BR0103776A - Circuito de lastro de amortecimento de luz - Google Patents

Circuito de lastro de amortecimento de luz

Info

Publication number
BR0103776A
BR0103776A BR0103776-5A BR0103776A BR0103776A BR 0103776 A BR0103776 A BR 0103776A BR 0103776 A BR0103776 A BR 0103776A BR 0103776 A BR0103776 A BR 0103776A
Authority
BR
Brazil
Prior art keywords
ballast circuit
light damping
damping ballast
lamp
light
Prior art date
Application number
BR0103776-5A
Other languages
English (en)
Inventor
Hubertus Notohamiprodjo
Thomas Marinelli
Original Assignee
Tridonic Usa 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 Tridonic Usa Inc filed Critical Tridonic Usa Inc
Publication of BR0103776A publication Critical patent/BR0103776A/pt

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
    • H05B41/2821—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 by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2822—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 by means of a single-switch converter or a parallel push-pull converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

"CIRCUITO DE LASTRO DE AMORTECIMENTO DE LUZ". A presente invenção refere-se a detecção e regulação precisas da corrente de lâmpada e, portanto, da saída de lâmpada, dentro de uma faixa de saídas de lâmpadas, 10% acima e abaixo da saída nominal da lâmpada. Podem ser usadas modalidades exemplificativas com um conjunto único de elementos de potência para acender lâmpadas múltiplas em uma condição quer isolada quer não isolada.
BR0103776-5A 2000-05-05 2001-05-04 Circuito de lastro de amortecimento de luz BR0103776A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/564,577 US6472876B1 (en) 2000-05-05 2000-05-05 Sensing and balancing currents in a ballast dimming circuit

Publications (1)

Publication Number Publication Date
BR0103776A true BR0103776A (pt) 2002-07-30

Family

ID=24255033

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0103776-5A BR0103776A (pt) 2000-05-05 2001-05-04 Circuito de lastro de amortecimento de luz

Country Status (2)

Country Link
US (1) US6472876B1 (pt)
BR (1) BR0103776A (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040077211A (ko) * 2003-02-28 2004-09-04 삼성전자주식회사 표시 장치용 광원의 구동 장치
JP2007519174A (ja) * 2003-07-04 2007-07-12 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 複数の負の動的インピーダンス負荷を動作するためのシステム
US7187139B2 (en) 2003-09-09 2007-03-06 Microsemi Corporation Split phase inverters for CCFL backlight system
WO2005038828A2 (en) 2003-10-06 2005-04-28 Microsemi Corporation A current sharing scheme and device for multiple ccf lamp operation
WO2005043592A2 (en) * 2003-10-21 2005-05-12 Microsemi Corporation Balancing transformers for lamps driven in parallel
US7468722B2 (en) 2004-02-09 2008-12-23 Microsemi Corporation Method and apparatus to control display brightness with ambient light correction
US7112929B2 (en) 2004-04-01 2006-09-26 Microsemi Corporation Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system
US7755595B2 (en) 2004-06-07 2010-07-13 Microsemi Corporation Dual-slope brightness control for transflective displays
US7173379B2 (en) * 2004-07-30 2007-02-06 Microsemi Corporation Incremental distributed driver
DE102004061325A1 (de) 2004-12-20 2006-06-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung
US7061183B1 (en) 2005-03-31 2006-06-13 Microsemi Corporation Zigzag topology for balancing current among paralleled gas discharge lamps
US20060244395A1 (en) * 2005-05-02 2006-11-02 Taipale Mark S Electronic ballast having missing lamp detection
US7569998B2 (en) 2006-07-06 2009-08-04 Microsemi Corporation Striking and open lamp regulation for CCFL controller
KR100916053B1 (ko) * 2007-12-12 2009-09-08 삼성전기주식회사 중간 탭을 이용한 보호 회로를 구비한 백라이트 유닛
TW200939886A (en) 2008-02-05 2009-09-16 Microsemi Corp Balancing arrangement with reduced amount of balancing transformers
US8093839B2 (en) 2008-11-20 2012-01-10 Microsemi Corporation Method and apparatus for driving CCFL at low burst duty cycle rates
US8138676B2 (en) * 2008-12-01 2012-03-20 Mills Robert L Methods and systems for dimmable fluorescent lighting using multiple frequencies
US8198829B2 (en) * 2009-12-09 2012-06-12 Leviton Manufacturing Co., Inc. Intensity balance for multiple lamps
WO2012012195A2 (en) 2010-07-19 2012-01-26 Microsemi Corporation Led string driver arrangement with non-dissipative current balancer
US8610366B1 (en) 2011-04-08 2013-12-17 Universal Lightning Technologies, Inc. Lighting ballast and method for balancing multiple independent resonant tanks
CN103477712B (zh) 2011-05-03 2015-04-08 美高森美公司 高效led驱动方法
US8754581B2 (en) 2011-05-03 2014-06-17 Microsemi Corporation High efficiency LED driving method for odd number of LED strings

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4277726A (en) * 1978-08-28 1981-07-07 Litton Systems, Inc. Solid-state ballast for rapid-start type fluorescent lamps
USRE33057E (en) * 1980-06-23 1989-09-12 Brigham Young University High frequency supply system for gas discharge lamps and electronic ballast therefor
US4441054A (en) * 1982-04-12 1984-04-03 Gte Products Corporation Stabilized dimming circuit for lamp ballasts
US4622496A (en) * 1985-12-13 1986-11-11 Energy Technologies Corp. Energy efficient reactance ballast with electronic start circuit for the operation of fluorescent lamps of various wattages at standard levels of light output as well as at increased levels of light output
US4902942A (en) * 1988-06-02 1990-02-20 General Electric Company Controlled leakage transformer for fluorescent lamp ballast including integral ballasting inductor
US6100651A (en) * 1989-04-17 2000-08-08 Hitoshi Ohtsuka Fluorescent lamp stabilizer harmonics reduction method
EP0766500B1 (en) * 1995-09-27 2001-12-12 Koninklijke Philips Electronics N.V. Ballast with balancer transformer for fluorescent lamps
AU3575395A (en) * 1995-10-03 1997-04-28 Sandor Pal Improvements in or relating to an electronic ballast for fluorescent lamps
US5982253A (en) * 1997-08-27 1999-11-09 Nartron Corporation In-line module for attenuating electrical noise with male and female blade terminals
US6104147A (en) * 1997-10-28 2000-08-15 Matsushita Electric Works, Ltd. Pulse generator and discharge lamp lighting device using same
US6121734A (en) * 1998-10-16 2000-09-19 Szabados; Barna Apparatus for dimming a fluorescent lamp with a magnetic ballast
US6114814A (en) * 1998-12-11 2000-09-05 Monolithic Power Systems, Inc. Apparatus for controlling a discharge lamp in a backlighted display

Also Published As

Publication number Publication date
US6472876B1 (en) 2002-10-29

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A , 6A , 7A E 8A ANUIDADES.

B08G Application fees: restoration [chapter 8.7 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 DA RPI 2012 DE 28/07/2009.

B08H Application fees: decision cancelled [chapter 8.8 patent gazette]

Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 2072 DE 21/09/2010.

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM ART. 8O COMBINADO COM ART. 13 DA LPI

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.