Position: Index > Power Supply Circuit >

Transformerless power supply circuit

2016-04-20 07:54  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.
Transformerless power supply Description.

Here is a low cost and simple circuit that can be used to power up small electronics devices. The power is directly tapped from the mains via resistor R1.D1 rectifies the voltage and C1 and C2 are used to filter the output.The zener diode D2 keeps the voltage at steady 5V.

Transformerless Power Supply Circuit Diagram with Parts List. Transformerless Power Supply Circuit

Transformerless Power Supply Circuit Diagram

 

Notes. This circuit can deliver only up to 2omA ,there fore not suitable for serious circuits. You can use this power supply for small LED circuits etc . Remember you are playing with mains.Always be careful

We have more Power Supply Circuits that you may like to take a look:

1. 9 Volt Regulator

2. High and Low Voltage Cut Off Circuit

3. Mains Failure Alarm Circuit

4. Voltage Booster Circuit

5. Regulated Power Expander