A. B.JTs
B. MOSFETs
C. IGBTs
D. All of above
Related Mcqs:
- Compared to transistor, _________ have lower on state conduction losses and higher power handling capability?
A. TRIACs
B. Semi conductor diodes
C. MOSFETs
D. Thyristor - Which of following is not a power transistor?
A. IGBTs
B. COOLMOS
C. TRIAC
D. SITS - COOLMOS device can be used in application up to power range of___________?
A. 1 KVA
B. 2 KVA
C. 500 VA
D. 100 KVA - Which semiconductor device acts like a diode and two transistor?
A. UJT
B. Diac
C. Triac
D. SCR - Power electronics essentially deals with control of a.c. power at____________?
A. Frequencies above 20 kHz
B. Frequencies above 1000 kHz
C. Frequencies less than 10 Hz
D. 50 Hz frequency - For series connected SCR’s dynamic equalising circuit consists of___________?
A. R and C in series but with diode across C
B. R and C in series but with diode across R
C. Series R and diode with C across R
D. Series R and diode with C across R - The ac output voltage waveform of VSI and AC output current waveform of CSI respectively is composed of___________?
A. High dv / dt, low di / dt
B. Low dv / dt, low di / dt
C. Low dv / dt, high di / dt
D. High dv / dt, high di / dt - For power output higher than 15 kW, the suitable rectifier is________________?
A. Single phase
B. 3 phase
C. Poly phase
D. Only (b) and (c) - Due to non sinusoidal waveform of the input current, the power factor of the rectifier is____________?
A. Negatively affected by firing angle
B. Negatively affected by distortion of the input current
C. Positively affected by both firing angle and distortion of the input current
D. Both (a) and (b) - In a lossless inverter, the average power absorbed in one period by the load must be__________?
A. Equal to the average power supplied by the dc source
B. Greater than the average power supplied by the dc source
C. Lesser than the average power supplied by the dc source
D. Equal to the average power supplied by the ac source
