CN202514106U - LED control panel and LED lamp - Google Patents
LED control panel and LED lamp Download PDFInfo
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- CN202514106U CN202514106U CN2012200126379U CN201220012637U CN202514106U CN 202514106 U CN202514106 U CN 202514106U CN 2012200126379 U CN2012200126379 U CN 2012200126379U CN 201220012637 U CN201220012637 U CN 201220012637U CN 202514106 U CN202514106 U CN 202514106U
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Abstract
The utility model discloses an LED control panel and an LED lamp. When the LED control panel is used, a power supply circuit respectively supplies working voltages for a single chip microcomputer control circuit and a temperature detection circuit; and after LED drive circuits drive loads, the temperature detection circuit detects the current temperature of the LED control panel in real time; and the single chip microcomputer control circuit determines whether an input temperature value exceeds a preset value or not; when the temperature exceeds the preset value, the intensity of dimming signals outputted to the LED drive circuits is reduced and the temperature of the load is also lowered, so that the temperature of the LED control panel is further reduced and the service life as well as the dimming efficiency of the LED control panel are improved.
Description
Technical field
The utility model relates to the led technology field, especially relates to a kind of LED control board and LED lamp.
Background technology
As everyone knows, along with the development people of society also improve constantly the requirement of quality of life, wherein green health and energy-conserving and environment-protective are rooted in the hearts of the people, a kind of just environmental protection light source of light-emitting diode (LED), and the LED light fixture is innumerable on the market.
In existing LED light fixture, generally include LED control board and LED, the LED control board carries out brightness adjustment control to LED.
In existing LED light fixture; Mainly there is following problem: because the heating when working of LED control board is high, useful life is short; And the work duration of LED can reach about 50000 hours in theory; The life-span of LED control board but is far smaller than led light source, has so just directly reduced the whole service life of LED light fixture, and the LED control board in the existing LED light fixture all can not be given full play to the luminous advantage of LED.
The utility model content
The utility model provides a kind of LED control board and LED lamp, and this LED control board has higher light modulation efficient, and then has prolonged the useful life of LED lamp.
The LED control board that the utility model provides comprises: power circuit,
Single chip machine controlling circuit, temperature sensing circuit and led drive circuit;
Said power circuit is connected with said single chip machine controlling circuit and temperature sensing circuit respectively, to said single chip machine controlling circuit and temperature sensing circuit operating voltage is provided;
Said led drive circuit is connected with said single chip machine controlling circuit, is used to receive the dim signal of said single chip machine controlling circuit output, drives the load that is connected with said led drive circuit according to this dim signal;
Said temperature sensing circuit is connected with said single chip machine controlling circuit; Be used to detect the temperature of LED control board; And detected temperature value imported said single chip machine controlling circuit; Said single chip machine controlling circuit reduces the intensity to the dim signal of said led drive circuit output when judging that said temperature value surpasses preset value.
Present embodiment also provides a kind of LED lamp, comprises LED, and aforesaid LED control board, and said LED is electrically connected with said LED control board.
The LED control board that present embodiment provides in use; Power circuit provides operating voltage to single chip machine controlling circuit and temperature sensing circuit respectively; After led drive circuit drove load (LED), temperature sensing circuit detected the current temperature of LED control board in real time, and whether single chip machine controlling circuit surpasses preset value at the temperature value of judging input;, temperature reduces intensity when surpassing to the dim signal of led drive circuit output; Reduce the temperature of load, and then reduced the temperature of LED control board, improved the life-span and the light modulation efficient of LED control board.
Description of drawings
Fig. 1 is the structural representation of the LED control board that provides of the utility model.
Fig. 2 is the circuit theory diagrams of the LED control board that provides of the utility model.
The realization of the utility model purpose, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Referring to Fig. 1, Fig. 1 is the structural representation of the LED control board that provides of the utility model.
As shown in Figure 1, the LED control board that the utility model provides comprises: power circuit 10, single chip machine controlling circuit 20, led drive circuit 30 and temperature sensing circuit 40.
Wherein, power circuit 10 is connected with said single chip machine controlling circuit 20 and temperature sensing circuit 40 respectively, to said single chip machine controlling circuit 20 and temperature sensing circuit 40 operating voltage is provided;
Said led drive circuit 30 is connected with said single chip machine controlling circuit 20, is used to receive the dim signal of said single chip machine controlling circuit 20 outputs, drives the load that is connected with led drive circuit 30 according to this dim signal; Wherein, load can be LED.
