Rectification graphs
- Rectification is defined as:
The process of converting alternating current and voltage into direct current and voltage
- Rectification is used in electronic equipment which requires a direct current
- For example, mains voltage must be rectified from the alternating voltage produced at power stations
Types of rectification
- There are two types of rectification:
- Half-wave rectification
- Full-wave rectification
- For half-wave rectification:
- The graph of the output voltage Vout against time is a sine curve with the positive cycles and a flat line (Vout = 0) on the negative cycle
- This is because the diode only conducts in the positive direction
- For full-wave rectification:
- The graph of the output voltage Vout against time is a sine curve where the positive cycles and the negative cycles are both curved ‘bumps’
Half and full wave rectification
The difference between the graphs of full-wave and half-wave rectification