CA2577416A1 - Improved apparatus and method for control of high intensity discharge lighting - Google Patents
Improved apparatus and method for control of high intensity discharge lighting Download PDFInfo
- Publication number
- CA2577416A1 CA2577416A1 CA 2577416 CA2577416A CA2577416A1 CA 2577416 A1 CA2577416 A1 CA 2577416A1 CA 2577416 CA2577416 CA 2577416 CA 2577416 A CA2577416 A CA 2577416A CA 2577416 A1 CA2577416 A1 CA 2577416A1
- Authority
- CA
- Canada
- Prior art keywords
- voltage
- hid
- primary winding
- switch
- line
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
-
- 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
- H05B41/382—Controlling the intensity of light during the transitional start-up phase
-
- 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
- H05B41/42—Controlling the intensity of light discontinuously in two steps only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/02—Auto-transformers
-
- 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
Abstract
An improved apparatus and method for control of discharge lighting, such as HID (high intensity discharge) lighting, effects full-voltage start up of the lighting, and sustained operation of the lighting at a reduced voltage after a selected and variable start-up phase or interval. The apparatus includes an auto transformer (28 and 30) having a primary winding and a secondary winding.
The primary winding is always in series with the load, but may be shorted to connect full line voltage from the line to the load. When the primary winding is not shorted, the secondary winding is connected to the load also, so that reduced voltage is provided to the load. A thermal analog device (36) simulates the warm up time constant of the HID lighting unit, so that the reduction in operating voltage to the HID lighting unit is effected only after this lighting unit has achieved a sufficiently high temperature to sustain operation at a reduced operating voltage.
The primary winding is always in series with the load, but may be shorted to connect full line voltage from the line to the load. When the primary winding is not shorted, the secondary winding is connected to the load also, so that reduced voltage is provided to the load. A thermal analog device (36) simulates the warm up time constant of the HID lighting unit, so that the reduction in operating voltage to the HID lighting unit is effected only after this lighting unit has achieved a sufficiently high temperature to sustain operation at a reduced operating voltage.
Claims (20)
1. A control apparatus for starting a load device at full AC line voltage, and for sustained operation of said load device at a reduced operating voltage with no loss of continuity between the line and load during voltage reduction, said control apparatus being characterized by an autotransformer having a primary winding including first and second ends, and a secondary winding having respective first and second ends; said primary winding being connected at its first end to one side of said AC line and at its second end being connected to one side of said load device; a SPDT switch having a first switch contact connecting to said first end of said primary winding, and a common contact connecting to said load device so that when said first switch contact and said common contact are connected, said primary winding is shorted and said load device receives full line voltage;
said SPDT switch including a second switch contact connecting to a first end of said secondary winding, and a second end of said secondary winding connecting to the other side of said AC line and to the other side of said load device, so that when said second switch contact and said common contact are connected said primary and secondary windings are in series across said AC line and said load device receives reduced voltage.
said SPDT switch including a second switch contact connecting to a first end of said secondary winding, and a second end of said secondary winding connecting to the other side of said AC line and to the other side of said load device, so that when said second switch contact and said common contact are connected said primary and secondary windings are in series across said AC line and said load device receives reduced voltage.
2. The control apparatus of Claim 1 further including an interval device for causing said SPDT switch to change from connection of said common contact with said first switch contact and to connection of said common contact to said second switch contact upon passage of a time interval after application of line voltage to said control apparatus and load.
3. The control apparatus of Claim 2 wherein said interval device includes a thermal analog of said load device.
4. The control apparatus of Claim 3 wherein said interval device effects a variable time interval between application of line voltage to said control apparatus and load and reduction of the voltage applied to said load dependent upon ambient temperature.
5. The control apparatus of Claim 3 wherein said interval device includes a count down timer.
6. The control apparatus of Claim 5 wherein said interval device effects a determined time interval between application of line voltage to said control apparatus and load and reduction of the voltage applied to said load dependent upon a value of said count down timer.
