Invention Grant
- Patent Title: Method of feedback commanding a monophase resonant converter, a related monophase resonant converter and a polyphase resonant converter
- Patent Title (中): 单相谐振转换器的反馈方法,相关单相谐振转换器和多相谐振转换器
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Application No.: US14612124Application Date: 2015-02-02
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Publication No.: US09379628B2Publication Date: 2016-06-28
- Inventor: Osvaldo Enrico Zambetti , Stefano Saggini
- Applicant: STMICROELECTRONICS S.R.L.
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Agency: Seed IP Law Group PLLC
- Priority: ITMI2014A0150 20140203
- Main IPC: H02M3/335
- IPC: H02M3/335 ; H02M3/337 ; H02M1/00 ; H02M3/158

Abstract:
A resonant converter includes a primary switching circuit having a primary winding and a primary switching stage configured to drive the primary winding; a secondary resonant circuit having a secondary winding magnetically coupled to the primary winding, a resonance capacitor connected in parallel to the secondary winding, and first and second secondary inductors respectively coupled between an output terminal of the converter and respective terminals of the resonance capacitor; a rectification stage connected in parallel with the resonance capacitor, and having first and second switches coupled to form a half-bridge; and a feedback command circuit. The command circuit is configured to receive feedback signals representing an output voltage and an output current at the output terminal of the resonant converter, receive voltages at the terminals of the resonance capacitor, and turn on/off, independently with respect to each other, the switches of the rectification stage and the primary switching stage.
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