CN103687161A - Delay energy-saving lamp circuit and lamp - Google Patents
Delay energy-saving lamp circuit and lamp Download PDFInfo
- Publication number
- CN103687161A CN103687161A CN201210362587.1A CN201210362587A CN103687161A CN 103687161 A CN103687161 A CN 103687161A CN 201210362587 A CN201210362587 A CN 201210362587A CN 103687161 A CN103687161 A CN 103687161A
- Authority
- CN
- China
- Prior art keywords
- lighting load
- switching tube
- lamp
- rectifier bridge
- triode
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention is applicable to the field of electronic lighting and provides a delay energy-saving lamp circuit and a lamp which are used for controlling and driving lighting of a lighting load. The delay energy-saving lamp circuit comprises a transformer, a rectifier bridge, a switching tube, a trigger switch, an energy storage capacitor and the like, wherein the transformer includes a primary coil and a secondary coil which are mutually coupled, the transformer is electrically connected between an alternating-current power supply and the lighting load, the rectifier bridge is connected in series between the power supply and the primary coil or between the secondary coil and the lighting load, and the switching tube is used for controlling work of the rectifier bridge. The invention further provides a lamp including the delay energy-saving lamp circuit. Delay control is realized through combination of the switching tube and the energy storage capacitor. When the trigger switch is switched off, the energy storage capacitor discharges electricity, and the switching tube can continue to be switched on for a period of time; and when the voltage of the energy storage capacitor drops too much to maintain the switching tube in a switched-on state, the power supply of the transformer is cut off, and the lighting load goes out. Therefore, the lamp can be automatically turned off after being in a turned-on state for a period of time and has a delay energy-saving effect.
Description
Technical field
The invention belongs to electrical lighting field, relate in particular to a kind of time-delay energy-saving circuit for lamp and light fixture.
Background technology
At present, LED, as a kind of new type light source, is conventionally driven and is controlled by integrated circuit, the input power connection of control circuit, and lamp is just lighted, and has features simple and reliable, energy-conserving and environment-protective.
But general control circuit for light source exists switching function single, the Kai Heguan of light fixture wants manual shortcoming, the local required effect easy to use such as can not meet in corridor, bedroom, can not play the feature of energy-conserving and environment-protective simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of delay effect that has, the time-delay energy-saving circuit for lamp that light fixture is opened automatically turn off after a period of time, is intended to solve existing lamp driving circuit and exists switching function single, and the Kai Heguan of light fixture wants manual problem.
The embodiment of the present invention is achieved in that a kind of time-delay energy-saving circuit for lamp, and for controlling the illumination that drives lighting load, described time-delay energy-saving circuit for lamp comprises:
Transformer, comprises the primary coil and the secondary coil that intercouple, and described transformer is connected electrically between AC power and described lighting load;
Rectifier bridge, an input of described rectifier bridge is connected with an end in described AC power, another input of described rectifier bridge is connected with an input of described primary coil, and another input of described primary coil is connected with another end of described AC power; Or, an input of described rectifier bridge is connected with an output of described secondary coil, another input of described rectifier bridge is connected with the first link of described lighting load, and the second link of described lighting load is connected with another output of described primary coil;
Switching tube, the input of described switching tube is connected with the anode output end of described rectifier bridge, the output of described switching tube is connected with the cathode end of described rectifier bridge, the control end of described switching tube is connected with the anode output end of described rectifier bridge by trigger switch, and is connected with the cathode end of described rectifier bridge by storage capacitor.
In a preferred embodiment; described time-delay energy-saving circuit also comprises the protection module in parallel with described lighting load; described protection module comprises electrochemical capacitor C2 and electrochemical capacitor C3; the positive pole of described electrochemical capacitor C2 is connected with the positive pole of electrochemical capacitor C3, and the negative pole of the negative pole of described electrochemical capacitor C2 and electrochemical capacitor C3 is connected with the first link, second link of described lighting load successively.
In a preferred embodiment, described switching tube is one-way SCR, and the input of described switching tube, output, control end are followed successively by anode, negative electrode, the control utmost point of described one-way SCR.
In a preferred embodiment, described switching tube comprises triode Q1 and triode Q2, wherein,
Described triode Q1 is positive-negative-positive triode, described triode Q2 is NPN type triode, the base stage of described triode Q1 is connected with the collector electrode of described triode Q2, the emitter of described triode Q1 is as the input of described switching tube 200, the emitter of described triode Q2 is as the output of described switching tube, and the collector electrode of described triode Q1 is as the control end of described switching tube 200 and be connected with the base stage of described triode Q2.
In a preferred embodiment, described time-delay energy-saving circuit for lamp also comprises and is connected to the current-limiting resistance between described switch controlled end and described trigger switch and is connected to the anode output end of described rectifier bridge and the isolating diode between trigger switch, the anode of described isolating diode is connected with the anode output end of described rectifier bridge, and the negative electrode of described isolating diode is connected with one end of described trigger switch.
Another object of the embodiment of the present invention is the light fixture that provides a kind of, and this light fixture comprises lighting load, above-mentioned time-delay energy-saving circuit for lamp, and described time-delay energy-saving circuit for lamp is for controlling the illumination that drives described lighting load.
In a preferred embodiment, described lighting load comprises a plurality of LED lamp row that are connected in parallel, described, described LED lamp row comprise take the Equations of The Second Kind LED lamp row of the first kind LED lamp row of the first link that negative electrode is described lighting load, the second link that the anode of take is described lighting load and the first link that the anode of take is described lighting load, the second link that the negative electrode of take is described lighting load, and the anode of LED and the negative electrode of next LED in described LED lamp row are connected.
Above-mentioned time-delay energy-saving circuit for lamp is by the connection of operation trigger switch, and AC power is to storage capacitor quick charge, and storage capacitor provides trigger current to switching tube simultaneously, makes switching tube conducting, the secondary coil output AC electricity of transformer, and lighting load is lighted; After trigger switch disconnects, storage capacitor electric discharge, switching tube can continue conducting a period of time, and when the voltage drop of storage capacitor is to can not maintain switching tube conducting time, the power supply of transformer is cut off, and lighting load is extinguished.So reached after making light fixture open a period of time and automatically turned off, there is the effect of time-delay energy-saving.
Accompanying drawing explanation
The module map of the time-delay energy-saving circuit for lamp that Fig. 1 provides for first embodiment of the invention;
The circuit structure diagram of the time-delay energy-saving circuit for lamp that Fig. 2 provides for first embodiment of the invention;
The module map of the time-delay energy-saving circuit for lamp that Fig. 3 provides for second embodiment of the invention;
The circuit structure diagram of the time-delay energy-saving circuit for lamp that Fig. 4 provides for second embodiment of the invention;
The circuit structure diagram of the time-delay energy-saving circuit for lamp that Fig. 5 provides for third embodiment of the invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The modular structure of the time-delay energy-saving circuit for lamp providing for a preferred embodiment as shown in Figure 1.Time-delay energy-saving circuit for lamp is used for controlling the illumination that drives lighting load 100,, time-delay energy-saving circuit for lamp comprises: transformer T1, rectifier bridge BR1, switching tube 200 etc.
Transformer T1 comprises primary coil and the secondary coil intercoupling, and transformer T1 is connected electrically between AC power and lighting load.The alternating voltage that is appreciated that exportable 220 volts or 110 volts of AC power, transformer T1 selects the adjustable transformer of turn ratio, for mating the output voltage of AC power and the power of lighting load.
An input 1 of rectifier bridge BR1 is connected with an end in AC power, and another input 2 of rectifier bridge BR1 is connected with an input of primary coil, and another input of primary coil is connected with another end of AC power; Or an input 1 of rectifier bridge BR1 is connected with an output of secondary coil, another input 2 of rectifier bridge BR1 is connected with the first link of lighting load, and the second link of lighting load is connected with another output of primary coil.
The input a of switching tube 200 is connected with the anode output end of rectifier bridge BR1, the output b of switching tube 200 is connected with the cathode end of rectifier bridge BR1, the control end c of switching tube 200 is connected with the anode output end of rectifier bridge BR1 by trigger switch S1, and is connected with the cathode end of rectifier bridge BR1 by storage capacitor C1.
