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    Solar panel USB charger

     

    With any size solar panel, the battery powered by the solar panel is charged for the USB device. Hardware components: Solar panel (any size) × 1 TP4056 battery charging module × 1 Rectifier diode 6.8V × 1 0.9-5V to 5V DC-DC USB voltage converter boost boost power module × 1 LM2596 DC-DC adjustable power buck module buck converter 3V-35V × 1 Lithium battery 18650 (3400+ MAH) × 1 Battery block 18650 x 1 × 1 Dial switch, dial × 1 Manual tools and makers: Soldering iron (general) Solder line, lead-free PCB bracket, soldering iron Strip clamp and cutter, 18-10 AWG / 0.75-4mm2 capacity wire Hot glue gun (general) Step 1: The benefits of the inverter The project is essentially a modification of the DIY solar cell charger project, which allows for any size solar panel. By inserting the DC-DC buck converter module between the solar panel and the charging module, tighten the small screw on the buck converter, the output can be 5V regardless of the size of the solar panel. Check if the inverter can handle the peak power supply voltage of the panel. Step 2: Connect it Use wires and solder to connect all components. The figure below from the left to right from the solar panel to the USB port. Step 3: Fix it to the position In our case, we want to display components and circuits, so they are mounted on wooden backs with a hot adhesive and covered with organic glass. Be The original content of the circuit city is not reproduced without authorization.

     

     

     

     

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