Invention Application
- Patent Title: RESONANT SWITCHING POWER CONVERTER AND DRIVING CIRCUIT THEREOF
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Application No.: US17520635Application Date: 2021-11-06
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Publication No.: US20220166324A1Publication Date: 2022-05-26
- Inventor: Kuo-Chi Liu , Ta-Yung Yang , Chung-Lung Pai
- Applicant: Richtek Technology Corporation
- Applicant Address: TW Zhubei City
- Assignee: Richtek Technology Corporation
- Current Assignee: Richtek Technology Corporation
- Current Assignee Address: TW Zhubei City
- Priority: TW110107557 20210303
- Main IPC: H02M3/158
- IPC: H02M3/158 ; H02M3/00 ; H02M3/07 ; H02M1/00 ; H02M1/36

Abstract:
A resonant switching power converter includes: a power stage circuit and a driving circuit. The power stage circuit includes: a resonant capacitor, a resonant inductor and switches. The driving circuit includes: drivers for driving the switches; and a power supply circuit for providing driving powers to the drivers. The power supply circuit includes: a voltage booster circuit generating a booster power supply according to a clock signal, a DC voltage and an output related signal; driving capacitors, wherein a voltage across each driving capacitor corresponds to one driving power; and supply diodes, which are coupled in series from the booster power supply along a forward direction of the supply diodes. A backward end of each supply diode is coupled to a positive end of one corresponding driving power, to charge one corresponding driving capacitor, thus generating the corresponding driving power.
Public/Granted literature
- US11742760B2 Resonant switching power converter and driving circuit thereof Public/Granted day:2023-08-29
Information query
IPC分类: