Invention Grant
- Patent Title: Series resonant converter capable of reducing peak voltage generated at power switches and peak current generated on secondary side when being turned on from off immediately
- Patent Title (中): 串联谐振变换器能够降低电源开关产生的峰值电压，并在二次侧接通时立即产生峰值电流
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Application No.: US12923875Application Date: 2010-10-13
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Publication No.: US08437153B2Publication Date: 2013-05-07
- Inventor: Jim-Hung Liang , Ching-Chuan Chen
- Applicant: Jim-Hung Liang , Ching-Chuan Chen
- Applicant Address: TW Taipei
- Assignee: Skynet Electronic Co., Ltd.
- Current Assignee: Skynet Electronic Co., Ltd.
- Current Assignee Address: TW Taipei
- Agency: Bacon & Thomas, PLLC
- Priority: TW99128063A 20100823
- Main IPC: H02M3/335
- IPC: H02M3/335
Abstract:
The present invention is to provide a series resonant converter, which includes a transformer, two power switches connected to primary side of the transformer, a resonant control chip having two control pins connected to gates of the two power switches respectively, a resonant capacitor having one end connected to one end of the primary side and the other end connected to source of one power switch, a resonant inductor having one end connected to the other end of the primary side and the other end connected to a line between the two power switches, and at least one bypass resistor connected in parallel to the resonant capacitor, so as to allow voltage of the resonant capacitor to be rapidly released to ground when the converter is turned off and effectively lower inrush current of the resonant capacitor generated at an instant when the converter is turned on from off.
Public/Granted literature
- US20120044721A1 Series resonant converter using power switches with relatively low rated voltages and currents Public/Granted day:2012-02-23
Information query
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