Power Supply Stabiliser Using IC 78LXX and 79LXX

This power supply circuit using IC 78LXX , with three pin. In, out and ground. this ic using internal limitation current output and protection load thermal for ic transistor secure from damage. In practical ,this ic 78LXX can damage if over voltage on input. The voltage settings for positive and negative output between 2.6 volt until 24 volt. And output current between 100 mA until 5 Ampere.

This Power Supply stabiliser is very worth for your Project and for hobbyist .

List of 78LXX and 78XX :

Imax = 100 mA

Uout   Type               IUtr                  (RMS)                       C1
                                  (min)                 (max)           
5V      78L05              6.4 V                 9.6 V               1000 uF/16 V
6V      78L06              7.3 V                10.3 V              1000 uF/16 V
8V      78L08              9.6 V                12.0V                470 uF/25 V
10V    78L10             11.0 V               13.4 V               330 uF/25 V
12V    78L12             13.1 V               15.2 V               330 uF/25 V
15V    78L15             15.2 V               17.3 V               330 uF/25 V
18V    78L18             17.5 V               19.5 V               330 uF/25 V
24V    78L24             21.9 V               23.7 V               330 uF/25 V


Schematic Diagram :

We can use breadboard to test before you solder in PCB.  We can use universal dot matrix PCB for this project , or we can use PCB as design shown for the components.

Original Sources From Elektor Electronics.

On the next article, I will post PCB design, testing on breadboard, and also Kit with available for you to purchase.