5v Transformerless Power Supply Circuit Diagram

A lot of 6v supply diagrams.

5v transformerless power supply circuit diagram.

Transformerless power supply 12v. Please i am having this issues with transformerless power supply. We can convert the high voltage ac into low voltage such as 5v 6v 9v 12v dc without using the transformer which is called transformerless power supply. Digital dc regulator if you are looking for 5v dc power supply for the digital.

Here is the circuit diagram and explanation for transformerless power supply. Resistor r1 does the job of current limiting and bridge d1 rectifies the mains voltage. It is nothing but converting 220v main ac voltage to 12v dc voltage with the use of the capacitor resistor bridge rectifier and zener diode. Each time i intend to use transformerless power supply to power microcontroller 8051 atmega328p and even a dc fan of 12v 1 4a 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.

The above diagram represents the transformerless power supply 12v. The zener diode regulates the rectifier output to obtain a steady 5v dc and capacitor c2 acts as a filter. Simple dc regulators 12v 15v 30v. 5v power supplies digital power supplies.

The working of this circuit is quite simple. Here is the circuit diagram of a 5v transformer less power supply using minimum components. 1 5v 3v adapter usb to 1 5v or 3v converter circuit small uninterruptible ups.