Electronics and Communication Engineering - Power Electronics
Exercise :: Power Electronics - Section 6
36.
The total number of leads in MOS controlled thyristor is
Answer: Option B
Explanation:
37.
Assertion (A): Chopper always requires forced commutation
Reason (R): Morgan chopper uses a saturable reactor.
A. Both A and R are correct and R is correct explanation of A B. Both A and R correct but R is not correct explanation of A C. A is correct but R is wrong D. A is wrong but R is correct
Answer: Option B
Explanation:
38.
In a power diode the reverse recovery time is the time from the instant the forward current is zero to the instant when reverse recovery current has decayed to
A. 50% of peak reverse current B. 25% of peak reverse current C. 10% of peak reverse current D. zero value
Answer: Option A
Explanation:
39.
Assertion (A): McMurray Bredford half bridge inverter uses complementary commutation
Reason (R): Three phase inverter can have two modes of operation.
A. Both A and R are correct and R is correct explanation of A B. Both A and R correct but R is not correct explanation of A C. A is correct but R is wrong D. A is wrong but R is correct
Answer: Option B
Explanation:
40.
A capacitor C farads is charged to a voltage V. It discharges through a thyristor, a diode and an inductance L. The peak current in the circuit is
Answer: Option B
Explanation:
