CN102548167A - Start-up circuit of metal halide lamp - Google Patents
Start-up circuit of metal halide lamp Download PDFInfo
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- CN102548167A CN102548167A CN2010106083832A CN201010608383A CN102548167A CN 102548167 A CN102548167 A CN 102548167A CN 2010106083832 A CN2010106083832 A CN 2010106083832A CN 201010608383 A CN201010608383 A CN 201010608383A CN 102548167 A CN102548167 A CN 102548167A
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- halogen lamp
- driver module
- metal halogen
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- 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
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Abstract
The invention relates to a start-up circuit of a metal halide lamp, and the start-up circuit comprises a power supply, a driver module and a power supply module used for connecting a first switching element between the power supply and the driver module, wherein the driver module receives a current from the power supply module so as to start the metal halide lamp and/or maintain the normal work of the metal halide lamp; and the power supply module comprises an operating current supply unit which is connected between the power supply and the driver module and supplies an operating current needed for the normal work of the metal halide lamp to the driver module, and a start-up current supply unit which is connected between the power supply and the driver module and supplies a start-up current needed for the start-up of the metal halide lamp to the driver module together with the operating current supply unit at the starting moment. The start-up circuit of the metal halide lamp in the embodiment of the invention ensures reliable protection for the metal halide lamp during the start-up process, the design of the start-up circuit of the metal halide lamp is simple, and the cost is lower.
Description
Technical field
The control field that the present invention relates to throw light on more particularly, relates to a kind of Metal halogen lamp start-up circuit.
Background technology
Metal halogen lamp is the new generation of green lighting source that the world today emerges after incandescent lamp, Halogen lamp LED, and it has the light efficiency height, and color rendering is good, advantages such as long service life.Its light efficiency can reach more than every watt 90 lumen, and its color rendering index surpasses 80, reaches useful life more than 10000 hours.Along with the continuous development of science and technology, product and technology of utilizing is constantly reformed, and Metal halogen lamp is as new type light source, because its energy-saving and environmental protection, characteristics of high efficiency, technology is ripe and be applied to fields such as automobile, illumination.
Because the starting current of Metal halogen lamp when starting is far longer than operating current at ordinary times.And Metal halogen lamp start-up circuit of the prior art, or the upper limit that flows through electric current through setting in its outside starts protection, or adopt accurate external smart control.Above-mentioned prior art or startup protection design are scientific and reasonable inadequately, can cause fault to enlarge, or cost are too high, are not suitable for promoting.
Summary of the invention
The technical problem that the present invention will solve is; Metal halogen lamp start-up circuit or startup protection design to prior art are scientific and reasonable inadequately, can cause fault to enlarge, or cost are too high; The defective that is not suitable for promoting provides a kind of simple, reliable, lower-cost Metal halogen lamp start-up circuit.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of Metal halogen lamp start-up circuit, comprise that power supply, driver module and connection first switching device are to the supply module between said power supply and the said driver module; Said driver module comprises being connected between said power supply and the said driver module and provides the operating current of the required operating current of said Metal halogen lamp operate as normal that the unit is provided for said driver module to start said Metal halogen lamp and/or to keep the said supply module of said Metal halogen lamp operate as normal from said supply module received current, and is connected between said power supply and the said driver module, provides the unit for said driver module provides the starting current of the required starting current of said Metal halogen lamp startup the unit to be provided jointly with said operating current starting moment.
In Metal halogen lamp start-up circuit of the present invention; Said starting current provides the unit to comprise the time relay; The normally closed fixed contact that normally closed moving contact warp first switching device of the said time relay is connected to said power supply, the said time relay is connected to first current input terminal of said driver module; The said time relay often open time-delay moving contact ground connection, the said time relay often open second current input terminal that the time-delay fixed contact is connected to said driver module; The power contact of the said time relay is connected to the earthing contact ground connection of the said power supply and the said time relay through said first switching device, and second current input terminal of said driver module is ground connection simultaneously.
