AC-DC converter and control method of AC-DC converter

The invention provides an AC-DC converter and a control method of the AC-DC converter, the AC-DC converter comprises a totem-pole bridgeless power factor correction circuit, a forward DC-DC conversion circuit and a digital control system, the totem-pole bridgeless power factor correction circuit is...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHU YONGQIANG, YAN QUANFENG, ZHANG YAN, YIN TONGHUAN, ZHAI ZHIWEI, LEI LONG
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 an AC-DC converter and a control method of the AC-DC converter, the AC-DC converter comprises a totem-pole bridgeless power factor correction circuit, a forward DC-DC conversion circuit and a digital control system, the totem-pole bridgeless power factor correction circuit is connected with the forward DC-DC conversion circuit, and the digital control system is connected with the totem-pole bridgeless power factor correction circuit. And the totem-pole bridgeless power factor correction circuit and the forward DC-DC conversion circuit are respectively controlled by a first control subsystem and a second control subsystem in the digital control system. Wherein the totem-pole bridgeless power factor correction circuit is a bridgeless power factor correction circuit, and the totem-pole bridgeless power factor correction circuit can play a role similar to synchronous rectification while performing power factor correction by controlling on and off of a switching tube in the totem-pole bridge