Sunday, 30 September 2012

DISADVANTAGES OF HALF-WAVE RECTIFIER

Half-wave rectifier is seldom used in practice because
1) The rectification efficiency is low
2) The D.C output is small
3) Secondary transformer carries the rectified current, thus producing direct magnetisation of the transformer core.
4) Because of short heavy pulses of current, the heating of transformer winding is large compared to the current delivered.