CA2097463A1 - Variable Control, Current Sensing Ballast - Google Patents

Variable Control, Current Sensing Ballast

Info

Publication number
CA2097463A1
CA2097463A1 CA2097463A CA2097463A CA2097463A1 CA 2097463 A1 CA2097463 A1 CA 2097463A1 CA 2097463 A CA2097463 A CA 2097463A CA 2097463 A CA2097463 A CA 2097463A CA 2097463 A1 CA2097463 A1 CA 2097463A1
Authority
CA
Canada
Prior art keywords
voltages
power
ballast
lamps
electronic circuitry
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.)
Granted
Application number
CA2097463A
Other languages
French (fr)
Other versions
CA2097463C (en
Inventor
Guy J. Lestician
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.)
Lestician Ballast Inc
Original Assignee
Lestician Ballast 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 Lestician Ballast Inc filed Critical Lestician Ballast Inc
Publication of CA2097463A1 publication Critical patent/CA2097463A1/en
Application granted granted Critical
Publication of CA2097463C publication Critical patent/CA2097463C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3925—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by frequency variation
    • 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
    • H05B41/2855—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Inverter Devices (AREA)

Abstract

The present invention is directed to an electronic ballast device for the control of gas discharge lamps. The device is comprised of a housing unit with electronic circuitry and related components. The device accepts a.c.
power and rectifies it into various low d.c.
voltages to power the electronic circuitry, and to one or more high d.c. voltages to supply power for the lamps. Both the low d.c. voltages and the high d.c. voltages can be supplied directly, eliminating the need to rectify a.c. power. The device switches a d.c. voltage such that a high frequency signal is generated. Because of the choice of output transformers matched to the high frequency (about 38 kHz) and the ability to change frequency slightly to achieve proper current, the device can accept various lamp sizes without modification. The ballast can also dim the lamps by increasing the frequency. The device can be remotely controlled.
CA002097463A 1992-07-06 1993-06-01 Variable control, current sensing ballast Expired - Fee Related CA2097463C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US908,986 1992-07-06
US07/908,986 US5287040A (en) 1992-07-06 1992-07-06 Variable control, current sensing ballast

Publications (2)

Publication Number Publication Date
CA2097463A1 true CA2097463A1 (en) 1994-01-07
CA2097463C CA2097463C (en) 1999-10-12

Family

ID=25426467

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002097463A Expired - Fee Related CA2097463C (en) 1992-07-06 1993-06-01 Variable control, current sensing ballast

Country Status (8)

Country Link
US (2) US5287040A (en)
EP (1) EP0577975B1 (en)
JP (1) JPH06188090A (en)
AT (1) ATE164285T1 (en)
CA (1) CA2097463C (en)
DE (1) DE69317478T2 (en)
ES (1) ES2123017T3 (en)
MX (1) MX9303381A (en)

