JPS5055175A - - Google Patents
Info
- Publication number
- JPS5055175A JPS5055175A JP49098308A JP9830874A JPS5055175A JP S5055175 A JPS5055175 A JP S5055175A JP 49098308 A JP49098308 A JP 49098308A JP 9830874 A JP9830874 A JP 9830874A JP S5055175 A JPS5055175 A JP S5055175A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S315/00—Electric lamp and discharge devices: systems
- Y10S315/04—Dimming circuit for fluorescent lamps
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/391,953 US3936696A (en) | 1973-08-27 | 1973-08-27 | Dimming circuit with saturated semiconductor device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5055175A true JPS5055175A (ja) | 1975-05-15 |
Family
ID=23548661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP49098308A Pending JPS5055175A (ja) | 1973-08-27 | 1974-08-27 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3936696A (ja) |
JP (1) | JPS5055175A (ja) |
CA (1) | CA1056900A (ja) |
FR (1) | FR2242834B1 (ja) |
GB (1) | GB1477928A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009238414A (ja) | 2008-03-26 | 2009-10-15 | Fuji Heavy Ind Ltd | 電界放出型ランプの駆動装置 |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4207497A (en) * | 1978-12-05 | 1980-06-10 | Lutron Electronics Co., Inc. | Ballast structure for central high frequency dimming apparatus |
US4286195A (en) * | 1979-07-05 | 1981-08-25 | Vultron, Inc. | Dimmer circuit for fluorescent lamps |
US4464610A (en) * | 1981-07-27 | 1984-08-07 | Cornell-Dubilier Corp. | Modular lighting control with circulating inductor |
US4523129A (en) * | 1981-07-27 | 1985-06-11 | Cornell Dubilier Electronics | Modular lighting control with circulating inductor |
GB2137780B (en) * | 1983-02-10 | 1986-09-17 | Newton Derby Ltd | Current regulated power supply circuit |
DE3528838A1 (de) * | 1985-08-10 | 1987-02-12 | Diehl Gmbh & Co | Zuend- und dimmschaltung fuer eine leuchtstoffroehre |
US5030887A (en) * | 1990-01-29 | 1991-07-09 | Guisinger John E | High frequency fluorescent lamp exciter |
US5140228A (en) * | 1990-02-23 | 1992-08-18 | Stocker & Yale, Inc. | Apparatus for regulating the intensity of light emitted by a lamp |
US5608295A (en) * | 1994-09-02 | 1997-03-04 | Valmont Industries, Inc. | Cost effective high performance circuit for driving a gas discharge lamp load |
US5668446A (en) * | 1995-01-17 | 1997-09-16 | Negawatt Technologies Inc. | Energy management control system for fluorescent lighting |
US5949197A (en) * | 1997-06-30 | 1999-09-07 | Everbrite, Inc. | Apparatus and method for dimming a gas discharge lamp |
US6979959B2 (en) * | 2002-12-13 | 2005-12-27 | Microsemi Corporation | Apparatus and method for striking a fluorescent lamp |
US7187139B2 (en) * | 2003-09-09 | 2007-03-06 | Microsemi Corporation | Split phase inverters for CCFL backlight system |
US7183727B2 (en) * | 2003-09-23 | 2007-02-27 | Microsemi Corporation | Optical and temperature feedbacks to control display brightness |
JP4658061B2 (ja) * | 2003-10-06 | 2011-03-23 | マイクロセミ・コーポレーション | 複数のccfランプを動作させるための電流分配方法および装置 |
US7279851B2 (en) * | 2003-10-21 | 2007-10-09 | Microsemi Corporation | Systems and methods for fault protection in a balancing transformer |
US7239087B2 (en) | 2003-12-16 | 2007-07-03 | Microsemi Corporation | Method and apparatus to drive LED arrays using time sharing technique |
US7468722B2 (en) | 2004-02-09 | 2008-12-23 | Microsemi Corporation | Method and apparatus to control display brightness with ambient light correction |
WO2005099316A2 (en) * | 2004-04-01 | 2005-10-20 | Microsemi Corporation | Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system |
WO2005101920A2 (en) | 2004-04-07 | 2005-10-27 | Microsemi Corporation | A primary side current balancing scheme for multiple ccf lamp operation |
US7755595B2 (en) | 2004-06-07 | 2010-07-13 | Microsemi Corporation | Dual-slope brightness control for transflective displays |
US7173382B2 (en) * | 2005-03-31 | 2007-02-06 | Microsemi Corporation | Nested balancing topology for balancing current among multiple lamps |
US20060244395A1 (en) * | 2005-05-02 | 2006-11-02 | Taipale Mark S | Electronic ballast having missing lamp detection |
US7414371B1 (en) | 2005-11-21 | 2008-08-19 | Microsemi Corporation | Voltage regulation loop with variable gain control for inverter circuit |
US20070127179A1 (en) * | 2005-12-05 | 2007-06-07 | Ludjin William R | Burnout protection switch |
US7569998B2 (en) | 2006-07-06 | 2009-08-04 | Microsemi Corporation | Striking and open lamp regulation for CCFL controller |
US7541751B2 (en) | 2007-03-05 | 2009-06-02 | Mdl Corporation | Soft start control circuit for lighting |
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 |
WO2012012195A2 (en) | 2010-07-19 | 2012-01-26 | Microsemi Corporation | Led string driver arrangement with non-dissipative current balancer |
US8754581B2 (en) | 2011-05-03 | 2014-06-17 | Microsemi Corporation | High efficiency LED driving method for odd number of LED strings |
CN103477712B (zh) | 2011-05-03 | 2015-04-08 | 美高森美公司 | 高效led驱动方法 |
US9386665B2 (en) | 2013-03-14 | 2016-07-05 | Honeywell International Inc. | System for integrated lighting control, configuration, and metric tracking from multiple locations |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3611024A (en) * | 1968-07-23 | 1971-10-05 | Matsushita Electric Ind Co Ltd | Semiconductor apparatus for controlling the brightness of a discharge lamp |
US3619716A (en) * | 1969-07-23 | 1971-11-09 | Lutron Electronics Co | High-frequency fluorescent tube lighting circuit and ac driving circuit therefor |
US3681654A (en) * | 1971-02-18 | 1972-08-01 | Wagner Electric Corp | Light-regulating power supply circuit for gaseous discharge lamp |
-
1973
- 1973-08-27 US US05/391,953 patent/US3936696A/en not_active Expired - Lifetime
-
1974
- 1974-06-28 GB GB2883874A patent/GB1477928A/en not_active Expired
- 1974-08-12 CA CA206,768A patent/CA1056900A/en not_active Expired
- 1974-08-27 FR FR7429318A patent/FR2242834B1/fr not_active Expired
- 1974-08-27 JP JP49098308A patent/JPS5055175A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009238414A (ja) | 2008-03-26 | 2009-10-15 | Fuji Heavy Ind Ltd | 電界放出型ランプの駆動装置 |
Also Published As
Publication number | Publication date |
---|---|
DE2440738A1 (de) | 1975-03-20 |
FR2242834B1 (ja) | 1982-01-29 |
US3936696A (en) | 1976-02-03 |
CA1056900A (en) | 1979-06-19 |
DE2440738B2 (de) | 1977-01-13 |
FR2242834A1 (ja) | 1975-03-28 |
GB1477928A (en) | 1977-06-29 |