Above-mentioned time-delay energy-saving circuit for lamp is by the connection of operation trigger switch S1, AC power is to storage capacitor C1 quick charge, and storage capacitor C1 provides trigger current to switching tube 200 simultaneously, makes switching tube 200 conductings, the secondary coil output AC electricity of transformer T1, lighting load 100 is lighted; After trigger switch S1 disconnects, storage capacitor C1 electric discharge, switching tube 200 can continue conducting a period of time, and when the voltage drop of storage capacitor C1 is to can not maintain switching tube 200 conducting time, the power supply of transformer T1 is cut off, and lighting load 100 is extinguished.So reached after making light fixture open a period of time and automatically turned off, there is the effect of time-delay energy-saving.
As shown in Fig. 1 to 5, can find out, rectifier bridge BR1 is access between AC power and transformer T1 or be access between transformer T1 and lighting load 100, Fig. 1 with shown in Fig. 2, be that rectifier bridge BR1 is connected to the wherein a kind of situation that connecting line is upper that AC power is connected with transformer T1; Shown in Fig. 3,4,5 is to be connected to the wherein a kind of situation that connecting line is upper that transformer T1 is connected with lighting load 100.So, the connection of trigger switch S1, during switching tube 200 conducting, the current supply circuit ability conducting between AC power, transformer T1 and lighting load 100, lighting load 100 is lighted, and by the break-make of control switch pipe 200, can control lighting load 100 and light, extinguishes.
Storage capacitor C1 can be according to the actual conditions needs of delay duration, and selecting capacity is the capacitor element of 100 μ F or 1000 μ F etc.
As shown in Figure 2,4; in a preferred embodiment; time-delay energy-saving circuit for lamp also comprises the protection module 300 being connected in parallel with lighting load 100; protection module 300 comprises electrochemical capacitor C2 and electrochemical capacitor C3; the positive pole of electrochemical capacitor C2 is connected with the positive pole of electrochemical capacitor C3, and the negative pole of the negative pole of electrochemical capacitor C2 and electrochemical capacitor C3 is connected with the first link, second link of lighting load 100 successively.Protection module 300 is avoided light fixture to open moment consequently burning compared with heavy current impact LED, the withstand voltage secondary coil output voltage higher than transformer T1 of electrochemical capacitor C2 and electrochemical capacitor C3.
In a preferred embodiment, switching tube 200 is one-way SCR VS, the input a of switching tube 200, output b, control end c are followed successively by anode, negative electrode, the control utmost point of one-way SCR VS, in the present embodiment, during the connection of trigger switch S1, AC power is to storage capacitor C1 charging, one-way SCR VS when the voltage of storage capacitor C1 arrives the conducting voltage of one-way SCR VS; After trigger switch S1 disconnects, storage capacitor C1 electric discharge, one-way SCR VS can continue conducting a period of time, when the voltage drop of storage capacitor C1 is to can not maintain one-way SCR VS conducting time.
As shown in Figure 5, in a further advantageous embodiment, switching tube 200 comprises triode Q1 and triode Q2, wherein triode Q1 is positive-negative-positive triode, triode Q2 is NPN type triode, and the base stage of triode Q1 is connected with the collector electrode of triode Q2, and the emitter of triode Q1 is as the input a of switching tube 200, the emitter of triode Q2 is as the output b of switching tube 200, and the collector electrode of triode Q1 is as the control end c of switching tube 200 and be connected with the base stage of triode Q2.In the present embodiment, during the connection of trigger switch S1, AC power is charged to storage capacitor C1, triode Q2 conducting when the voltage of storage capacitor C1 arrives the conducting voltage of triode Q2, the current potential of triode Q1 base stage is dragged down, triode Q1 conducting, so switching tube 200 conductings; After trigger switch S1 disconnects, storage capacitor C1 electric discharge, triode Q2 can continue conducting a period of time, when the voltage drop of storage capacitor C1 is to can not maintain triode Q2 conducting time, switching tube 200 disconnections.
