CN201204724Y - Control circuit for high brightness LED lamp - Google Patents
Control circuit for high brightness LED lamp Download PDFInfo
- Publication number
- CN201204724Y CN201204724Y CNU2008200464025U CN200820046402U CN201204724Y CN 201204724 Y CN201204724 Y CN 201204724Y CN U2008200464025 U CNU2008200464025 U CN U2008200464025U CN 200820046402 U CN200820046402 U CN 200820046402U CN 201204724 Y CN201204724 Y CN 201204724Y
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- Prior art keywords
- brightness led
- control circuit
- led
- brightness
- circuit
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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 a control circuit of high brightness LED lamp, comprising a high brightness LED optical module group, a high brightness LED drive circuit and high brightness LED lamps composed by switch power supply connected in sequence. The high brightness LED lamp is equipped with a high brightness LED drive control circuit which can conveniently control the illumination brightness of the LED illumination apparatus, satisfy the energy-saving requirement of half brightness in off-peak period without influencing light distribution evenness. The utility model can be widely used in high brightness LED road lamp, high brightness LED light projector and LED illumination apparatus like that.
Description
Technical field
The utility model relates to the illumination control circuit field, specifically a kind of control circuit of high-brightness LED lamp.
Technical background
Street lamp in the market, ligthing paraphernalias such as flood light all adopt a point-source of light to add upper reflector, utilize reflector to reach the effect of luminous intensity distribution, because the principle of luminosity of high pressure sodium lamp, can not step-down use, reducing brightness for hope from the peak period, necessary with two bulbs or two-part ballast, can influence the uniformity of luminous intensity distribution like this, development along with the LED green light source, it is the ligthing paraphernalia of illuminating source that each manufacturer all releases with LED, comprise the LED street lamp, LED flood lights etc. for satisfied requirement from peak period minimizing brightness, just need a kind of circuit of controlling led light source equally.
The utility model content
At the problem of above-mentioned appearance, the utility model proposes a kind of control circuit of high-brightness LED lamp, controlled the brightness of high-brightness LED lamp easily.
The utility model is achieved by the following technical solution:
A kind of control circuit of high-brightness LED lamp comprises by high-brightness LED optics module, organizes the high-brightness LED lamp that high-brightness LED drive circuit, Switching Power Supply connect to form successively more, and described high-brightness LED lamp is provided with the high-brightness LED Drive and Control Circuit.
The described LED Drive and Control Circuit that is connected with the high-brightness LED drive circuit is exported driving switch control signal and drive current control signal respectively, trigger the high-brightness LED drive circuit behind the driving switch control signal input high-brightness LED drive circuit of output and open and turn-off, trigger the increase and the minimizing of the drive current of high-brightness LED drive circuit behind the output driving current control signal input high-brightness LED drive circuit.
The drive signal of described high-brightness LED drive circuit drives each high-brightness LED module of high-brightness LED optics module respectively.
The driving switch control signal of described high-brightness LED Drive and Control Circuit output, trigger the opening and turn-offing of high-brightness LED drive circuit of half, the forward drive current control signal of described high-brightness LED Drive and Control Circuit output triggers the increase of the drive current of high-brightness LED drive circuit.
Each high-brightness LED in each high-brightness LED module of described high-brightness LED optics module is spaced respectively, and the high-brightness LED that is in the disparate modules is set around each high-brightness LED.
Effect of the present utility model is:
The control circuit of a kind of high-brightness LED lamp described in the utility model, controlled the brightness of LED ligthing paraphernalia easily, satisfied from the peak period brightness energy-conservation requirement that reduces by half, also can not influence the uniformity of luminous intensity distribution, can extensive use in LED ligthing paraphernalias such as high-brightness LED street lamp, high light LED projector.
Description of drawings
Fig. 1 theory structure schematic diagram of the present utility model.
Fig. 2 the utility model high-brightness LED optics module structural representation.
Fig. 3 the utility model high-brightness LED optical module structural representation.
Fig. 4 the utility model lumen fraction VS current diagram.
