Double-input high-reliability Cuk DC-DC converter

The invention discloses a double-input high-reliability Cuk DC-DC converter. The converter comprises two DC input sources, a basic Cuk converter, a basic Sepic converter, m forward expansion units and n backward voltage expansion units. Each of the forward expansion units and the reverse expansion u...

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Bibliographische Detailangaben
Hauptverfasser:	ZHI SHUBO, LIU JIAXIN, ZHAO YUHUI, ZHOU SHENGQI, ZHU BINXIN
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 discloses a double-input high-reliability Cuk DC-DC converter. The converter comprises two DC input sources, a basic Cuk converter, a basic Sepic converter, m forward expansion units and n backward voltage expansion units. Each of the forward expansion units and the reverse expansion units is composed of an inductor, two capacitors and a diode, and the input and output gain of the converter and the voltage stress of a switching device can be adjusted by adjusting the number of the forward expansion units and the number of the reverse expansion units. The converter has the characteristics of simple control and drive circuit, wide input and output voltage regulation range and high reliability; when one switching tube is damaged, other circuits can work normally; and the converter is suitable for application occasions where the change range of output input voltage and output voltage is large, two power supplies are needed to supply power at the same time and the requirement on reliability is high.