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  Patent History
  • Application
    US 08/787295 1997-01-24
  • Granted
    US 5748457 1998-05-05

granted patent: Family of zero voltage switching DC to DC converters

TitleFamily of zero voltage switching DC to DC converters
Granted PatentUS 5748457
Granted Date1998-05-05
Priority Date1997-01-24 US 08/787295
Inventors
Issue Date1998
Citation
US Patent US 5748457. Washington, DC: US Patent and Trademark Office (USPTO), 1998 How to Cite?
AbstractA family of power converter is invented. Each of these converter accomplishes zero voltage switching to minimize switching losses. The basic embodiment comprises of two switches connected across the input source, a series combination of inductor and capacitor is connected to the node joining the two switches. The switches are driven by asymmetrical driving pulses with variable duty cycle. The output comprises of an inductor and capacitor filter and diode combinations. This arrangement minimise output ripple. In order to further reduce dissipation switches are connected in parallel with output diodes and these switches operation in synchronization with the main switches. The basic embodiment can be modified to provide converter with negative output or boost output. The embodiment can also be modified for isolated converter with transformer in both the half bridge and full bridge circuit.
Persistent Identifierhttp://hdl.handle.net/10722/210533
References

 

DC FieldValueLanguage
dc.date.accessioned2015-06-17T07:04:11Z-
dc.date.available2015-06-17T07:04:11Z-
dc.date.issued1998-
dc.identifier.citationUS Patent US 5748457. Washington, DC: US Patent and Trademark Office (USPTO), 1998-
dc.identifier.urihttp://hdl.handle.net/10722/210533-
dc.description.abstractA family of power converter is invented. Each of these converter accomplishes zero voltage switching to minimize switching losses. The basic embodiment comprises of two switches connected across the input source, a series combination of inductor and capacitor is connected to the node joining the two switches. The switches are driven by asymmetrical driving pulses with variable duty cycle. The output comprises of an inductor and capacitor filter and diode combinations. This arrangement minimise output ripple. In order to further reduce dissipation switches are connected in parallel with output diodes and these switches operation in synchronization with the main switches. The basic embodiment can be modified to provide converter with negative output or boost output. The embodiment can also be modified for isolated converter with transformer in both the half bridge and full bridge circuit.-
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dc.relation.isreferencedbyUS 6487094 (B1) 2002-11-26-
dc.relation.isreferencedbyUS 6452814 (B1) 2002-09-17-
dc.relation.isreferencedbyUS 5844787 (A) 1998-12-01-
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dc.relation.isreferencedbyUS 2002140371 (A1) 2002-10-03 -
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dc.relation.isreferencedbyUS 2004183469 (A1) 2004-09-23 -
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dc.relation.isreferencedbyUS 2001026458 (A1) 2001-10-04 -
dc.relation.isreferencedby U S6426888 (B2) 2002-07-30-
dc.relation.isreferencedbyUS 2004160794 (A1) 2004-08-19 -
dc.relation.isreferencedby U S6804129 (B2) 2004-10-12-
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dc.relation.isreferencedby U S6949912 (B2) 2005-09-27-
dc.relation.isreferencedbyUS 2002125863 (A1) 2002-09-12 -
dc.relation.isreferencedby U S6501234 (B2) 2002-12-31-
dc.relation.isreferencedbyUS 2004178781 (A1) 2004-09-16 -
dc.relation.isreferencedby U S7200017 (B2) 2007-04-03-
dc.relation.isreferencedbyUS 2004130309 (A1) 2004-07-08 -
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dc.rightsCreative Commons: Attribution 3.0 Hong Kong License for public patent documents-
dc.titleFamily of zero voltage switching DC to DC converters-
dc.typePatent-
dc.identifier.authorityPONG, MAN HAY=rp00163-
dc.description.naturepublished_or_final_version-
dc.contributor.inventorPONG, MAN HAY-
dc.contributor.inventorPOON, FRANKI NGAI KIT-
patents.identifier.applicationUS 08/787295-
patents.identifier.grantedUS 5748457-
patents.description.assigneePOON, FRANKI NGAI KIT, ; PONG, MAN HAY-
patents.description.countryUnited States of America -
patents.date.granted1998-05-05-
dc.relation.referencesUS 4814962 (A) 1989-03-21-
dc.relation.referencesUS 4860184 (A) 1989-08-22-
dc.relation.referencesUS 5057986 (A) 1991-10-15-
dc.relation.referencesUS 5615093 (A) 1997-03-25-
dc.relation.referencesUS 5638260 (A) 1997-06-10-
dc.relation.referencesUS 5402329 (A) 1995-03-28-
dc.relation.referencesUS 5539630 (A) 1996-07-23-
patents.identifier.hkutechidEEE-1998-00041-1-
patents.date.application1997-01-24-
patents.date.priority1997-01-24 US 08/787295-
patents.description.ccus-
patents.description.kindA-
patents.typePatent_granted-

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