Fig. 5 the utility model control multipath LED drive circuit Enable Pin (chip has band Enable/Disable function) circuit principle structure schematic diagram.
Fig. 6 the utility model control multipath LED drive circuit Enable Pin (chip does not have band Enable/Disable function) circuit principle structure schematic diagram.
Fig. 7 the utility model control multipath LED drive circuit Enable Pin (chip has band Enable/Disable function) electrical block diagram.
Fig. 8 the utility model control multipath LED drive circuit Enable Pin (chip does not have band Enable/Disable function) electrical block diagram.
Among the figure: 1, high-brightness LED optics module, 2, the high-brightness LED Drive and Control Circuit, 3, Switching Power Supply, 4, the high-brightness LED drive circuit, 5,6,7,8,9, high-brightness LED.
Embodiment
Referring to Fig. 1～8.A kind of control circuit of high-brightness LED lamp comprises the high-brightness LED lamp that is connected to form successively by high-brightness LED optics module 1, high-brightness LED drive circuit 4, Switching Power Supply 3, and described high-brightness LED lamp is provided with high-brightness LED Drive and Control Circuit 2.The described LED Drive and Control Circuit 2 that is connected with high-brightness LED drive circuit 4 is exported driving switch control signal and drive current control signal respectively, driving switch control signal input high-brightness LED drive circuit 4 backs of output are triggered the high-brightness LED drive circuit and are opened and turn-off, and output driving current control signal input high-brightness LED drive circuit 4 backs are triggered the high-brightness LED drive circuit to increase and reduce.The drive signal of described high-brightness LED drive circuit 4 drives each high-brightness LED module of high-brightness LED optics module 1 respectively.Each high-brightness LED 5, high-brightness LED 6, high-brightness LED 7, high-brightness LED 8, high-brightness LED 9 in each high-brightness LED module of described high-brightness LED optics module 1 are spaced respectively, and high-brightness LED 6, high-brightness LED 7, high-brightness LED 8, the high-brightness LED 9 that is in the disparate modules is set around the high-brightness LED 5.
The optical module of LED ligthing paraphernalia is made up of a few row LED by the different opticators that rearranges a plurality of point-source of lights (LED), and certain angle is arranged between row and row, and every row LED is at same straight line, and the granule number difference.Regulate the illuminance that shines ground by angle and granule number, make it to reach the light effect of uniform.Under the situation that does not change angle, each row reduces the LED of similar number, and then its optical uniformity can not change.In order to reach the effect that reduces by half, we can turn off every half of arranging LED: optimal scheme is to turn off one every a LEDs.The drive circuit of LED ligthing paraphernalia is a constant-current drive circuit.LED is because manufacturer's difference, and its performance is different, and " lumen fraction VS electric current " difference especially can reach brightness and reduces by half by the flow through electric current of LED of reduction.When electric current was 350mA, its lumen fraction was 1; If brightness reduces by half, promptly lumen fraction is 0.5, and this moment, corresponding electric current was 110mA, that is to say to reach the effect that brightness reduces by half, and needs electric current is dropped to 110mA from 350mA.
Concrete enforcement in high-brightness LED street lamp:
Embodiment 1:
Reduce the particle of lighting, control multipath LED drive circuit Enable Pin (chip has band Enable/Disable function).By the Enable/Disable function of chip, can directly control each road output circuit is ON, or OFF; Come setting-up time by the time timing control circuit.Setting certain time period is " contract fully " state, sets each road output circuit by chip and is " OFF ", and then street lamp does not work; Setting certain time period is " bright " state, sets each road output circuit by chip and is " ON ", and then street lamp is lighted; Set certain time period for " part is closed " state, set a few roads output circuit by chip and be " OFF ", then street lamp has partial L ED to cut out, and partly lights.
