Physics · Power Electronics
A separately excited DC motor is fed through a 1-phase half-wave controlled converter circuit. The converter circuit operates with a firing angle of α and the peak value of the AC supply voltage is Vm. Assuming continuous conduction, the average armature terminal voltage Vt for the DC motor will be:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Vt = Vmπ(1 - cos(α))
- 2Vt = Vmπcos(α)
- 3Vt = Vm2π(1 + cos(α))✓
- 4Vt = 2Vmπcos(α)
Correct answer
Vt = Vm2π(1 + cos(α))
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