QUASI ACTIVE POWER FACTOR CORRECTION CIRCUIT AND METHOD FOR HIGH POWER FACTOR AND LOW TOTAL HARMONIC DISTORTION

• Main Authors: SUN, JIANZHON, WENG, DAFENG, WEI, QICUI
• Format: Patent
• Language: Chinese; English; French
• Published: 14.01.2016
• 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; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS,e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USERAPPLICATIONS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

A quasi active power factor correction circuit for high power factor and low total harmonic distortion, comprising: a rectifier (31), a subsequent power switch converter (2) and a nonlinear voltage controlled circuit (3). The nonlinear voltage controlled circuit comprises: an input current correction branch circuit (31), an output current branch circuit (32) and a resonant capacitor (CR). The output current branch circuit and the resonant capacitor are in parallel connection with the input end of the subsequent power switch converter. The input current correction branch circuit is in serial connection with the output current branch circuit and is then in parallel connection with the output end of the rectifier. L'invention concerne un circuit de correction de facteur puissance quasi active pour un facteur de puissance élevé et une distorsion harmonique totale faible, qui comprend : un redresseur (31), un convertisseur (2) de commutateur d'alimentation ultérieur et un circuit commandé (3) à tension non linéair