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Making A Transformerless Power Supply


Upon surfing the net, I have found this site: displaying their projects on making a Transformerless Power Supply with a 12 volts output voltage and a current of 100mA. We usually see this kind of power supply on a China made model of rechargeable products like flashlights and mosquito killer. This circuit catches my attention because of its application in our work which needs a power supply and we can also use this power low current circuits like some of our projects that don’t needs too much power requirements.


Transformerless power supply



Schematic Diagram of Transformerless Power Supply

[ Photo credits to: ]

Note: “Be careful, this circuit is not isolated from 220 volts AC. It needs some extra care in handling this kind of supply. Dangerous High Voltage AC.”

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