feedback unit for receiving the internal reference current from the current mirroring unit, equalizing a voltage of an RT terminal connection terminal and a voltage of an internal reference current output terminal of the current mirroring unit to make the internal reference current constant, and providing the internal reference current inside the IC circuit; andan IC state indicating unit comprising a transistor, which operates complementarily with the current mirroring unit according to a driving signal, connected between the RT terminal and a ground and providing the state of an IC or a system to the RT terminal by being linked with the complementary operation of the current mirroring unit, andcharacterized by generating the internal ...

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23-05-2013 дата публикации

SWITCH CONTROLLER, SWITCH CONTROL METHOD, AND POWER SUPPLY DEVICE COMPRISING THE SWITCH CONTROLLER

Номер: US20130128640A1
Принадлежит: FAIRCHILD KOREA SEMICONDUCTOR LTD.

The present invention relates to a switch controller, a switch control method, and a power supply including the switch controller. An exemplary embodiment of the present invention detects an on-time of a power switch of the power supply and decreases a frequency of a clock signal according to a period during which the detected on-time is shorter than or equal to the minimum on-time. According to the exemplary embodiment, switching of the power switch is controlled according to a clock signal, and the minimum on-time is an on period of the power switch that cannot be shortened. 1. A switch controller controlling switching operation of a power switch , comprisinga control means detecting an on-time of the power switch and decreasing a frequency of a clock signal according to a period during which the detected on-time is shorter than or equal to the minimum on-time, anda switching control unit controlling switching of the power switch according to the clock signal,wherein the minimum on-time is an on period of the turn-on power switch and cannot be shortened.2. The switch controller of claim 1 , wherein the control means comprises:an on-time detector detecting the on-time using a switching control signal for switching control, generated from the switching control unit;a frequency controller controlling frequency decrease of a clock signal according to a period during which the detected on-time is shorter than the minimum on-time; andan oscillator generating the clock signal according to control of the frequency controller.3. The switch controller of claim 2 , wherein the on-time detector generates a ramp voltage corresponding to the on-time using the switching control signal and generates a detection signal according to a result of comparison between a threshold voltage corresponding to the minimum on-time and the ramp voltage.4. The switch controller of claim 3 , wherein the on-time detector comprises:a switching transistor performing switching according to the ...

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30-05-2013 дата публикации

SOLAR DEVICE

Номер: US20130134782A1
Автор: SEON Jong Kug
Принадлежит: LSIS CO., LTD

A solar device is provided. The solar device includes a solar module configured to absorb solar energy to convert the solar energy to electrical energy, a DC converter configured to detect an input voltage output from the solar module and outputs a DC voltage corresponding to a maximum power point through the detected input voltage, an interface unit configured to transmit data including the input voltage detected from the DC converter and the DC voltage corresponding to the maximum power point, a data combiner configured to combine and transmit data on the solar module with the data received from the interface unit, a data synthesizer configured to remove a DC voltage offset from the data received from the data combiner, and a data controller configured to track a maximum power point using data from which the DC voltage offset has been removed. 1. A solar device , comprising:a solar module configured to absorb solar energy to convert the solar energy into electrical energy;a DC converter configured to detect an input voltage output from the solar module and output a DC voltage corresponding to a maximum power point through the detected input voltage;an interface unit configured to transmit data comprising the input voltage detected from the DC converter and the DC voltage corresponding to the maximum power point;a data combiner configured to combine and transmit data on the solar module with the data received from the interface unit;a data synthesizer configured to remove a DC voltage offset from the data received from the data combiner; anda data controller configured to track a maximum power point using data from which the DC voltage offset has been removed.2. The device according to claim 1 , wherein the DC converter claim 1 , the interface unit claim 1 , the data combiner claim 1 , the data synthesizer claim 1 , and the data controller are connected by a DC cable line.3. The device according to claim 1 , wherein each of the solar module claim 1 , the DC ...

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30-05-2013 дата публикации

USING A SWITCHING SIGNAL DELAY TO REDUCE NOISE FROM A SWITCHING POWER SUPPLY

Номер: US20130134956A1
Автор: Khlat Nadim
Принадлежит: RF MICRO DEVICES, INC.

Embodiments of circuitry, which includes power supply switching circuitry, a first inductive element, and a second inductive element, are disclosed. The power supply switching circuitry provides a first switching output signal to the first inductive element and a second switching output signal to the second inductive element. The first inductive element has a first inductor current and the second inductive element has a second inductor current. The second switching output signal is delayed from the first switching output signal by a switching signal delay. The first inductor current and the second inductor current combine to provide a combined inductor current, which has a frequency response with a group of notches, such that frequency locations of the group of notches are based on the switching signal delay. 1. Circuitry comprising:a power supply output; and a first switching output signal to a first inductive element; and', the first inductive element is coupled between the power supply switching circuitry and the power supply output;', 'the second inductive element is coupled between the power supply switching circuitry and the power supply output;', 'the first inductive element is adapted to have a first inductor current; and', 'the second inductive element is adapted to have a second inductor current, such that the first inductor current and the second inductor current combine to provide a combined inductor current, which has a frequency response with a plurality of notches, such that frequency locations of the plurality of notches are based on the switching signal delay., 'a second switching output signal to a second inductive element, such that the second switching output signal is delayed from the first switching output signal by a switching signal delay, wherein], 'power supply switching circuitry adapted to provide2. The circuitry of wherein a waveshape of the second switching output signal is about equal to a waveshape of the first switching output signal ...

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30-05-2013 дата публикации

SEMICONDUCTOR SWITCH AND POWER CONVERSION APPARATUS

Номер: US20130134958A1
Принадлежит:

According to one embodiment, a switch includes a first element with a first withstand voltage, a second element whose withstand voltage is lower than the first withstand voltage, a diode which is connected between a positive electrode of the first element and a positive electrode of the second element in such a manner that a direction from the positive electrode of the second element toward the positive electrode of the first element is a forward direction and whose withstand voltage is equal to the first withstand voltage, a negative electrode of the first element and a negative electrode of the second element being connected, and a circuit configured to apply a positive voltage to the positive terminal output a pulse lower than the first withstand voltage when the first element goes off. 1. A semiconductor switch comprising:a main element which has an inverse conducting capability and is a voltage driving switching element with a high withstand voltage;a backflow prevention element whose withstand voltage is lower than that of the main element;a high-speed free-wheeling diode which is connected between a positive terminal and a negative terminal in such a manner that a direction from the negative terminal toward the positive terminal is a forward direction and which has a withstand voltage equal to that of the main element, a negative electrode of the main element and a negative electrode of the backflow prevention element being connected to each other, a positive electrode of the main element being used as the positive terminal, and a positive electrode of the backflow prevention element being used as the negative terminal; andan auxiliary voltage applying circuit which is connected in a direction in which a positive voltage is applied to the positive electrode of the main element and which generates at least a voltage pulse lower than the withstand voltage of the main element and outputs the voltage pulse almost in synchronization with the time when the main ...

