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Electronics and Communication Engineering - Power Electronics

Exercise : Power Electronics - Section 5
21.
The total number of leads in SUS, SBS and SCS respectively are
3, 3, 4,
3, 3, 3
2, 3, 3
3, 3, 5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Which of these devices can conduct in both directions?
SCR
SUS
SBS
UJT
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.

Assertion (A): A half wave controlled rectifier has poorer efficiency and higher ripple factor than a full wave controlled rectifier.

Reason (R): The use of a freewheeling diode in half wave controlled rectifier circuit improves the waveform of load current and circuit power factor.

Both A and R are correct and R is correct explanation of A
Both A and R correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
A 3 phase dual converter consists of
two 3 phase semiconverters connected in parallel
two 3 phase semiconverters connected in antiparallel
two 3 phase full converters connected in antiparallel
two 3 phase full converters connected in parallel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Which inverter circuit uses coupled inductors?
Modified McMurray full bridge inverter
McMurray Bedford half bridge inverter
Modified McMurray Bedford half bridge inverter
Both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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