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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A: IC and VCB for the given circuit is calculated as shown below
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- 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(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.One characteristic of the emitter follower is ______. A. low resistance output B. low current amplification C. high voltage amplification
- 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?P-channel MOSFET is basically a following device. a.voltage operated b.power operated c.low-frequency operated d.current operatedGraphs 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 transmission
- for signal and system lessonwhat are modes of the, power MOSFET?During 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 =339VDuring 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.Q2 EMI is a very important aspect to be considered while designing a switching power supply. Discuss with examples what considerations at the circuit level and PCB level design to avoid failing EMC test. Shed some light also on the EMC test. а. What is EMI and EMC and how to conduct the test What considerations to be taken into account while designing a PCB for a switching power supply with examples b.