ES433733A1 - High intensity lamp dimming circuit - Google Patents
High intensity lamp dimming circuitInfo
- Publication number
- ES433733A1 ES433733A1 ES433733A ES433733A ES433733A1 ES 433733 A1 ES433733 A1 ES 433733A1 ES 433733 A ES433733 A ES 433733A ES 433733 A ES433733 A ES 433733A ES 433733 A1 ES433733 A1 ES 433733A1
- Authority
- ES
- Spain
- Prior art keywords
- lamp
- high intensity
- dimming circuit
- bypass
- intensity lamp
- 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.)
- Expired
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
- H05B41/40—Controlling the intensity of light discontinuously
-
- 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
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A high intensity lamp dimming circuit in which the lamp or lamps are placed in series with a pair of reactive elements, one of which is at least partially bypassed when the voltage across the element and the current through it are of the same polarity. The relative time of the bypass determines the amplitude of the lamp current and hence its brightness. A control network, isolated from the power lines to which the lamp network is connected, controls the timing of the bypass. This control network preferably uses a programmable unijunction transistor and operates on a low-level dc setting. The control circuit design permits ready connection to single phase and three phase power systems alike.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US441429A US3894265A (en) | 1974-02-11 | 1974-02-11 | High intensity lamp dimming circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
ES433733A1 true ES433733A1 (en) | 1977-02-16 |
Family
ID=23752836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES433733A Expired ES433733A1 (en) | 1974-02-11 | 1975-01-11 | High intensity lamp dimming circuit |
Country Status (9)
Country | Link |
---|---|
US (1) | US3894265A (en) |
BE (1) | BE824338A (en) |
BR (1) | BR7410810D0 (en) |
CA (1) | CA1041160A (en) |
DE (1) | DE2505453A1 (en) |
ES (1) | ES433733A1 (en) |
FR (1) | FR2260920B1 (en) |
GB (1) | GB1477908A (en) |
IT (1) | IT1026419B (en) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3991344A (en) * | 1975-03-18 | 1976-11-09 | Westinghouse Electric Corporation | Solid-state dimmer for dual high pressure discharge lamps |
US4009387A (en) * | 1975-05-27 | 1977-02-22 | Esquire, Inc. | Automatic energy control lighting system with automatically variable dc source |
US3989976A (en) * | 1975-10-07 | 1976-11-02 | Westinghouse Electric Corporation | Solid-state hid lamp dimmer |
US4197485A (en) * | 1978-07-24 | 1980-04-08 | Esquire, Inc. | Optocoupler dimmer circuit for high intensity, gaseous discharge lamp |
US4181873A (en) * | 1978-08-04 | 1980-01-01 | Esquire, Inc. | High frequency dimmer circuit for high intensity, gaseous discharge lamp |
US4220895A (en) * | 1978-08-25 | 1980-09-02 | Esquire, Inc. | Non-interfering, overlapping high frequency signalling for lamp dimmer circuit |
US4204141A (en) * | 1978-09-11 | 1980-05-20 | Esquire, Inc. | Adjustable DC pulse circuit for variation over a predetermined range using two timer networks |
US4170747A (en) * | 1978-09-22 | 1979-10-09 | Esquire, Inc. | Fixed frequency, variable duty cycle, square wave dimmer for high intensity gaseous discharge lamp |
FR2466935A1 (en) * | 1979-10-05 | 1981-04-10 | Oce Photosia Sa | Fluorescent lamp control for reprographic machine - maintains lamps at half power between copies to increase lamp life and light output intensity |
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 |
US4463287A (en) * | 1981-10-07 | 1984-07-31 | Cornell-Dubilier Corp. | Four lamp modular lighting control |