In Metal halogen lamp start-up circuit of the present invention, said starting current provides the unit further to comprise delay circuit, and said delay circuit is connected between the power contact of the said power supply and the said time relay through said first switching device.
In Metal halogen lamp start-up circuit of the present invention; Said delay circuit comprises microcontroller chip, switching tube, field-effect transistor, first divider resistance and second divider resistance; The pulse-width signal output of wherein said microcontroller chip is connected to the base stage of said switching tube; The grounded emitter of said switching tube; The collector electrode of said switching tube is connected to the grid of said field-effect transistor through said second divider resistance; The source electrode of said field-effect transistor is connected to said power supply through said first switching device, and the drain electrode of said field-effect transistor is connected to the power contact of the said time relay, and said first divider resistance is connected between the grid and source electrode of said field-effect transistor.
In Metal halogen lamp start-up circuit of the present invention, said delay circuit further comprises diode, and the anode of said diode is connected to the source electrode of said field-effect transistor, and the negative electrode of said diode is connected to the power end of said microcontroller chip (U2).
In Metal halogen lamp start-up circuit of the present invention, said delay circuit further comprises first electric capacity and second electric capacity, and wherein said first electric capacity and second electric capacity are parallel between the source electrode and ground of said field-effect transistor.
In Metal halogen lamp start-up circuit of the present invention, said starting current provides the unit further to comprise to be connected to first safeties between first current input terminal of normally closed fixed contact and said driver module of the said time relay.
In Metal halogen lamp start-up circuit of the present invention; Said starting current provides the unit to comprise delay circuit and second switch device; The series connection of wherein said delay circuit and said second switch device is closed in the moment of setting to control said second switch device, and said operating current provides delay circuit and the said second switch device after unit and said the series connection parallelly connected.
In Metal halogen lamp start-up circuit of the present invention, said operating current provides the unit to comprise through said first switching device and is connected to second safeties between said power supply and the said driver module.
In Metal halogen lamp start-up circuit of the present invention; Said driver module comprises ballast; The current input terminal of said ballast is first current input terminal of said driver module; The earth terminal of said ballast is second current input terminal of said driver module, and the output of said ballast is connected to the two ends of Metal halogen lamp.
The Metal halogen lamp start-up circuit of embodiment of the present invention; Through adopting starting current to provide unit and operating current to provide the unit to start required starting current for said driver module provides said Metal halogen lamp jointly; Thereby guaranteed that Metal halogen lamp can access reliable protection when starting, and Metal halogen lamp start-up circuit simplicity of design of the present invention and cost are lower.Further, the present invention has further increased Metal halogen lamp and has started the reliability of protecting through adopting the time relay.Moreover the present invention can guarantee that when circuit abnormality fault does not enlarge through adopting first and second safeties, and the startup of enough electric current guarantee fund halogen lamp can be provided when startup.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the theory diagram according to Metal halogen lamp start-up circuit of the present invention;
Fig. 2 is the circuit theory diagrams according to the Metal halogen lamp start-up circuit of first embodiment of the invention;
Fig. 3 is the theory diagram according to the supply module of the Metal halogen lamp start-up circuit of second embodiment of the invention;
Fig. 4 is the circuit theory diagrams according to the Metal halogen lamp start-up circuit of third embodiment of the invention.
Embodiment
Fig. 1 is the theory diagram according to the Metal halogen lamp start-up circuit of first embodiment of the invention.As shown in Figure 1, Metal halogen lamp start-up circuit of the present invention comprises power supply 100, driver module 300 and is connected to the supply module 200 between said power supply 100 and the said driver module 300.Said driver module 300 from said supply module 200 received currents to start said Metal halogen lamp and/or to keep said Metal halogen lamp operate as normal.Wherein said supply module 200 comprises that operating current provides unit 210 and starting current that unit 220 is provided.Those skilled in the art know that Metal halogen lamp required electric current when starting is far longer than operating current at ordinary times.Therefore, in the present invention, operating current provides unit 210 to be connected between said power supply 100 and the said driver module 300 provides said Metal halogen lamp operate as normal required operating current for said driver module 300.Starting current provides unit 220 to be connected to too between said power supply 100 and the said driver module 300.It is only worked so that a big electric current to be provided when Metal halogen lamp starts.Starting moment; The operating current that starting current provides big electric current that unit 220 provides and said operating current to provide unit 210 to be provided offers driver module 300 together, thereby the starting current that provides a Metal halogen lamp to start required starting current provides unit 220.