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30-05-2013 дата публикации

CONTROLLER

Номер: US20130134959A1
Принадлежит: RENESAS ELECTRONICS CORPORATION

The disclosed invention provides a controller that can prevent overshoot and undershoot from occurring when a voltage is switched to another voltage without using two types of regulators. Voltage regulators supply a power supply voltage to a CPU. An SVID interface receives a command to change the number of voltage regulators to be actuated among the voltage regulators from outside. A phase clock generating circuit makes a stepwise change of the number of voltage regulators to be actuated from the current number of regulators to the commanded number of regulators after change. 1. A controller controlling a plurality of voltage regulators that supply a power supply voltage to a first semiconductor device , said controller comprising:an interface that receives a command to change the number of voltage regulators to be actuated among said voltage regulators from outside, anda control unit that makes a stepwise change of the number of voltage regulators to be actuated from the current number of regulators to the commanded number of regulators after change.2. The controller according to claim 1 , further comprising a register that stores schedules claim 1 , each schedule specifying the number of voltage regulators for each of a plurality of steps for each of combinations of a number as the number of voltage regulators before change and a number as the number of voltage regulators after change claim 1 ,wherein said control unit makes a stepwise change of the number of voltage regulators to be actuated, according to a schedule stored in said register.3. The controller according to claim 2 ,wherein said register further retains an execution time of each step, andwherein said control unit makes a stepwise change of the number of voltage regulators to be actuated, according to the execution time of each step specified in a schedule stored in said register.4. The controller according to claim 1 ,wherein said control unit outputs phase clocks to voltage regulators to be actuated ...

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30-05-2013 дата публикации

VOLTAGE MULTIPLYING CIRCUIT, SIGNAL SWITCH CHIP AND IMPEDANCE ADJUSTING METHOD THEREOF

Номер: US20130135037A1
Автор: Tsai Yi-Chung
Принадлежит:

A signal switch chip with a chip voltage is disclosed. The signal switch chip includes a transmission gate and a voltage multiplying circuit. The voltage multiplying circuit receives a basic voltage to generate a multiplying voltage, and the multiplying voltage is N times the basic voltage. N is a positive integer, and N is greater than 1. The transmission gate is coupled to the multiplying circuit and receives the multiplying voltage to adjust an equivalent impedance of the transmission gate, and the multiplying voltage is higher than the chip voltage. 1. A signal switch chip having a chip voltage , comprising:a voltage multiplying circuit, receiving a basic voltage to generate a multiplying voltage, wherein the multiplying voltage is N times the basic voltage, and N is a positive integer greater than 1; anda transmission gate, coupling the voltage multiplying circuit and receiving the multiplying voltage to adjust an equivalent impedance of the transmission gate, wherein the multiplying voltage is higher than the chip voltage.2. The signal switch chip according to claim 1 , wherein the chip voltage is higher than or substantially equal to the basic voltage.3. The signal switch chip according to claim 1 , wherein the voltage multiplying circuit comprises:a first voltage multiplying capacitor having one end receiving a first elected signal and the other end generating a first control signal;a second voltage multiplying capacitor having one end receiving a second elected signal and the other end generating a second control signal;an output capacitor, serially connecting an output terminal and a reference ground terminal;a first transmission channel coupling the output terminal and the first voltage multiplying capacitor and receiving the basic voltage, wherein the first transmission channel decides whether to conduct a coupling route between the first voltage multiplying capacitor and the basic voltage or to conduct a coupling route between the first voltage ...

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30-05-2013 дата публикации

INTERNAL POWER SUPPLY CIRCUIT, SEMICONDUCTOR DEVICE, AND MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE

Номер: US20130135039A1
Автор: HAYASHI Koichiro
Принадлежит: ELPIDA MEMORY, INC.

To provide an internal power supply circuit that supplies a power supply voltage to an internal circuit of a semiconductor device via an internal power supply wiring, the internal power supply circuit includes a plurality of power supply units connected in common to the internal power supply wiring and an internal-power-supply control circuit that selects either activation or deactivation with regard to at least a part of the power supply units. 1. A semiconductor device comprising:a current mirror circuit including an input node supplied with an input current and a plurality of output nodes each producing an output current that is responsive to the input current;a plurality of inversion circuits each including a power node that is coupled to a corresponding one of the output nodes of the current mirror circuit, the inversion circuits being coupled to constitute a ring oscillator; anda charge pumping circuit coupled to the ring oscillator to generate an internal voltage in response to an output of the ring oscillator.2. The semiconductor device as claimed in claim 1 , wherein the current mirror circuit further includes:a first terminal supplied with a first voltage different from the internal voltage;a second terminal supplied with a second voltage different from each of the internal voltage and the first voltage;a first transistor coupled between the first terminal and the input node and a gate of the first transistor is coupled to the input node; andsecond and third transistors coupled between the second terminal and the input node in parallel to each other;the input current being controlled in response to the third transistor.3. The semiconductor device as claimed in claim 2 , wherein the current mirror circuit further includes a fourth transistor claim 2 , the third and fourth transistors being coupled in series between the second terminal and the input node claim 2 , the second and fourth transistors being biased in common.4. The semiconductor device as claimed ...

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06-06-2013 дата публикации

Constant Current DC-DC Converter

Номер: US20130141006A1
Автор: Li Guo Jun, Song Wei
Принадлежит: STMicroelectronics, Inc.

A device includes a positive power supply voltage node; and a first operational amplifier including a first input, a second input, and an output coupled to the second input. The device further includes a first resistor coupled between the second input of the first operational amplifier and the positive power supply voltage node; a second resistor coupled between the output of the first operational amplifier and an electrical ground, and is configured to receive a same current flowing through the first resistor; a second operational amplifier including a first input coupled to the second resistor, and an output coupled to an output node; and a third resistor coupled between the electrical ground and a second input of the second operational amplifier. 1. A device comprising:a positive power supply voltage node;a first operational amplifier comprising a first input, a second input, and an output coupled to the second input;a first resistor coupled between the second input of the first operational amplifier and the positive power supply voltage node;a second resistor coupled between the output of the first operational amplifier and an electrical ground, and configured to receive a same current flowing through the first resistor;a second operational amplifier comprising a first input coupled to the second resistor, and an output coupled to an output node; anda third resistor coupled between the electrical ground and a second input of the second operational amplifier.2. The device of further comprising a bandgap reference voltage generator comprising an output coupled to the first input of the first operational amplifier.3. The device of claim 1 , wherein the first and the second operational amplifiers are in a chip claim 1 , and wherein each of the second input and the output of the second operational amplifier is coupled to an external pad/pin of the chip.4. The device of claim 3 , wherein the second input of the first operational amplifier is coupled to an additional ...

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06-06-2013 дата публикации

PHASE RECONFIGURABLE SWITCHING POWER SUPPLY

Номер: US20130141072A1
Принадлежит: RF MICRO DEVICES, INC.

Embodiments of circuitry, which includes power supply switching circuitry and a first inductive element, are disclosed. The power supply switching circuitry has a first switching output and a second switching output. The first inductive element is coupled between the first switching output and a power supply output. The power supply switching circuitry operates in one of a first operating mode and a second operating mode. During the first operating mode, the first switching output is voltage compatible with the second switching output. During the second operating mode, the first switching output is allowed to be voltage incompatible with the second switching output. 1. Circuitry comprising:a power supply output; and a first inductive element is coupled between the first switching output and the power supply output;', 'the power supply switching circuitry is adapted to operate in one of a first operating mode and a second operating mode;', 'during the first operating mode, the first switching output is voltage compatible with the second switching output; and', 'during the second operating mode, the first switching output is allowed to be voltage incompatible with the second switching output., 'power supply switching circuitry having a first switching output and a second switching output, wherein2. The circuitry of further comprising a first power supply claim 1 , which has the power supply output claim 1 , comprises the power supply switching circuitry and the first inductive element claim 1 , and is adapted to provide a first power supply output signal via the power supply output.3. The circuitry of wherein the first power supply further comprises power supply control circuitry adapted to select the one of the first operating mode and the second operating mode.4. The circuitry of wherein the first switching output is directly coupled to the second switching output.5. The circuitry of wherein the power supply control circuitry is prevented from selecting the second ...

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06-06-2013 дата публикации

CHARGE RECYCLING A 1 OF N NDL GATE WITH A TIME VARYING POWER SUPPLY

Номер: US20130141073A1
Принадлежит: Apple Inc.

This disclosure describes a time varying power supply that may include a resonator circuit comprising an inductor having first and second terminals, a first capacitor coupled to the first terminal, and a second capacitor coupled to the second terminal, where the first capacitor produces a first time varying power supply output and wherein the second capacitor produces a second time varying power supply output. The time varying power supply may further include an exciter circuit comprising a first PFET and a first NFET coupled to the first terminal and a second PFET and a second NFET coupled to the second terminal. The first and second PFETs and the first and second NFETs may be coupled to a corresponding one of four non-overlapping clock phases. 1. A time varying power supply , comprising:a resonator circuit comprising an inductor having first and second terminals, a first capacitor coupled to the first terminal, and a second capacitor coupled to the second terminal, wherein the first capacitor produces a first time varying power supply output and wherein the second capacitor produces a second time varying power supply output; andan exciter circuit comprising a first PFET and a first NFET coupled to the first terminal and a second PFET and a second NFET coupled to the second terminal, wherein each of the first and second PFETs and the first and second NFETs is coupled to a corresponding one of four non-overlapping clock phases.2. The time varying power supply of claim 1 , further comprising an amplitude self tuning circuit coupled to the exciter circuit claim 1 , wherein in response to detecting that the amplitude of the first and second time varying power supply outputs are lower than a ground voltage claim 1 , the amplitude self tuning circuit adjusts the exciter circuit to increase energy supplied by the exciter circuit claim 1 , and wherein in response to detecting that the amplitude of the first and second time varying power supply outputs are higher than a ...

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06-06-2013 дата публикации

DIRECT CURRENT VOLTAGE OUTPUT CIRCUIT AND SET TOP BOX

Номер: US20130145416A1
Автор: Nogi Akihiko
Принадлежит: ASAHI KASEI MICRODEVICES CORPORATION

When the conduction state of at least one MOS transistor of a PMOS transistor (P) and NMOS transistor (N) is switched to an off state, current which would be applied to the MOS transistor with a conduction state in the off state due to the conduction state becoming the off state is bypassed to a resistor (R, R). Due to this, an MOS transistor with a conduction state in the off state being supplied with direct current power as it is can be avoided and the withstand voltage of that MOS transistor does not have to be raised. For this reason, the manufacturing costs of the direct current voltage output circuit () can be kept down. At the same time, the circuit size of the direct current voltage output circuit () can be made smaller. 1. A direct current voltage output circuit that outputs a direct current voltage from an output terminal , comprising:a set of voltage-division resistors connected in series between a direct current power source and ground:voltage-division switching devices that are connected in series with the set of voltage-division resistors between the direct current power source and the ground and which switch electrical connection states of the set of voltage-division resistors;bypass resistors connected in parallel with the voltage-division switching devices; anda control circuit which controls the conduction states of the voltage-division switching devices.2. The direct current voltage output circuit as set forth in claim 1 , further comprising:when the control circuit switches the conduction state of a voltage-division switching device to an off state, the current from the direct current power source is bypassed to a bypass resistor.3. The direct current voltage output circuit as set forth in claim 1 , wherein the voltage-division switching devices comprise:a direct current power source-side voltage-division switching device connected between the direct current power source and a direct current power source-side voltage-division resistor among the ...

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13-06-2013 дата публикации

ADAPTIVE DEAD-TIME CONTROL

Номер: US20130147458A1
Принадлежит: MAXIM INTEGRATED PRODUCTS, INC.

A DC-to-DC converter includes first and second transistors that are connected in series between a supply voltage and ground and that are driven by PWM pulses. A junction of the transistors is connected to an inductance that is connected in series to a load. A first timing module determines a first time difference between a first edge of a first signal at the junction and a first edge of a second signal at a control terminal of the first transistor. A second timing module determines a second time difference between a second edge of the first signal and a second edge of the second signal. The first and second edges of the second signal respectively correspond to first and second edges of one of the PWM pulses. A delay module delays the first and second edges of the second signal respectively based on the first and second time differences. 1. A DC-to-DC converter comprising:first and second transistors each driven by pulse-width modulated (PWM) pulses and each having first and second terminals and a control terminal, wherein the first terminal of the first transistor is connected to a supply voltage, the second terminal of the first transistor and the first terminal of the second transistor are connected to a node, the second terminal of the second transistor is connected to ground, and the node is connected to an inductance that is connected in series to a load;a first timing module that determines a first time difference between a first edge of a first signal at the node and a first edge of a second signal at the control terminal of the first transistor, wherein the first edge of the second signal corresponds to a first edge of one of the PWM pulses;a second timing module that determines a second time difference between a second edge of the first signal at the node and a second edge of the second signal at the control terminal of the first transistor, wherein the second edge of the second signal corresponds to a second edge of the one of the PWM pulses; anda delay ...

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13-06-2013 дата публикации

Reference voltage generation circuit and internal volatage generation circuit using the same

Номер: US20130147544A1
Автор: Jong Ho Son, Young Joo Kim
Принадлежит: Hynix Semiconductor Inc

A reference voltage generation circuit configured to generate a reference voltage level that is compensated for based on an internal temperature change, where the reference voltage level is adjusted based on a resistance value controlled in response to a control signal.

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20-06-2013 дата публикации

INTERNAL COMBUSTION ENGINE IGNITION DEVICE

Номер: US20130152910A1
Принадлежит: FUJI ELECTRIC CO., LTD.

An internal combustion engine ignition device can determine ignition timing with high precision to perform ignition with high precision even where noise superimposed at the time of rise of current flowing through an ignition coil is generated. In an internal combustion engine ignition device including an output terminal for detecting an internal state such as a coil current, it is possible to prevent generation of pulse noise in the form of chattering at falling and rising edges of a voltage of the output terminal by using a hysteresis comparator, even if noise is superimposed at the time of rise of the coil current. Therefore, a voltage pulse with pulse width of high precision is transmitted to an electronic control unit without the influence of noise, and the ignition timing can be determined properly with high precision. 1. An internal combustion engine ignition device , in which an on-off control of current for energizing an ignition coil is performed by a switching element upon receiving a control signal , and an output terminal for externally outputting an ignition state of the ignition coil is provided , the internal combustion engine ignition device comprising:voltage converting means for converting the current to a voltage, the converted voltage being referred to as a sense voltage;first comparing means for comparing the sense voltage with each of two reference voltages, the two reference voltages being a first detection reference voltage for detecting the sense voltage at a time of rise and a first release reference voltage which is a voltage lower than the first detection reference voltage, to output a first output signal, the first comparing means having a hysteresis characteristic;second comparing means for comparing the sense voltage with each of two other reference voltages, the two reference voltages being a second detection reference voltage for detecting the sense voltage at a time of rise and a second release reference voltage which is a voltage ...

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20-06-2013 дата публикации

DC-DC CONVERTER, POWER RECEIVING DEVICE, AND POWER FEEDING SYSTEM

Номер: US20130154556A1

A circuit capable of keeping input impedance constant is provided. Further, a circuit which can contribute to improvement in power feeding efficiency in power feeding by a magnetic resonance method is provided. A voltage (a former voltage) proportional to a direct-current voltage input to a DC-DC converter from the outside and a voltage (a latter voltage) proportional to a current input from the outside are detected, and the ratio of the former voltage and the latter voltage are held constant. Accordingly, input impedance can be kept constant. Further, impedance conversion is performed in the DC-DC converter. Thus, even when the battery in which power feeding is performed exists on an output side of the DC-DC converter, input impedance can be kept constant. Consequently, power can be supplied to a power receiving device including the DC-DC converter and the battery with high power feeding efficiency by a magnetic resonance method. 1. A DC-DC converter comprising:a load;a first circuit comprising a first resistor;a second circuit comprising an instrumentation amplifier;a third circuit comprising an error amplifier; anda first switch,wherein one end of the load is electrically connected to one end of the first resistor and a first input terminal of the instrumentation amplifier,wherein the other end of the load is electrically connected to a second input terminal of the instrumentation amplifier and one end of the first switch,wherein the other end of the first resistor is electrically connected to a first input terminal of the error amplifier,wherein the second circuit is electrically connected to a second input terminal of the error amplifier, andwherein the third circuit is electrically connected to the first switch.2. The DC-DC converter according to claim 1 ,wherein the first circuit is configured to output a first voltage proportional to an input voltage input to the DC-DC converter to the third circuit,wherein the second circuit is configured to output a second ...

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20-06-2013 дата публикации

CONTROL OF POWER CONVERTERS WITH CAPACITIVE ENERGY TRANSFER

Номер: US20130154600A1
Автор: Giuliano David M.
Принадлежит: Arctic Sand Technologies, Inc.

An apparatus for power conversion comprises a voltage transformation element, a regulating element, and a controller; wherein, a period of the voltage transformation element is equal to a product of a coefficient and a period of the regulating circuit, and wherein the coefficient is selected from a group consisting of a positive integer and a reciprocal of said integer. 1. An apparatus for power conversion , said apparatus comprising a voltage transformation element , a regulating element , and a controller; wherein , a period of the voltage transformation element is equal to a product of a coefficient and a period of the regulating circuit , wherein said coefficient is selected from a group consisting of a positive integer and a reciprocal of said integer.2. The apparatus of claim 1 , wherein said regulating element is configured to pass continuous current therethrough.3. The apparatus of claim 1 , wherein said regulating element is configured to pass discontinuous current therethrough.4. The apparatus of claim 3 , wherein said regulating element is controlled so as to avoid passing current therethrough during a dead-time of the voltage transformation element.5. The apparatus of claim 1 , wherein said controller is configured to control multiple phases present in said regulating element and said voltage transformation element.6. The apparatus of claim 1 , wherein said controller is configured to control multiple phases present in said regulating element and said voltage transformation element so as to avoid passing current therethrough during dead-times associated with each of said multiple phases.7. The apparatus of claim 1 , further comprising a data processing unit and a memory unit claim 1 , at least one of which is configured to consume power provided by said power converter circuit.8. The apparatus of claim 1 , further comprising a data processing unit claim 1 , a display claim 1 , and a wireless transmitter and receiver claim 1 , at least one of which is ...

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20-06-2013 дата публикации

MAINTAIN POWER SIGNATURE (MPS) POWERED DEVICE (PD)

Номер: US20130154603A1
Принадлежит: MAXIM INTEGRATED PRODUCTS, INC.

A Maintain Power Signature (MPS) Powered Device (PD) is described. In one or more implementations, the MPS device comprises a current sensor configured to sense current flowing from Power Sourcing Equipment (PSE) to the PD. The current sense based MPS device also comprises a current generator configured to sink electrical current to prevent the PSE from removing power to the PD. Thus, the electrical current comprises a current amplitude characteristic selected based upon MPS requirements of the PSE. In some implementations, the current is sunk to a ground. In other implementations, the current is sunk to a storage device, such as a storage device included with the PD and/or external to the PD. 1. A current sense based Maintain Power Signature (MPS) Powered Device (PD) comprising:a current sensor configured to sense current flowing from Power Sourcing Equipment (PSE) to the PD; anda current generator configured to sink electrical current for preventing the PSE from removing power to the PD, the electrical current comprising a current amplitude characteristic selected based upon MPS requirements of the PSE.2. The current sense based MPS device as recited in claim 1 , wherein the current amplitude characteristic of the electrical current is selected based upon the IEEE 802.3at-2009 standard.3. The current sense based MPS device as recited in claim 1 , wherein the electrical current generated by the current generator has a magnitude selected so that the total current drawn by the PD is at least approximately ten milliamperes (10 mA) when the current generator is active.4. The current sense based MPS device as recited in claim 1 , wherein the current generator is configured to sink pulses of electrical current comprising timing characteristics selected based upon MPS requirements of the PSE.5. The current sense based MPS device as recited in claim 4 , wherein the current generator is configured to sink the pulses of electrical current for at least approximately seventy ...

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20-06-2013 дата публикации

Reference current generation circuit and reference voltage generation circuit

Номер: US20130154604A1
Автор: Masakazu Sugiura
Принадлежит: Seiko Instruments Inc

Provided are a reference current generation circuit and a reference voltage generation circuit, which have improved response speed when power supply is activated or fluctuates. In order to reduce a load capacitance of an operational amplifier, a transistor for providing a current to a transistor pair having a common gate-source voltage is provided, and the operational amplifier controls an ON-state resistance of the transistor.

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20-06-2013 дата публикации

CONSTANT VOLTAGE CIRCUIT AND ELECTRONIC DEVICE INCLUDING SAME

Номер: US20130154605A1
Принадлежит: RICOH COMPANY, LTD.

A constant voltage circuit includes an output control transistor to control an output current from an output terminal to keep an output voltage constant at a set voltage; and an excess-current protection circuit to control the output control transistor. The excess-current protection circuit includes a current increase restriction element to restrict increase in the output current to decrease the output voltage; a first current limitation circuit to limit a gate voltage of the output control transistor to decrease the output current, when the output voltage is decreased to a first limited voltage; a second current limitation circuit to limit a gate voltage of the output control transistor to decrease the output current, when the output voltage is decreased to a second limited voltage smaller than the first limited voltage; and a selector to select whether the first current limitation circuit is operated or stopped. 1. A constant voltage circuit comprising:an output terminal to output an output voltage;an output control transistor to control an output current from the output terminal to keep the output voltage constant at a predetermined set voltage; andan excess-current protection circuit to control the output control transistor to prevent an output current, output from the output control transistor, from exceeding a predetermined value, a current increase restriction element to restrict increase in the output current from the output control transistor to decrease the output voltage from the output terminal;', 'a first current limitation circuit to limit a gate voltage of the output control transistor to decrease the output current when the output voltage decreases to a first limited voltage from the predetermined set voltage;', 'a second current limitation circuit to limit a gate voltage of the output control transistor to decrease the output current when the output voltage decreases to a second limited voltage that is smaller than the first limited voltage from the ...

