Working Principle of Solar Cell

Similarly, the holes in the depletion can quickly come to the p-type side of the junction. Once, the newly created free electrons come to the n-type side, cannot further cross the junction because of barrier potential of the junction.

In most photovoltaic systems, a controller is used to protect the battery from overcharge or overdischarge. Overcharge may vaporize the electrolyte in the battery and cause malfunctions, while overdischarge may cause premature battery failure. Both overcharge and overdischarge may damage the load. Therefore, the controller is one of the core components of the photovoltaic power generation system and the main part of the balance system.

The function of the solar controller is to stop the external discharge of the battery when the power of the battery is insufficient. If the discharge is too deep, it will also affect the capacity and life of the battery. is the recovery interval for overcharge or overdischarge protection. In order to avoid the work of the load caused by the line resistance or the self-recovery characteristics of the battery.

Solar controller installation and precautions, connect the solar panel lead, and finally connect the load line when the load is turned off. For the safety of your use, please do not make too much load or increase the solar panel too large; use a power supply such as a power supply instead of a solar battery to charge the battery.

solar charge and discharge controller