Рет қаралды 254
Hello to dear friends and companions! In this video from the "DIY" series, we will review and select the components for building a portable (pocket-sized) power supply with adjustable voltage and current output up to 3 amps. Having a variable power supply ranging from 1 to 30 volts, which is small, lightweight, and easy to carry and use, can be very useful and practical.
By following this video and the upcoming tutorials, you can build power supplies with features such as precise output voltage adjustment, output current adjustment, and other useful and practical features you need, all at the lowest possible cost.
I hope you enjoy watching this video and find it useful!
Parts and components needed:
1. Plastic box with dimensions around 3.5 × 6.5 × 9 cm or slightly larger
2. DC to DC buck converter module with current control and cut-off point
3. Digital voltage and current display (voltmeter and ammeter)
4. Diode for protecting the buck converter module (1 piece)
5. 10kΩ potentiometer (2 pieces)
6. 1kΩ potentiometer (1 piece)
7. Knobs for the potentiometers (3 pieces)
8. Female adapter jack (1 piece)
9. Female banana jack (2 pieces)
10. Male banana plug (2 pieces)
11. Alligator clips (2 pieces)
12. On/off switch (1 piece)
13. 3mm LEDs (3 pieces, any color)