Those skilled in the art know that this power supply 100 can adopt DC power supply well known in the art.Driver module 300 can be the dc drive circuit used always, ballast or the like.And operating current of the present invention provides unit 210 can be the current path that is connected to power supply 100 through switch, and it can comprise fuse, current-limiting resistance; Even also can comprise filter circuit or the like.Starting current provides unit 220 to be used for when Metal halogen lamp starts, working so that a big electric current to be provided; It can comprise any delaying current path that electric current can be provided in moment, such as time relay, delay circuit+switching component, delay circuit+time relay or the like.
The Metal halogen lamp start-up circuit of embodiment of the present invention; Through adopting starting current to provide unit and operating current to provide the unit to start required starting current for said driver module provides said Metal halogen lamp jointly; Thereby guaranteed that Metal halogen lamp can access reliable protection when starting, and Metal halogen lamp start-up circuit simplicity of design of the present invention and cost are lower.
Preferred embodiments more of the present invention have been shown in Fig. 2 of the present invention-4.Except following embodiment, those skilled in the art can design other power supplys with similar functions 100, driver module 300 and supply module 200 according to instruction of the present invention.
Fig. 2 is the circuit theory diagrams according to the Metal halogen lamp start-up circuit of first embodiment of the invention.As shown in Figure 2, Metal halogen lamp start-up circuit of the present invention comprises power supply 100, driver module 300, the first switching device S1, the first safeties F1, the second safeties F2, time relay RE1.In the present embodiment, time relay RE1 and the first safeties F1 pie graph, 1 described starting current provide the unit 220 (not shown).Operating current described in the second safeties F2 pie graph 1 provides the unit 210 (not shown).
Wherein the moving contact of the first switching device S1 is connected to the positive pole of DC power supply, and fixed contact is connected to node Vcc-in.The normally closed moving contact 1 of said time relay RE1 is connected to node Vcc-in.The normally closed fixed contact 2 of said time relay RE1 is connected to the first current input terminal Vcc-out of said driver module 300 through the said first safeties F1.Said time relay RE1 often opens time-delay moving contact 3 ground connection.The time-delay fixed contact 4 of often opening of said time relay RE1 is connected to second current input terminal of said driver module 300.The second current input terminal ground connection of said driver module 300.The power contact 6 of said time relay RE1 is connected to node Vcc-in.And earthing contact 5 ground connection of said time relay RE1.The said second safeties F2 is connected between the first current input terminal Vcc-out of node Vcc-in of institute and said driver module 300.Wherein this first safeties F1 and the second safeties F2 can be respectively fuse.Certainly, for the size of current that control flows is crossed, the said first safeties F1 and the second safeties F2 can connect with current-limiting resistance respectively.In the present embodiment, driver module 300 is ballast U1.The current input terminal of said ballast U1 is first current input terminal of said driver module 300, and the earth terminal of said ballast U1 is second current input terminal of said driver module 300, and the output of said ballast U1 is connected to the two ends of Metal halogen lamp.
When the first switching device S1 was closed, time relay RE1 got.The series circuit and the first safeties F2 parallel operation that the time relay RE1 and the first safeties F1 constitute.Just all flow through electric current on the first safeties F1 and the second safeties F2.The first safeties F1 provides bigger electric current to ballast U1, is used for ballast U1 and starts bulb DS1.Ballast U1 works on power, and Metal halogen lamp DS1 starts.After the Metal halogen lamp startup finished, starting current disappeared, and time relay RE1 quits work.The obstructed overcurrent of the first safeties F1.Electric current is through the second safeties F2 operate as normal.When circuit abnormality, the second safeties F2 damages, thereby the protection fault does not enlarge and when starting, provide enough electric currents to guarantee that light fixture starts.
