Circuit drawing method

Its circuit drawing method is composed of three circuits in parallel, two chips in each channel are connected in series and connected by two chips in the middle as a three-phase three-terminal input, and the three-group circuit unified output terminal equipotential connection is the three-phase rectifier bridge. The positive pole, 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

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

Circuit characteristics

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.