7. The control apparatus of Claim 1 wherein said load device includes a high intensity discharge (HID) lamp.
8. The control apparatus of Claim 1 further including a second autotransformer also having a primary winding including first and second ends, said second autotransformer also having a secondary winding having respective first and second ends; said primary winding being connected at its first end to one side of said AC line and at its second end being connected to one side of a second load device;
a second SPDT switch having a first switch contact connecting to said first end of said primary winding of said second autotransformer, and a common contact connecting to said second load device so that when said first switch contact and said common contact are connected, said primary winding of said second autotransformer is shorted and said second load device receives full line voltage;
said second SPDT switch including a second switch contact connecting to a first end of said secondary winding of said second autotransformer, and a second end of said secondary winding connecting to the other side of said AC line and to the other side of said second load device, so that when said second switch contact and said common contact of said second SPDT switch are connected said primary and secondary windings are in series across said AC line and said second load device receives reduced voltage.
a second SPDT switch having a first switch contact connecting to said first end of said primary winding of said second autotransformer, and a common contact connecting to said second load device so that when said first switch contact and said common contact are connected, said primary winding of said second autotransformer is shorted and said second load device receives full line voltage;
said second SPDT switch including a second switch contact connecting to a first end of said secondary winding of said second autotransformer, and a second end of said secondary winding connecting to the other side of said AC line and to the other side of said second load device, so that when said second switch contact and said common contact of said second SPDT switch are connected said primary and secondary windings are in series across said AC line and said second load device receives reduced voltage.
9. The control device of Claim 8 wherein said device includes a case receiving said autotransformer, said second autotransformer, said SPDT switch, and said second SPDT
switch; said autotransformers being arrayed within said case in spaced apart relation, and said SPDT switches similarly being arrayed within said case in spaced apart relation along an orthogonal line to define a recess among said autotransfonners transformers and SPDT
switches; and disposed in said recess is a thermal analog device which substantially replicates a warm up time constant of said load device and of said second load device.
switch; said autotransformers being arrayed within said case in spaced apart relation, and said SPDT switches similarly being arrayed within said case in spaced apart relation along an orthogonal line to define a recess among said autotransfonners transformers and SPDT
switches; and disposed in said recess is a thermal analog device which substantially replicates a warm up time constant of said load device and of said second load device.
10. The control device of Claim 9 further including a mass of thermal insulation received into said recess, and a protective cover member spanning said recess.
11. A method of effecting start up of an HTD lamp at full line voltage, and of reducing the operating voltage of the HID lamp for sustained operation at reduced energy consumption with no interruption of continuity between the line and the HID
lamp, said method being characterized by steps of: providing an autotransformer having a primary winding including first and second ends, and a secondary winding having respective first and second ends; connecting said primary winding at its first end to one side of said line, and connecting said primary winding at its second end in series with said HID
lighting unit;
providing a SPDT switch having a first switch contact, and connecting said first switch contact to said first end of said primary winding, and connecting the common contact of said SPDT switch to said HID lighting unit so that when said first switch contact and said common contact are connected said primary winding is shorted and said HID
lighting unit receives full line voltage; and connecting a second switch contact of said SPDT switch to a first end of said secondary winding, and a second end of said secondary winding connecting to the other side of said line and to the other side of said HID lamp, so that when said second switch contact and said common contact are connected, said primary and secondary windings are in series across said line and said HID lighting unit receives reduced voltage.
lamp, said method being characterized by steps of: providing an autotransformer having a primary winding including first and second ends, and a secondary winding having respective first and second ends; connecting said primary winding at its first end to one side of said line, and connecting said primary winding at its second end in series with said HID
lighting unit;
providing a SPDT switch having a first switch contact, and connecting said first switch contact to said first end of said primary winding, and connecting the common contact of said SPDT switch to said HID lighting unit so that when said first switch contact and said common contact are connected said primary winding is shorted and said HID
lighting unit receives full line voltage; and connecting a second switch contact of said SPDT switch to a first end of said secondary winding, and a second end of said secondary winding connecting to the other side of said line and to the other side of said HID lamp, so that when said second switch contact and said common contact are connected, said primary and secondary windings are in series across said line and said HID lighting unit receives reduced voltage.
