Flexible multi-level bridgeless power factor correction converter and modulation method

• Main Authors: DING WENFANG, JIANG YUNHAO, XI ZIQIANG, GONG LI
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2017
• 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 present invention relates to a flexible multi-level bridgeless power factor correction converter and a modulation method. The converter comprises a AC inductor part, an electric power electronic switch network and a DC capacitor part, the anode of a diode D1 is connected with the drain of a switching tube S1, and the source of the switching tube S1 is connected with the drain of a switching tube S2; the anode of a diode D2 is connected with the drain of a switching tube S3, the source of the switching tube S3 is connected with the drain of a switching tube S4, and the source of a switching tube S5 is connected with the source of the switching tube S3; the source of a switching tube S6 is connected with the source of the switching tube S1, the cathode of the diode D1 is connected with the cathode of the diode D2, the source of the switching tube S2 is connected with the source of the switching tube S4, and the drain of the switching tube S5 is connected with the drain of the switching tube S6. The flexible