Solar charging circuit board disconnect

How does a solar panel charge controller work?

The main function is to make sure that the battery is properly charged and protected from overcharging. As the input voltage from the solar panel rises, the charge controller regulates the charge to the batteries preventing any overcharging and disconnects the load when the battery is discharged. My Book : DIY Off-Grid Solar Power for Everyone

How does a solar controller circuit work?

The controller circuit is expected to perform as follows. 1. Cut off solar supply to battery when its voltage reaches approx 56V and maintain appropriate hysteresis to avoid frequent switching of power MOSFET. So the solar supply to battery would resume again only when the battery voltage reaches approx 48 V. 2.

How to charge a solar panel?

The Charge Cycle consists of 3 stages. Stage 1 Bulk charge: Arduino will connect the Solar Panel to the battery directly ( 99 % duty cycle). The battery voltage will increase gradually. When the battery voltage reaches 14.4V, stage 2 will begin. In this stage, the current is almost constant. Stage 2 Absorption charge:

Do I need a solar charge controller?

If you are planning to install an off-grid solar system with a battery bank, you’ll need a Solar Charge Controller. It is a device that is placed between the Solar Panel and the Battery Bank to control the amount of electric energy produced by Solar panels going into the batteries.

What is a solar charge controller?

The solar charge controller is to charge our batteries and we should be very careful while doing the connections to ensure that we do not miss a connection since any error might lead to loss of our solar panel or a battery which are very expensive. Below is the image of a completely routed PCB board, ready for Layout.

When should solar panel continue charging battery?

1. Solar panel should continue charging battery not beyond 56 V. 2. In the event of battery discharge, the charging process should resume again only when it reaches 48V. In other words hysteresis should be maintained. 3. Battery should continue supplying power to load when battery voltage remains in between 42 - 56V.