Electronically Controlled Voltage Regulator

its basically a PWM based voltage regulator.

for smooth regulting of high voltage devices(220v).

WORKING:-

if Duty cycle of pulse is 20 and the frequency is 50hz the voltage will be minimum and if we change it to 80% its voltage will be high and on 95% the voltage will be maximum.

Step 1: PCB of ECVR(electronically Controlled Voltage Regulator)

here is the simulated design of ECVR(electronically controlled voltage regulator) and its result.

and the PCB of ECVR.

Step 2: