Author Topic: LM386 softer clipping  (Read 1467 times)

Vivek

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Re: LM386 softer clipping
« Reply #40 on: September 28, 2021, 03:49:09 AM »
Rob Strand had posted a clipper/ limiter system with diodes referenced to power supply.



This can be used to soften the output of a rail saturated LM386 (Or any other Rail saturated Opamp circuit), by adding one more knee close to each rail. For LM386, I suppose we will have to use inverting pin, Opamp style feedback as I had posted earlier.

I feel this might be an excellent idea for this purpose.


Steben

Re: LM386 softer clipping
« Reply #41 on: September 28, 2021, 04:07:33 AM »
Rob Strand had posted a clipper/ limiter system with diodes referenced to power supply.



This can be used to soften the output of a rail saturated LM386 (Or any other Rail saturated Opamp circuit), by adding one more knee close to each rail. For LM386, I suppose we will have to use inverting pin, Opamp style feedback as I had posted earlier.

I feel this might be an excellent idea for this purpose.

Yes. And follows power sag.
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Vivek

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Re: LM386 softer clipping
« Reply #42 on: September 28, 2021, 04:16:59 AM »
YES !!!!

Follows power sag !!!

I remember your idea to put a resistor in series with power supply going to Opamp, to get power sag in the traditional way

+ your comment that LM386 has variable current draw (especially if the load impedance is low)