发明名称 |
GATE DRIVING CIRCUIT |
摘要 |
To obtain a gate driving circuit in which rising of a constant current of a constant current circuit is fast and power saving is achieved, the gate driving circuit includes: a constant current driving circuit (28) for supplying a constant current; a gate terminal of a power semiconductor element (1), which is connected to an output terminal of the constant current driving circuit; a comparator (22) for comparing a voltage at the gate terminal with a predetermined voltage value and outputting a signal indicating that the voltage is higher than the predetermined voltage value; and a driving control section (20) for increasing a current from the constant current driving circuit (28) in response to a signal for turning on the power semiconductor element (1), and reducing the current from the constant current driving circuit (28) in response to the signal from the comparator (22). |
申请公布号 |
EP2207257(A4) |
申请公布日期 |
2014.01.01 |
申请号 |
EP20080834859 |
申请日期 |
2008.09.03 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
NAKATAKE, HIROSHI;FUKU, MASARU;OKUDA, TATSUYA;TSUNODA, YOSHIKAZU |
分类号 |
H02M1/08;G05F3/26;H03K17/04;H03K17/0412;H03K17/16 |
主分类号 |
H02M1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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