engineering recuitment UPCL AE (E&M) 2021 Mock Test Power Electronics and Drives Choppers Types of Choppers
Input to a step up chopper is 250 V. The output required is 450 V. If the conducting time of thyristor is 200 μsec, the chopping frequency is
1
1.11 kHz
2
2.22 kHz
3
3.33 kHz
4
4.44 kHz