Draw the equivalent circuit model and switching characteristics of the device which is used for low on state loss and high switching frequency operation.
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- (i) With neat sketch explain the cross sectional view and I-V characteristics of the device which is used in low on state loss and small switching frequency operations. (ii) Write FOUR demerits of the above mentioned power semiconductor device.During the turn-on and turn-off of a power transistor,the current-time and voltage-time relationshipsare as shown in the adjacent figure. Observe thewaveforms and calculate,1. The OFF-state power dissipation (static);2. The switch ON-state power dissipation(static);3. The average switching loss for the OFFtransition (dynamic);4. The average switching loss for the ONtransition (dynamic);Assume a switching frequency of 1kHz with Vx = 422V. Draw the equivalent circuit model and switching characteristics of the device which is used for low onstate loss and high switching frequency operation.
- Explain the concept of power semiconductor devices such as Insulated Gate Bipolar Transistors (IGBTs) and Thyristors. How do these devices enable efficient power control and switching in high-power applications?One characteristic of the emitter follower is ______. A. low resistance output B. low current amplification C. high voltage amplificationP-channel MOSFET is basically a following device. a.voltage operated b.power operated c.low-frequency operated d.current operated
- Graphs of the switching characteristics of the power transistor are given in the figure. Collector-emitter leakage current I ceo = 2.8mA. Find the power consumption depending on the collector current accordingly. a) Transmission time b) During transmissionfor signal and system lessonDuring turn on and turn off of a power transistor, the current-time and voltage -time relationships are as shown in the adjacent figure. Calculate 40) the show 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 423
- 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, 47) the average switching loss for the ON transition (dynamic); Assume a switching frequency of 1kHz with Vx =339Vwhat are modes of the, power MOSFET?During turn-on and turn-off of a power transistor, thecurrent-time and voltage-time relationships are asshown in the adjacent figure. Observe the waveformsand calculate,40) the OFF-state power dissipation (static);41) the switch ON-state power dissipation(static);42) the average switching loss for the OFFtransition (dynamic);43) the average switching loss for the ONtransition (dynamic);Assume a switching frequency of 2kHz with 397V as specified in Appendix A.