Solar AC power generation system is composed of Yang-energy battery board, charging controller, inverter and battery together, while solar DC power generation system does not include inverter. Inverter is a kind of power conversion device, the inverter can be divided into self-excited oscillation inverter and other excitation oscillation inverter according to the excitation mode. The main function is to turn the DC inverter of the battery into alternating current.
Through the full-bridge circuit, SPWM processor is generally used to modulate, filter, boost and so on, to obtain the lighting load frequency, rated voltage and other matching sinusoidal AC power for the end users of the system. With the inverter, DC batteries can be used to provide alternating current for electrical appliances.