发明申请
- 专利标题: Bootstrap circuit for switching power supplies
- 专利标题(中): 用于开关电源的自举电路
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申请号: US10523244申请日: 2002-07-19
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公开(公告)号: US20060152951A1公开(公告)日: 2006-07-13
- 发明人: Mauro Fagnani , Albino Pidutti , Claudio Adragna
- 申请人: Mauro Fagnani , Albino Pidutti , Claudio Adragna
- 国际申请: PCT/IT02/00478 WO 20020719
- 主分类号: H02M1/00
- IPC分类号: H02M1/00
摘要:
A bootstrap circuit for switching power supplies (SMPS), a switching power supply including a bootstrap circuit, and an integrated circuit of a switching power supply, are provided. The bootstrap circuit (13) for switching power supplies includes a first supply voltage (Vin) coming from a first terminal and a second supply voltage (Vcc) coming from a second terminal and a third terminal (30). The bootstrap circuit includes: a first current path between the first terminal and the third terminal (30); a second current path between the first terminal and the second terminal; a third current path between the second terminal and the third terminal (30); and a two-way voltage regulator (M3, Dz2, R5, R6) placed along the second current path.
公开/授权文献
- US07319601B2 Starting circuit for switching power supplies 公开/授权日:2008-01-15