Physics · Power Electronics
When is the freewheeling diode (FWD) reverse biased in a single-phase semiconverter?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1When the firing angle is above 90°
- 2While the SCRs are off
- 3During negative supply voltage only
- 4While the SCRs are conducting✓
Correct answer
While the SCRs are conducting
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