CN202077234U - Dimmable LED (Light-Emitting Diode) energy-saving lamp - Google Patents
Dimmable LED (Light-Emitting Diode) energy-saving lamp Download PDFInfo
- Publication number
- CN202077234U CN202077234U CN2011201552788U CN201120155278U CN202077234U CN 202077234 U CN202077234 U CN 202077234U CN 2011201552788 U CN2011201552788 U CN 2011201552788U CN 201120155278 U CN201120155278 U CN 201120155278U CN 202077234 U CN202077234 U CN 202077234U
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- power supply
- effect transistor
- field effect
- saving lamp
- led
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a dimmable LED (Light-Emitting Diode) energy-saving lamp, which comprises a switch power supply. The dimmable LED energy-saving lamp is characterized in that the output positive end of the switch power supply is connected with the positive poles of N groups of LED lamp sets connected in parallel, wherein the N is an integer more than 1; the negative poles of the N groups of LED lamp sets are connected with the drains of N field-effect tubes in sequence; the source electrodes of the N field-effect tubes are grounded; the grids of the N field-effect tubes are also respectively connected with a resistor in series and then are connected with the output positive end of the switch power supply, wherein the grids of arbitrary N-1 field-effect tubes are also respectively connected with a control end set of a dimming circuit; and the input end of the dimming circuit is also connected with the switch power supply. In the dimmable LED energy-saving lamp, the current flowing through the LED lamp is constant; the illuminating brightness can be in stepping control by controlling the times of opening and closing the switch so as to achieve a dimming purpose.
Description
Technical field
The utility model relates to the home lighting field, especially a kind of Dimmable LED electricity-saving lamp.
Background technology
At present semiconductor light-emitting-diode (LED) be continue incandescent lamp and fluorescent lamp after the 4th generation lighting source, application widely in people's actual life.Yet present LED illumination, its brightness change control adopts change to flow through the size of LED electric current often.In the time of the needs low-light level, turn down LED brightness, when the needs high brightness, increase the LED electric current.But influencing very important factor of LED life-span is exactly the size of glow current, and big electric current is easy to damage the LED lamp, so when heightening, need big electric current when increasing LED brightness, can seriously reduce the life-span of LED.
The utility model content
Technical problem to be solved in the utility model is, increases brightness at existing Dimmable LED electricity-saving lamp and transfers big electric current to damage the problem of LED lamp easily, provides a kind of current constant, the Multifunctional LED electricity-saving lamp of brightness of illumination grading control.
In order to solve the problems of the technologies described above, the utility model provides a kind of Dimmable LED electricity-saving lamp, comprise Switching Power Supply, it is characterized in that, the output plus terminal of described Switching Power Supply and N(N are for greater than 1 integer) positive pole of group LED lamp group in parallel is connected, the negative pole of this N group LED lamp group is connected with the drain electrode of N field effect transistor successively, the source electrode of this N field effect transistor is ground connection all, grid also is connected with the output plus terminal of described Switching Power Supply after the series resistance respectively, wherein the grid of N-1 field effect transistor also is connected with the control end group of light adjusting circuit respectively arbitrarily, and this light adjusting circuit input also is connected with described Switching Power Supply.
The grid of N described field effect transistor also is connected with the positive pole of N voltage stabilizing didoe successively, and the negative pole of this N voltage stabilizing didoe is ground connection all.
The grid of described field effect transistor also all is connected with the control end of receiver of remote-control sytem.
Good effect of the present utility model is:
1. flow through the current constant of LED lamp, luminous stable, the LED lamp life-span is long, opens number of times by control switch and realizes that brightness of illumination can carry out grading control, realizes the light modulation purpose.
2. circuit structure is simple.
3. by common Infrared remote controller lighting switch is controlled.
Description of drawings
Fig. 1 circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with specific embodiment the utility model is described in further detail.
As shown in Figure 1, a kind of Dimmable LED electricity-saving lamp, comprise Switching Power Supply, the output plus terminal of this Switching Power Supply and N(N are for greater than 1 integer) positive pole of group LED lamp group in parallel is connected, the negative pole of this N group LED lamp group is connected with the drain electrode of N field effect transistor successively, the source electrode of this N field effect transistor is ground connection all, and grid is all connected respectively and is connected with the output plus terminal of Switching Power Supply behind the resistance.The grid of N field effect transistor also is connected with the positive pole of N voltage stabilizing didoe successively, and the negative pole of this N voltage stabilizing didoe is ground connection all.Wherein the grid of N-1 field effect transistor is connected with the positive pole of N-1 diode successively arbitrarily, and the negative pole of this N-1 diode is connected with the control end group of light adjusting circuit respectively, and this light adjusting circuit input also is connected with Switching Power Supply.The grid of N field effect transistor also is connected with the positive pole of N diode successively, and the negative pole of this N diode all is connected with the control end of receiver of remote-control sytem.