Trigger switch S1 is for controlling the work of time-delay energy-saving circuit for lamp, and trigger switch S1 can be used touch-switch also can use self-lock switch.Wherein, trigger switch S1 can be used the modes such as button, sound, light, temperature to trigger its break-make.
In a preferred embodiment, time-delay energy-saving circuit for lamp also comprises and is connected to the current-limiting resistance R1 between switching tube 200 control ends and trigger switch and is connected to the anode output end of rectifier bridge BR1 and the isolating diode D1 between trigger switch, the anode of isolating diode D1 is connected with the anode output end of rectifier bridge BR1, and the negative electrode of isolating diode D1 is connected with one end of trigger switch.Be understandable that, coordinate the variation of other parameters in the present embodiment, current-limiting resistance R1 and isolating diode D1 can omit, or current-limiting resistance R1 can utilize, and a plurality of resistor strings are in parallel to be replaced.
Below in conjunction with Fig. 2, the operation principle of time-delay energy-saving circuit for lamp is described with an embodiment.
Connect after AC power, press trigger switch S1, the 220V civil power of AC power is by primary coil, rectifier bridge BR1, the isolating diode D1 of transformer T1, to storage capacitor C1 quick charge, through current-limiting resistance R1, to one-way SCR VS, input trigger current simultaneously, make one-way SCR VS conducting, at this moment the secondary coil output AC of transformer T1 is electric, and lighting load 100 is lighted.After trigger switch S1 disconnects, storage capacitor C1 electric discharge, one-way SCR VS continues conducting, after time delay after a while, the voltage drop of storage capacitor C1 is to can not maintain one-way SCR VS conducting time, and one-way SCR VS turn-offs, and the power supply of transformer T1 is cut off, lighting load 100 is extinguished, now no longer power consumption of time-delay energy-saving circuit for lamp itself.LED lights the time, and mainly the parameter by storage capacitor C1 and current-limiting resistance R1 determines.So, reached after making light fixture open a period of time and automatically turned off, there is the effect of time-delay energy-saving, can be widely used in and make desk lamp, corridor lamp etc.
Another object of the embodiment of the present invention is the light fixture that comprises above-mentioned time-delay energy-saving circuit for lamp that provides a kind of.As shown in Figure 2,3, this light fixture comprises lighting load 100, above-mentioned time-delay energy-saving circuit for lamp, and described time-delay energy-saving circuit for lamp is for controlling the illumination that drives lighting load 100, and time-delay energy-saving circuit for lamp comprises:
Transformer T1, comprises the primary coil and the secondary coil that intercouple, and transformer T1 is connected electrically between AC power and lighting load 100;
Rectifier bridge BR1, an input 1 of rectifier bridge BR1 is connected with an end in AC power, and another input 2 of rectifier bridge BR1 is connected with an input of primary coil, and another input of primary coil is connected with another end of AC power; Or an input 1 of rectifier bridge BR1 is connected with an output of secondary coil, another input 2 of rectifier bridge BR1 is connected with the first link of lighting load 100, and the second link of lighting load 100 is connected with another output of primary coil.
As shown in Fig. 2,4,5, in a preferred embodiment, lighting load 100 comprises a plurality of LED lamp row (figure is mark not) that are connected in parallel, LED lamp is listed as by a plurality of LED serial connections and forms, LED lamp row comprise take the Equations of The Second Kind LED lamp row 120 of the second link that the first kind LED lamp row 110 of the first link that negative electrode is lighting load 100, the second link that the anode of take is lighting load 100 and the first link that the anode of take is lighting load 100, the negative electrode of take be lighting load 100, and the anode of LED and the negative electrode of next LED in LED lamp row are connected.In the present embodiment, lighting load 100 comprises 4 LED lamps row, and wherein two have 4 first kind LED lamp row 110 that are connected in series LED and two and have 4 Equations of The Second Kind LED lamp row 120 that are connected in series LED.In other embodiments, lighting load 100 comprises the LED lamp row such as two, six or eight, wherein first kind LED lamp row 110 are identical with Equations of The Second Kind LED lamp row 120, and the LED number that first kind LED lamp row 110 and Equations of The Second Kind LED lamp row 120 have can be 1,2,3,5 or 6 etc.
