DC-DC conversion circuit and method

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United States of America Patent

PATENT NO 9337741
APP PUB NO 20150236596A1
SERIAL NO

14586309

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Abstract

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According to the DC-DC conversion circuit and conversion method, variation of an input voltage is reflected by detecting a voltage at a secondary winding of a transformer, a reference voltage is adjusted by using the detected input voltage signal, a feedback voltage signal is compared with the reference voltage, a duty cycle control signal is adjusted according to a comparison result, and conduction and shutting-down of switching transistors are controlled according to the duty cycle control signal to adjust an output voltage of the DC-DC conversion circuit, so as to enable the output voltage to vary with the input voltage.

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Patent Owner(s)

  • HUAWEI TECHNOLOGIES CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fan, Xiaodong Shenzhen, CN 41 425

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