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Stabilized Power Supply 13.8V High Current 10 Amps with PCB

Fig 1 – Stabilized  Power Supply 13.8V High Current 10 Amps

This is an excellent and simple stabilized power supply of 13.8V and high current, 10 Amps. This power supply has great stability, and you can use it with a large number of projects, such as: 
Power supply for Radio Amateurs, which need a high current and excellent stabilization to work well, batteries chargers, since, 13.8V is a good voltage to charge most batteries, automotive sound power supply, etc. 
Finally, it can be used for countless types of projects, not to mention that its assembly is easy to build, using discrete components that are easy to acquire.

Figure 2 below, show the schematic diagram to be followed, with the arrangement of the components and their configurations.
Fig 2 – Stabilized Power Supply 13.8V High Current 10 Amps

Component List

  • U1 ………………... Linear Voltage Regulator LM7812
  • Q1, Q2, Q3 ………. PNP TIP36C Power Transistor
  • D1 ………………... Bridge Rectifier – KBPC5010 – 100V, 50A
  • D2, D3, D4 ………. Silicon Diodes 1N4007
  • LED1 …………….. Light Emitting Diode – LED 3mm or 5mm “General purpose”
  • R1, R2, R3 ……….  Power Resistor 0.1Ω 5W  (brown, black, silver, gold)
  • R4 ………………… Resistor 100Ω 3W (brown, black, brown)
  • R5 ………………… Resistor 1.5KΩ 1/4W (brown, red, red)
  • C1 ………………… Electrolytic Capacitor 10.000µF /35V
  • C2 ………………… Electrolytic Capacitor 470µF /35V
  • C3 ………………… Polyester/Ceramic Capacitor 0.1µF or 100nF
  • C4 ………………… Electrolytic Capacitor 4400µF /35V
  • J1, J2 ……………… Kre Block Terminal Terminal 2-Way Double Connector
  • Miscellaneous …….. Printed Circuit Board, tin, wire, etc.

The Transformer

The power transformer must have a supply capacity of at least 10 Amperes, this taking into account that you want to use this circuit for 10A, you may be using a power transformer with a smaller capacity that will not harm the circuit, just making it clear, that if a power transformer with a lower current is placed, for example, 5A, at the output you will have a maximum of 5A, I said at most because, we know that there are losses due to dissipation, conversion, etc., but it’ll work, the voltage of the transformer must be at least 12Vac, and a maximum of 18Vac, for a more efficient operation.

We are offering to download the link with the printed circuit board printing files, they are; GerberPDF layout, PNG, all the files with a direct link to Mega.

Direct link to download

Click in the link to download the Files: PCB Layout, PDF, GERBER

If you have any questions, suggestions or corrections, please leave them in the comments and we will answer them soon.

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My Best Regards!!!

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