This work presents the development of a solar regulator which manages the\ncharge and discharge of a (lead) battery installed in a photovoltaic system in\norder to extend its lifetime. The regulator is controlled by a microcontroller\n(PIC16F877A) and protects the battery against overcharging, deep discharge,\nbut also against temperature drifts. The operating principle is based on the\ncontrol of a DC-DC converter by a rectangular signal MLI generated by the\nmicrocontroller. In addition to the protection function of the regulator, there\nis included a control and monitoring panel consisting of a visualization interface\non which the system quantities can be observed. Thus, it will be given to\nthe user to be able to act on the system. This display interface uses as a display\nan LCD screen and LEDs. Simulation results are presented to illustrate the\noperation of the proposed solar controller.
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