The Gate Driving Circuit Composed of TLP559

Published:2011/7/18 5:31:00 Author:nelly | Keyword: Gate Drive Circuit | From:SeekIC

The picture is the gate driving circuit which applies the TLP559. The TLP559 output circuit is the open collector type, and VT1 does level reverse, thus the output impedance can be reduced in the complementary push-pull circuit. In order to shorten the time of open and off, the capacitor C1 which is parallel with R fastens the capacity. The value of C1 becomes large, and the admittance time becomes short, but the time of open and off becomes longer. Here，C1 selects the 4700pF. The time of open and off will be short even not connected with C1.



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