+12/-12 Volt Transformer Based Dual Voltage Power Supply

2,635

30

Introduction: +12/-12 Volt Transformer Based Dual Voltage Power Supply

About: For more content please subscribe to my YouTube channel @ https://goo.gl/BHxFf7

In this tutorial i will show you how to make simple +12/-12 volt transformer based Dual Voltage Power Supply circuit. You can watch the video which is embedded in this step for construction, parts list, circuit diagram & testing or you can continue reading the post for further details.

Step 1: Parts & Affiliate List

***Parts & Affiliate List***

***Affiliate & Support Links***

If you wish to support my videos then you can do by using my affiliate links given below, this way i get small commission for your purchases.

Step 2: Circuit Diagram & Other Details

Construct the circuit as shown in the circuit diagram.
For making this project one of the main component is the center tapped transformer. The transformer i used is of the rating 240v to 12-0-12v. The recommended rating would be 240v to 18-0-18v transformer.

  • Note : Sometimes the transformer you purchase outputs more then the specified value (which happened in my case), so be careful while choosing the transformer.

The C1 & C2 capacitor acts as the smoothing capacitor, this is to even out if there is any fluctuation. You can also add an bypass capacitor after the C1 & C2 to remove any AC noise which is not showed in my circuit. Next the two voltage regulators, The 7812 gives positive 12v & 7912 gives you -12v. This can be done with other variants too

  • Note : 78xx gives the positive output & 79xx gives the negative output

The capacitor C3 & C4 are used as the bypass capacitor to remove the AC noise & give an pure & cleaner DC Signal.

The testing of the circuit can watched in the video attached in the first step or you can CLICK HERE

Thank You for watching

For more such contents please visit & subscribe to my YouTube Channel by CLICKING HERE

Workshop Hacks Challenge 2017

Participated in the
Workshop Hacks Challenge 2017

Be the First to Share

    Recommendations

    • The 1000th Contest

      The 1000th Contest
    • Battery Powered Contest

      Battery Powered Contest
    • Hand Tools Only Challenge

      Hand Tools Only Challenge

    Discussions