AT408977T

Circuit arrangement for operating a high pressure discharge lamp

Abstract

A method for operating a high-voltage discharge lamp circuit device, comprising providing DC current to output capacitor (Cout) and DC/DC converter, the output capacitor (Cout) in the connecting bridge inverter (S1-S4). Relies on the output capacitor (Cout) are voltage amplitude, via the control circuit for a current of the DC/DC converter is provided; the control circuit for switch unit (Sd alternating) and an of the conducting. , Reference signal (Sref) unit special a DC current of the DC/DC converter is provided relies, and a peak detector) are) is output capacitor (Cout) for detecting the top end of, (μ P-TYPE) periodically or the reference signal (Sref) is a full bridge inverter (S1-S4) are switching time of the microprocessor. Therefore, a straight mitigation of resonance effect; the resonance effect occurred between the output capacitor (Cout) and such as lighting the impedance coil (Lign) bridge converter part and/or lamp.

Term

No projected expiry on record.

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02079686European Patent Office (EPO)A

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WO2004045255A2World Intellectual Property Organization (WIPO)A2
WO2004045256A1World Intellectual Property Organization (WIPO)A1
AU2003274614A1AustraliaA1
AU2003283779A1AustraliaA1
AU2003283779A8AustraliaA8
WO2004045255A3World Intellectual Property Organization (WIPO)A3
EP1563717A1European Patent Office (EPO)A1
EP1563718A2European Patent Office (EPO)A2
CN1711805AChinaA
CN1711806AChinaA
JP2006505911AJapanA
JP2006505918AJapanA
US2006108951A1United States of AmericaA1
US2006108998A1United States of AmericaA1
US7166971B2United States of AmericaB2
EP1563718B1European Patent Office (EPO)B1
AT408977TThis recordAustriaT
ATE408977T1AustriaT1
DE60323665D1GermanyD1
EP1563717B1European Patent Office (EPO)B1
AT425653TAustriaT
ATE425653T1AustriaT1
DE60326631D1GermanyD1
US7525261B2United States of AmericaB2
CN100566495CChinaC
CN100571480CChinaC
JP4491415B2JapanB2