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本帖最后由 超級狗 于 2013-8-16 09:39 编辑 # c# Z- P: e+ ?+ m) u' i! e( Q
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As an added safety margin a resistor diode network can be added to the gate, as shown with dashed lines in Figure 29. The purpose of this network is to further delay the turn-on, without affecting the turn-off, thereby inserting some additional dead-time. The resistor-diode network is also useful in reducing the peak of the current spike during the reverse recovery time. This has an impact on power losses, as well as dv/dt and EMI.3 C# B5 v7 {7 f( T4 b7 E O! m" M% N4 w
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