[Amps] Class E amd and MRF492

ToddRoberts2001@aol.com ToddRoberts2001 at aol.com
Tue Mar 8 15:02:58 EST 2005


In a message dated 3/8/2005 12:48:58 PM Eastern Standard Time, G3rzp at aol.com 
writes:
How do you make them linear? Can you maintain the efficiency if you use  
polar or cartesian loop linearising?

73

Peter G3RZP

I don't think it is possible to make a Class E amplifier linear in the way 
that a Class AB amplifier is linear. One practical way to use a Class E 
amplifier to amplify SSB is to configure it as an EER - Envelope Elimination and 
Restoration amplifier. Dr. Fred Raab has done much good research and written 
several papers on the EER technique. 73 Todd WD4NGG


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