In the present embodiment; Temperature sensing circuit 40 is connected with said single chip machine controlling circuit 20; Be used to detect the temperature of LED control board; And detected temperature value imported said single chip machine controlling circuit 20, said single chip machine controlling circuit 20 reduces the intensity to the dim signal of said led drive circuit 30 outputs when judging that said temperature value surpasses preset value.
The LED control board that present embodiment provides in use; Power circuit 10 provides operating voltage to single chip machine controlling circuit 20 and temperature sensing circuit 40 respectively; After led drive circuit 30 drove load (LED), temperature sensing circuit 40 detected the current temperature of LED control board in real time, and whether single chip machine controlling circuit 20 surpasses preset value at the temperature value of judging input;, temperature reduces intensity when surpassing to the dim signal of led drive circuit 30 outputs; Reduce the temperature of load, and then reduced the temperature of LED control board, improved the life-span and the light modulation efficient of LED control board.
Further, in the LED control board that present embodiment provides, led drive circuit 30 comprises three groups, is respectively ruddiness drive circuit 31, green glow drive circuit 32, blu-ray drives circuit 33.Ruddiness drive circuit 31, green glow drive circuit 32, blu-ray drives circuit 33 are connected with three outputs of said single chip machine controlling circuit 20 respectively, and said three outputs are exported the pulse-modulated signal and the corresponding pulse-modulated signal of blue light of the corresponding pulse-modulated signal of ruddiness, green glow correspondence respectively.Corresponding, temperature sensing circuit comprises three groups, is respectively applied for the temperature that detects ruddiness drive circuit 31, green glow drive circuit 32, blu-ray drives circuit 33, and detected temperature value is input in the single chip machine controlling circuit 20.In the present embodiment, single chip machine controlling circuit 20 can be realized seamless full-color RGB toning through the ratio of adjustment red-green-blue through the corresponding control of pulse modulation (PWM) signal RGB (RGB) three primary colors.
In the LED control board that present embodiment provides; Also comprise infrared receiving circuit 50, infrared receiving circuit 50 is connected with said single chip machine controlling circuit 20, is used to receive the infrared signal that remote controller sends; And the infrared signal that receives decoded; Decoded result is imported said single chip machine controlling circuit 50, and the user can control the LED control board through remote controller, and then regulates the luminous of LED light fixture.
Referring to Fig. 2, Fig. 2 is the schematic diagram of the circuit of the LED control board that provides of present embodiment.Need to prove that Fig. 2 has only provided a kind of possible circuit theory diagrams, those of ordinary skills can obtain other circuit theory diagrams according to the circuit theory diagrams among Fig. 1.
As shown in the figure, Fig. 2 only shows single chip machine controlling circuit, temperature sensing circuit, led drive circuit and infrared receiving circuit, has omitted power circuit.Wherein, single chip machine controlling circuit comprises single-chip microcomputer and peripheral circuit (for example crystal oscillating circuit etc.), and the model of single-chip microcomputer is XC866.
In the present embodiment, the ruddiness drive circuit comprises resistance R 23 and LED chip for driving BCR321.Wherein first pin of LED chip for driving BCR321 is connected with the pulse-modulated signal output (PWM_R) of said single-chip microcomputer; After joining, second pin, the 3rd pin and the 5th pin be connected with load; The 6th pin is through said resistance R 23 ground connection, the 4th pin ground connection.
The green glow drive circuit comprises resistance R 24 and LED chip for driving BCR321.Wherein first pin of LED chip for driving BCR321 is connected with the pulse-modulated signal output (PWM_G) of said single-chip microcomputer; After joining, second pin, the 3rd pin and the 5th pin be connected with load; The 6th pin is through said resistance R 24 ground connection, the 4th pin ground connection.
The blu-ray drives circuit comprises resistance R 25 and LED chip for driving BCR321.Wherein first pin of LED chip for driving BCR321 is connected with the pulse-modulated signal output (PWM_B) of said single-chip microcomputer; After joining, second pin, the 3rd pin and the 5th pin be connected with load; The 6th pin is through said resistance R 25 ground connection, the 4th pin ground connection.
