POWER SUPPLY

A power supply can by broken down into a series of blocks, each of which performs a particular function. 

Each of the blocks is described in more detail below:

• Transformer - steps down high voltage AC mains to low voltage AC.
• Rectifier - converts AC to DC, but the DC output is varying.
• Smoothing - smooths the DC from varying greatly to a small ripple.
• Regulator - eliminates ripple by setting DC output to a fixed voltage. 

 

 

1. But in my case i am using only regulator block .I am using a 7805 and 7812 +ve regulator IC to get a steady 5 & 12 v at output.
2. The Transformer, Rectifier, Regulator blocks are replaced by an 12v adaptor 

Circuit Diagram