File Download

There are no files associated with this item.

  Patent History
  • Application
    HK20030106802 2003-09-22
  • Publication
    HK 1054627 2010-08-27

published patent: METHOD AND APPARATUS FOR IMPROVING STABILITY AND DYNAMIC RESPONSE OF HALF- BRIDGE CONVERTER OF A SWITCH POWER SUPPLY

TitleMETHOD AND APPARATUS FOR IMPROVING STABILITY AND DYNAMIC RESPONSE OF HALF- BRIDGE CONVERTER OF A SWITCH POWER SUPPLY
Priority Date2001-09-20 US 09/960435
Inventors
Issue Date2002
Citation
Hong Kong Patent HK 1054627. Hong Kong, PRC: Intellectual Property Office of the Governmemnt of the Hong Kong Special Administration Region, 2002 How to Cite?
AbstractTypically, in a half-bridge converter A DC blocking capacitor and inductance on the primary side combines with the inductor and capacitor on the secondary side to produce complicated converter dynamic characteristics that make converter stabilization difficult. The disclosed system and methods enable converter stabilization by modulating, as a function of the voltage across the DC blocking capacitor, the feedback output error signal or the ramp signal for the PWM controller of the converter. The modulation removes the effect of the resonant circuit formed by the primary inductance and the DC blocking capacitor in the output voltage regulation loop. Further adjustment of the duty cycle of the power switches enables keeping the output voltage undisturbed by voltage variation across the DC blocking capacitor. Since, this inner compensation loop results in the voltage regulation feedback loop respond to only the output inductor-capacitor filter, the transfer function of this loop displays second order characteristics from the fourth order. Hence, stability issues are simplified to conventional second order compensation network whereby the converter can be optimized for fast transient response.
Persistent Identifierhttp://hdl.handle.net/10722/140300

 

DC FieldValueLanguage
dc.date.accessioned2011-09-23T06:09:50Z-
dc.date.available2011-09-23T06:09:50Z-
dc.date.issued2002-
dc.identifier.citationHong Kong Patent HK 1054627. Hong Kong, PRC: Intellectual Property Office of the Governmemnt of the Hong Kong Special Administration Region, 2002-
dc.identifier.urihttp://hdl.handle.net/10722/140300-
dc.description.abstractTypically, in a half-bridge converter A DC blocking capacitor and inductance on the primary side combines with the inductor and capacitor on the secondary side to produce complicated converter dynamic characteristics that make converter stabilization difficult. The disclosed system and methods enable converter stabilization by modulating, as a function of the voltage across the DC blocking capacitor, the feedback output error signal or the ramp signal for the PWM controller of the converter. The modulation removes the effect of the resonant circuit formed by the primary inductance and the DC blocking capacitor in the output voltage regulation loop. Further adjustment of the duty cycle of the power switches enables keeping the output voltage undisturbed by voltage variation across the DC blocking capacitor. Since, this inner compensation loop results in the voltage regulation feedback loop respond to only the output inductor-capacitor filter, the transfer function of this loop displays second order characteristics from the fourth order. Hence, stability issues are simplified to conventional second order compensation network whereby the converter can be optimized for fast transient response.en_HK
dc.languageengen_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License For Public Patent Documents-
dc.titleMETHOD AND APPARATUS FOR IMPROVING STABILITY AND DYNAMIC RESPONSE OF HALF- BRIDGE CONVERTER OF A SWITCH POWER SUPPLYen_HK
dc.typePatenten_US
dc.identifier.emailPong, MH: mhp@eee.hku.hken_US
dc.identifier.authorityPong, MH=rp00163en_US
dc.identifier.hkuros193574en_US
dc.contributor.inventorJOE CHUI PONG LIUen_HK
dc.contributor.inventorFRANKI NGAI KIT POONen_HK
dc.contributor.inventorMAN HAY PONGen_HK
patents.identifier.applicationHK20030106802en_HK
patents.description.assigneeUNIV HONG KONG [HK]en_HK
patents.description.countryHong Kong (S.A.R.)en_US
patents.date.publication2010-08-27en_HK
patents.identifier.hkutechidEEE-2001-00051-2-
patents.date.application2003-09-22en_HK
patents.date.priority2001-09-20 US 09/960435en_HK
patents.description.ccHKen_HK
patents.identifier.publicationHK 1054627en_HK
patents.relation.familyCN 1405963 (A) 2003-03-26en_HK
patents.relation.familyDE 60216683 (T2) 2007-04-12en_HK
patents.relation.familyEP 1296442 (A2) 2003-03-26en_HK
patents.relation.familyUS 6396716 (B1) 2002-05-28en_HK
patents.description.kindA1en_HK
patents.typePatent_publisheden_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats