Auxiliary power supply apparatus and method for isolated power converters

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11848603
APP PUB NO 20230133307A1
SERIAL NO

18064816

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Abstract

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An apparatus includes a controller configured to generate a PWM signal for controlling a power switch of a forward converter, a bias switch and a bias capacitor connected in series and coupled to a bias winding of the forward converter, and a comparator having a first input connected to the bias capacitor, a second input connected to a predetermined reference and an output configured to generate a signal for controlling the bias switch to allow a magnetizing current from the bias winding to charge the bias capacitor when a voltage across the bias capacitor is less than the predetermined reference.

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Patent Owner(s)

Patent OwnerAddress
HUAWEI DIGITAL POWER TECHNOLOGIES CO LTDSHENZHEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dai, Heping Plano, US 84 682
Li, Yushan Allen, US 35 728
Ye, Liming Plano, US 92 541

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