发明名称 |
SWITCHING CONTROL CIRCUIT |
摘要 |
A switching control circuit includes an N-channel MOSFET having an input electrode applied with an input voltage and an output electrode connected to one end of an inductor and one end of a rectifying element. The other end of the inductor is connected to a first capacitor. A bootstrap circuit is configured to generate a bootstrap voltage on a second capacitor having one end connected to the output electrode of the N-channel MOSFET. The bootstrap voltage is required when the N-channel MOSFET is turned on. A driving circuit is configured to be applied with a driving voltage corresponding to the bootstrap voltage and turn on/off the N-channel MOSFET to generate an output voltage of a target level on the first capacitor. A clamping circuit is configured to clamp the driving voltage to be at a predetermined level or lower.
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申请公布号 |
US2010156372(A1) |
申请公布日期 |
2010.06.24 |
申请号 |
US20090639769 |
申请日期 |
2009.12.16 |
申请人 |
SANYO ELECTRIC CO., LTD.;SANYO SEMICONDUCTOR CO., LTD. |
发明人 |
KOBAYASHI YOSUKE;FUKUSHI IWAO |
分类号 |
G05F1/10 |
主分类号 |
G05F1/10 |
代理机构 |
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代理人 |
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地址 |
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