- 专利标题: Voltage controlled switching element gate drive circuit
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申请号: US14489861申请日: 2014-09-18
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公开(公告)号: US08952731B2公开(公告)日: 2015-02-10
- 发明人: Satoshi Sugahara
- 申请人: Fuji Electric Co., Ltd.
- 申请人地址: JP Kawasaki-Shi
- 专利权人: Fuji Electric Co., Ltd.
- 当前专利权人: Fuji Electric Co., Ltd.
- 当前专利权人地址: JP Kawasaki-Shi
- 代理机构: Rabin & Berdo, P.C.
- 优先权: JP2011-116924 20110525
- 主分类号: H03K3/00
- IPC分类号: H03K3/00 ; H03K17/16 ; H03K17/687
摘要:
A voltage controlled switching element gate drive circuit makes it possible to suppress an occurrence of a malfunction, while suppressing surge voltage, surge current, and switching noise, when switching in a voltage controlled switching element. A gate drive circuit that supplies a gate voltage to the gate of a voltage controlled switching element, thus driving the voltage controlled switching element, includes a high potential side switching element and low potential side switching element connected in series, first variable resistors interposed between at least the high potential side switching element and a high potential power supply or the low potential side switching element and a low potential power supply, and a control circuit that adjusts the resistance values of the first variable resistors.
公开/授权文献
- US08994414B2 Voltage controlled switching element gate drive circuit 公开/授权日:2015-03-31
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