Embodiment 2:
Reduce the particle of lighting, control led drive circuit Enable Pin (chip does not have band Enable/Disable function).Each road drive circuit links to each other with one road Relay, controls led drive circuit by Relay; Come setting-up time by the time timing control circuit.Setting certain time period is " contract fully " state, and each road Relay is set as " OFF ", and each paths of LEDs drive circuit cuts out, and then street lamp does not work; Setting certain time period is " bright " state, and each road Relay is set as " ON ", and each paths of LEDs drive circuit is open-minded, and then street lamp is lighted; Setting certain time period is " part is closed " state, and a few road Relay are set as " OFF ", and a few paths of LEDs drive circuits that are attached thereto are closed, and then street lamp has partial L ED to cut out, and part is lighted.
Embodiment 3:
Reduce drive current, the resistance value of control led drive circuit changes its drive current.Each road drive circuit has two groups of different resistance, comes control flows through the LED electric current by the convert resistance value; The time timing control circuit of mistake comes setting-up time and control to select the electricity group.Setting certain time period is " bright fully " state, and the time timing control circuit will be controlled the resistance that each road drive circuit selects to make the LED operate as normal, LED operate as normal; Setting certain time period is " half bright " state, and the time timing control circuit will control each road drive circuit and select another to organize resistance, and the electric current of the LED that then flows through is lower than the electric current of operate as normal (this electric current will according to corresponding with the luminous flux of needs).
Claims (5)
1, a kind of control circuit of high-brightness LED lamp, comprise by high-brightness LED optics module (1), organize the high-brightness LED lamp that high-brightness LED drive circuit (4), Switching Power Supply (3) connect to form successively more, it is characterized in that: described high-brightness LED lamp is provided with high-brightness LED Drive and Control Circuit (2).
2, the control circuit of high-brightness LED lamp according to claim 1, it is characterized in that: the described LED Drive and Control Circuit (2) that is connected with high-brightness LED drive circuit (4) is exported driving switch control signal and drive current control signal respectively, driving switch control signal input high-brightness LED drive circuit (4) back of output is triggered high-brightness LED drive circuit (4) and is opened and turn-off, and the increase and the minimizing of the drive current of high-brightness LED drive circuit (4) triggered in output driving current control signal input high-brightness LED drive circuit (4) back.
3, the control circuit of high-brightness LED lamp according to claim 1 and 2 is characterized in that: the drive signal of described high-brightness LED drive circuit (4) drives each high-brightness LED module of high-brightness LED optics module (1) respectively.
4, the control circuit of high-brightness LED lamp according to claim 3, it is characterized in that: the driving switch control signal of described high-brightness LED Drive and Control Circuit (2) output, trigger the opening and turn-offing of high-brightness LED drive circuit (4) of half, the forward drive current control signal of described high-brightness LED Drive and Control Circuit (2) output triggers the increase of the drive current of high-brightness LED drive circuit (4).
5, the control circuit of high-brightness LED lamp according to claim 4, it is characterized in that: each high-brightness LED in each high-brightness LED module of described high-brightness LED optics module (1) is spaced respectively, and the high-brightness LED that is in the disparate modules is set around each high-brightness LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200464025U CN201204724Y (en) | 2008-04-15 | 2008-04-15 | Control circuit for high brightness LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200464025U CN201204724Y (en) | 2008-04-15 | 2008-04-15 | Control circuit for high brightness LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201204724Y true CN201204724Y (en) | 2009-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200464025U Expired - Fee Related CN201204724Y (en) | 2008-04-15 | 2008-04-15 | Control circuit for high brightness LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201204724Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102762012A (en) * | 2011-04-27 | 2012-10-31 | 夏普株式会社 | Led drive circuit and led illumination light |
| CN103687212A (en) * | 2013-11-29 | 2014-03-26 | 青岛威力电子科技有限公司 | High-brightness LED lamp and control circuit |
-
2008
- 2008-04-15 CN CNU2008200464025U patent/CN201204724Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102762012A (en) * | 2011-04-27 | 2012-10-31 | 夏普株式会社 | Led drive circuit and led illumination light |
| CN102762012B (en) * | 2011-04-27 | 2014-12-10 | 夏普株式会社 | LED drive circuit and LED illumination light |
| CN103687212A (en) * | 2013-11-29 | 2014-03-26 | 青岛威力电子科技有限公司 | High-brightness LED lamp and control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20150415 |
|
| EXPY | Termination of patent right or utility model |