In this article we will learn how we can build a 5V 3A charger using Solar panel. You can use this charger at any place where power supply is not available. If you are traveling to some remote place and your phone's battery starts to die, but with this your very own DIY solar phone charger, you can use the sun's energy and keep your devices powered, even off the grid.
Let's Start By Gathering The Required Components
Required Components:
Solar Panel: Choose a 5V solar panel with a proper wattage(usually 3W works fine) that meets your desired charging speed. Higher watts solar panel charges faster.
TP4056 Module: The TP4056 1A Li-Ion Battery Charging Board Type C with Current Protection is a compact module, specifically designed for the charging of individual 3.7V 1 Ah or higher lithium-ion (Li-Ion) cells. Utilizing the TP4056 charger IC and DW01 battery protection IC, this module delivers a charge current of 1A before automatically ceasing the charging process upon completion. Moreover, if the battery voltage falls below 2.4V, the protection IC intervenes by disconnecting the load, safeguarding the cell from operating at excessively low voltages. The module also acts as a shield against overvoltage and reverse polarity connections. This module regulates the charging process for your lithium-ion battery.
Lithium-ion (Li-ion) Battery: Select a 3.7V Li-ion battery with a capacity (mAh) that determines how long you can charge your devices.
DC-DC 5V 3A USB Boost Converter Module: This fast Charge Module features USB and Type-C ports, accommodating a voltage input range of 10.5-32V while consistently delivering a 5V/3A output. This versatile module supports multiple charging protocols, making it an ideal choice for diverse applications such as fast mobile phone charging, solar charging setups, etc. With a long operation and resilience against voltage fluctuations, it ensures stable and reliable performance over time. This module increases the voltage from the battery to the required 5V for USB charging.
Connecting Wires
Let's Start Making The Connections
Begin by connecting the components as follows:
1. Battery to TP4056 Module:
Connect the positive terminal of the battery to the "B+" pin of the TP4056 module and Connect the negative terminal to the "B-" pin.
2. Solar Panel and TP4056 Module:
Connect the positive and negative terminals of the solar panel to the "IN+" and "IN-" pins of the TP4056 module, respectively.
3. TP4056 and USB Output(Boost Converter):
Connect the positive output pin of the TP4046 module (usually labeled "OUT+") to the positive pin of a USB A female connector. Connect the negative output pin ("OUT-") to the negative pin of the USB connector.
Lets Now Test our Circuit
Place the solar panel under sunlight and observe the charging LED on the TP4056 module.
Confirm the LiPo battery is charging by checking its voltage.
Connect a device(smart phone) to the USB output and check the output voltage using a Multimeter.
Safety Measures
Choose components compatible with each other and based on your desired charging speed and battery life.
Prioritize safety by following proper handling and disposal guidelines for Li-ion batteries.
Consider seeking help from a qualified electronics professional. Our team at Campus Component provides end to end service for your project.
Applications
Charge your phone, tablet, or other USB-powered devices in the car.
Power small electronics like cameras, speakers, or portable LED lights.
Create a sustainable charging solution for emergency kits.
Emergency power backup
Energy solutions for remote areas.
Conclusion
Thus by following the above simple steps you can build your own solar power portable USB charger. By some more tweaking you can even make a wireless charger from this setup. Experiment with different solar panel sizes and battery capacities for optimal results. Building your own solar phone charger is rewarding and has multiple practical applications.
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