Particularly, positive half period first kind LED lamp row 110 conductings of the secondary coil output voltage of transformer T1,120 conductings of negative half-cycle Equations of The Second Kind LED lamp row, the heat radiation that is so conducive to LED again its work increases life-span, because LED has the twilight sunset of several milliseconds, so cannot see LED lamp, be listed as brilliant flicker.If change the power of light fixture, just increase or reduce the quantity of LED, adjust the parameter (turn ratio) of transformer T1 simultaneously.In other embodiments, lighting load 100 can be used common tungsten lamp.
The time-delay energy-saving circuit for lamp of above-mentioned light fixture is by the connection of operation trigger switch S1, AC power is to storage capacitor C1 quick charge, storage capacitor C1 provides trigger current to switching tube 200 simultaneously, make switching tube 200 conductings, the secondary coil output AC electricity of transformer T1, lighting load 100 is lighted; After trigger switch S1 disconnects, storage capacitor C1 electric discharge, switching tube 200 can continue conducting a period of time, and when the voltage drop of storage capacitor C1 is to can not maintain switching tube 200 conducting time, the power supply of transformer T1 is cut off, and lighting load 100 is extinguished.So reached after making light fixture open a period of time and automatically turned off, there is the effect of time-delay energy-saving.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a time-delay energy-saving circuit for lamp, for controlling the illumination that drives lighting load, is characterized in that, described time-delay energy-saving circuit for lamp comprises:
Transformer, comprises the primary coil and the secondary coil that intercouple, and described transformer is connected electrically between AC power and described lighting load;
Rectifier bridge, an input of described rectifier bridge is connected with an end in described AC power, another input of described rectifier bridge is connected with an input of described primary coil, and another input of described primary coil is connected with another end of described AC power; Or, an input of described rectifier bridge is connected with an output of described secondary coil, another input of described rectifier bridge is connected with the first link of described lighting load, and the second link of described lighting load is connected with another output of described primary coil;
Switching tube, the input of described switching tube is connected with the anode output end of described rectifier bridge, the output of described switching tube is connected with the cathode end of described rectifier bridge, the control end of described switching tube is connected with the anode output end of described rectifier bridge by trigger switch, and is connected with the cathode end of described rectifier bridge by storage capacitor.
2. time-delay energy-saving circuit for lamp as claimed in claim 1; it is characterized in that; described time-delay energy-saving circuit also comprises the protection module in parallel with described lighting load; described protection module comprises electrochemical capacitor C2 and electrochemical capacitor C3; the positive pole of described electrochemical capacitor C2 is connected with the positive pole of electrochemical capacitor C3, and the negative pole of the negative pole of described electrochemical capacitor C2 and electrochemical capacitor C3 is connected with the first link, second link of described lighting load successively.
3. time-delay energy-saving circuit for lamp as claimed in claim 1, is characterized in that, described switching tube is one-way SCR, and the input of described switching tube, output, control end are followed successively by anode, negative electrode, the control utmost point of described one-way SCR.
4. time-delay energy-saving circuit for lamp as claimed in claim 1, is characterized in that, described switching tube comprises triode Q1 and triode Q2, wherein,
Described triode Q1 is positive-negative-positive triode, described triode Q2 is NPN type triode, the base stage of described triode Q1 is connected with the collector electrode of described triode Q2, the emitter of described triode Q1 is as the input of described switching tube, the emitter of described triode Q2 is as the output of described switching tube, and the collector electrode of described triode Q1 is as the control end of described switching tube and be connected with the base stage of described triode Q2.
5. time-delay energy-saving circuit for lamp as claimed in claim 1, it is characterized in that, described time-delay energy-saving circuit for lamp also comprises and is connected to the current-limiting resistance between described switch controlled end and described trigger switch and is connected to the anode output end of described rectifier bridge and the isolating diode between trigger switch, the anode of described isolating diode is connected with the anode output end of described rectifier bridge, and the negative electrode of described isolating diode is connected with one end of described trigger switch.
