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TransformerLess Power Supply 12V 100mA

Transformerless Power Supply | EngineersGarage
The diagram shown below is a simple transformer less power supply. Here 225 K(2) 400 volts X rated capacitor is used to drop 230 volt AC. Resistor R2 is the bleeder resistor that remove the stored current from the capacitor when the circuit is unplugged. Without R2, there is chance for fatal shock if the circuit is touched.
4 Simple Transformerless Power Supply Circuits Explained
Jul 09, 2019Please I am having this issues with transformerless power supply; “Each time I intend to use transformerless power supply to power microcontroller 8051, atmega328P and even a DC FAN of 12V, 1, I notice that they never get powered even though the power supply has been tested to produce the required 12v or 5v dc as the case may be.
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