During turn-on and turn-off of a power transistor, the current-time and voltage-time relationships are as shown in the adjacent figure. Observe the waveforms and calculate, 40) the OFF-state power dissipation (static); 41) the switch ON-state power dissipation (static); 42) the average switching loss for the OFF transition (dynamic); 43) the average switching loss for the ON transition (dynamic); Assume a switching frequency of 2kHz with 397V as specified in Appendix A.

During turn-on and turn-off of a power transistor, the current-time and voltage-time relationships are as shown in the adjacent figure. Observe the waveforms and calculate, 40) the OFF-state power dissipation (static); 41) the switch ON-state power dissipation (static); 42) the average switching loss for the OFF transition (dynamic); 43) the average switching loss for the ON transition (dynamic); Assume a switching frequency of 2kHz with 397V as specified in Appendix A.

Delmar's Standard Textbook Of Electricity

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ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter30: Dc Motors

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Question

During turn-on and turn-off of a power transistor, the
current-time and voltage-time relationships are as
shown in the adjacent figure. Observe the waveforms
and calculate,
40) the OFF-state power dissipation (static);
41) the switch ON-state power dissipation
(static);
42) the average switching loss for the OFF
transition (dynamic);
43) the average switching loss for the ON
transition (dynamic);
Assume a switching frequency of 2kHz with 397V as specified in Appendix A.

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