KR100824710B1 - 냉음극관 구동 장치 - Google Patents
냉음극관 구동 장치 Download PDFInfo
- Publication number
- KR100824710B1 KR100824710B1 KR1020077006941A KR20077006941A KR100824710B1 KR 100824710 B1 KR100824710 B1 KR 100824710B1 KR 1020077006941 A KR1020077006941 A KR 1020077006941A KR 20077006941 A KR20077006941 A KR 20077006941A KR 100824710 B1 KR100824710 B1 KR 100824710B1
- Authority
- KR
- South Korea
- Prior art keywords
- cathode tube
- cold cathode
- current value
- circuit
- lamp current
- Prior art date
Links
Images
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
- H05B41/2858—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions
-
- 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
- H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
-
- 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
-
- 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
- H05B41/288—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 and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
Claims (3)
- 고주파 전압을 생성하는 인버터 회로와,상기 인버터 회로에 의해 생성된 고주파 전압을 승압하는 승압 변압기와,상기 승압 변압기에 의한 승압 후의 고주파 전압에 의해 점등하는 냉음극관과,상기 냉음극관과 병렬로 접속되고 리액턴스 소자를 가지는 직렬 회로와,상기 직렬 회로의 도통 전류치와 상기 승압 변압기의 2차측 전류치를 합성하고 상기 냉음극관의 램프 전류치(lamp current value)를 간접적으로 검출하는 합성 회로와,상기 합성 회로에 의해 간접적으로 검출된 램프 전류치에 기초하여, 상기 인버터 회로를 제어하여, 상기 냉음극관의 램프 전류를 제어하는 제어 회로를 구비한 것을 특징으로 하는 냉음극관 구동 장치.
- 제1항에 있어서상기 합성 회로는, 상기 냉음극관에 대해서 병렬로 존재하는 부유 용량(floating capacity)의 도통 전류치를 없애는 비율로, 상기 승압 변압기의 2차측 전류치에 상기 직렬 회로의 도통 전류치를 합성하는 것을 특징으로 하는 냉음극관 구동 장치.
- 제1항 또는 제2항에 있어서,상기 직렬 회로의 리액턴스 소자는, 상기 승압 변압기의 2차 코일과 함께 공진 회로를 형성하는 공진 컨덴서인 것을 특징으로 하는 냉음극관 구동 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004303123A JP4446476B2 (ja) | 2004-10-18 | 2004-10-18 | 冷陰極管駆動装置 |
JPJP-P-2004-00303123 | 2004-10-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20070057206A KR20070057206A (ko) | 2007-06-04 |
KR100824710B1 true KR100824710B1 (ko) | 2008-04-24 |
Family
ID=36202785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020077006941A KR100824710B1 (ko) | 2004-10-18 | 2005-08-08 | 냉음극관 구동 장치 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7656101B2 (ko) |
EP (1) | EP1863325B1 (ko) |
JP (1) | JP4446476B2 (ko) |
KR (1) | KR100824710B1 (ko) |
CN (1) | CN101019469B (ko) |
AT (1) | ATE514317T1 (ko) |
TW (1) | TW200614875A (ko) |
WO (1) | WO2006043361A1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009009721A (ja) * | 2007-06-26 | 2009-01-15 | Sanken Electric Co Ltd | 放電灯点灯装置 |
JP2009032421A (ja) * | 2007-07-24 | 2009-02-12 | Sanken Electric Co Ltd | 放電灯点灯装置 |
TW201034518A (en) * | 2009-03-05 | 2010-09-16 | Delta Electronics Inc | Lamp driving system |
CN101835325A (zh) * | 2009-03-10 | 2010-09-15 | 台达电子工业股份有限公司 | 灯管驱动系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61154486A (ja) * | 1984-12-27 | 1986-07-14 | Stanley Electric Co Ltd | インバ−タ |
JPH09129382A (ja) * | 1995-10-17 | 1997-05-16 | Internatl Business Mach Corp <Ibm> | 放電管回路異常検出装置及び情報処理システム |
