How to Build a Simple 12 volts power supply circuit with a hammer
Build 12V high current power supply, do not need PCB. We use a hammer and nail ! Why? Read more
12V Power Supply
9V-12V Negative Voltage Regulator using PNP Emitter Follower
See two negative Voltage Regulator circuit ideas. Do you know? we can use PNP transistor and Zener diodes in these example circuit 12V,9V at 700mA output Read more
12V, 10A Regulated Power Supply
This is 12V 10A power supply circuit can use it instead of normal 12V car battery. But save and easy to use when you are in your house. Read more