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Transformer-less Power Supply 230V to 3V/5V/6V/9V/12V





If you make electronic projects, you always use power supply to operate them. If it is not an experiment, your project will be a part of your home, warehouse or any ware. The problem always come is that how to give the power to the projects.


The souse of power is more important to operate the devices. If you use batteries you have to change it frequently when the battery is dry out.


I know, you are always willing to give a power supply without interruption to your device as well as less maintenance cost.
This lesson and the practical work from Easy Mades is giving you a solution for that matter.

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Following circuit diagrammed is very simple and more practical one. If you make it, you must aware about the Direct Current because it is caused to injure you.

  • C1 = 474pf (400V)
  • C2 = 270uf (25v)
  • R1 = 470k(1/4W)
  • ZD1 = 3v, 5v, 6v, 9v or 12v Zener Diode
  • D1 = 4 x N4007 Diodes


Operation of the Circuit.
C1 capacitor work as a current reducing capacitor and interconnected R1 resistor discharge the current loaded in the capacitor. Then 1N4007 diodes make rectify the current from AC to DC and also C2 electrolytic capacitor help to smooth the current. The main part of voltage regulating is the zener diode.
Zener diode control the voltage and the voltage over the value of the zener diode will be discharged.

If you want to get more current , you can use .22Uf, 1 uf, 2.2uf or 3 uf capacitors  and also if you want to change the voltage you can change Z1 diode as 3v, 5v, 6v, 8v, 9v, 12v etc.
 
Be careful not to touch any part of the circuit when the AC power is connected. And if you have not experience working with AC, please ask from your elders or put it in the comments.

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