PhysicsCode 9702

Rectification and smoothing

What this topic asks you to be able to do

  • distinguish half-wave rectification from full-wave rectification by means of graphs
  • explain how a single diode is employed to half-wave rectify an alternating current
  • explain how four diodes arranged as a bridge rectifier are used to full-wave rectify an alternating current
  • analyse what a single capacitor does when used for smoothing, including how the values of capacitance and load resistance change its effect