Passive lossless power supply power factor correction circuit

• Main Authors: YAN SHIBO, ZHANG TIANYU, ZHANG JUNKAI, LI KUN, SONG MING, QIAO JINGYI, ZHANG QIANG, ZHANG LIFEI, LI SUWEN, YAO ZHENFU, LI BO
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2022
• 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 utility model provides a passive lossless power supply power factor correction circuit comprising an AC power supply, a rectifier bridge, a first inductor, a second inductor, a third inductor, a fourth inductor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a first capacitor, a second capacitor, a third capacitor, a first switch tube, a second switch tube and a load. The utility model provides a passive lossless power supply power factor correction circuit for a railway high-frequency switching power supply, which adopts a passive device to enhance the reliability of the circuit, and reduces the impact stress received by the circuit device in an on-off state through a reasonable compensation absorption circuit, thereby playing a good role in protecting the whole circuit. 本实用新型提供一种无源无损电源功率因数校正电路，包括：交流电源、整流桥、第一电感、第二电感、第三电感、第四电感、第一二极管、第二二极管、第三二极管、第四二极管、第五二极管、第一电容、第二电容、第三电容、第一开关管、第二开关管和负载。本实用新型提供一种针对于铁路高频开关电源的无源无损电源功率因数校正电路，采用无源器件增强电路的可靠性，并通过合理的补偿吸收电路减小在开闭状态下电路器件所收到的冲击应力，对整个电路起到