I am driving an audio amplifier with a 3.7V lipo.
With a latching circuit in front.
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The problem is, that when I turn up the volume, the voltage drops under 3.7 volts (especially on bass) and the amplifier turns off for a couple of milliseconds.
The amplifier accepts 3.7 - 5 volt.
What is the simplest way to keep it above 3.7 volt? (I think that is the problem.)
I think it needs some sort of voltage regulator.
When I plug in the lipo direct into the amplifier(without the latching circuit) I can turn up the volume to max. But only as long the lipo is nearly fully charged.
Isn´t it possible to somehow put a large capacitor in, to buffer the short voltage drops a bit ?