PHASE CONTROLLED RECTIFIES

1. Unit 4:
PHASE CONTROLLED
RECTIFIES
Presented By :
Ashish Sadavarti

2. Concept of phase control.
(Firing Angle α and conduction angle Ø)
When SCR(T) OFF then,(Vi=Vt)(Vo=0V)
Input voltage(Vi) = voltage across SCR(Vt)
When SCR(T) ON then, ,(Vi=0V)(Vo=Vt)
Input voltage(Vi) = voltage across load(VL) =
O/P voltage(Vo)

3. Single phase half wave controlled
rectifier with R Load

7. Single phase half wave controlled
rectifier with RL Load

11. Single phase half wave controlled
rectifier with Effect of freewheeling diode

15. Single phase center tapped full wave
controlled rectifier with R Load

19. Single phase center tapped full wave
controlled rectifier with RL Load

23. 1 Ø center tapped full wave
controlled rectifier
with Effect of freewheeling diode

27. Single phase Bridge type full wave
controlled rectifier with R Load

31. Single phase Bridge type full wave
controlled rectifier with RL Load

35. Single phase Bridge type full wave
controlled rectifier
With Effect of freewheeling diode

39. Three phase Half wave Delta – Wye
Rectifier

42. Six phase star half wave Rectifier

43. WAVEFORM OF
Six phase star half wave Rectifier

45. Three phase Delta – Wye Bridge
Rectifier

50. Thank You