12 Volt Power Supplies


Posted on Nov 19, 2012

4 simple 12Vdc power supply circuits with output voltages around 12V. First power supply circuit is built with BD139, one zener diode and a few passive components. Each of the schematic is very simple to construct and will function without problems if you respect the maximum power supply ratings.


12 Volt Power Supplies
Click here to download the full size of the above Circuit.
12 Volt Power Supplies - image 1
Click here to download the full size of the above Image.

12V BD139 power supply circuit LM7812 power supply schematic A very simple PS circuit with the basic 3 Amper version of LM7812 IC. LM317 variable power supply circuit 2N3055 adjustable power supply schematic This PS circuit has a over-current protection and a good stabilized voltage. It can deliver up to 1.6 A.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Isolated RS-485 and RS-422
Telephone Voice Mail Alert Circuit
FM Transmitter 4Watt
H bridge circuit
discussing output stage of square wave
When page is bookmarked text here is referenced verbatim
Current amplifier circuit configuration



Top