This is a 220V AC voltage regulator circuit, I use it to adjust the fan speed. i use 555 ic to generate PWM, Use triac BTA12 (12A 600V) and photocoupler MOC3020 to adjust AC voltage. Be careful, I do not use transformers in this circuit, touching any component will cause electric shock.
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#Inverter
#12Vto220V
#Dimmer
220V to 110V without transformer | Adjust AC voltage
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