12. The method of Claim 11 further including the steps of providing a thermal analog device, and applying power simultaneously to said HID lamp and to said thermal analog device so that said thermal analog device warms up from ambient temperature in approximate analogy to the warming of said HID lamp from ambient temperature, and employing a temperature level of said thermal analog device to effect switching of said SPDT
switch to reduce operating voltage applied to said HID lamp, so that when operating voltage to said HID lamp is reduced it will have achieved a sufficiently high temperature above ambient to sustain discharge operation at reduced operating voltage.
switch to reduce operating voltage applied to said HID lamp, so that when operating voltage to said HID lamp is reduced it will have achieved a sufficiently high temperature above ambient to sustain discharge operation at reduced operating voltage.
13. The method of Claim 11 further including the steps of providing a count down timer which counts down a determined time interval upon power being applied to said timer and then effects switching of said SPDT switch to reduce operating voltage provided to said HID lamp, and applying power simultaneously to said HID lamp and to said count down timer so that when said count down timer reaches the end of said determined time interval and effects switching of said SPDT switch to reduce operating voltage applied to said HID
lamp said HID lamp will have achieved a sufficiently high temperature above ambient to sustain discharge operation at reduced operating voltage.
lamp said HID lamp will have achieved a sufficiently high temperature above ambient to sustain discharge operation at reduced operating voltage.
14 14. A plug-in modular control unit for a high intensity discharge (HID) street lamp, said control unit being characterized by: an autotransformer having a primary winding including first and second ends, and a secondary winding having respective first and second ends; the primary winding being connected at its first end to a source of AC
power, and at its second end with one side of the HID street lamp; a SPDT switch having a first switch contact connecting to said first end of said primary winding, and a common contact connecting to the one side of the HID street lamp so that when said first switch contact and said common contact are connected, said primary winding is shorted and said HID street lamp receives full line voltage; said SPDT switch including a second switch contact connecting to a first end of said secondary winding, and a second end of said secondary winding connecting to said source of AC power and to the other side of said HID street lamp, so that when said second switch contact and said common contact are connected, said primary and secondary windings are in series across said source of AC power and said HID street lamp receives reduced voltage without interruption of current flow to the HID street lamp.
power, and at its second end with one side of the HID street lamp; a SPDT switch having a first switch contact connecting to said first end of said primary winding, and a common contact connecting to the one side of the HID street lamp so that when said first switch contact and said common contact are connected, said primary winding is shorted and said HID street lamp receives full line voltage; said SPDT switch including a second switch contact connecting to a first end of said secondary winding, and a second end of said secondary winding connecting to said source of AC power and to the other side of said HID street lamp, so that when said second switch contact and said common contact are connected, said primary and secondary windings are in series across said source of AC power and said HID street lamp receives reduced voltage without interruption of current flow to the HID street lamp.
15. The plug-in modular control unit of Claim 14 further including an elongate housing presenting a male plug at one end and a complementary female receptacle at an opposite end, said male plug being configured to insert into a light sensor receptacle of said street lamp, and said complementary receptacle receiving a light sensor for control of said street lamp.
16. The plug-in modular control unit of Claim 15 wherein said autotransformer is of torroidal configuration to fit within said elongate housing between said male plug and said female receptacle.
17. The plug-in modular control unit of Claim 16 wherein said torroidal autotransformer provides a central opening through which a structural element of said control unit housing is received.
18. The plug-in modular control unit of Claim 17 wherein said housing includes an inverted cup-shaped housing portion upwardly defining openings for a female receptacle, and downwardly defining an opening into which is received a closure member carrying male prongs of an electrical plug complementary to said female receptacle.