In the present embodiment, through adopting the time relay, first and second safeties can guarantee that when circuit abnormality fault does not enlarge, and the startup of enough electric current guarantee fund halogen lamp can be provided when startup.
In other preferred embodiments of the present invention, also can adopt other drive circuits to replace ballast.Certainly in simplified embodiment of the present invention, when for example having the outside accurately to protect, first safeties can be set.These second safeties also can adopt current-limiting resistance to replace.Perhaps, other safeties except that fuse also can be provided.
Fig. 3 is the theory diagram according to the supply module of the Metal halogen lamp start-up circuit of second embodiment of the invention.Embodiment as shown in Figure 3 can not adopt the time relay to realize that starting current of the present invention provides unit 220.In the embodiment show in figure 3, starting current provides unit 220 to comprise delay circuit 221 and second switch device 222.Wherein said delay circuit 221 is closed in the moment of setting to control said second switch device 222 with said second switch device 222 series connection.Said operating current provides the delay circuit 221 and said second switch device 222 parallel connections after unit 210 and said the series connection.Wherein this delaying current 221 can be any delay circuit as known in the art (also can shown in Fig. 4 embodiment).This second switch device 222 can be a switching tube, transistor etc.Through delay circuit 211 is set, controls the time that this second switch device 222 conductings are set, thereby starting current is provided for Metal halogen lamp.
In the present embodiment, other parts of Metal halogen lamp start-up circuit, with and the description of control principle in can seeing figures.1.and.2 be provided with.According to instruction of the present invention, those skilled in the art can realize the described Metal halogen lamp start-up circuit of present embodiment, have stated with regard to no longer tiring out at this.
Fig. 4 is the circuit theory diagrams according to the Metal halogen lamp start-up circuit of third embodiment of the invention.Embodiment shown in embodiment shown in Fig. 4 and Fig. 2 is basic identical, and its difference is that starting current wherein provides the unit further to comprise delay circuit.Said delay circuit is connected between the power contact 6 of said power supply 100 and said time relay RE1 through the said first switching device S1.Certainly except the concrete structure shown in Fig. 4, this delay circuit also can be the delay circuit of any other structure as known in the art.
As shown in Figure 4, said delay circuit 221 comprises microcontroller chip U2, switching tube Q2, field-effect transistor Q1, the first divider resistance R3 and the second divider resistance R4.The pulse-width signal output PB1 of wherein said microcontroller chip U2 is connected to the base stage of said switching tube Q2, thus the conducting of control switch Q2 and closing.The grounded emitter of said switching tube Q2.The collector electrode of said switching tube Q2 is connected to the grid of said field-effect transistor Q1 through the said second divider resistance R4.The source electrode of said field-effect transistor Q1 is connected to node Vcc-in.The drain electrode of said field-effect transistor Q1 is connected to the power contact 6 of said time relay RE1.The said first divider resistance R3 is connected between the grid and source electrode of said field-effect transistor Q1.
As shown in Figure 4, this delay circuit 221 also can further be included as keeps the better external connected electronic components and parts of work of microcontroller chip U1.Certainly, under suitable situation, these external connected electronic components and parts also can all or part ofly omit, and perhaps adopt other electronic devices and components to substitute.Those skilled in the art can be provided with according to the concrete kind and the circuit actual parameter of microcontroller chip.In the present embodiment; These external connected electronic components and parts of keeping the better work of microcontroller chip U1 can comprise as being connected to the first filter capacitor C1 and the second filter capacitor C2 between node Vcc-in and the ground; Be connected to the resistance R 5 between the base stage of pulse-width signal output PB1 and said switching tube Q2 of said microcontroller chip U2, be connected to the diode D1 of the power end Vcc of node Vcc-in and said microcontroller chip U2.Other FPDPs at said microcontroller chip U2 also can be connected to dropping resistor and the diode of keeping its operate as normal.As between the PB3 port of microcontroller chip U2 and PB4 port, being connected to resistance R 1, be connected to the diode D3 of reverse connection between PB3 port and the ground, can be connected to dropping resistor R2 between PB1 port and the power end Vcc.
