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Author Topic: High Efficiency Power Amplifier Based on Envelope Elimination and Restoration  (Read 2341 times)

Offline ChrisSmolinski

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High Efficiency Power Amplifier Based on Envelope Elimination and Restoration
« on: January 25, 2014, 0115 UTC »
Not sure if anyone has seen this before:

High Efficiency Power Amplifier Based on Envelope Elimination and Restoration Technique
http://oa.upm.es/7900/2/INVE_MEM_2010_79469.pdf

Based on Kahn's envelope elimination and restoration.
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Chris Smolinski
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Re: High Efficiency Power Amplifier Based on Envelope Elimination and Restoration
« Reply #1 on: January 25, 2014, 0319 UTC »
We farted around with that in the 80's. May be efficient, but sure not cheaper! Best for retrofitting existing broadcast TX.

Peace!
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Offline redhat

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Re: High Efficiency Power Amplifier Based on Envelope Elimination and Restoration
« Reply #2 on: January 26, 2014, 2353 UTC »
The Kahn method is how high power shortwave transmitters generate SSB with good efficiency.  I imagine this paper was targeting cell phone PA's to extend battery life.

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