A Common Negative Photovoltaic Controller System

Abstract

The invention discloses a co-cathode photovoltaic controller system which comprises a constantan wire A, a constantan wire B, a charging MOS module, a discharging MOS module, an LCD man-machine interface, an MCU processor and a binding post; the constantan wire A is connected with an S-pin and a B-pin of the binding post; the constantan wire B is connected with a B-pin and an L-pin of the binding post; and the constantan wire is of a U-shaped structure. According to the invention, the U-shaped constantan wires are connected to a charging loop cathode and a discharging loop cathode and serve as current sampling resistors respectively, production processes are reduced, the system reliability is enhanced, space is saved for large-power wiring of a circuit board, the width of a laid copper foil in large-power wiring is increased, loss of the circuit is reduced, the LCD man-machine interface can be used to monitor the voltage of a solar cell panel in real time, parameters of the solar cell panel can be set, and thus, workers can know the working condition of the controller visually.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic controllers, and relates to a common negative photovoltaic controller system. Background technique [0002] In today's world, traditional energy sources are decreasing day by day, and all countries are facing different degrees of energy crises. Solving energy shortages has become an increasingly important issue. At the same time, environmental pollution caused by traditional energy consumption is also becoming more and more serious. Actively develop new energy, especially the use of solar power to solve lighting problems has become a feasible entry point for new energy development. At present, there are various specifications of photovoltaic controllers on the market, which are widely used in roads, schools, residential areas, and squares. In public places such as solar complementary systems. [0003] Photovoltaic controller is an automatic control device used in solar power generation syste...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a common negative pole photovoltaic controller system. By connecting U-shaped constantan wires in series in the negative pole, the wiring range is expanded, and the problem of narrow wiring range on the circuit board of the photovoltaic controller and poor reliability of the system is solved.

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