1. Single-Phase Uncontrolled Rectifiers Chp#5

2. Introduction Rectification is a process that converts AC into DC.
In diode based rectifiers, output voltage cannot be controlled. So they are termed as uncontrolled rectifiers.
Rectifier may be n-pulse type.
Number of pulses in any rectifier configuration is given by:
Pulse number=number of load current (or voltage) pulses during one cycle of ac source voltage.
Diodes are assumed to be ideal.

3. 5.2 Half-Wave Rectifier (One-Pulse Rectifier)
(a) With resistive load

4. (B) With an Inductive (RL) Load

5. (C) With RL Load and Freewheeling Diode

6. 5.3 FULL-WAVE CENTER-TAPPED TRANSFORMER RECTIFIER
(Two-Pulse Rectifier)

7. Circuit Symbol
During positive half-cycle
Durinig negative half cycle

8. Voltage and Current waveforms

9. With Inductive (RL) Load

10. Input Supply Voltage
Output Voltage
Current through D1
Current through D2
Output current
Voltage across D1
Voltage across D2

11. Current waveforms for highly inductive Load

12. 5.4 Full-Wave Bridge Rectifier

13. With a Resistive Load

15. With an Inductive Load