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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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Применить Всего найдено 3. Отображено 3.
28-12-2016 дата публикации

PHASE LOCKED LOOP AND OPERATING METHOD THEREOF

Номер: KR1020160149362A
Автор: LEE, JA YOL, LEE, MIN JAE, KIM, CHEON SOO, KANG, JAE HYUN, HEO, MIN UK
Принадлежит:

A phase locked loop that generates an output clock signal to correspond to a reference clock signal, according to the present invention, comprises: a divider for dividing the output clock signal and generating a divided clock signal; a time-pulse converter for generating a time-pulse conversion signal having a pulse corresponding to a phase difference between the reference clock signal and the divided clock signal; and a digital control oscillator including an LC resonant circuit for generating the output clock signal, and controlling a frequency of the output clock signal, which is determined to correspond to the time constant of the LC resonant circuit according to the time-pulse conversion signal. A change capacitance keeping time for remaining a capacitance of the LC resonant circuit in a changed state is sequentially controlled by a change in the phase difference between the reference clock signal and the divided clock signal. COPYRIGHT KIPO 2017 (111) Time amplifier (112) Time-pulse ...

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Номер записи: 1
19-07-2017 дата публикации

DIGITAL PHASE FIXING LOOP AND DRIVING METHOD THEREOF

Номер: KR1020170083816A
Автор: LEE, JA YOL, LEE, MIN JAE, KIM, CHEON SOO, HEO, MIN UK
Принадлежит:

The present invention relates to a digital phase fixing loop capable of minimizing spurious noise. According to an embodiment of the present invention, the digital phase fixing loop includes: a digitally controlled oscillator which generates output oscillation signals corresponding to digital codes; a phase modulator which executes a phase interpolating operation for the output oscillation signals corresponding to phase control codes from a phase control unit; a time digital converter which uses the time difference between reference clock signals and modulated clock signals output from the phase modulator to generate error codes; an error detection unit which generates a delay code for compensating a phase shift error generated in the phase interpolation operation to correspond to the error code and the phase control code; a delay unit which delays at least one of the reference and modulated clock signals to supply the delayed signal to the time digital conversion unit; and a first decoder ...

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Номер записи: 2
20-07-2018 дата публикации

LOW POWER TIME AMPLIFIER AND OPERATING METHOD THEREOF

Номер: KR101880491B1
Автор: LEE, MIN JAE, HEO, MIN UK
Принадлежит: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY

According to the present invention, a time amplifier comprises: a first signal reproducing circuit performing a first signal reproducing operation and outputting a first output signal; a second signal reproducing circuit performing a second signal reproducing operation and outputting a second output signal; a first delay circuit outputting a second input signal delayed by a predetermined delay time from the second input signal; and a second delay circuit outputting a first input signal delayed by the predetermined delay time from the first input signal. When at least one of the first and second output signals becomes a high level, a corresponding signal reproducing operation is stopped, and the at least one output signal can be maintained in a high level. The present invention is able to reduce power consumption. COPYRIGHT KIPO 2018 ...

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Номер записи: 3