Solar Power Bank Circuit Diagram

Solar Power Bank Circuit Diagram

Updated by: Savannah

On: 18 Okt, 2018

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Category: Circuit

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Today, every one had a smartphone. Smartphone or handphone had battery which charge phone circuit than smartphone working well. But if we want to charge handphone and there is no plug to charge smartphone we can use alternative energy like solar p...

Today, every one had a smartphone. Smartphone or handphone had battery which charge phone circuit than smartphone working well. But if we want to charge handphone and there is no plug to charge smartphone we can use alternative energy like solar power bank. This solar power bank circuit provides DC power through USB connector and has 1 Watt white LED for lighting needs. This power bank circuit can be built with easily available breakout board.
5V solar panel
TP4056 Li-ion battery charger
Lithium Ion battery 18650 2600mAh
Switch
XL6009 DC-DC Converter
3V to 5V USB Boost Converter
White LED 1 Watt
This block diagram describes about the power bank design. First one is 5V, 500mA solar panel then Li-Ion battery charger breakout board TP4056 then two lithium Ion battery 18650. Then at the output stage XL6009 DC-DC boost converter increases DC voltage range, 1 Watt white LED connected to XL6009 board output through toggle switch, finally 3V to 5V USB boost converter breakout board deliver power to mobile or gadgets.
Wiring the solar panel and other breakout board in this circuit is very simple. First connect the solar panel +Ve line to TP4056 Li-Ion battery charger board IN+ terminal and connect -Ve from solar panel to IN- of TP4056 board, two lithium ion battery connected in parallel and then terminals are connected to the BAT+ & BAT- of TP4056 battery charger breakout board.

XL6009 DC-DC converter is capable of giving 5V to 35V output from 3V to 32V input and then gives Non-Isolated boost output. This board connected to the Li-Ion battery through a toggle switch at the output of XL 6009 breakout board, 1 watt white LED and 3V to 5V USB boost converter are connected.

When the solar panel exposes to the sun light it will produce voltage through photovoltaic reaction and then the boosted voltage from TP4056 makes Li-Ion battery to charge. This charge can be converted into required voltage by XL6009 and USB boost converter breakout boards.

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