发明申请
- 专利标题: Boost driver circuit with fast discharging function
- 专利标题(中): 升压驱动电路具有快速放电功能
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申请号: US12384154申请日: 2009-04-01
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公开(公告)号: US20100072915A1公开(公告)日: 2010-03-25
- 发明人: Kwan-Jen Chu , Nien-Hui Kung , Tzu-Huan Chiu , Chien-Ping Lu
- 申请人: Kwan-Jen Chu , Nien-Hui Kung , Tzu-Huan Chiu , Chien-Ping Lu
- 专利权人: Richtek Technology Corporation
- 当前专利权人: Richtek Technology Corporation
- 优先权: TW097136751 20080924
- 主分类号: H05B39/04
- IPC分类号: H05B39/04 ; G05F1/00
摘要:
The present invention discloses a boost driver circuit which converts an input voltage to an output voltage and supplies it to a load, the boost driver circuit comprising: a power transistor electrically connected with a node between the input voltage and the output voltage; a pulse width modulation driver circuit for controlling the operation of the power transistor; an output node electrically connected with the output voltage; a feedback node electrically connected with the load; a low voltage transistor electrically connected with the feedback node; and a clamp and fast discharge circuit electrically connected with the feedback node for discharging the feedback node when the voltage at the feedback node is higher than a predetermined voltage.
公开/授权文献
- US07994728B2 Boost driver circuit with fast discharging function 公开/授权日:2011-08-09