Power Supply with Short Circuit Protection 13.8V 30-40A

Here's a safe power supply with short circuit protection. The power supply is build around the LM723 controller and four BUZ24 (or IRF150) power N-Channel FET transistors. FET transistors are used because of the simplicity of controlling the current through these transistors, it's simply voltage controlled, and because of the low power consumption of the controller board.

 

Project schematics, PCB layouts and data sheets

• Schematic of the 13.8V 30-40A Power Supply
• PCB layout of the Power Supply controller board
• PCB layout of the Power Supply controller board - scaled 1:1
• PCB layout of the Power Supply controller board - mirror
• PCB layout of the Power Supply controller board - mirror - scaled 1:1
• The internal connections of the Power Supply
• Data sheet of the IRF150 N-Channel HEXFET
• Data sheet of the BUZ24 N-Channel SIPMOS FET

Source: 13.8V 30-40A Power Supply