written 4.9 years ago by
teamques10
★ 64k
|
modified 24 months ago
by
binitamayekar
★ 6.4k
|
written 24 months ago by
sagarkolekar
★ 11k
|
Class A Power amplifier.
1. Circuit diagram.
2. Position of Q-point : At the center of dc 1 outline.
3. Operating cycle: Circuit operates for entire 360˚ of input signal.
4. Power efficiency: Maximum efficiency (for series fed ) = 25%
Maximum efficiency for transformer coupled = 50%
Class C Power Amplifier.
1. Circuit diagram.
2. Position of Q-point : Below the cut off region of operation.
3. Operating cycle : Circuit operates for less than 180˚ of input signal.
4. Power efficiency : Around 95% for class C power amplifier.
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