Nova Patents
ATE320105T1

Synthetic ripple regulator

Abstract

A synthetic ripple regulator for a DC-DC converter generates an auxiliary voltage waveform that effectively replicates the waveform ripple current through an output inductor, and uses the auxiliary voltage waveform to control toggling of a hysteretic comparator. In a non-limiting implementation, a transconductance amplifier monitors the voltage across the inductor, and supplies an inductor voltage-representative current to a ripple waveform capacitor, so as to produce the auxiliary voltage waveform. Using the replicated inductor current for ripple regulation results in low output ripple, input voltage feed forward, and simplified compensation.

Term

Term ended

Projected expiry passed 11 September 2022, 4 years ago.

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49 members in 9 offices

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DocumentOfficeKindDate
35268302United States of AmericaP
23678702United States of AmericaA

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US2003142519A1United States of AmericaA1
WO03065558A2World Intellectual Property Organization (WIPO)A2
WO03065558A3World Intellectual Property Organization (WIPO)A3
WO03065558A9World Intellectual Property Organization (WIPO)A9
TW578360BTaiwan Province of ChinaB
US2004070382A1United States of AmericaA1
KR20040077798ARepublic of KoreaA
US6791306B2United States of AmericaB2
EP1472777A2European Patent Office (EPO)A2
US2005001597A1United States of AmericaA1
US2005017703A1United States of AmericaA1
EP1519473A2European Patent Office (EPO)A2
EP1519474A2European Patent Office (EPO)A2
CN1603996AChinaA
KR20050031382ARepublic of KoreaA
KR20050031440ARepublic of KoreaA
TW200513818ATaiwan Province of ChinaA
JP2005110498AJapanA
TW200515114ATaiwan Province of ChinaA
JP2005124389AJapanA
CN1623269AChinaA
US6922044B2United States of AmericaB2
JP2005525774AJapanA
CN1702585AChinaA
TW200539555ATaiwan Province of ChinaA
TWI248249BTaiwan Province of ChinaB
EP1472777B1European Patent Office (EPO)B1
AT320105TAustriaT
ATE320105T1This recordAustriaT1
US7019502B2United States of AmericaB2
DE60209768D1GermanyD1
KR100614841B1Republic of KoreaB1
US7132820B2United States of AmericaB2
TWI269133BTaiwan Province of ChinaB
TWI269134BTaiwan Province of ChinaB
KR100716107B1Republic of KoreaB1
KR100716125B1Republic of KoreaB1
JP3919116B2JapanB2
JP3981083B2JapanB2
JP3981110B2JapanB2
EP1519473A3European Patent Office (EPO)A3
EP1519474A3European Patent Office (EPO)A3
CN100394342CChinaC
CN100422897CChinaC
CN100454738CChinaC
EP1519474B1European Patent Office (EPO)B1
DE602004024018D1GermanyD1
USRE43414EUnited States of AmericaE
EP1519473B1European Patent Office (EPO)B1