In the present embodiment; Temperature sensing circuit in the LED control board comprises three the tunnel, and first via temperature sensing circuit comprises resistance R 28, thermistor RT2 and capacitor C 24; Resistance R 28 1 ends are connected with the AD sample port (R_ADJ) of single-chip microcomputer, and the other end is connected with thermistor RT2.Wherein, first via temperature sensing circuit is arranged near the ruddiness drive circuit, is used to detect the temperature of ruddiness drive circuit and imports single-chip microcomputer.
The second road temperature sensing circuit comprises resistance R 29, thermistor RT3 and capacitor C 25, and resistance R 29 1 ends are connected with the AD sample port (G_ADJ) of single-chip microcomputer, and the other end is connected with thermistor RT3.Wherein, the second road temperature sensing circuit is arranged near the green glow drive circuit, is used to detect the temperature of green glow drive circuit and imports single-chip microcomputer.
The Third Road temperature sensing circuit comprises resistance R 30, thermistor RT4 and capacitor C 26, and resistance R 30 1 ends are connected with the AD sample port (B_ADJ) of single-chip microcomputer, and the other end is connected with thermistor RT4.Wherein, the Third Road temperature and resistance is arranged near the blu-ray drives circuit, is used to detect the temperature of blu-ray drives circuit and imports single-chip microcomputer.
As shown in the figure, the model of infrared remote receiver is 0038B, and it receives the infrared signal of remote controller transmission and decodes, and decoded result is input in the single-chip microcomputer.
In the LED control board that present embodiment provides; Adopt power circuit to provide constant voltage source to supply power respectively to LED load and single-chip microcomputer; Control section is exported three road pwm signals through the I/O mouth of single-chip microcomputer, controls the light modulation toning of R, G, B three paths of LEDs lamps through modulation duty cycle.Above-mentioned LED control board can also comprise the infrared control system that is received by infrared remote control control and infrared receiving terminal.
Present embodiment also provides a kind of LED lamp at last, and this LED lamp comprises aforesaid LED control board and LED, and LED is electrically connected with said LED control board.
The LED lamp that present embodiment provides in use; Give the power circuit power supply of LED control board through civil power AC220V power supply; Power circuit output 36V, 5V direct current are given the power supply of LED load and single-chip microcomputer respectively, and the user sends signal through IR remote controller, and is received by infrared receiving terminal; The I/O mouth P3.1 of single-chip microcomputer, P3.3, P3.5 port are exported pwm control signals green, red, blue three primary colors respectively, and the duty ratio that the user regulates pwm signal through IR remote controller realizes the light modulation toning.
In addition; Single chip machine controlling circuit can also comprise RS485 interface circuit (figure does not show) in the present embodiment, and then realizes long-distance transmissions control through RS485, and the stable transfer distance can reach more than 1000 meters; Guarantee the real-time and the correctness of a plurality of light fixture communications, realize Synchronization Control; Owing to increased temperature sensing circuit on the LED control board; Through temperature sensing circuit monitoring LED lamp temperatures; When lamp temperatures was too high, temperature sensing circuit can be given single-chip microcomputer by transmission signals, thereby the duty ratio of control output pwm control signal reduces; The brightness of lamp is reduced, reach the function of intelligent protection LED light fixture; At last, present embodiment can also be encoded to LED through code switch, thereby realizes the asynchronous control to each LED, for example adopts 3 toggle switchs can realize the asynchronous control of 8 light fixtures at most, is suitable for general home decoration illumination.
Should be understood that; More than be merely the preferred embodiment of the utility model; Can not therefore limit the claim of the utility model; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done, or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (7)
1. a LED control board comprises power circuit, it is characterized in that, also comprises:
Single chip machine controlling circuit, temperature sensing circuit and led drive circuit;
Said power circuit is connected with said single chip machine controlling circuit and temperature sensing circuit respectively, to said single chip machine controlling circuit and temperature sensing circuit operating voltage is provided;
Said led drive circuit is connected with said single chip machine controlling circuit, is used to receive the dim signal of said single chip machine controlling circuit output, drives the load that is connected with said led drive circuit according to this dim signal;
Said temperature sensing circuit is connected with said single chip machine controlling circuit; Be used to detect the temperature of LED control board; And detected temperature value imported said single chip machine controlling circuit; Said single chip machine controlling circuit reduces the intensity to the dim signal of said led drive circuit output when judging that said temperature value surpasses preset value.
