Solar Panel Battery Charger Circuit Diagram

Solar panel charge controller wiring intro solar panel charge controller wiring diagram and step by step guide for off grid solar power system wiring.

Solar panel battery charger circuit diagram. The output current is identical to the solar panel output current. The solar panel consists of solar cells each rated at 1 2 volts. The charger has voltage and current regulation and over voltage cut off facilities. Using a current control feature the specialty of the design is that it incorporates a current control feature also.

The circuit harvests solar energy to charge a 6 volt 4 5 ah rechargeable battery for various applications. The circuit diagram shows a simple set up using the ic lm 338 which has been configured in its standard regulated power supply mode. Now set the output voltage by adjusting pot rv1. If a 20w solar panel has an output current of 2 5a in full sunlight the charge current will be 2 5a.

Check the battery voltage using digital multi meter. The circuit design is extremely straightforward and may be understood with the following points. Give the connections according to the circuit diagram. As can be seen in the given circuit diagram the design basically consists of a solar panel a pnp transistor few leds a battery and a few resistors.

Circuit is simple and inexpensive. 12v solar battery charger controller circuit make download circuit diagram a. Regarding the battery ah capacity it is generally best if the battery can be fully charged within one day or less. Connecting the solar panel charge controller mppt or pwm are the same solar battery and the pv array in the right way is the essential work before enjoying the solar energy.

First connect the ve from the solar panel to the centre pole of the relay then connect a red wire from battery to n o of the relay. Solar panel output voltage is directly fed into lm317 positive regulator circuit and it is adjusted to give 12 volt output and battery connected to this bias through 3a 50v schottky diode. Solar battery charger circuit advantages. The cd4047 ic is connected and configured as astable multivibrator when we turn on spst switch this circuit starts oscillation.

The circuit uses a 12 volt solar panel and a variable voltage regulator ic lm 317. Circuit diagram of solar panel battery charger step 6 from below you can see the soldered connections how they run along the copper tracks. Place the solar panel in sunlight. The fig show the wiring diagram of the ssc.

The circuit of a simple lm338 solar battery charger is shown below using the ic lm338.