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US5680016A (en) * 1994-08-24 1997-10-21 Valcke; Francisco Javier Velasco Transformerless electronic ballast for gaseous discharge lamps
US5519289A (en) * 1994-11-07 1996-05-21 Jrs Technology Associates, Inc. Electronic ballast with lamp current correction circuit
US5757630A (en) * 1995-09-05 1998-05-26 Electronic Lighting, Inc. Control circuit with improved functionality for non-linear and negative resistance loads
US5990634A (en) * 1996-05-31 1999-11-23 Logic Laboratories, Inc. Dynamic range dimmer for gas discharge lamps
US6005354A (en) * 1996-10-21 1999-12-21 International Rectifier Corporation Ballast IC with shut-down function
US5821700A (en) * 1996-12-20 1998-10-13 Star Headlight & Lantern Co. Visual warning system for a railway vehicle
US6181066B1 (en) * 1997-12-02 2001-01-30 Power Circuit Innovations, Inc. Frequency modulated ballast with loosely coupled transformer for parallel gas discharge lamp control
US6040661A (en) * 1998-02-27 2000-03-21 Lumion Corporation Programmable universal lighting system
US6114814A (en) * 1998-12-11 2000-09-05 Monolithic Power Systems, Inc. Apparatus for controlling a discharge lamp in a backlighted display
US6900600B2 (en) 1998-12-11 2005-05-31 Monolithic Power Systems, Inc. Method for starting a discharge lamp using high energy initial pulse
US6104146A (en) * 1999-02-12 2000-08-15 Micro International Limited Balanced power supply circuit for multiple cold-cathode fluorescent lamps
US6175189B1 (en) * 1999-04-06 2001-01-16 Bruce Industries, Inc. Floating reference fault protection circuit for arc discharge lamp ballast
US6804129B2 (en) * 1999-07-22 2004-10-12 02 Micro International Limited High-efficiency adaptive DC/AC converter
US6259615B1 (en) * 1999-07-22 2001-07-10 O2 Micro International Limited High-efficiency adaptive DC/AC converter
US6608450B2 (en) 2000-06-13 2003-08-19 Lighttech Group, Inc. High frequency, high efficiency electronic lighting system with sodium lamp
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US6555972B1 (en) 2000-06-13 2003-04-29 Lighttech, Group, Inc. High frequency, high efficiency electronic lighting system with metal halide lamp
US6344717B1 (en) 2000-10-12 2002-02-05 Lighttech Group, Inc High frequency, high efficiency electronic lighting system with iodine and/or bromine-based metal halide high pressure discharge lamp
WO2003039204A1 (en) * 2001-10-27 2003-05-08 B & S Elektronische Geräte GmbH Evg units which may be wired in parallel due to lamp type
US7468878B2 (en) * 2001-12-21 2008-12-23 Koninklijke Philips Electronics N.V. Low voltage output for an electronic ballast
US7019468B2 (en) * 2001-12-21 2006-03-28 Koninklijke Philips Electronics N.V. Electronic ballast with ignition and operation control
US7515446B2 (en) * 2002-04-24 2009-04-07 O2Micro International Limited High-efficiency adaptive DC/AC converter
US20040217838A1 (en) * 2003-04-29 2004-11-04 Lestician Guy J. Coil device
US7348735B2 (en) * 2003-05-01 2008-03-25 Inventive Holdings Llc Lamp driver
US7612492B2 (en) * 2003-06-06 2009-11-03 Inventive Holdings Llc Lighting apparatus and system for decontamination
US7002306B2 (en) * 2003-10-31 2006-02-21 Honeywell International Inc. Lamp driver system with improved redundancy
US7394209B2 (en) * 2004-02-11 2008-07-01 02 Micro International Limited Liquid crystal display system with lamp feedback
US20070127179A1 (en) * 2005-12-05 2007-06-07 Ludjin William R Burnout protection switch
US9232607B2 (en) 2012-10-23 2016-01-05 Lutron Electronics Co., Inc. Gas discharge lamp ballast with reconfigurable filament voltage
US10141096B2 (en) 2014-03-04 2018-11-27 Basic Power, Inc. Energy saving device with inductive capacitive reactor
US9788395B2 (en) * 2014-11-20 2017-10-10 Luxor Scientific, Inc Visible and nonvisible light bulb driver and system
US9788402B2 (en) * 2015-03-23 2017-10-10 Luxor Scientific, Inc Enhanced variable control, current sensing drivers with zeta scan

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Also Published As

Publication number Publication date
MX9303381A (en) 1994-06-30
ATE164285T1 (en) 1998-04-15
DE69317478D1 (en) 1998-04-23
EP0577975A1 (en) 1994-01-12
USRE35994E (en) 1998-12-15
CA2097463C (en) 1999-10-12
ES2123017T3 (en) 1999-01-01
DE69317478T2 (en) 1998-10-01
EP0577975B1 (en) 1998-03-18
US5287040A (en) 1994-02-15
JPH06188090A (en) 1994-07-08

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Legal Events

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EEER Examination request
MKLA Lapsed