6. a light fixture, comprises lighting load, it is characterized in that, also comprises the time-delay energy-saving circuit for lamp as described in claim 1 to 5 any one, and described time-delay energy-saving circuit for lamp is for controlling the illumination that drives described lighting load.
7. light fixture as claimed in claim 6, it is characterized in that, described lighting load comprises a plurality of LED lamp row that are connected in parallel, described LED lamp is listed as by a plurality of LED serial connections and forms, described LED lamp row comprise take the Equations of The Second Kind LED lamp row of the first kind LED lamp row of the first link that negative electrode is described lighting load, the second link that the anode of take is described lighting load and the first link that the anode of take is described lighting load, the second link that the negative electrode of take is described lighting load, and the anode of LED and the negative electrode of next LED in described LED lamp row are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210362587.1A CN103687161A (en) | 2012-09-26 | 2012-09-26 | Delay energy-saving lamp circuit and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210362587.1A CN103687161A (en) | 2012-09-26 | 2012-09-26 | Delay energy-saving lamp circuit and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103687161A true CN103687161A (en) | 2014-03-26 |
Family
ID=50323086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210362587.1A Pending CN103687161A (en) | 2012-09-26 | 2012-09-26 | Delay energy-saving lamp circuit and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103687161A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892354Y (en) * | 2006-04-14 | 2007-04-25 | 襄樊学院 | Combined circuit of delayed electricity breaking energy saving electric iron support |
| US8018171B1 (en) * | 2007-03-12 | 2011-09-13 | Cirrus Logic, Inc. | Multi-function duty cycle modifier |
-
2012
- 2012-09-26 CN CN201210362587.1A patent/CN103687161A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892354Y (en) * | 2006-04-14 | 2007-04-25 | 襄樊学院 | Combined circuit of delayed electricity breaking energy saving electric iron support |
| US8018171B1 (en) * | 2007-03-12 | 2011-09-13 | Cirrus Logic, Inc. | Multi-function duty cycle modifier |
Non-Patent Citations (1)
| Title |
|---|
| 秩名: "交流LED节能延时灯自制介绍", 《电子发烧友》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202721866U (en) | New type driving circuit which is compatible with LED lamp tube | |
| CN101657057A (en) | LED power circuit | |
| CN107666744A (en) | LED touch stepless dimming color-temperature regulating driving power and its control method | |
| CN105142282A (en) | MCU-based LED sectional type alternative conduction circuit and driving method thereof | |
| CN205005298U (en) | LED lamps and lanterns of switch mixing of colors and control circuit thereof | |
| CN104540271B (en) | A kind of self-adaptation type LED drive circuit | |
| CN103037560A (en) | Automatic dimming emergency lamp | |
| CN205005309U (en) | LED sectional type switches on circuit in turn based on MCU | |
| CN202310232U (en) | Miniwatt LED light illumination system | |
| CN204350368U (en) | A kind of self-adaptation type LED drive circuit | |
| CN204906820U (en) | Automatic constant current drive device and LED lamps and lanterns of balanced LED lamp cross luma degree | |
| CN102149245B (en) | Electronic ballast of efficient and light-adjustable gas discharge lamp | |
| CN102413609A (en) | Low-power illuminating system with LED (light-emitting diode) lamps | |
| CN202103927U (en) | Light-adjustable gas discharge lamp electronic ballast | |
| CN205938683U (en) | Emergency light area | |
| CN201680198U (en) | LED lamp capable of changing color temperature | |
| CN205356748U (en) | Overcurrent protection lamps and lanterns | |
| CN203761636U (en) | Universal alternating-current LED lamp | |
| CN103687161A (en) | Delay energy-saving lamp circuit and lamp | |
| CN2840520Y (en) | Remote-control energy-saving switch | |
| CN203896537U (en) | Lighting switch having time delay function | |
| CN203151799U (en) | LED infrared automatic induction lamp | |
| CN201509348U (en) | LED power circuit | |
| CN202077234U (en) | Dimmable LED (Light-Emitting Diode) energy-saving lamp | |
| CN106016015B (en) | A kind of emergency light band |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |