Electronics 245 - Week 4 - Lecture 9 - 2.1.3 to 2.1.5- Rectifier circuits, filters, detectors and voltage doublers

Define half-wave rectification

Draw a graph

• A circuit will have a diode and output voltage is only in one direction

• Voltage in then opposite direction is zero

Describe how to obtain full-wave rectification from a half-wave rectifier:

• Draw the graph of output voltage

Define ripple voltage

• The voltage that remains after rectification

Derive the formula for Ripple voltage

Solve

Solve

For a half and full wave rectifier:

• Derive the equations for peak current passing through the diode

• Derive the equations for average current passing through the diode

Describe the detector circuit:

• Define it

• Draw the circuit

Describe the Voltage Doubler:

• What it is

• Its uses

• Conditions

• Draw the circuit