CN201047522Y - Circuit structure of LED illuminating device - Google Patents
Circuit structure of LED illuminating device Download PDFInfo
- Publication number
- CN201047522Y CN201047522Y CNU2007201518437U CN200720151843U CN201047522Y CN 201047522 Y CN201047522 Y CN 201047522Y CN U2007201518437 U CNU2007201518437 U CN U2007201518437U CN 200720151843 U CN200720151843 U CN 200720151843U CN 201047522 Y CN201047522 Y CN 201047522Y
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- diode
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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
Abstract
The utility model discloses the circuit structure of an LED lighting device and comprises a power source input end, a power source output end, a fuse and at least one LED; the utility model is characterized in that the utility model also comprises a resistance and voltage regulator diodes in the same amount with that of the LEDs; the LEDs are connected together in series, and each LED is connected with one voltage regulator diode with higher working voltage in parallel; the resistance is arranged on the output conducting wire of the power source output end to an LED series circuit. The utility model has the advantages of energy saving and stable brightness of the LED lamp, etc.
Description
Technical field
The utility model relates to a kind of circuit structure of LED light-emitting device.
Background technology
LED, just light emitting diode has advantages such as volume is little, bulb does not have filament, save electric power, the life-span is long, light that send is even, and the trend that replaces the traditional lighting light source is arranged greatly.But present LED circuit for lamp (referring to accompanying drawing 1) has following defective: 1) the existing normally used circuit of LED lamp is because the electric current by resistance causes heating, and and the quantity of resistance be directly proportional, this heating causes importing the waste for no reason of electric power; Because LED itself is the product of a low energy consumption, such circuit does not embody its advantage fully, and this is for being not a shortcoming.2) also have, resistance and input voltage are directly proportional, for reach certain electric current along with the change luminosity of input voltage also along with change, this also is a shortcoming.
The utility model content
The technical problems to be solved in the utility model provides a kind of circuit structure of LED light-emitting device.This circuit structure is the diode of a voltage stabilizing higher than operating voltage in parallel on each LED, and whole LED is connected in series, and can not cause waste of electric energy like this; In addition, resistance changes a definite value electric current diode into, even voltage changes to some extent like this, the brightness of LED can not change to some extent yet.
A circuit like this.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: it comprises power input, power output end, fuse and at least one LED; It also comprises resistance and the Zener diode identical with LED quantity; Be connected in series between the described LED, and the diode of a voltage stabilizing higher than its operating voltage in parallel on each LED; On the lead of LED series circuit output, be provided with a resistance at power input.
Further improve, the resistance that is provided with on the lead of LED series circuit output at power input changes definite value electric current diode into.
Further improve, when power supply is input as alternating current, between power input and power output end, be provided with the diode bridge fairing.
Operation principle of the present utility model is as follows:
When this circuit was lighted as LED, the operating voltage of LED was littler than voltage of voltage regulation, at this moment the obstructed overcurrent of Zener diode and by the unconverted LED that flows to of electric current of directional current diode control.In addition, the Zener diode of parallel connection has electric current and passes through when LED breaks, and entire circuit also can continue to pass through electric current.At this moment the voltage that the electric current diode decide in input only reduces the voltage of voltage regulation part, adjusts owing to deciding the electric current that the electric current diode self passes through, and only flows through a certain amount of electric current.Even Duan Xian LED reduces whole LED quantity like this, can not cause too big difference to the luminosity of whole LED yet.
The utlity model has advantages such as energy-conservation and LED lamp brightness stability.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail
Fig. 1 is a kind of embodiment electrical block diagram of the present utility model;
Fig. 2 is an another kind of embodiment electrical block diagram of the present utility model.
The specific embodiment
Embodiment 1
Referring to shown in Figure 1, the utility model comprises power input 1, power output end 2, fuse 3 and the LED4 that is cascaded; It also comprises resistance 5 and the Zener diode 6 identical with LED4 quantity; Be connected in series between the described LED4, and the diode 6 of a voltage stabilizing higher than its operating voltage in parallel on each LED4; On the lead of LED4 series circuit output, be provided with resistance 5 at power input 1.
Improve further, when power supply is input as alternating current, between power input 1 and power output end 2, be provided with diode bridge fairing 7.
Referring to shown in Figure 2, repeat embodiment 1, its difference only is: what be provided with on the lead of LED4 series circuit output at power input 1 is a definite value electric current diode 8.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to the row that conspicuous variation that the technical solution of the utility model extends out or change still are in protection domain of the present utility model.
Claims (3)
1. the circuit structure of a LED light-emitting device, it comprises power input, power output end, fuse and at least one LED; It is characterized in that: it also comprises resistance and the Zener diode identical with LED quantity; Be connected in series between the described LED, and the diode of a voltage stabilizing higher than its operating voltage in parallel on each LED; On the lead of LED series circuit output, be provided with a resistance at power input.
2. the circuit structure of LED light-emitting device according to claim 1 is characterized in that: the resistance that is provided with on the lead of LED series circuit output at power input changes definite value electric current diode into.
3. the circuit structure of LED light-emitting device according to claim 1 and 2 is characterized in that: when power supply is input as alternating current, be provided with the diode bridge fairing between power input and power output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201518437U CN201047522Y (en) | 2007-06-13 | 2007-06-13 | Circuit structure of LED illuminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201518437U CN201047522Y (en) | 2007-06-13 | 2007-06-13 | Circuit structure of LED illuminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201047522Y true CN201047522Y (en) | 2008-04-16 |
Family
ID=39300105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201518437U Expired - Fee Related CN201047522Y (en) | 2007-06-13 | 2007-06-13 | Circuit structure of LED illuminating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201047522Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102348308A (en) * | 2010-08-06 | 2012-02-08 | 先益电子工业股份有限公司 | Light emitting diode (LED) driving circuit |
| CN103470997A (en) * | 2013-05-13 | 2013-12-25 | 杭州璞莱科技有限公司 | Output circuit of wire-saving LED (light-emitting diode) lamp string cluster |
| CN103945589A (en) * | 2009-05-28 | 2014-07-23 | Lynk实验室公司 | Multi-voltage And Multi-brightness Led Lighting Devices And Methods Of Using Same |
-
2007
- 2007-06-13 CN CNU2007201518437U patent/CN201047522Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103945589A (en) * | 2009-05-28 | 2014-07-23 | Lynk实验室公司 | Multi-voltage And Multi-brightness Led Lighting Devices And Methods Of Using Same |
| CN103945589B (en) * | 2009-05-28 | 2016-12-07 | Lynk实验室公司 | Multivoltage and many brightness led lighting devices and the method using them |
| CN102348308A (en) * | 2010-08-06 | 2012-02-08 | 先益电子工业股份有限公司 | Light emitting diode (LED) driving circuit |
| CN103470997A (en) * | 2013-05-13 | 2013-12-25 | 杭州璞莱科技有限公司 | Output circuit of wire-saving LED (light-emitting diode) lamp string cluster |
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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: 20080416 Termination date: 20110613 |