In order to reduce the possibility of device damage due to overvoltage breakdown and improve the reliability of the rectifier device, a silicon avalanche rectifier can be used. In this kind of device, when the reverse voltage exceeds the allowable peak value, uniform avalanche breakdown occurs across the entire PN junction. The device can work under high voltage and high current, so it can withstand considerable reverse surge power. When manufacturing this kind of device, it is required to have few material defects, uniform resistivity and smooth junction surface. The exposed junction area should also be properly protected to avoid surface breakdown. The selenium rectifier has a large anti-overload capacity and a strong ability to withstand reverse surge power.
In two basic types of rectifiers based on high-power diodes or thyristors, the high-voltage AC power of the grid is converted into DC power through the rectifier. Mention other types of rectifiers in the future (near or distant): choppers, chopper DC/DC converters, or current source inverter active rectifiers based on leading-edge products of uncontrollable diodes. Obviously, this latest type of rectifier technology contains more content to be developed, but it can show advantages, for example, it is loaded on the power grid with very small harmonic interference and a power factor of 1.
A rectifier is a rectifier device, simply put it is a device that converts alternating current (AC) into direct current (DC). It has two main functions:
First, convert alternating current (AC) into direct current (DC), and supply it to the load after filtering, or to the inverter;
[1] Second, provide charging voltage to the battery. Therefore, it also acts as a charger at the same time.