Hawksford error corrector for bridged amplifiers

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Joined 2015
When you bridge an amp normally you feedback each branch individually and it gives what it gives. This type of error corrector acquires differential output and provides correction on one side only. To show how effective it adjusts, I take a VAS stage of gain +/- 5 on each branch to drive a nonbiased low quality pair complimentary transistors. One side receives directly the input where the inverting side receives corrected signal.
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With 10v output I get a distortion of 0.04% with 10khz and perfectly stable.
The result is superior with AD8008.

Hayk
 

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  • REACTOR DIFF.JPG
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