Three-phase rectifier bridge circuit drawing method

Its circuit drawing method is: three circuits are connected in parallel, two chips in each channel are connected in series and the two chips are connected in the middle to be bypassed as three-phase three-terminal input, and the three-group circuit unified output terminal equipotential connection is the three-phase rectification. The positive pole of the bridge, the equipotential connection of the three input circuits of the unified input terminal is the negative pole of the three-phase rectifier bridge. The specific circuit looks at the following figure:

Application field of three-phase rectifier bridge

Three-phase rectifier bridges are generally used in medium frequency furnaces, generator excitation, automatic control, etc., and are also widely used in transportation, power systems, communication systems, energy systems, elevators, control cabinets, motors, large medical machinery, industrial machine tools, etc. field

Three-phase bridge rectifier bridge circuit features

The output voltage will be doubled (the two sets of half-wave circuits are connected in series), the ripple of the output voltage is relatively small, the utilization of the transformer is high, and the DC magnetization problem is not common, and it is more commonly used. Moreover, at any time, the two thyristors of different groups are turned on at the same time, thereby forming a current path.