AC input PWM Output

159

01:34:28

AC input 12 volt !!!WOW see the amplitude at 5 volt

published 1 year ago

STLOGIC

1 year ago

Now imagine instead of a 20k pot to create an LDR & LED (AAC) device both in a dark tube, LDR pins with 10K resistor parallel with LDR are going to circuit.Feed LED constant 12 Volt through VD 50K & 20K(Grand)setup 17k to give 2.9 LED volt and modulate resistivity through brightness with feed back reference voltage with a transistor isn't simple?.

STLOGIC

1 year ago

The circuit is updated I just drop to 2.7V from 7.2V on + pin of OP AMP increase the capacitance from 800pf to 1 nf and the resistance from 330 to 400 Ω.

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