19. For use in combination with a street lamp having a lamp structure with a receptacle receiving an ambient light sensor for automatically activating the street lamp upon a reduction in ambient light, a modular voltage reduction apparatus configured to be interposed between the light sensor and the lamp structure, and said modular voltage reduction apparatus characterized by: a receptacle for receiving said light sensor; a plug for mating said modular voltage reduction apparatus to said lamp structure receptacle; and a voltage control circuit for starting said street lamp at full line voltage, and for sustaining operation of the street lamp at reduced voltage without interruption of current flow to said lamp structure.
20. The modular voltage reduction apparatus of Claim 19 wherein said voltage control circuit including an autotransformer having a primary winding including first and second ends, and a secondary winding having respective first and second ends;
said primary winding being connected at its first end to one side of said AC line and at its second end being connected to one side of said load device; a SPDT switch having a first switch contact connecting to said first end of said primary winding, and a common contact connecting to said load device so that when said first switch contact and said common contact are connected, said primary winding is shorted and said load device receives full line voltage;
said SPDT switch including a second switch contact connecting to a first end of said secondary winding, and a second end of said secondary winding connecting to the other side of said AC line and to the other side of said load device, so that when said second switch contact and said common contact are connected said primary and secondary windings are in series across said AC line and said load device receives reduced voltage.
said primary winding being connected at its first end to one side of said AC line and at its second end being connected to one side of said load device; a SPDT switch having a first switch contact connecting to said first end of said primary winding, and a common contact connecting to said load device so that when said first switch contact and said common contact are connected, said primary winding is shorted and said load device receives full line voltage;
said SPDT switch including a second switch contact connecting to a first end of said secondary winding, and a second end of said secondary winding connecting to the other side of said AC line and to the other side of said load device, so that when said second switch contact and said common contact are connected said primary and secondary windings are in series across said AC line and said load device receives reduced voltage.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60697204P | 2004-09-02 | 2004-09-02 | |
| US60/606,972 | 2004-09-02 | ||
| PCT/US2005/030700 WO2006028781A1 (en) | 2004-09-02 | 2005-08-26 | Improved apparatus and method for control of high intensity discharge lighting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2577416A1 true CA2577416A1 (en) | 2006-03-16 |
| CA2577416C CA2577416C (en) | 2010-07-20 |
Family
ID=36036679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2577416A Expired - Fee Related CA2577416C (en) | 2004-09-02 | 2005-08-26 | Improved apparatus and method for control of high intensity discharge lighting |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US7084587B2 (en) |
| EP (1) | EP1784700A4 (en) |
| JP (1) | JP2008511965A (en) |
| KR (1) | KR100876005B1 (en) |
| CN (1) | CN100595713C (en) |
| AU (1) | AU2005282832B2 (en) |
| BR (1) | BRPI0515620A (en) |
| CA (1) | CA2577416C (en) |
| IL (1) | IL181574A0 (en) |
| MX (1) | MX2007002620A (en) |
| NZ (1) | NZ552850A (en) |
| WO (1) | WO2006028781A1 (en) |
| ZA (1) | ZA200701542B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005282832B2 (en) * | 2004-09-02 | 2010-03-25 | Active Es Lighting Controls, Inc. | Improved apparatus and method for control of high intensity discharge lighting |
