Three-phase rectifier with wide output voltage range and low ripple

• Main Authors: WANG RONGPEI, YAN JINGBIN, GE MENGNA
• Format: Patent
• Language: Chinese; English
• Published: 24.01.2023
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention relates to the technical field of rectifiers, in particular to a three-phase voltage source rectifier. The rectifier based on the three-phase voltage source comprises an AC voltage source module, a Y-type rectification module, a low-ripple Buck transformation module, an MOSFET control module, a Buck control module and a load. The circuit has the characteristics of wide output voltage range and low-ripple variable voltage output, and is very wide in application prospect. Compared with a traditional rectifier, the Y-shaped rectifier structure is applied, wide-range voltage output is obtained, so that the rectifier has better performance in the field of electric automobiles, the rectifier can be compatible with voltage levels of various nominal batteries, meanwhile, low ripple of output voltage and smoother output waveform are achieved through the buck DC-DC conversion module, and the output voltage is more stable. Ripple waves are smaller, and the device is safer, more stable, more practical and v