Introduction
In today’s world, we have become increasingly dependent on technology devices and gadgets. We just cannot function without them, from cell phones to earbuds. These devices, on the other hand, cannot function without their batteries. Chargers are required for batteries, and there are several sorts of chargers. But, imagine that you are traveling and there’s no socket to charge your equipment’s batteries. In that, case there should be an alternative option. And, for this reason, we have decided that, in this tutorial, we are going to “Solar power battery charger”.
A solar charger circuit is a device that generates power from sunlight. Cell phones, computers, automobile batteries, reading lamps, and personal fans all can use this power to charge their equipment. Because these chargers can’t directly discharge power into the devices, they come with a long-lasting battery pack. This stores the power generated by the solar cells in the battery, making it ready for use later through a charging capacitor.
Hardware Required
| S.no | Component | Value | Qty |
|---|---|---|---|
| 1. | Regulator IC | LM317 | 2 |
| 2. | Solar panel | 9V | 1 |
| 3. | SLA Battery | 6V/4.5Ah | 1 |
| 4. | Diode | 1N4007 | 1 |
| 5. | Schottky diode | 3A,50V | 1 |
| 6. | Capacitor | 0.1µF | 1 |
| 7. | Resistor | 220Ω, 680Ω | 1, 1 |
| 8. | Variable Resistor | 2K | 1 |
Circuit Diagram
Working Explanation
When the sunlight strikes the solar panel, the photovoltaic device which is a solar panel cell converts the solar energy into voltage. LM317 IC is used for voltage regulation; the potentiometer is there to adjust the voltage. The regulating voltage level may be adjusted according to the SLA battery voltage; here, a 3A, 50V Schottky diode is employed to prevent reverse supply. You get the 6V to charge your device.
Application and Uses
- To charge electronic equipment, devices, and gadgets like mobile phones, laptops, etc.
- The circuit is useful to charge devices while traveling.
