CA2399747A1 - Ballast a circuit de protection destine a prevenir le demarrage de l'inverseur en situation de defaut a la terre - Google Patents

Ballast a circuit de protection destine a prevenir le demarrage de l'inverseur en situation de defaut a la terre Download PDF

Info

Publication number
CA2399747A1
CA2399747A1 CA 2399747 CA2399747A CA2399747A1 CA 2399747 A1 CA2399747 A1 CA 2399747A1 CA 2399747 CA2399747 CA 2399747 CA 2399747 A CA2399747 A CA 2399747A CA 2399747 A1 CA2399747 A1 CA 2399747A1
Authority
CA
Canada
Prior art keywords
coupled
output
inverter
circuit
input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA 2399747
Other languages
English (en)
Inventor
Himamshu V. Prasad
Sameer Sodhi
John G. Konopka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram Sylvania Inc
Original Assignee
Osram Sylvania Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osram Sylvania Inc filed Critical Osram Sylvania Inc
Publication of CA2399747A1 publication Critical patent/CA2399747A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Inverter Devices (AREA)
CA 2399747 2001-09-28 2002-08-27 Ballast a circuit de protection destine a prevenir le demarrage de l'inverseur en situation de defaut a la terre Abandoned CA2399747A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96719201A 2001-09-28 2001-09-28
US09/967,192 2001-09-28

Publications (1)

Publication Number Publication Date
CA2399747A1 true CA2399747A1 (fr) 2003-03-28

Family

ID=25512438

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2399747 Abandoned CA2399747A1 (fr) 2001-09-28 2002-08-27 Ballast a circuit de protection destine a prevenir le demarrage de l'inverseur en situation de defaut a la terre

Country Status (1)

Country Link
CA (1) CA2399747A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012249451A (ja) * 2011-05-30 2012-12-13 Panasonic Corp 電力変換装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012249451A (ja) * 2011-05-30 2012-12-13 Panasonic Corp 電力変換装置

Similar Documents

Publication Publication Date Title
US5945788A (en) Electronic ballast with inverter control circuit
US5770925A (en) Electronic ballast with inverter protection and relamping circuits
US5869935A (en) Electronic ballast with inverter protection circuit
US5883473A (en) Electronic Ballast with inverter protection circuit
US7187137B2 (en) Ballast with output ground-fault protection
US5767631A (en) Power supply and electronic ballast with low-cost inverter bootstrap power source
US6720739B2 (en) Ballast with protection circuit for quickly responding to electrical disturbances
EP1286574B1 (fr) Ballast avec préchauffage efficace des filaments et protection contre les défauts de lampe
US7348734B2 (en) Method for protecting a ballast from an output ground-fault condition
US5394062A (en) Lamp ballast circuit with overload detection and ballast operability indication features
JP3918151B2 (ja) 放電灯点灯回路
KR20090058023A (ko) 아크 보호 회로를 갖는 안정기
US7489531B2 (en) Inverter with improved overcurrent protection circuit, and power supply and electronic ballast therefor
US6867553B2 (en) Continuous mode voltage fed inverter
US6919695B2 (en) Overvoltage protection for hid lamp ballast
US6657400B2 (en) Ballast with protection circuit for preventing inverter startup during an output ground-fault condition
US5869937A (en) High efficiency electronic ballast
CA2429430C (fr) Ballast a circuit de protection contre les defauts de mise a la terre de la lampe
US6756746B2 (en) Method of delaying and sequencing the starting of inverters that ballast lamps
EP1524886B1 (fr) Ballast avec un circuit de détection de défaut adaptable à la charge
US5982109A (en) Electronic ballast with fault-protected series resonant output circuit
CA2399747A1 (fr) Ballast a circuit de protection destine a prevenir le demarrage de l'inverseur en situation de defaut a la terre
CA2429424A1 (fr) Ballast a circuit de protection qui empeche le demarrage du convertisseur en cas de mise a la masse defectueuse de la charge
US20030090216A1 (en) Lighting ballast with reverse current flow protection

Legal Events

Date Code Title Description
FZDE Dead