IGBT (Insulated Gate Bipolar Transistor) closed loop active driving circuit and driving method thereof
An active drive and circuit technology, applied in the field of power electronics, can solve problems such as overvoltage damage to devices, achieve the effects of small signal delay, avoid excessive power, and speed up switching speed
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[0051] In order to express the present invention more clearly, the present invention will be further described below in conjunction with the accompanying drawings.
[0052] The IGBT closed-loop active drive circuit of the present invention includes a forward turn-on module and a reverse turn-off module, and both the forward turn-on module and the reverse turn-off module include a level shift circuit, a first logic control circuit, and a closed-loop feedback path. The second logic control circuit, the first current drive circuit, the second current drive circuit, the first comparator circuit, the second comparator circuit, the first delay circuit and the second delay circuit; the level shift circuit is respectively connected with the first The logic control circuit is electrically connected to the input end of the second logic control circuit, the first comparator circuit is electrically connected to the input end of the second logic control circuit through the first delay circu...
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