5v Solar Panel Charger Circuit

Circuit diagram of cell phone solar charger is given below.

5v solar panel charger circuit.

I have marked the ve side by adding black small dots on that side. The charger has voltage and current regulation and over voltage cut off facilities. The meter and the input diode are not included in the pcb. Used 23 light conversion rate high efficiency solar panel produce 5v 2a 1 usb port output charger support and compatible many device open size.

Here we can also use solar tracker circuit so that sun light can fall on the panels all the day. This solar panel ll give an output of max of 3v at 150ma. The charging current passes to lm317 voltage regulator through the diode d1. As shown in the above wiring diagram simply solder the solar panel in parallel and connect them to a boost converter module through a switch.

A 2v solar cell would be more appropriate for charging a single rechargeable battery. The best way to confirm this is by testing the panel s short circuit current by connecting a 10 amp ammeter directly across the solar panel terminals at peak sunshine the result will give you the data. This uses the energy from some solar cells to charge the batteries and boosts the voltage from it to the 5v used by the arduino uno. Connect an ammeter in series with the solar panel positive to check this i doubt the panel might not be supplying this much current at 5v.

Once the solar garden light circuit is constructed on a breadboard my arrangement looks like this below. The output voltage and current are regulated by adjusting the adjust pin of lm317 voltage regulator. The solar panel is placed in bright sunlight at peak solar conditions. It is a 10w solar panel with 18v output.

On the solar panel in center of left side right side you ll see a very small panel of smooth meta this is the ve ve terminals. This circuit was based on the awesome tutorial by deba168 solar powered arduino weather station. Solar panel the back of the solar panel is shown in image. The circuit harvests solar energy to charge a 6 volt 4 5 ah rechargeable battery for various applications.

2 1 solar battery charger circuit. We have used the solar panel with the below specification. The potentiometer is controlled to have 8 5v across the d2. The second design explains a cheap yet effective less than 1 cheap yet effective solar charger circuit which can be built even by a layman for harnessing efficient solar battery charging.

The circuit uses a 12 volt solar panel and a variable voltage regulator ic lm 317. With the standard 0 7v drop of a diode you ll have 1 3v of charge voltage which won t be high enough for a maximum charge but a schottky rectifier diode selected for 0 5v forward voltage drop would get you 1 5v charging. Solar cells are connected to the input of the lithium battery charger tp4056 whose output is connected to the. Solar battery charger operated on the principle that the charge control circuit will produce the constant voltage.