AU8929682A (en) * | 1982-01-11 | 1983-07-21 | Cornell-Dubilier Electronics Inc. | Magnetic ballast with thyristor control |
JPS59180994A (en) * | 1983-03-30 | 1984-10-15 | 東芝ライテック株式会社 | Device for firing discharge lamp |
EP0181666B1 (en) * | 1984-11-06 | 1990-01-03 | Koninklijke Philips Electronics N.V. | High-pressure discharge lamp |
US4999547A (en) * | 1986-09-25 | 1991-03-12 | Innovative Controls, Incorporated | Ballast for high pressure sodium lamps having constant line and lamp wattage |
US4797599A (en) * | 1987-04-21 | 1989-01-10 | Lutron Electronics Co., Inc. | Power control circuit with phase controlled signal input |
US5432407A (en) * | 1990-12-26 | 1995-07-11 | Motorola, Inc. | Field emission device as charge transport switch for energy storage network |
US5352958A (en) * | 1992-11-19 | 1994-10-04 | Cunningham David W | Lighting control system dimmer module with plug-in electrical contacts |
US5815067A (en) * | 1997-05-19 | 1998-09-29 | Thomas Lighting | Single control wire device for HID dimming |
EP1107651A3 (en) * | 1999-12-10 | 2004-12-08 | Otto Diez Elektromaschinenbau | Device with a discharge lamp |
US6577075B2 (en) * | 2000-11-14 | 2003-06-10 | Shafrir Romano | High intensity discharge lamp magnetic/electronic ballast |
US6703795B2 (en) * | 2002-02-25 | 2004-03-09 | Cooper Technologies Company | Auxiliary controller |
AUPS131202A0 (en) * | 2002-03-25 | 2002-05-09 | Clipsal Integrated Systems Pty Ltd | Circuit arrangement for power control |
US7139680B2 (en) * | 2004-07-15 | 2006-11-21 | Crydom Limited | Apparatus and method for standby lighting |
CA2656177C (en) | 2005-06-30 | 2015-04-21 | Streetlight Intelligence, Inc. | Adaptive energy performance monitoring and control system |
CN101208586B (en) * | 2005-06-30 | 2010-08-04 | 路灯智能化公司 | Method and system for luminance characterization |
ATE556568T1 (en) * | 2005-06-30 | 2012-05-15 | Led Roadway Lighting Ltd | METHOD AND SYSTEM FOR LUMINANCE CHARACTERIZATION |
US8570190B2 (en) * | 2007-09-07 | 2013-10-29 | Led Roadway Lighting Ltd. | Centralized route calculation for a multi-hop streetlight network |
US8290710B2 (en) * | 2007-09-07 | 2012-10-16 | Led Roadway Lighting Ltd. | Streetlight monitoring and control |
CN104777818A (en) * | 2015-04-22 | 2015-07-15 | 国家电网公司 | Illuminating system with function of demand response |
US10630193B1 (en) | 2019-03-05 | 2020-04-21 | Ev Enterprises | Isolated phase control power regulation circuit and system |
CN109764633B (en) * | 2019-03-06 | 2023-05-02 | 杭州华日家电有限公司 | Control method for self-optimizing peak-staggering defrosting of frostless refrigerator |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3816794A (en) * | 1972-03-28 | 1974-06-11 | Esquire Inc | High intensity, gas discharge lamp dimmer system |
-
1974
- 1974-02-11 US US441429A patent/US3894265A/en not_active Expired - Lifetime
- 1974-12-13 GB GB5394974A patent/GB1477908A/en not_active Expired
- 1974-12-26 BR BR10810/74A patent/BR7410810D0/en unknown
- 1974-12-27 CA CA217,026A patent/CA1041160A/en not_active Expired
-
1975
- 1975-01-11 ES ES433733A patent/ES433733A1/en not_active Expired
- 1975-01-13 BE BE152337A patent/BE824338A/en not_active IP Right Cessation
- 1975-01-14 FR FR7500952A patent/FR2260920B1/fr not_active Expired
- 1975-01-22 IT IT47787/75A patent/IT1026419B/en active
- 1975-02-10 DE DE19752505453 patent/DE2505453A1/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
FR2260920A1 (en) | 1975-09-05 |
CA1041160A (en) | 1978-10-24 |
BR7410810D0 (en) | 1975-03-25 |
IT1026419B (en) | 1978-09-20 |
AU7744575A (en) | 1976-07-22 |
BE824338A (en) | 1975-05-02 |
FR2260920B1 (en) | 1980-03-28 |
DE2505453A1 (en) | 1975-08-14 |
US3894265A (en) | 1975-07-08 |
GB1477908A (en) | 1977-06-29 |
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