DIY Variable Lab Bench Power supply || How to Make dc power supply machine for Mobile phone

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DIY variable Lab Bench power supply || how to make dc power supply machine for mobile phone




Use parts

1 . 5A 20v-20v transformers

2.  Digital voltage ⚡ and Ameter  

3. step down buck converter

4. 47k volume control

5. 22k volume control

6. CPU 12dc fan

7. Wire high quality used

8. Power output connector and battery connector

9. Soldering iron

10. Soldier wire

11. CPU bad  power supply 


Complete

Circuite diagram




 








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