2. LED control board as claimed in claim 1 is characterized in that, said led drive circuit comprises three groups, is connected with three outputs of said single chip machine controlling circuit respectively;
Said three outputs are exported the pulse-modulated signal and the corresponding pulse-modulated signal of blue light of the corresponding pulse-modulated signal of ruddiness, green glow correspondence respectively;
Said temperature sensing circuit comprises three groups.
3. LED control board as claimed in claim 2 is characterized in that,
Said single chip machine controlling circuit comprises single-chip microcomputer, and said temperature sensing circuit is connected with the AD sample port of said single-chip microcomputer.
4. LED control board as claimed in claim 3 is characterized in that, also comprises:
Infrared receiving circuit, said infrared receiving circuit is connected with said single chip machine controlling circuit, is used to receive the infrared signal that remote controller sends, and the infrared signal that receives is decoded, and decoded result is imported said single chip machine controlling circuit.
5. LED control board as claimed in claim 4 is characterized in that, said load is LED, and the model of said single-chip microcomputer is XC866, and said infrared receiving circuit is located in the infrared remote receiver, and the model of infrared remote receiver is 0038B.
6. according to claim 1 or claim 2 LED control board; It is characterized in that said led drive circuit comprises: LED chip for driving and resistance, the model of said LED chip for driving are BCR321; First pin of said LED chip for driving is connected with said single chip machine controlling circuit; Be connected with load after second pin, the 3rd pin and the 5th pin join, the 6th pin is through said grounding through resistance, the 4th pin ground connection.
7. a LED lamp comprises LED, it is characterized in that, also comprises:
Like each described LED control board of claim 1-6, said LED is electrically connected with said LED control board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200126379U CN202514106U (en) | 2012-01-12 | 2012-01-12 | LED control panel and LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200126379U CN202514106U (en) | 2012-01-12 | 2012-01-12 | LED control panel and LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202514106U true CN202514106U (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200126379U Expired - Fee Related CN202514106U (en) | 2012-01-12 | 2012-01-12 | LED control panel and LED lamp |
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| CN (1) | CN202514106U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728531A (en) * | 2013-12-25 | 2014-04-16 | 苏州欢颜电气有限公司 | Testing device for LED system control board |
-
2012
- 2012-01-12 CN CN2012200126379U patent/CN202514106U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728531A (en) * | 2013-12-25 | 2014-04-16 | 苏州欢颜电气有限公司 | Testing device for LED system control board |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN LINGYAO DONGFANG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHOU HANYU Effective date: 20140123 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Hanyu Inventor after: Tian Guangliang Inventor after: Fu Xin Inventor after: Yin Jin Inventor before: Zhou Hanyu Inventor before: Xu Donggui Inventor before: Dai Biwu Inventor before: Jiang Zhitao |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHOU HANYU XU DONGGUI DAI BIWU JIANG ZHITAO TO: ZHOU HANYU TIAN GUANGLIANG FU XIN YIN 201020640130.9;2014.02.26;CHANGE IN THE NAME OR ADDRESS OF THE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140123 Address after: The central Shenzhen city of Guangdong Province, 518000 Keyuan Road, Nanshan District science and Technology Park No. 15 Kexing Science Park Building 4 unit A No. 1205 unit Patentee after: Shenzhen leading East Technology Co., Ltd. Address before: 518000 Guangdong province Shenzhen city Longhua District Cameron Road seven commercial plaza 706 Patentee before: Zhou Hanyu |
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| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN TOPEAST TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN LINGYAO DONGFANG TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: The central Shenzhen city of Guangdong Province, 518000 Keyuan Road, Nanshan District science and Technology Park No. 15 Kexing Science Park Building 4 unit A No. 1205 unit Patentee after: SHENZHEN TOPEAST TECHNOLOGY CO., LTD. Address before: The central Shenzhen city of Guangdong Province, 518000 Keyuan Road, Nanshan District science and Technology Park No. 15 Kexing Science Park Building 4 unit A No. 1205 unit Patentee before: Shenzhen leading East Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20190112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |