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In today's tutorial we'll learn, how to make an Automatic Battery Charge Controller Circuit with Auto Cut OFF or Over Charge Protection and Battery Charge / Capacity Level Indicator system. The controller is based on the two different circuits, the one is responsible for over charge protection to maintain battery health and the other is for battery level indication, I combined both of these useful circuits and made a schematic and then I ordered the PCBs online from PCBWAY to make this project more professional!
Gerber File: drive.google.c...
Schematic: drive.google.c...
PCB Components:
1. LEDs: s.click.aliexp...
2. LM3914N IC: s.click.aliexp...
3. Resistors: 1K, 2.2K, 10K, 56K, 100K: s.click.aliexp...
4. Variable Resistor: 100K, 10K: s.click.aliexp...
5. Electrolytic Capacitor 33uF: s.click.aliexp...
6. Ceramic Capacitor 104 (100nF): s.click.aliexp...
7. Terminal Blocks: s.click.aliexp...
8. 5V Relay: s.click.aliexp...
9. BC547 Transistors: s.click.aliexp...
10. 1N4007 Diode: s.click.aliexp...
11. Junction.
Other Materials:
1. Multimeter for Calibration: s.click.aliexp...
2. 12V Lead Acid Battery.
3. 12V Bulbs.
4. Crocodile Clips: s.click.aliexp...
and some basic tools are:
Soldering Iron: s.click.aliexp...
Soldering Paste: s.click.aliexp...
Hot Glue Gun: s.click.aliexp...
Third Hand Tool: s.click.aliexp...
Variable Power Supply: s.click.aliexp...
Electric Screwdriver: s.click.aliexp...
Cordless Drill: s.click.aliexp...
DIY Tool Kit: s.click.aliexp...
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