| NZ570977A (en) * | 2006-03-21 | 2011-09-30 | Active Es Lighting Controls Inc | A modular voltage control transformer circuit for controlling the voltage of high intensity discharge (HID) lighting |
| JP2007287638A (en) * | 2006-04-18 | 2007-11-01 | Osamu Nakamura | Hid power reduction device for reducing power consumed in lighting mercury lamp |
| US7973490B2 (en) * | 2007-05-31 | 2011-07-05 | Active Es Lighting Controls, Inc | HID lighting control with transient voltage sensing and lamp restarting, and method of making and using |
| CN101457878B (en) * | 2007-12-12 | 2010-11-10 | 富士迈半导体精密工业（上海）有限公司 | Street lamp system |
| US8633661B2 (en) * | 2009-07-15 | 2014-01-21 | Gary Skwarlo | Time-delayed power switching device and methods of use |
| WO2011057343A1 (en) * | 2009-11-16 | 2011-05-19 | 300K Enterprises Pty Ltd | Contactless coupling and method for use with an electrical appliance |
| HUP1000054A3 (en) | 2010-01-26 | 2012-08-28 | Gradix Holdings Ltd | Ac voltage converter and switching equipment |
| JP5033215B2 (en) * | 2010-04-19 | 2012-09-26 | 株式会社因幡電機製作所 | Street light |
| US10448487B2 (en) | 2015-02-26 | 2019-10-15 | Signify Holding B.V. | Driver module for powering a light source and a further module |
| US9713237B1 (en) * | 2016-10-14 | 2017-07-18 | Lopresti Speed Merchants | Dynamically optimized ballast |
| US11375599B2 (en) | 2017-04-03 | 2022-06-28 | Express Imaging Systems, Llc | Systems and methods for outdoor luminaire wireless control |
| US10904992B2 (en) | 2017-04-03 | 2021-01-26 | Express Imaging Systems, Llc | Systems and methods for outdoor luminaire wireless control |
| US10932343B2 (en) * | 2018-05-10 | 2021-02-23 | Express Imaging Systems, Llc | Switch protection apparatus and operating method thereof |
| US11234304B2 (en) | 2019-05-24 | 2022-01-25 | Express Imaging Systems, Llc | Photocontroller to control operation of a luminaire having a dimming line |
| US11317497B2 (en) | 2019-06-20 | 2022-04-26 | Express Imaging Systems, Llc | Photocontroller and/or lamp with photocontrols to control operation of lamp |
| US11212887B2 (en) | 2019-11-04 | 2021-12-28 | Express Imaging Systems, Llc | Light having selectively adjustable sets of solid state light sources, circuit and method of operation thereof, to provide variable output characteristics |
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-
2005
- 2005-08-26 AU AU2005282832A patent/AU2005282832B2/en not_active Ceased
- 2005-08-26 CN CN200580029592A patent/CN100595713C/en not_active Expired - Fee Related
- 2005-08-26 MX MX2007002620A patent/MX2007002620A/en active IP Right Grant
- 2005-08-26 WO PCT/US2005/030700 patent/WO2006028781A1/en active Application Filing
- 2005-08-26 CA CA2577416A patent/CA2577416C/en not_active Expired - Fee Related
- 2005-08-26 JP JP2007530241A patent/JP2008511965A/en not_active Ceased
- 2005-08-26 US US11/213,389 patent/US7084587B2/en not_active Expired - Fee Related
- 2005-08-26 KR KR1020077006507A patent/KR100876005B1/en not_active IP Right Cessation
- 2005-08-26 EP EP05792555A patent/EP1784700A4/en not_active Withdrawn
- 2005-08-26 NZ NZ552850A patent/NZ552850A/en not_active IP Right Cessation
- 2005-08-26 BR BRPI0515620-3A patent/BRPI0515620A/en not_active IP Right Cessation
-
2007
- 2007-02-21 ZA ZA200701542A patent/ZA200701542B/en unknown
- 2007-02-26 IL IL181574A patent/IL181574A0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP1784700A4 (en) | 2009-10-28 |
| AU2005282832A1 (en) | 2006-03-16 |
| WO2006028781A1 (en) | 2006-03-16 |
| CN100595713C (en) | 2010-03-24 |
| EP1784700A1 (en) | 2007-05-16 |
| KR20070057187A (en) | 2007-06-04 |
| AU2005282832B2 (en) | 2010-03-25 |
| ZA200701542B (en) | 2009-10-28 |
| US20060055248A1 (en) | 2006-03-16 |
| IL181574A0 (en) | 2007-07-04 |
| JP2008511965A (en) | 2008-04-17 |
| NZ552850A (en) | 2009-01-31 |
| MX2007002620A (en) | 2007-10-02 |
| CN101065715A (en) | 2007-10-31 |
| CA2577416C (en) | 2010-07-20 |
| US7084587B2 (en) | 2006-08-01 |
| KR100876005B1 (en) | 2008-12-26 |
| BRPI0515620A (en) | 2008-07-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150826 |