Typical efficiency of a push pull amp in class AB is 65 to 70%
For class D it is 80-85%, for a class E amp 90-95%.
In theory class E has no losses ... if you could find the perfect switch (no turn-on / turn-off time, no resistance) and coils.
73, Rik ON7YD - OR7T
A BIT LESS!!!!! at least 50% less than a class D or E, which should yield 90% with a proper design.
G3KEV
----- Original Message -----
Sent: Monday, October 19, 2009 4:18 PM
Subject: LF: Thanks Brian
OK Brian, thanks for the info. Yes, I realise the efficiency will be a bit less. Seems different people have had quite different experiences using AF techniques/ready made amps etc.
Thanks, 73,
Chris, G4AYT.
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