PWM to vary the light intensity of a 220V bulb

Posted on Feb 4, 2014

220V bulb where one end of the relay is connected to the 220V dc and the other end to ground; and is switched one to the other using the output of a PWM as shown in the block diagram below: However, I am afraid that this is a poor design and not safe: no transformer to lower down the ac voltage (so I can drive the 220V bulb);

PWM to vary the light intensity of a 220V bulb
Click here to download the full size of the above Circuit.

and in effect, other components might blow up.

Leave Comment

characters left:

New Circuits



Popular Circuits

Shunt Regulator for Solar Cells
Lamp Timer
Electronic Door Buzzer
Ac Watts Calculator Circuit
Arduino V-USB / HID 14 channel data logger
laptop protector schematics
step down switching converter
Pre MIC (microphone preamplifier) 2 CH by IC NE5532 or LF353
Moduler Preamplifier Circuit
OTL tube amp amplifier production
Use SR9F26C ordinary language learning machine tape recorder and circuit diagram
Open water notification Circuit Design