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20-06-2013 дата публикации

ADAPTIVE CASCODE CIRCUIT USING MOS TRANSISTORS

Номер: US20130154710A1
Автор: CHEN Jun, Grimm Michael

The present invention relates to a cascode circuit using MOS transistors. In one embodiment, an adaptive cascode circuit can include: (i) a main MOS transistor; (ii) n adaptive MOS transistors coupled in series to the drain of the main MOS transistor, where n can be an integer greater than one; (iii) a shutdown clamping circuit connected to the gates of the n adaptive MOS transistors, where the shutdown clamping circuit may have (n+1) shutdown clamping voltages no larger than rated gate-drain voltages of the main MOS transistor and n adaptive MOS transistors; and (iv) n conduction clamping circuits coupled correspondingly to the gates of the adaptive MOS transistors, where the n conduction clamping circuits may have n conduction clamping voltages no larger than the conduction threshold voltages of the adaptive MOS transistors. 1. An adaptive cascode circuit , comprising:a) a main MOS transistor, wherein a source of said main MOS transistor is configured as a first terminal of said adaptive cascode circuit, and wherein a gate of said main MOS transistor is configured as a control terminal of said adaptive cascode circuit;b) n adaptive MOS transistors coupled in series to a drain of said main MOS transistor, wherein a drain of a first adaptive MOS transistor is configured as a second terminal of said adaptive cascode circuit, and wherein n is an integer greater than one;c) a shutdown clamping circuit coupled to gates of said n adaptive MOS transistors, wherein said shutdown clamping circuit comprises (n+1) shutdown clamping voltages that are less than corresponding rated drain-gate voltages of said main MOS transistor and said n adaptive MOS transistors; andd) n conduction clamping circuits coupled to gates of corresponding said n adaptive MOS transistors, wherein said n conduction clamping circuits comprise n conduction clamping voltages greater than corresponding conduction threshold voltages of said adaptive MOS transistors;e) wherein when said main MOS transistor ...

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20-06-2013 дата публикации

Accurate Persistent Nodes

Номер: US20130154806A1
Автор: Stewart Roger Green
Принадлежит: INTELLEFLEX CORPORATION

A calibrated gate biasing circuit according to one embodiment includes a switched capacitor precision resistor; and a voltage reference. An electronic circuit for initiating a change in state of a host device, according to another embodiment, includes a counter coupled to a host device, the counter counting at a fixed interval, wherein the counter is reset to zero upon receiving a command from a remote device, wherein the count is compared to a reference value, wherein the host device changes states if the count matches the reference value, wherein operation of the counter continues in spite of an interruption in power supply from a power source. Asymmetrical differential amplifiers are also disclosed, according to various embodiments 1. A calibrated gate biasing circuit , comprising:a switched capacitor precision resistor; anda voltage reference.2. The circuit of claim 1 , wherein the voltage reference includes a matrix of forward biased diodes coupled to an outlet of the switched capacitor precision resistor.3. The circuit of claim 2 , wherein the matrix is calibrated based on a reference frequency.4. The circuit of claim 3 , wherein the reference frequency is received from a remote device.5. The circuit of claim 1 , wherein the current being controlled is less than about 10 picoamperes (pA).6. The circuit of claim 1 , wherein the circuit is embodied on a Radio Frequency Identification (RFID) tag.7. An RFID system claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'an RFID tag implementing the circuit of ; and'}an RFID reader in communication with the RFID tag.8. An electronic circuit for initiating a change in state of a host device claim 1 , comprising:a counter coupled to a host device, the counter counting at a fixed interval,wherein the counter is reset to zero upon receiving a command from a remote device,wherein the count is compared to a reference value,wherein the host device changes states if the count matches the reference value, ...

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20-06-2013 дата публикации

SOLAR POWER GENERATION SYSTEM, CONTROL DEVICE USED FOR SOLAR POWER GENERATION SYSTEM, AND CONTROL METHOD AND PROGRAM FOR SAME

Номер: US20130155739A1
Автор: Itako Kazutaka
Принадлежит: SCHOOL JUDICIAL PERSON IKUTOKUGAKUEN

In a light power generation system, a control device, a control method, and a program, efficient power can be supplied. The maximum power detection unit operates a MOSFET in a power converter circuit and open-circuits both ends of a solar cell panel in the maximum power detection mode. After that, the maximum power detection unit short-circuits both ends of the solar cell panel, detects a maximum power by monitoring the output power of the solar cell panel during a period from the open state to the short-circuited state, and defines the voltage of the solar cell panel as an optimal voltage when detecting the maximum power. In a tracking operation mode, the control unit performs PWM control with respect to the MOSFET by defining the optimal voltage to be a reference signal. Operations are repeated between the maximum power detection mode and the tracking operation mode. 1. A light power generation system comprising:a light power generation unit for generating power in response to incident light;a voltage detecting means for detecting an output voltage of the light power generation unit;a current detecting means for detecting an output current of the light power generation unit or a power detecting means for detecting an output power of the light power generation unit;a power converting means including a switching element, converting the output voltage of the light power generation unit in response to an on/off operation of the switching element, and outputting the power of the voltage; anda controlling means for alternately performing a control operation of a maximum power detection mode and a control operation of a tracking operation mode; and controlling the switching element in the two modes to control the conversion operation of the power converting means,wherein the controlling means, in the maximum power detection mode,makes the switching element in the power converting means operate to a first logic state to open the circuit between the output terminals of the ...

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20-06-2013 дата публикации

Universal Serial Bus Current Limit

Номер: US20130159737A1
Принадлежит: RESEARCH IN MOTION LIMITED

A load device includes a power input having an interface to a power supply; a peripheral power bus including an internal capacitance, and an active switch coupled to the power input and the peripheral power bus for applying power from the power input to the peripheral power bus. The load device also includes a switch controller coupled to the active switch for regulating the in-rush current drawn by the internal capacitance through the active switch while the internal capacitance is being charged. 1. A load device , comprising:a system power bus having a universal serial bus (USB) interface;a peripheral power bus;an active switch coupled to the system power bus and the peripheral power bus for applying power from the system power bus to the peripheral power bus and for controlling a plurality of operation intervals of the active switch; anda switch controller coupled to the active switch, the switch controller cyclically opening and closing the active switch by applying a periodic gate signal during a first operational interval of the plurality of operational intervals, the periodic gate signal comprising a plurality of pulses, so as to limit the current drawn by the peripheral power bus to be within USB standard limits, and the switch controller maintaining the active switch fully on during a second operational interval of the plurality of operational intervals.2. The load device of claim 1 , wherein the second operational interval begins when one or more capacitors in communication with the peripheral power bus have charged up to a predetermined voltage level.3. The load device of claim 1 , wherein the applied periodic gate signal is further determined to maintain an instantaneous voltage at the system bus above a predetermined lower limit.4. The load device of claim 1 , wherein the applied periodic gate signal is further determined to bring at least one capacitor in communication with the peripheral power bus up to a predetermined voltage level.5. The load device ...

