发明授权
- 专利标题： Synchronous driver circuit and integrated circuit for use therein
- 专利标题（中）： 同步驱动电路及集成电路
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申请号： US12658560申请日： 2010-02-05
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公开(公告)号： US08217632B2公开(公告)日： 2012-07-10
- 发明人: Jing-Meng Liu , Chia-Wei Liao , Heng Yun
- 申请人： Jing-Meng Liu , Chia-Wei Liao , Heng Yun
- 申请人地址： TW Hsin-Chu
- 专利权人： Richtek Technology Corporation
- 当前专利权人： Richtek Technology Corporation
- 当前专利权人地址： TW Hsin-Chu
- 代理机构： Tung & Associates
- 优先权： TW98123819A 20090714
- 主分类号： G05F1/613
- IPC分类号： G05F1/613 ; G05F1/44
摘要：
The present invention discloses a synchronous driver circuit, comprising: an inductor having one end coupled to an input voltage; a first power transistor having one end coupled to the other end of the inductor and another end supplying an output voltage; a second power transistor having one end coupled to the other end of the inductor and another end coupled to ground; a control circuit for controlling the operation of the first and second power transistors; a gate driver coupled to the control circuit and having an output controlling the gate of the first power transistor; and a bootstrap capacitor having one end coupled to a voltage node and the other end coupled to the other end of the inductor, the voltage across the bootstrap capacitor being provided as the operational voltage of the gate driver.
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