Solar Panel Circuit

Solar light ics are very handy they have the dark detection circuit and the voltage multiplying led driver built into one small four pin component.

Solar panel circuit.

One positive and one negative. The solar panel pv that receive the sun s rays and convert them into electricity called direct current dc. Ac electricity flows through every outlet of your home powering the appliances. A relay is introduced in the circuit and is wired with the led module such that it s switched on only during the night or when it s dark below threshold for the solar panel to generate the required any power.

The solar panel voltage specs may be anywhere between 18v and 24v. He needs batteres to supply the 1500w loads for 12hours at night. I am not sure why you said 2pcs of 120ah12v battries in series. Add the battery and the solar cell and you have a solar light.

When you connect two or more solar panels like this it becomes a pv source circuit. This circuit makes sure that the voltage from the solar panel never exceeds the safe value required by the battery for charging. In this circuit the solar panel charges up a 3 cell nimh battery 3 6 v. Just like a battery solar panels have two terminals.

Between the two is a reverse blocking diode. Basically that is 1500w 12 18000wh. Dividing by 50 depth of discharge as you choose flooded that is 18000 0 5 36000wh or divde by 0 8 if for agm batteries that is 18000 0 8 22500wh. In order to regulate the voltage from the solar panel normally a voltage regulator circuit is used in between the solar panel output and the battery input.

This one way valve allows current to flow from the solar panel to the battery but does not allow current to flow backwards out of the battery through the solar panel.