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27-06-2013 дата публикации

POWER-SUPPLY DEVICE

Номер: US20130162033A1
Принадлежит:

A power-supply device has a DC power supply, a load, a booster circuit disposed between the DC power supply and the load, wherein the booster circuit supplies a voltage at the DC power supply to the load while boosting the voltage, a bypass element disposed between the DC power supply and the load, wherein the bypass element constitutes a bypass path with respect to the booster circuit, a controller that controls an operation of the booster circuit, a first switching element that drives the bypass element in a first driving path, and a second switching element that drives the bypass element in a second driving path. 1. A power-supply device comprising:a DC power supply;a load;a booster circuit disposed between the DC power supply and the load, wherein the booster circuit supplies a voltage at the DC power supply to the load while boosting the voltage;a bypass element disposed between the DC power supply and the load, wherein the bypass element constitutes a bypass path with respect to the booster circuit;a controller that controls an operation of the booster circuit;a first switching element that drives the bypass element in a first driving path; anda second switching element that drives the bypass element in a second driving path,wherein, based on an externally-input first signal, the first switching element and the second switching element are turned on to drive the bypass element through the first driving path and the second driving path, and the controller puts the booster circuit in a non-operating state to supply a voltage from the DC power supply to the load through the bypass element, andwherein, based on an externally-input second signal, the first switching element and the second switching element are turned off to stop the drive of the bypass element through the first driving path and the second driving path, and the controller puts the booster circuit in an operating state to supply the voltage from the DC power supply to the load through the booster ...

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27-06-2013 дата публикации

REFERENCE POTENTIAL GENERATION CIRCUIT

Номер: US20130162238A1
Автор: Watanabe Kazunori

A reference potential generation circuit is provided. The reference potential generation circuit includes first to third input terminals, first and second output terminals, a low-pass filter including first to third terminals, and a linear regulator including first to fourth terminals. In the reference potential generation circuit, the first terminal of the low-pass filter is electrically connected to the second input terminal. The second terminal of the low-pass filter is electrically connected to the first input terminal or the third input terminal The third terminal of the low-pass filter is electrically connected to the first terminal of the linear regulator. The second terminal of the linear regulator is electrically connected to the first input terminal and the first output terminal. The third terminal of the linear regulator is electrically connected to the second output terminal. The fourth terminal of the linear regulator is electrically connected to the third input terminal. 1. A circuit comprising:a first input terminal;a second input terminal;a third input terminal;an output terminal;a low-pass filter whose first terminal is electrically connected to the second input terminal and whose second terminal is electrically connected to the third input terminal; anda linear regulator whose first terminal is electrically connected to a third terminal of the low-pass filter, whose second terminal is electrically connected to the first input terminal, whose third terminal is electrically connected to the output terminal, and whose fourth terminal is electrically connected to the third input terminal.2. The circuit according to claim 1 , further comprising:a second output terminal electrically connected to the second terminal of the linear regulator.3. The circuit according to claim 1 , wherein the second input terminal is arranged so that a start pulse signal is supplied.4. The circuit according to claim 1 , wherein the first input terminal is arranged so that a ...

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27-06-2013 дата публикации

Time-Multiplexed-Capacitor DC/DC Converter With Multiple Outputs

Номер: US20130162336A1
Автор: Richard K. Williams
Принадлежит: Advanced Analogic Technologies Inc

A multiple output DC-to-DC voltage converter using a new time-multiplexed-capacitor converter algorithm and related circuit topologies is herein disclosed. One embodiment of this invention includes a flying capacitor, a first output node, a second output node, and a switching network. The switching network configured to provide the following modes of circuit operation: 1) a first mode where the positive electrode of the flying capacitor is connected to an input voltage and the negative electrode of the flying capacitor is connected to ground; 2) a second mode where the negative electrode of the flying capacitor is connected to the input voltage and the positive electrode of the flying capacitor is connected to the first output node; and 3) a third mode where the positive electrode of the flying capacitor is connected to ground and the negative electrode of the flying capacitor is connected to the second output node.

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27-06-2013 дата публикации

CHARGE PUMP CIRCUIT AND POWER-SUPPLY METHOD FOR DYNAMICALLY ADJUSTING OUTPUT VOLTAGE

Номер: US20130162337A1
Автор: CHIEN Chih-Kang
Принадлежит: Realtek Semiconductor Corp.

A charge pump circuit and power-supply method for dynamically adjusting output voltage is related to the charge pump circuit having three power-supply modes with different power conversion efficiencies. When supplying power, a pump unit controls the electrical connecting relations of a first flying capacitor, second flying capacitor, first storage capacitor and second storage capacitor through a first clock and second clock with non-overlapping working phases, to convert a source voltage into a positive output voltage and negative output voltage, thereby providing one of the three power-supply modes. 1. A charge pump circuit , comprising:a power receiving end, for receiving a source voltage;a ground end;a positive output end, for outputting a positive output voltage;a negative output end, for outputting a negative output voltage;a first storage capacitor, coupled between the positive output end and the ground end;a second storage capacitor, coupled between the negative output end and the ground end;a first flying capacitor;a second flying capacitor; anda pump unit, for controlling at least a connection relation of the first flying capacitor, the second flying capacitor, the first storage capacitor, and the second storage capacitor according to a first clock and a second clock with non-overlapping working phases, to convert the source voltage into the positive output voltage and the negative output voltage, thereby providing one of a first power-supply mode, a second power-supply mode and a third power-supply mode with different power conversion efficiencies.2. The charge pump circuit of further comprising:an amplitude detector, for detecting an amplitude of an input signal or an output signal of a post-stage circuit powered with the positive output voltage and the negative output voltage, so as to select one of the three power-supply modes of the pump unit.3. The charge pump circuit of claim 2 , wherein the amplitude detector selects the first power-supply mode when ...

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04-07-2013 дата публикации

Active Bleeder Circuit Triggering TRIAC in All Phase and Light Emitting Device Power Supply Circuit and TRIAC Control Method Using the Active Bleeder Circuit

Номер: US20130169177A1
Принадлежит: RICHTEK TECHNOLOGY CORPORATION

The present invention discloses an active bleeder circuit capable of triggering a tri-electrode AC switch (TRIAC) circuit in all phase. The active bleeder circuit receives a rectified signal having an OFF phase and an ON phase. The active bleeder includes: a detection circuit for generating a detection signal according to the rectified signal and accumulating the detection signal in the OFF phase of the rectified signal; and a current sinker circuit coupled to the detection circuit, for generates a latching current to trigger the TRIAC circuit by operating a switch when the detection signal exceeds a predetermined level. The present invention also discloses a light emitting device power supply circuit and a TRIAC control method using the active bleeder circuit. 1. A light emitting device power supply circuit , comprising:a tri-electrode AC switch (TRIAC) dimmer circuit, for generating a phase-cut AC dimming signal, wherein the phase-cut AC dimming signal has an OFF phase and an ON phase;a rectifier circuit, which is coupled to the TRAIC dimmer circuit, for generating a rectified dimming signal according to the phase-cut AC dimming signal, wherein the rectified dimming signal has an OFF phase and an ON phase corresponding to the OFF phase and the ON phase of the phase-cut AC dimming signal;a light emitting device driver circuit, for driving a light emitting circuit according to the rectified dimming signal; and a detection circuit, which is coupled to the rectifier circuit, for generating a detection signal and accumulating the detection signal in the OFF phase; and', 'a current sinker circuit, which is coupled to the detection circuit, for generating a latching current to trigger the TRIAC dimmer circuit by operating a switch therein when the detection signal exceeds a predetermined level., 'an active bleeder circuit, including2. The light emitting device power supply circuit of claim 1 , wherein the current sinker circuit turns OFF the switch therein to stop ...

