A. UJT
B. Diac
C. Triac
D. SCR
Related Mcqs:
- The reverse recovery time of diode is trr = 3 μs and the rate off all of the diode current is di/dt = 30 A/μs. The storage charge current QRR is___________?
A. 130 μs
B. 135 μs
C. 140 μs
D. 145 μs - A modern power semiconductor device that combines the characteristic of BJT and MOSFET is_____________?
A. IGBT
B. FCT
C. MCT
D. GTO - Bidirectional semiconductor device is___________?
A. Diode
B. BJT
C. SCR
D. TRIAC - TRIAC is a semiconductor power electronic device which contains____________?
A. Two SCR’s connected in reverse parallel
B. Two SCR’s connected in parallel
C. Two SCR’s connected in series
D. Two BJT’s connected in series - A power semiconductor may undergo damage due to____________?
A. High di/dt
B. High dv/dt
C. Low di/dt
D. Low dv/dt - The switching function of semiconductor devices can be characterized with___________?
A. Duty ratio only
B. Frequency only
C. Duty ratio and frequency
D. Duty ratio, frequency and time delay - The switching function of semiconductor devices can be characterized with____________?
A. Duty ratio only
B. Frequency only
C. Duty ratio and frequency
D. Duty ratio, frequency and time delay - For a buck converter to reduce the conduction losses in diode
A. A high on – resistance switch can be added in parallel
B. A low on – resistance switch can be added in parallel
C. A high on – resistance switch can be added in series
D. A low on – resistance switch can be added in series - The advantage of using free – wheeling diode in half controlled bridge converter is that
A. There is always a path for the dc current independent of the ac line
B. There is always a path for the ac current independent of the ac line
C. There is always a path for the dc current dependent of the ac line
D. There is always a path for the ac current independent of the ac line - An ideal diode is___________?
A. Unidirectional
B. Bidirectional
C. Fixed voltage polarity
D. Only (a) and (c)
