How many diodes are required for a three-phase bridge rectifier circuit 1

Three phase bridge rectifier circuit is a common power electronic circuit, mainly used in scenarios where AC power is converted to DC power. This circuit uses three-phase power supply, which can provide a more stable and efficient DC power supply than single-phase rectification circuits.

The basic components of a three-phase bridge rectifier circuit include six diodes, a three-phase AC power supply, and a load. These six diodes are connected in a bridge structure, hence the name three-phase bridge rectifier circuit. During each cycle, there will always be two EP4SGX110HF35C3N diodes conducting, converting the AC power supply voltage into DC voltage to supply to the load.diode

The specific working principle is as follows: When the phase sequence of the AC power supply voltage is A-B-C, assuming that the voltage of phase A is the highest, the diode from phase A to the load will conduct. At the same time, due to the lowest voltage of phase C, the diode from phase C to the load will also conduct. In this way, the voltage of phase A will be supplied to the load through these two conducting diodes. When the phase sequence of the AC power supply voltage changes, such as to B-C-A, two other different diodes will conduct to ensure continuous power supply. In this way, through the alternating conduction of six diodes, the three-phase bridge rectifier circuit can continuously and stably convert the AC power supply voltage into DC voltage.diode