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Небесная энциклопедия

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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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 7. Отображено 7.
22-11-2016 дата публикации

System and method for providing surge protection for an AC direct step driver lighting system

Номер: US0009504121B2
Автор: Kyeongtae Moon, Jae Hong Jeong, Minjong Kim, Weifeng Chen, Juhwan Jeong, Gyehyun Cho, Jongho Kim, MOON KYEONGTAE, JEONG JAE HONG, KIM MINJONG, CHEN WEIFENG, JEONG JUHWAN, CHO GYEHYUN, KIM JONGHO, Moon Kyeongtae, Jeong Jae Hong, Kim Minjong, Chen Weifeng, Jeong Juhwan, Cho Gyehyun, Kim Jongho
Принадлежит: Altoran Chips & Systems, ALTORAN CHIPS & SYSTEMS

An AC direct driver lighting system including a surge protection circuit and a current limiting circuit is disclosed. According to one embodiment, the AC direct driver lighting system includes an LED load, a rectifier, and an LED driver configured to receive rectified AC voltage from an AC power source and drive the LED load. The AC direct driver lighting system further includes a surge protection circuit and a current limiting circuit disposed between the AC power source and the LED load. The surge protection circuit and the current limiting circuit suppress excessive current flowing through the AC direct driver lighting system.

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Номер записи: 1
18-02-2016 дата публикации

System and Method for Providing Surge Protection for an AC Direct Step Driver Lighting System

Номер: US20160050724A1
Автор: Chen Weifeng, Cho Gyehyun, Jeong Jae Hong, Jeong Juhwan, KIM Jongho, Kim Minjong, Moon Kyeongtae
Принадлежит:

An AC direct driver lighting system including a surge protection circuit and a current limiting circuit is disclosed. According to one embodiment, the AC direct driver lighting system includes an LED load, a rectifier, and an LED driver configured to receive rectified AC voltage from an AC power source and drive the LED load. The AC direct driver lighting system further includes a surge protection circuit and a current limiting circuit disposed between the AC power source and the LED load. The surge protection circuit and the current limiting circuit suppress excessive current flowing through the AC direct driver lighting system. 1. An alternating current (AC) lighting system comprising:an LED load;a rectifier configured to receive AC voltage from an AC power source and generate rectified AC voltage by rectifying the AC voltage from the AC power source;an LED driver configured to receive the rectified AC voltage from the rectifier and drive the LED load; anda surge protection circuit disposed between the AC power source and the LED driver; anda current limiting circuit disposed between the AC power source and the LED driver.2. The AC lighting system of claim 1 , wherein the surge protection circuit is selected from a group comprising a gas discharge tube claim 1 , a metal oxide varistor (MOV) claim 1 , a resistor claim 1 , and a transient-voltage-suppression (TVS) diode.3. The AC lighting system of claim 1 , wherein the surge protection circuit comprises a first surge protection circuit and a second surge protection circuit.4. The AC lighting system of claim 3 , wherein the first surge protection circuit is disposed between the AC power source and the rectifier claim 3 , and wherein the second surge protection circuit is disposed between the rectifier and the LED driver.5. The AC lighting system of claim 4 , wherein the second surge protection circuit includes a TVS diode claim 4 , or a TVS diode and a resistor connected in series.6. The AC lighting system of claim ...

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Номер записи: 2
21-05-2015 дата публикации

AC Direct Drive Lighting System for Providing Uniform Light Distribution

Номер: US20150137696A1
Автор: Jae Hong Jeong, Juhwan Jeong, Kyeongtae Moon, Minjong Kim, Weifeng Chen
Принадлежит: Altoran Chips & Systems

An AC lighting system for providing uniform light distribution is disclosed. According to one embodiment, the AC lighting system includes an AC driver and LED packages electrically connected to the AC driver. Each LED package includes a plurality of LED elements and is physically distributed over an illuminating surface of the AC lighting system. The AC driver has a first current sink that drives a first LED group and a second current sink that drives the first LED group and a second LED group. The first LED group includes at least one LED element from each of the LED packages, and the second LED group includes at least one LED element other that the first set of LED elements from each of the LED packages.

