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Single-stage input current shaping technique with voltage-doubler rectifier front-end

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dc.contributor.assigneeVirginia Tech Intellectual Properties, Inc.en
dc.contributor.assigneeDelta Electronics, Inc.en
dc.contributor.inventorLee, Fred C.en
dc.contributor.inventorJovanovic, Milan M.en
dc.contributor.inventorHuber, Laszloen
dc.contributor.inventorZhang, Jindong Henryen
dc.date.accessed2016-08-19en
dc.date.accessioned2016-08-24T17:54:12Zen
dc.date.available2016-08-24T17:54:12Zen
dc.date.filed1998-12-19en
dc.date.issued2000-11-14en
dc.description.abstractA single-stage input-current-shaping (S.sup.2 ICS) converter of the present invention integrates a voltage-doubler-rectifier front-end with a DC/DC output stage. Two families of voltage-doubler S.sup.2 ICS converters are disclosed. In one family, a 2-terminal dither source is provided between a boost inductor and a common input terminal of a storage capacitor and the DC/DC output stage. The 2-terminal dither source includes two paths connected in parallel: a first path for charging and a second path for discharging the boost inductor at a high frequency (HF). In the other family, a 3-terminal dither source includes a third terminal coupled to a pulsating node of the DC/DC output stage. In the 3-terminal dither source, the HF charging path of the boost inductor is coupled between the boost inductor and the pulsating node of the DC/DC output stage, while the HF discharging path of the boost inductor is coupled between the boost inductor and the common input terminal of the storage capacitor and the DC/DC output stage. Due to the voltage-doubler-rectifier front-end, reduction of line-current harmonics can be achieved with a higher conversion efficiency, as compared to a corresponding S.sup.2 ICS converter with a conventional full-bridge rectifier. In addition, a converter of the present invention requires storage capacitors of a lower voltage rating and a smaller total capacitance than the conventional S.sup.2 ICS counterpart. The present invention thereby reduces the size and the cost of the power supply.en
dc.format.mimetypeapplication/pdfen
dc.identifier.applicationnumber9215758en
dc.identifier.patentnumber6147882en
dc.identifier.urihttp://hdl.handle.net/10919/72427en
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/82/478/061/0.pdfen
dc.language.isoen_USen
dc.publisherUnited States Patent and Trademark Officeen
dc.subject.cpcH02M1/4258en
dc.subject.cpcH02M1/10en
dc.subject.cpcY02B70/126en
dc.subject.uspc363/39en
dc.subject.uspcother363/17en
dc.subject.uspcother363/20en
dc.subject.uspcother363/61en
dc.subject.uspcother363/143en
dc.titleSingle-stage input current shaping technique with voltage-doubler rectifier front-enden
dc.typePatenten
dc.type.dcmitypeTexten
dc.type.patenttypeutilityen

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