04/15/2024

How To Make a Variable Power Supply. 1-25V & 0-10A Voltage & Current Adjustable Power Supply

How to Regulate Amps and Voltage 0 to 10Amp. | 1 to 25Volt adjustable
Voltage current adjustable power supply.
This DC to DC power supply. Can be used with an AC DC transformer or Switch Mode adapter.

 

You Need:

LM317 Regulator Integrated: https://s.click.aliexpress.com/e/_DBMRznD
0.1uF Capacitor (x2): https://s.click.aliexpress.com/e/_DDxQ9D1
5K % 10K Potentiometer: https://s.click.aliexpress.com/e/_DEIBtXZ
220R & 1K Resistor: https://s.click.aliexpress.com/e/_DkVeGnp
5mm LED: https://s.click.aliexpress.com/e/_DcHLoyb
0.10R or 0.22R 5W Resistor: https://s.click.aliexpress.com/e/_DdmuTvl
1000uF 35V Capacitor: https://s.click.aliexpress.com/e/_DCvawQx
PCB Board: https://s.click.aliexpress.com/e/_DDnWP2f
7806 Regulator: https://s.click.aliexpress.com/e/_Dn3OesR
10K NTC: https://s.click.aliexpress.com/e/_DlzicTz
5K Trimpot: https://s.click.aliexpress.com/e/_DCL4xbh
6V Fan (x2): https://s.click.aliexpress.com/e/_DBAmUpD
BD139 Transistor (x2) : https://s.click.aliexpress.com/e/_DFAQ7h9
TIP3055 Power Transistor (x3) : https://s.click.aliexpress.com/e/_DBkhi3l
Mini Digital Volt&Current Meter (Optional): https://s.click.aliexpress.com/e/_DDXeJHH
Aluminum Heatsink (x2) : https://s.click.aliexpress.com/e/_Dm4MmR9

Digital Multimeter AC DC A830L : https://s.click.aliexpress.com/e/_DmjzgOJ
Digital Multimeter AC DC ANENG XL830L : https://s.click.aliexpress.com/e/_DEJiyIP


CORRECTION:  In the video, the diode connected to the capacitor at the circuit output is unnecessary, so I removed it from the circuit diagram. The diode does not need to be used.

 


You can add Voltage and Ampere meter:

Note: When no load is connected to the output, the voltage value will be incorrect (because the capacitor is charging). The correct value is measured when the load is connected (motor, lamp, etc.). Capacitor can be canceled optionally.

Fan circuit diagram:

 

Power Supply and Rectifier Circuit Diagram:


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PDF and Gerber Files: https://drive.google.com/file/d/1b4gx7qHbjyGfPccOrUoe03RalR45gMCh/view?usp=sharing