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Номер записи: 3
18-06-2015 дата публикации

Balanced AC Direct Driver Lighting System with a Valley Fill Circuit and a Light Balancer

Номер: US20150173150A1
Автор: Jae Hong Jeong, Juhwan Jeong, Kyeongtae Moon, Minjong Kim, Weifeng Chen
Принадлежит: Altoran Chips & Systems

An AC direct driver lighting system is disclosed. According to one embodiment, the AC direct driver lighting system includes an AC power source, a plurality of LED groups, and an AC driver comprising a current sink connected between the AC power source and the plurality of LED groups. The AC direct driver lighting system further includes at least one of a valley fill circuit and a load balancer circuit coupled to a target LED group of the plurality of LED groups. The valley fill circuit charges supplies electrical power to a target LED group and the load balancer circuit reduces the current flowing through the target LED group.

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Номер записи: 4
17-12-2020 дата публикации

AUTOMATIC APPLICATION DATA COLLECTION FOR POTENTIALLY INSIGHTFUL BUSINESS VALUES

Номер: US20200394329A1
Автор: Anand Puneet, Jayaprakash Ashwin, Jeong Juhwan, Srinivasaiah Vinay, TerBush Ryan Nicholas
Принадлежит:

In one embodiment, a method for automatic application data collection is disclosed. The method illustratively comprises determining a stack trace associated with one or more business transactions, wherein at least one application is configured to perform at least part of the one or more business transactions; identifying, based on the stack trace, one or more methods of the at least one application that were invoked during performance of the one or more business transactions; selecting, from the identified one or more methods, a set of the one or more methods by applying at least one scoring heuristic to the identified one or methods; and configuring one or more monitoring agents executing on the at least one application to instrument the selected set of the one or methods at one or more instrumentation points, wherein application performance data is generated by instrumentation of the one or more instrumentation points. 1. A method , comprising:determining, by a process, a stack trace associated with one or more business transactions, wherein at least one application is configured to perform at least part of the one or more business transactions;identifying, by the process and based on the stack trace, one or more methods of the at least one application that were invoked during performance of the one or more business transactions;selecting, by the process and from the identified one or more methods, a set of the one or more methods by applying at least one scoring heuristic to the identified one or methods; andconfiguring, by the process, one or more monitoring agents executing on the at least one application to instrument the selected set of the one or methods at one or more instrumentation points, wherein application performance data is generated by instrumentation of the one or more instrumentation points.2. The method as in claim 1 , wherein the stack trace is generated in response to an event selected from the group consisting of an invocation of an exit point ...

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Номер записи: 5
05-07-2016 дата публикации

AC direct drive lighting system for providing uniform light distribution

Номер: US9386644B2
Автор: Jae Hong Jeong, Juhwan Jeong, Kyeongtae Moon, Minjong Kim, Weifeng Chen
Принадлежит: Altoran Chips & Systems

An AC lighting system for providing uniform light distribution is disclosed. According to one embodiment, the AC lighting system includes an AC driver and LED packages electrically connected to the AC driver. Each LED package includes a plurality of LED elements and is physically distributed over an illuminating surface of the AC lighting system. The AC driver has a first current sink that drives a first LED group and a second current sink that drives the first LED group and a second LED group. The first LED group includes at least one LED element from each of the LED packages, and the second LED group includes at least one LED element other that the first set of LED elements from each of the LED packages.

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Номер записи: 6
19-10-2023 дата публикации

Wireless power transmission device

Номер: US20230336032A1
Автор: Choonsub Kim, Juhwan Jeong, Seungil BEAK
Принадлежит: LG ELECTRONICS INC

This wireless power transmission device comprises a plurality of transmission coils and a control unit. The plurality of transmission coils are arranged along a single direction, in a matrix, or in a honeycomb shape. The control unit is controlled so that transmission power is transmitted to a wireless power receiving device from one or more transmission coils from among the plurality of transmission coils in accordance with the location of the wireless power receiving device placed on the plurality of transmission coils.

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Номер записи: 7