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04-07-2013 дата публикации

HIGH GATE VOLTAGE GENERATOR AND DISPLAY MODULE INCLUDING THE SAME

Номер: US20130169181A1
Автор: Chang Meng-Sheng
Принадлежит: AU OPTRONICS CORPORATION

A high gate voltage generator and a display module are provided. The high gate voltage generator includes a pulse width modulation (PWM) signal generating circuit, a boost circuit, and an amplifier circuit. The PWM signal generating circuit is used for outputting a PWM signal. The boost circuit is electrically connected to the PWM signal generating circuit and used for receiving an input voltage to boost the input voltage according to the PWM signal and then outputting a power voltage. The amplifier circuit is electrically connected to the boost circuit and used for receiving a reference voltage to amplify the power voltage and then outputting a high gate voltage. The reference voltage is greater than the high gate voltage and is provided by a backlight module electrically connected to the amplifier circuit. 1. A high gate voltage generator comprising:a pulse width modulation signal generating circuit for outputting a pulse width modulation signal;a boost circuit electrically connected to the pulse width modulation signal generating circuit and for receiving an input voltage to boost the input voltage according to the pulse width modulation signal and then outputting a power voltage; andan amplifier circuit electrically connected to the boost circuit and for receiving a reference voltage to amplify the power voltage and then outputting a high gate voltage, wherein the reference voltage is greater than the high gate voltage.2. The high gate voltage generator as recited in claim 1 , further comprising:a shading circuit electrically connected to the amplifier circuit for shading the high gate voltage and then outputting the shaded high gate voltage.3. The high gate voltage generator as recited in claim 2 , wherein the pulse width modulation signal generating circuit claim 2 , a portion of the amplifier circuit claim 2 , and the shading circuit are integrated into an integrated circuit.4. The high gate voltage generator as recited in claim 1 , wherein the pulse width ...

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04-07-2013 дата публикации

Voltage Regulator and a Method for Reducing an Influence of a Threshold Voltage Variation

Номер: US20130169250A1
Принадлежит: EPCOS AG

A voltage regulator can provide a regulated output voltage. The voltage regulator includes a regulating module that includes a resistor and a field effect transistor that has a threshold voltage. The resistor is coupled to a gate terminal and a source terminal of the field effect transistor. The regulating module provides the output voltage. A reference module is suitable for detecting a variation of the output voltage. The reference module is coupled with the regulating module. A current sink is suitable for subtracting a compensation current from the current flowing from the regulating module to the reference module. The compensation current is dependent on a variation of the threshold voltage. 114-. (canceled)15. A voltage regulator for providing a regulated output voltage , the voltage regulator comprising:a regulating module comprising a resistor and a field effect transistor that has a threshold voltage, the resistor being coupled to a gate terminal and a source terminal of the field effect transistor, wherein the regulating module provides the output voltage;a reference module configured to detect a variation of the output voltage, the reference module being coupled to the regulating module; anda current sink configured to subtract a compensation current from current flowing from the regulating module to the reference module, the compensation current being dependent on a variation of the threshold voltage.16. The voltage regulator according to claim 15 , wherein the regulating module is configured to regulate a current flowing through the resistor.17. The voltage regulator according to claim 15 , wherein the reference module and the current sink are configured to enable a reference current through the reference module to change in response to the variation of the output voltage.18. The voltage regulator according to claim 15 , wherein the reference module comprises a transistor having a base terminal to which the output voltage is applied.19. The voltage ...

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04-07-2013 дата публикации

METHOD OF CONTROLLING MULTI LEVEL CONVERTER

Номер: US20130169257A1
Принадлежит:

A method of controlling a multilevel converter is provided. In the method of controlling a multilevel converter according to an embodiment, a sub-module having the maximum voltage and a sub-module having the minimum voltage respectively are extracted from among a plurality of sub-modules. An amount of state variation of each of the plurality of sub-modules is determined. When the amount of state variation is not determined to be 0, a direction of a current flowing through the plurality of sub-modules is detected. A subsequent state of at least one sub-module is determined according to at least one of the amount of the state variation and current direction. Subsequently an arrangement time for sub-module values can be efficiently reduced while the number of the sub-modules increases in the voltage balancing. 1. A method of controlling a multilevel converter , comprising:extracting a sub-module having the maximum voltage and a sub-module having the minimum voltage respectively from among a plurality of sub-modules;determining an amount of state variation of each of the plurality of sub-modules;when the amount of state variation is not determined to be 0, detecting a direction of a current flowing through the plurality of sub-modules; anddetermining a subsequent state of at least one sub-module according to at least one of the amount of state variation and current direction.2. The method according to claim 1 , wherein the amount of state variation of each of the plurality of sub-modules is a value obtained by subtracting number of sub-modules in ON state in a previous sampling from number of sub-modules in ON state in a current sampling.3. The method according to claim 1 , wherein the determining of a subsequent state of at least one sub-module is repeated number of times corresponding to the amount of the state variation to determine the subsequent state of said at least one sub-module.4. The method according to claim 1 , wherein the determining of a subsequent state ...

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04-07-2013 дата публикации

System and Method for a Low Voltage Bandgap Reference

Номер: US20130169259A1
Принадлежит: STMICROELECTRONICS PVT LTD

In accordance with an embodiment, a reference voltage generator includes a first current generator and a second current generator. The first current generator is configured to produce a first current proportional to a current through a first diode connected in series with the first resistance coupled between a first voltage and a second voltage, such that the first current is produced according to a first proportionality constant. The second current generator is configured to produce a second current proportional to a current through a second diode connected in series with the second resistance coupled between the first voltage and the second voltage, such that the second current is produced according to a second proportionality constant. The reference voltage generator further includes a reference resistor coupled to the first and second current generators and to and output of the reference voltage generator.

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04-07-2013 дата публикации

CURRENT MIRROR WITH LOW HEADROOM AND LINEAR RESPONSE

Номер: US20130169260A1
Автор: HERRERA Sandro
Принадлежит: ANALOG DEVICES, INC.

A current mirror circuit provided in an emitter follower configuration achieves linearly output over a range of input currents by operating in response to a bias current that is a replica of the input current. The current mirror may include a pair of transistors and a pair of resistors, in which: a first resistor and a base of a first transistor are coupled to a first input terminal for a first input current, an emitter of the first transistor and a base of the second transistor are coupled to a second input terminal for a second input current, the first and second input currents being replicas of each other, an emitter of the second transistor being coupled to the second resistor, a collector of the second transistor being coupled to an output terminal of the current mirror, and a collector of the first transistor and the two resistors are coupled to a common node. 1. A complementary current mirror system , comprising: each current mirror includes a pair of transistors and a pair of resistors,', 'a first and a second current mirrors of the three current mirrors share a transistor and a resistor, and', 'output currents generated by the second current mirror and a third current mirror provide bias currents to the third and first current mirrors respectively., 'three current mirrors connected in an emitter follower configuration, wherein'}2. The current mirror circuit of claim 1 , wherein the three current mirror include:a first resistor and a base of a first transistor coupled to a first input terminal for a first input current,an emitter of the first transistor and a base of the second transistor coupled to a second input terminal for a second input current that serves as bias current,an emitter of the second transistor coupled to the second resistor,a collector of the second transistor coupled to an output terminal, anda collector of the first transistor and the first and second resistors are coupled to a common node.3. The current mirror circuit of claim 2 , ...

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11-07-2013 дата публикации

SEMICONDUCTOR DEVICE AND POWER SUPPLY APPARATUS

Номер: US20130176013A1
Принадлежит: FUJITSU SEMICONDUCTOR LIMITED

A semiconductor device includes a first transistor including a GaN-based semiconductor stacked structure formed over a substrate, a first gate electrode having a plurality of first fingers over the semiconductor stacked structure, a plurality of first drain electrodes provided along the first fingers, and a plurality of first source electrodes provided along the first fingers; a second transistor including the semiconductor stacked structure, a second gate electrode having a plurality of second fingers over the semiconductor stacked structure, the second drain electrodes provided along the second fingers, and a plurality of second source electrodes provided along the second fingers; a drain pad provided over or under the first drain electrodes, and coupled to the first drain electrodes; a source pad provided over or under the second source electrodes, and coupled to the second source electrodes; and a common pad coupled to the first source electrodes and the second drain electrodes. 1. A semiconductor device comprising:a first transistor including a first GaN-based semiconductor stacked structure formed over a substrate, a first gate electrode having a plurality of first fingers over the first GaN-based semiconductor stacked structure, a plurality of first drain electrodes provided along the first fingers, and a plurality of first source electrodes provided along the first fingers;a second transistor including a second GaN-based semiconductor stacked structure formed over the substrate, a second gate electrode having a plurality of second fingers over the second GaN-based semiconductor stacked structure, and a plurality of second drain electrodes provided along the second fingers, and a plurality of second source electrodes provided along the second fingers;a drain pad provided over or under the plurality of first drain electrodes, and coupled to the plurality of first drain electrodes;a source pad provided over or under the plurality of second source electrodes, ...

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11-07-2013 дата публикации

MULTI-LEVEL VOLTAGE CONVERTER

Номер: US20130176014A1
Принадлежит: ABB TECHNOLOGY LTD.

The invention discloses a voltage source converter and a voltage source converter system. The voltage source converter comprises: a multi-level voltage source converter, being adapted to output a multiple levels of a first voltage at one of two first output terminals through a multiple of first conducting paths; a first energy store; and a first switching element, being arranged to directly connected with the first output terminal, and being adapted to switch the first energy store in or out of the first conducting path so as to combine a level of the voltage of the first energy store with the level of the first voltage as a second voltage output at a second output terminal. By having the topology as above, the voltage class of each of the power semiconductors can be kept lower with the number of the power semiconductors unchanged. Besides, Vis lowed as compared to conventional topology. This renders the reduction of the cost and the increase of the liability. 1. A voltage source converter , comprising:a multi-level voltage source converter that outputs multiple levels of a first voltage at one of two first output terminals through a multiple of first conducting paths;a first energy store; anda first switching element, directly connected with the one of the two first output terminals, that switches the first energy store in or out of the multiple of the first conducting paths so as to combine a level of a voltage of the first energy store with a level of the first voltage as a second voltage output at a second output terminal.2. The voltage source converter according to claim 1 , wherein: a second energy store;', 'a third energy store connected with the second energy store in series;', 'a first, a second, a third and a fourth power semiconductor connected in series, wherein the first power semiconductor is connected to the second energy store, the fourth power semiconductor is connected to the third energy store, a junction point between the second and the third ...

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11-07-2013 дата публикации

POWER EFFICIENCY IMPROVEMENT OF AN AUDIO AMPLIFIER BY ADAPTIVE CONTROL OF A CHARGE PUMP

Номер: US20130177175A1
Автор: TING Chia-Din
Принадлежит: RICHTEK TECHNOLOGY CORPORATION

A control circuit and method for an audio amplifier detect a signal for driving a speaker to control the switching frequency and the operation mode of a charge pump in the audio amplifier, to improve power efficiency of the audio amplifier. Preferably, a digital interface is further used to test the magnitude of the output signal of the audio amplifier, to reduce the costs of analog test. The charge pump has fewer switches and thus saves costs and die area of an integrated circuit. The control method needs only two phase control for the charge pump to generate a positive voltage and a negative voltage, and thus simplifies the operation of the circuit. 1. A control circuit for an audio amplifier including a power stage to generate an output signal according to a signal at an input terminal thereof for driving one or more speakers , the control circuit comprising:a charge pump connected to the power stage, operative to convert an input voltage into a variable positive voltage and a variable negative voltage for supplying to the power stage to generate the output signal; andan adaptive frequency and voltage controller connected to the charge pump, operative to detect a level of a signal related to the output signal to generate a clock signal and a mode select signal for the charge pump, thereby determining a switching frequency and an operation mode of the charge pump.2. The control circuit of claim 1 , wherein the adaptive frequency and voltage controller detects a level of the output signal to generate the clock signal and the mode select signal.3. The control circuit of claim 1 , wherein the adaptive frequency and voltage controller detects a level of a signal at an input terminal of the power stage to generate the clock signal and the mode select signal.4. The control circuit of claim 1 , further comprising an amplitude level setting circuit connected to the adaptive frequency and voltage controller claim 1 , operative to provide a plurality of reference voltages ...

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11-07-2013 дата публикации

Triangulated Rules Engine

Номер: US20130178990A1
Принадлежит:

The present invention is directed to a system and method for implementing demand-response operations with interoperating rules engines in a smart grid, and for implementing demand-response operations with interoperating rules engines distributed throughout the system in a smart grid. 1. A system for performing a demand side energy management program with interoperating rules engines , said system comprising:a first rule set containing a plurality of rules related to a demand side energy management program;a first rules engine communicatively connected to said first rules set;a second rule set containing a plurality of rules related to consumer preferences and level of participation in said demand side energy management program;a second rules engine communicatively connected to said second rules set;a third rule set containing a plurality of rules related to attached smart grid devices;a third rules engine communicatively connected to said third rules set;a fourth rules engine including a defined interface communicatively connected via a network to said first rules engine, said second rules engine, and said third rules engine wherein said fourth rules engine receives information and resolves constraints from said first rules engine, said second rules engine, and said third rules engine.2. The system of claim 1 , wherein said demand side energy management program is performed by a utility or energy aggregator.3. The system of claim 1 , further comprising a fifth rules engine communicatively connected to said fourth rules engine claim 1 , wherein said fifth rules engine includes an arbitrary fifth rule set claim 1 , and said fourth rules engines resolves constraints from said first rules engine claim 1 , said second rules engine claim 1 , said third rules engine and said fifth rules engine.4. The system of claim 1 , wherein said network comprises the public Internet.5. The system of claim 1 , wherein said network comprises an AMI network6. The system of claim 1 , ...

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