0-50V 3A Variable power supply
It is a modern circuit, Thus you can buy all components in the local store or buy KIT. And the important thing is the overcurrent protection.
Power supply
8 How to convert 12V to 6V step down circuit
Reduce 12V battery to 6V for small circuit. You will love it same us.
2 DC power supply protection circuits
Here are two DC power supply protection circuits. The 3-pin regulator 7800 series gets popular. I also like it. Because it is convenient and affordable.
24V power supply circuits
Learn 9 ways to build 24V regulated power supply circuits, with 1A, 2A, 3A, 5A load current, low ripple. using general parts easy to build