Solar regulator, also named as solar charge and discharge controller, is an automatic control device used in solar energy systems to control the charging of batteries by solar panels and the power supply of batteries to the load of solar inverters. It regulates and controls the charging and discharging conditions of the battery, and controls the power output of the solar panel and battery to the load according to the power demand of the load. It is the core control part of the entire solar energy supply system.

Solar panel belongs to photovoltaic equipment (mainly composed of semiconductor materials), which generates current through photoelectric effect after being irradiated by light. Due to the properties and limitations of materials and light, the current generated by them is also a curve with volatility. If the generated current is directly charged into the battery or directly supplied to the load, it is easy to cause damage to the battery and load, which seriously reduces their life. Therefore, we must first send the current to the solar regulator, use a series of special chip circuits to digitally adjust it, and add multi-level charge and discharge protection. At the same time, we use our unique control technology "adaptive three-stage charging mode" to ensure the safe operation and service life of the battery and load. When supplying power to the load, it is also to let the current of the battery flow into the solar regulator first, and then send the current to the load after its adjustment. The purpose of this is: first, to stabilize the discharge current; Second, to ensure that the battery will not be over discharged; Third, it can carry out a series of monitoring and protection on the load and battery.

In a word, almost all solar energy systems powered by batteries need a solar regulator extremely. The function of the solar regulator is to regulate the power transmitted from the solar panel to the battery. The battery overshoot will significantly reduce the battery life, or even damage the battery.

The solar regulator is mainly divided into MPPT solar regulator and PWM solar regulator. 111