Operation principle of the present utility model: closed mains switch K, output DC was LED lamp group power supply in parallel after Switching Power Supply was carried out rectification, filtering and voltage stabilizing to civil power, and the grid of N field effect transistor triggers after receiving high voltage, and LED lamp group all work is luminous.
Light adjusting circuit is counted the switch number of times of mains switch K, number of each disconnecting power switch K note.As the disconnecting power switch K first time, when closed mains switch K once more, the grounded-grid of a field effect transistor of light adjusting circuit control, output low level, this field effect transistor is turn-offed, the LED lamp group corresponding outage with this field effect transistor, the brightness of LED lamp reduces one-level, when disconnecting power switch K once more, during closed again mains switch K, the grounded-grid of second field effect transistor of light adjusting circuit control, the LED lamp group outage corresponding with this field effect transistor, and the field effect transistor of previous stage can not trigger energising, this moment, the brightness of LED electricity-saving lamp reduced one-level once more, so repeatedly, to the last having only a LED lamp group luminous, at this moment is the minimum brightness grade of LED electricity-saving lamp.If the power cutoff switch is closed more once more, this moment, LED lamp group was all lighted, and entered the next circulation of regulating brightness degree.
The utility model is switched on the brightest for the first time, later every disconnection again closure once, brightness is deepening successively, to the last one group.
The effect of voltage stabilizing didoe is to make the field effect transistor steady operation, thereby makes LED lamp group stabilized illumination.
Receiver of remote-control sytem receives control of remote controller, realizes LED electricity-saving lamp switch is controlled.The use common remote controller can realize the remote control to this electricity-saving lamp, but remote controller can only be realized the standard-sized sheet or the complete shut-down of lamp, can not regulate brightness degree.
Multifunctional household LED electricity-saving lamp of the present utility model flows through the current constant of LED lamp, opens number of times by control switch, realizes making brightness of illumination can carry out grading control by the control program of light adjusting circuit according to inner setting, realizes the light modulation purpose.The utility model circuit structure is simple, and luminous stable, the LED lamp life-span is long.
Under the condition of normal domestic use, level of illumination need not be too many, if brightness degree is too many, can cause the user to use trouble.Therefore three brightness degrees of general design are basic just enough to be used.
The foregoing description of the present utility model only is to be explanation the utility model example, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other multi-form variation and changes on the basis of the above description.Here can't give exhaustive to all execution modes.Everyly belong to the row that conspicuous variation that the technical solution of the utility model amplifies out or change still are in protection range of the present utility model.
Claims (3)
1. Dimmable LED electricity-saving lamp, comprise Switching Power Supply, it is characterized in that, the output plus terminal of described Switching Power Supply and N(N are for greater than 1 integer) positive pole of group LED lamp group in parallel is connected, the negative pole of this N group LED lamp group is connected with the drain electrode of N field effect transistor successively, the source electrode of this N field effect transistor is ground connection all, grid also is connected with the output plus terminal of described Switching Power Supply after the series resistance respectively, wherein the grid of N-1 field effect transistor also is connected with the control end group of light adjusting circuit respectively arbitrarily, and this light adjusting circuit input also is connected with described Switching Power Supply.
2. Dimmable LED electricity-saving lamp according to claim 1 is characterized in that, the grid of N described field effect transistor also is connected with the positive pole of N voltage stabilizing didoe successively, and the negative pole of this N voltage stabilizing didoe is ground connection all.
3. Dimmable LED electricity-saving lamp according to claim 1 is characterized in that, the grid of described field effect transistor also all is connected with the control end of receiver of remote-control sytem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201552788U CN202077234U (en) | 2011-05-16 | 2011-05-16 | Dimmable LED (Light-Emitting Diode) energy-saving lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201552788U CN202077234U (en) | 2011-05-16 | 2011-05-16 | Dimmable LED (Light-Emitting Diode) energy-saving lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202077234U true CN202077234U (en) | 2011-12-14 |
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ID=45115308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201552788U Expired - Fee Related CN202077234U (en) | 2011-05-16 | 2011-05-16 | Dimmable LED (Light-Emitting Diode) energy-saving lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202077234U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102858061A (en) * | 2012-08-17 | 2013-01-02 | 王知康 | LED (light-emitting diode) power supply circuit controlled by multiple sections of switches |
| CN103906297A (en) * | 2012-12-28 | 2014-07-02 | 欧普照明股份有限公司 | A light source drive circuit and a lamp with the drive circuit |
-
2011
- 2011-05-16 CN CN2011201552788U patent/CN202077234U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102858061A (en) * | 2012-08-17 | 2013-01-02 | 王知康 | LED (light-emitting diode) power supply circuit controlled by multiple sections of switches |
| CN103906297A (en) * | 2012-12-28 | 2014-07-02 | 欧普照明股份有限公司 | A light source drive circuit and a lamp with the drive circuit |
| CN103906297B (en) * | 2012-12-28 | 2016-12-28 | 欧普照明股份有限公司 | Light source driving circuit and there is the light fixture of this drive circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20130516 |