File Download
  Patent History
  • Application
    US 08/515049 1995-08-14
  • Granted
    US 5657212 1997-08-12
  Patent Family

granted patent: Capacitor Coupled Converter

TitleCapacitor Coupled Converter
Granted PatentUS 5657212
Granted Date1997-08-12
Priority Date1995-08-14 US 08/515049
Inventors
Issue Date1997
Citation
US Patent 5657212. Washington, DC: US Patent and Trademark Office (USPTO), 1997 How to Cite?
AbstractThe Capacitor Coupled Converter (Ccc) Is A Dc-Dc Converter Which Produce A Dc Source As The Output. It Has Two Input Terminals For Connection To A Dc Voltage Source, Two Output Terminals For Connection To A Load, And A Plurality Of Circuit Control Terminals For Receiving A Plurality Of Control Waveforms. The Basic Elements Of The Ccc Are Two Switches Connected In Series Across The Input Terminals. An Inductor In Series With A Transformer Is Connected To The Junction Of The Two Switches. Two Capacitors With Parallel Diodes Are Connected Across The Input Dc Voltage Source. The Junction Between The Two Capacitors Is Connected To One Of The Primary Terminal Of The Transformer. The Secondary Terminals Of The Transformer Is Connected To An Ac-Dc Converter, Typically Two Diodes Which Rectify The Ac To Dc. The Dc Is Then Filtered By An Inductor-Capacitor Filter. During Operation, The Two Switches Periodically And Alternately Open And Close. The Two Capacitors Across The Input Terminals Are Charged And Discharged Alternately By A Current Through The Primary Circuit. Triangular Waveform Is Produced Across The Transformer Which Transfer Power To The Output. The Power Output Is Limited Inherently By The Charging Process. The Ccc Also Enables Zero Voltage Switching. A Switch Is Closed Only When A Near-Zero Voltage Exists Across The Switch. In Order To Bring About This Result, A Diode And Capacitor Are Connected In Parallel With Each Switch. When One Switch Opens, The Other Switch Closes Usually When There Is Less Than 0.7 Volts Across The Switch. The Time Period During Which The Voltage Across The Switch To Be Closed Is Less Than 0.7 Volts Is A Function Of The Resonant Frequency Of The Capacitance Associated With The Switch To Be Closed And The Inductance Associated With The Primary Circuit. Zero Voltage Switching Reduce Loss Associated With The Switches.
Persistent Identifierhttp://hdl.handle.net/10722/99850
References

 

DC FieldValueLanguage
dc.date.accessioned2010-09-25T18:46:44Z-
dc.date.available2010-09-25T18:46:44Z-
dc.date.issued1997-
dc.identifier.citationUS Patent 5657212. Washington, DC: US Patent and Trademark Office (USPTO), 1997en_HK
dc.identifier.urihttp://hdl.handle.net/10722/99850-
dc.description.abstractThe Capacitor Coupled Converter (Ccc) Is A Dc-Dc Converter Which Produce A Dc Source As The Output. It Has Two Input Terminals For Connection To A Dc Voltage Source, Two Output Terminals For Connection To A Load, And A Plurality Of Circuit Control Terminals For Receiving A Plurality Of Control Waveforms. The Basic Elements Of The Ccc Are Two Switches Connected In Series Across The Input Terminals. An Inductor In Series With A Transformer Is Connected To The Junction Of The Two Switches. Two Capacitors With Parallel Diodes Are Connected Across The Input Dc Voltage Source. The Junction Between The Two Capacitors Is Connected To One Of The Primary Terminal Of The Transformer. The Secondary Terminals Of The Transformer Is Connected To An Ac-Dc Converter, Typically Two Diodes Which Rectify The Ac To Dc. The Dc Is Then Filtered By An Inductor-Capacitor Filter. During Operation, The Two Switches Periodically And Alternately Open And Close. The Two Capacitors Across The Input Terminals Are Charged And Discharged Alternately By A Current Through The Primary Circuit. Triangular Waveform Is Produced Across The Transformer Which Transfer Power To The Output. The Power Output Is Limited Inherently By The Charging Process. The Ccc Also Enables Zero Voltage Switching. A Switch Is Closed Only When A Near-Zero Voltage Exists Across The Switch. In Order To Bring About This Result, A Diode And Capacitor Are Connected In Parallel With Each Switch. When One Switch Opens, The Other Switch Closes Usually When There Is Less Than 0.7 Volts Across The Switch. The Time Period During Which The Voltage Across The Switch To Be Closed Is Less Than 0.7 Volts Is A Function Of The Resonant Frequency Of The Capacitance Associated With The Switch To Be Closed And The Inductance Associated With The Primary Circuit. Zero Voltage Switching Reduce Loss Associated With The Switches.en_HK
dc.languageengen_HK
dc.relation.isreferencedbyUS 2010246231 (A1) 2010-09-30en_HK
dc.relation.isreferencedbyUS 7869226 (B2) 2011-01-11en_HK
dc.relation.isreferencedbyUS 2010090533 (A1) 2010-04-15en_HK
dc.relation.isreferencedbyUS 8097981 (B2) 2012-01-17en_HK
dc.relation.isreferencedbyUS 2007236965 (A1) 2007-10-11en_HK
dc.relation.isreferencedbyUS 7606053 (B2) 2009-10-20en_HK
dc.relation.isreferencedbyUS 2006023474 (A1) 2006-02-02en_HK
dc.relation.isreferencedbyUS 7154763 (B2) 2006-12-26en_HK
dc.relation.isreferencedbyUS 2005225280 (A1) 2005-10-13en_HK
dc.relation.isreferencedbyUS 7030587 (B2) 2006-04-18en_HK
dc.relation.isreferencedbyWO 0159917 (A1) 2001-08-16en_HK
dc.relation.isreferencedbyWO 0051227 (A1) 2000-08-31en_HK
dc.relation.isreferencedbyUS 6046914 (A) 2000-04-04en_HK
dc.relation.isreferencedbyUS 6016258 (A) 2000-01-18en_HK
dc.relation.isreferencedbyUS 6271706 (B1) 2001-08-07en_HK
dc.relation.isreferencedbyUS 5923152 (A) 1999-07-13en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License For Public Patent Documents-
dc.titleCapacitor Coupled Converteren_HK
dc.typePatenten_HK
dc.identifier.emailPong, MH: mhp@eee.hku.hken_HK
dc.identifier.authorityPong, MH=rp00163en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.hkuros37118en_HK
dc.contributor.inventorPoon, NKen_HK
dc.contributor.inventorPong, MHen_HK
patents.identifier.applicationUS 08/515049en_HK
patents.identifier.grantedUS 5657212en_HK
patents.description.assigneePoon, Franki N. K, ; Pong, Bryan M. Hen_HK
patents.description.countryUnited States of Americaen_HK
patents.date.granted1997-08-12en_HK
dc.relation.referencesUS 5325283 (A) 1994-06-28en_HK
dc.relation.referencesUS 5500792 (A) 1996-03-19en_HK
dc.relation.referencesUS 5539630 (A) 1996-07-23en_HK
patents.identifier.hkutechidEEE-1995-00040-1-
patents.date.application1995-08-14en_HK
patents.date.priority1995-08-14 US 08/515049en_HK
patents.description.ccUSen_HK
patents.relation.familyUS 5657212 (A) 1997-08-12en_HK
patents.description.kindAen_HK
patents.typePatent_granteden_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats