7805 Regulator
7805 Regulator Circuit
If you want to build a small power supply +5 V, the 7805 regulator is a great choice, especially for experiments with digital circuits because the type of IC is widely available in the market. This IC features over-heating protection, stops supplying current in case of excess heat.
This circuit can provide +5 V output at about 150 mA current, but can be increased to 1 A when good cooling is added to the 7805 regulator IC.
7805 Regulator Circuit Diagram
The capacitors must have enough high voltage rating to safely handle the input voltage feed to circuit. The 7805 regulator circuit is very easy to build for example into a piece of veroboard.
7805 Regulator Circuit
Modification Output Current and Voltages
If you need a current output of more than 150 mA, please update the output current up to 1A. Change the transformer you use to the transformer that has a current rating greater than ever. Do not forget to put the heatsink on the 7805 IC.
If you need a voltage output greater than +5 V, please modify the circuit by replacing the 7805 IC to a different output voltage from regulator 78xx ICs. You must remember it for working properly. that at least 3V input greater than regulator output voltage you need for your 7805 regulator.
See more about Power Supply Testing and DC Power Supply Schematic.