In the present embodiment, other parts of Metal halogen lamp start-up circuit, with and principle can be provided with reference to the description among Fig. 2.According to instruction of the present invention, those skilled in the art can realize the described Metal halogen lamp start-up circuit of present embodiment, have stated with regard to no longer tiring out at this.
In the present embodiment,, can further accurately control delay time, make that the startup of Metal halogen lamp is more reliable through using delay circuit.
Though the present invention describes through specific embodiment, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole execution modes that fall in the claim scope of the present invention.
Claims (10)
1. Metal halogen lamp start-up circuit; Comprise that power supply (100), driver module (300) and warp first switching device (S1) are connected to the supply module (200) between said power supply (100) and the said driver module (300); Said driver module (300) from said supply module (200) received current to start said Metal halogen lamp and/or to keep said Metal halogen lamp operate as normal; It is characterized in that; Said supply module (200) comprises being connected between said power supply (100) and the said driver module (300) provides the operating current of the required operating current of said Metal halogen lamp operate as normal that unit (210) is provided for said driver module (300), and is connected between said power supply (100) and the said driver module (300), provides unit (210) for said driver module (300) provides the starting current of the required starting current of said Metal halogen lamp startup unit (220) to be provided jointly with said operating current starting moment.
2. Metal halogen lamp start-up circuit according to claim 1; It is characterized in that; Said starting current provides unit (220) to comprise the time relay (RE1); The normally closed fixed contact (2) that the normally closed moving contact (1) of the said time relay (RE1) is connected to said power supply (100), the said time relay (RE1) through said first switching device (S1) is connected to first current input terminal of said driver module (300); The said time relay (RE1) often open time-delay moving contact (3) ground connection, the said time relay (RE1) often open second current input terminal that time-delay fixed contact (4) is connected to said driver module (300); The power contact (6) of the said time relay (RE1) is connected to earthing contact (5) ground connection of the said power supply (100) and the said time relay (RE1) through said first switching device (S1), and second current input terminal of said driver module (300) is ground connection simultaneously.
3. Metal halogen lamp start-up circuit according to claim 2; It is characterized in that; Said starting current provides unit (220) further to comprise delay circuit (221), and said delay circuit (221) is connected between the power contact (6) of the said power supply (100) and the said time relay (RE1) through said first switching device (S1).
4. Metal halogen lamp start-up circuit according to claim 3; It is characterized in that; Said delay circuit (221) comprises microcontroller chip (U2), switching tube (Q2), field-effect transistor (Q1), first divider resistance (R3) and second divider resistance (R4); The pulse-width signal output of wherein said microcontroller chip (U2) is connected to the base stage of said switching tube (Q2); The grounded emitter of said switching tube (Q2); The collector electrode of said switching tube (Q2) is connected to the grid of said field-effect transistor (Q1) through said second divider resistance (R4); The source electrode of said field-effect transistor (Q1) is connected to said power supply (100) through said first switching device (S1), and the drain electrode of said field-effect transistor (Q1) is connected to the power contact (6) of the said time relay (RE1), and said first divider resistance (R3) is connected between the grid and source electrode of said field-effect transistor (Q1).
5. Metal halogen lamp start-up circuit according to claim 4; It is characterized in that; Said delay circuit (221) further comprises diode (D1); The anode of said diode (D1) is connected to the source electrode of said field-effect transistor (Q1), and the negative electrode of said diode (D1) is connected to the power end (Vcc) of said microcontroller chip (U2).
6. Metal halogen lamp start-up circuit according to claim 4; It is characterized in that; Said delay circuit (221) further comprises first electric capacity (C1) and second electric capacity (C2), and wherein said first electric capacity (C1) and second electric capacity (C2) are parallel between the source electrode and ground of said field-effect transistor (Q1).
7. Metal halogen lamp start-up circuit according to claim 2; It is characterized in that first safeties (F1) between normally closed fixed contact (2) that said starting current provides unit (220) further to comprise to be connected to the said time relay (RE1) and first current input terminal of said driver module (300).
8. Metal halogen lamp start-up circuit according to claim 1; It is characterized in that; Said starting current provides unit (220) to comprise delay circuit (221) and second switch device (222); The series connection of wherein said delay circuit (221) and said second switch device (222) is closed in the moment of setting to control said second switch device (222), and said operating current provides delay circuit (221) and said second switch device (222) parallel connection after unit (210) and said the series connection.
9. according to the described Metal halogen lamp start-up circuit of arbitrary claim among the claim 1-8; It is characterized in that said operating current provides unit (210) to comprise through said first switching device (S1) and is connected to second safeties (F2) between said power supply (100) and the said driver module (300).
10. according to the described Metal halogen lamp start-up circuit of arbitrary claim among the claim 1-8; It is characterized in that; Said driver module (300) comprises ballast (U1); The current input terminal of said ballast (U1) is first current input terminal of said driver module (300), and the earth terminal of said ballast (U1) is second current input terminal of said driver module (300), and the output of said ballast (U1) is connected to the two ends of Metal halogen lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010608383.2A CN102548167B (en) | 2010-12-24 | 2010-12-24 | Start-up circuit of metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010608383.2A CN102548167B (en) | 2010-12-24 | 2010-12-24 | Start-up circuit of metal halide lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102548167A true CN102548167A (en) | 2012-07-04 |
| CN102548167B CN102548167B (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010608383.2A Expired - Fee Related CN102548167B (en) | 2010-12-24 | 2010-12-24 | Start-up circuit of metal halide lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024964A (en) * | 2012-12-24 | 2013-04-03 | 深圳市开立科技有限公司 | Thermal light source start protection circuit and method |
| CN103426683A (en) * | 2013-08-26 | 2013-12-04 | 浙江正泰电器股份有限公司 | Time relay used for metal halide lamp loads |
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| CN2370649Y (en) * | 1999-01-22 | 2000-03-22 | 康佳集团股份有限公司 | Energy saving device for daylight lamp |
| CN2567914Y (en) * | 2002-09-08 | 2003-08-20 | 王志安 | Waste-utilizing energy-saving glow starter for fluorescent lamp |
| US20050168172A1 (en) * | 2004-01-29 | 2005-08-04 | Samsung Electronics Co., Ltd. | Backlight inverter system and control method for starting the same |
| CN101815389A (en) * | 2009-02-19 | 2010-08-25 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Starting device and method and power supply system |
-
2010
- 2010-12-24 CN CN201010608383.2A patent/CN102548167B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2370649Y (en) * | 1999-01-22 | 2000-03-22 | 康佳集团股份有限公司 | Energy saving device for daylight lamp |
| CN2567914Y (en) * | 2002-09-08 | 2003-08-20 | 王志安 | Waste-utilizing energy-saving glow starter for fluorescent lamp |
| US20050168172A1 (en) * | 2004-01-29 | 2005-08-04 | Samsung Electronics Co., Ltd. | Backlight inverter system and control method for starting the same |
| CN101815389A (en) * | 2009-02-19 | 2010-08-25 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Starting device and method and power supply system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024964A (en) * | 2012-12-24 | 2013-04-03 | 深圳市开立科技有限公司 | Thermal light source start protection circuit and method |
| CN103426683A (en) * | 2013-08-26 | 2013-12-04 | 浙江正泰电器股份有限公司 | Time relay used for metal halide lamp loads |
| CN103426683B (en) * | 2013-08-26 | 2015-10-28 | 浙江正泰电器股份有限公司 | The time relay of Metal halogen lamp class load |
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| CN102548167B (en) | 2014-06-11 |
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Granted publication date: 20140611 Termination date: 20181224 |