Solar AC power generation systems consist of solar panels, a charge controller, an inverter, and batteries; solar DC power generation systems do not include inversion. The process of converting AC power to DC power is called rectification, the circuit that performs this rectification function is called a rectifier circuit, and the device that performs this rectification process is called a rectifier or rectifier. Conversely, the process of converting DC power to AC power is called inversion, the circuit that performs this inversion function is called an inverter circuit, and the device that performs this inversion process is called an inverter or inverter.
The core of an inverter device is the inverter switching circuit, or simply the inverter circuit. This circuit performs the inversion function by turning power electronic switches on and off. The on and off of power electronic switches requires specific drive pulses, which can be regulated by varying a voltage signal. The circuit that generates and regulates these pulses is usually called a control circuit or control loop. The basic structure of an inverter device, in addition to the inverter circuit and control circuit mentioned above, also includes protection circuits, output circuits, input circuits, and output circuits.
