Power factor correction converter and switching power supply

The invention provides a power factor correction converter which comprises a coupling inductor and N-phase booster circuits, the N-phase booster circuits are connected in parallel, the coupling inductor comprises an inductor string and N main inductors, and the N main inductors correspond to the N-p...

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Bibliographische Detailangaben
Hauptverfasser:	HE WEI, ZHANG BIN, ZHU CONG, CHEN CHANGQING, ZUO ZHILING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	The invention provides a power factor correction converter which comprises a coupling inductor and N-phase booster circuits, the N-phase booster circuits are connected in parallel, the coupling inductor comprises an inductor string and N main inductors, and the N main inductors correspond to the N-phase booster circuits respectively. The inductor string comprises an independent coupling inductor and at least one auxiliary inductor which are connected in series, two ends of the inductor string are closed and are electrically connected with a reference signal end, a first end of the main inductor is electrically connected with one end of a power supply or one end of a rectifier bridge, and a second end of the main inductor is electrically connected with a corresponding booster circuit. The at least one main inductor is coupled with the at least one auxiliary inductor, the main inductor and the auxiliary inductor which correspond to each other are wound on the same magnetic core, and N is an integer greater than