November December 2016 issue has a Class A amplifier predicated upon 4 LM317's with +/- 15V rails. When I simulate it using TINA (8R load) it seems to distort at less than 5W out instead of the 12-14W claimed in the article. There being no supporting data....
100k/100p Rf/Cc was changed to 100k/10p for the a.c. analysis as the turnover was too low:
100k/100p Rf/Cc was changed to 100k/10p for the a.c. analysis as the turnover was too low:
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Elvee has posted a number of LM317 amplifier circuits in the past. Here is one of them 🙂 http://www.diyaudio.com/forums/chip-amps/192934-se-class-regulator-chip-amp-madness.html#post2648702
Tony.
Tony.
jackinnj, is your LM317 model ok? Take a look at the link I posted of Elvee's amp. edit: Most LM317 models can only provide 500mA current....
Tony.
Tony.
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MIC29503 is an LDO regulator. I understand they won't work or there may need to be some changes for them to work as a linear amplifier.
This is the kind of "away from the datasheet" use of a chip that is going to be very make dependent
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