JP3096242B2 (ja) * | 1995-08-30 | 2000-10-10 | 日本政策投資銀行 | 光ディスクの硬化装置 |
JP2002231474A (ja) * | 2001-01-19 | 2002-08-16 | Ambit Microsystems Corp | マルチ負荷の電源供給システム及びマルチランプの駆動システム |
JP2004213994A (ja) * | 2002-12-27 | 2004-07-29 | Harison Toshiba Lighting Corp | 放電灯点灯装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1069461C (zh) * | 1995-12-26 | 2001-08-08 | 株式会社东金 | 倒相电路 |
DE19613257A1 (de) | 1996-01-26 | 1997-07-31 | Tridonic Bauelemente | Verfahren und elektronische Steuerschaltung zum Regeln des Betriebsverhaltens von Gasentladungslampen |
EP0910229A3 (en) * | 1997-10-16 | 1999-08-25 | Tokin Corporation | Cold-cathode tube lighting circuit with protection circuit for piezoelectric transformer |
US5969482A (en) * | 1998-11-30 | 1999-10-19 | Philips Electronics North America Corporation | Circuit arrangement for operating a discharge lamp including real power sensing using a single quadrant multiplier |
US6100647A (en) * | 1998-12-28 | 2000-08-08 | Philips Electronics North America Corp. | Lamp ballast for accurate control of lamp intensity |
JP3096242U (ja) * | 2003-03-04 | 2003-09-12 | 船井電機株式会社 | テレビ受像機および冷陰極管調光装置 |
JP4716105B2 (ja) * | 2005-11-14 | 2011-07-06 | ミネベア株式会社 | 放電灯点灯装置 |
-
2004
- 2004-10-18 JP JP2004303123A patent/JP4446476B2/ja not_active Expired - Fee Related
-
2005
- 2005-08-08 US US11/577,437 patent/US7656101B2/en not_active Expired - Fee Related
- 2005-08-08 CN CN200580030562XA patent/CN101019469B/zh not_active Expired - Fee Related
- 2005-08-08 AT AT05768535T patent/ATE514317T1/de not_active IP Right Cessation
- 2005-08-08 EP EP05768535A patent/EP1863325B1/en not_active Not-in-force
- 2005-08-08 KR KR1020077006941A patent/KR100824710B1/ko not_active IP Right Cessation
- 2005-08-08 WO PCT/JP2005/014497 patent/WO2006043361A1/ja active Application Filing
- 2005-10-07 TW TW094135115A patent/TW200614875A/zh not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61154486A (ja) * | 1984-12-27 | 1986-07-14 | Stanley Electric Co Ltd | インバ−タ |
JP3096242B2 (ja) * | 1995-08-30 | 2000-10-10 | 日本政策投資銀行 | 光ディスクの硬化装置 |
JPH09129382A (ja) * | 1995-10-17 | 1997-05-16 | Internatl Business Mach Corp <Ibm> | 放電管回路異常検出装置及び情報処理システム |
JP2002231474A (ja) * | 2001-01-19 | 2002-08-16 | Ambit Microsystems Corp | マルチ負荷の電源供給システム及びマルチランプの駆動システム |
JP2004213994A (ja) * | 2002-12-27 | 2004-07-29 | Harison Toshiba Lighting Corp | 放電灯点灯装置 |
Also Published As
Publication number | Publication date |
---|---|
US7656101B2 (en) | 2010-02-02 |
CN101019469A (zh) | 2007-08-15 |
JP2006114441A (ja) | 2006-04-27 |
ATE514317T1 (de) | 2011-07-15 |
KR20070057206A (ko) | 2007-06-04 |
TW200614875A (en) | 2006-05-01 |
EP1863325B1 (en) | 2011-06-22 |
EP1863325A1 (en) | 2007-12-05 |
TWI347801B (ko) | 2011-08-21 |
US20090045756A1 (en) | 2009-02-19 |
EP1863325A4 (en) | 2009-12-30 |
CN101019469B (zh) | 2010-07-07 |
WO2006043361A1 (ja) | 2006-04-27 |
JP4446476B2 (ja) | 2010-04-07 |
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