CN202068629U - Light emitting diode control device for prolonging lifetime and saving energy - Google Patents
Light emitting diode control device for prolonging lifetime and saving energy Download PDFInfo
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- CN202068629U CN202068629U CN2011201764118U CN201120176411U CN202068629U CN 202068629 U CN202068629 U CN 202068629U CN 2011201764118 U CN2011201764118 U CN 2011201764118U CN 201120176411 U CN201120176411 U CN 201120176411U CN 202068629 U CN202068629 U CN 202068629U
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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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Abstract
The utility model relates to a light emitting diode control device for prolonging lifetime and saving energy. The control device includes a plurality of voltage feedback control circuits, a light string module and a master monitoring module. The voltage feedback control circuits output different constant voltages. The light string module includes a light string unit and a plurality of constant current circuits. The light string unit is connected to an output terminal of each voltage feedback control circuit. Each constant current circuit connects with the light string unit. The constant current circuits are corresponding to the voltage feedback control circuits one to one, so as to make the constant current circuit and the voltage feedback control circuit in each pair output different power to the light string unit. The master monitoring module controls a pair of the constant current circuit and the voltage feedback control circuit selectively and outputs a predetermined constant voltage and a constant current to the light string unit.
Description
Technical field
The utility model relates to a kind of control device of light emitting diode matrix, particularly a kind of control device that prolongs light emitting diode matrix useful life and saving power consumption.
Background technology
The principle of luminosity of light-emitting diode (LED), be by electronics and electric hole compound after, produce light with illuminating effect.The advantage of light-emitting diode is known already, and must become the rising star of illuminations.Yet light-emitting diode is used in the illumination of marching toward, and being still a lot of obstructions and technical problem need overcome, for example the problem of useful life and heat radiation.
In order to improve the brightness of light-emitting diode, often obtain higher output brightness at light-emitting diode to promote diode power with higher electro-optical efficiency.Yet, even this makes light-emitting diode itself use modes such as fin, still can't solve effectively because heat radiation is too late, cause the heat that is cumulative too high and the problem that allows useful life and shorten.
In addition, aforesaid problem has limited the application of light-emitting diode, and for example present light-emitting diode also should not be applied to street lamp.Because as the light source of street lamp application, must be that high brightness and use for a long time can be provided, and the light-emitting diode of present stage be to obtain high brightness, high stability, on high useful life, often can't obtain suitable balance.
The utility model content
In order to solve aforesaid light-emitting diode Chang Yinwei in order to obtain the light output of high brightness, cause the needs too high power of input and produce heat dissipation problem, and then the problem that causes the shortening in useful life and use category to limit, the utility model is the output brightness that utilizes many LED light strings to rotate alternately and have a rest and regulate light-emitting diode automatically, improving light-emitting diode can't be applicable to as in the long-time application of throwing light on of needs such as street lamp, solve poor heat radiation and useful life too short problem, reach energy-conservation, save cost and prolong the light-emitting diode purpose in useful life.
Cooperate aforesaid technical problem and goal of the invention, the utility model provides a kind of life-span of light-emitting diode to prolong and energy-saving control device, and it comprises:
A plurality of Voltage Feedback control circuits, it exports the different voltage of deciding respectively;
One string light module, this string light module comprises: a lamp string location and a plurality of constant-current circuit, this lamp string location is connected in the output of each Voltage Feedback control circuit; Each constant-current circuit is connected in this lamp string location, and each constant-current circuit connects the Voltage Feedback control circuit of a correspondence respectively;
One total monitoring module, it connects each Voltage Feedback control circuit and each constant-current circuit.
The life-span of above-mentioned light-emitting diode prolongs and energy-saving control device, wherein, comprises a plurality of string light modules, and each string light module is connected with each Voltage Feedback control circuit and total monitoring module respectively.
The life-span of above-mentioned light-emitting diode prolongs and energy-saving control device, and wherein, this is always monitored module and further connects induction light brightness or sense temperature module.
The life-span of above-mentioned light-emitting diode prolongs and energy-saving control device, and wherein, this lamp string location comprises the light-emitting diode of a plurality of serial connections, each light-emitting diode bypass circuit in parallel, and the monitoring module electrically connects each bypass circuit with always being somebody's turn to do.
The life-span of above-mentioned light-emitting diode prolongs and energy-saving control device, and wherein, this string light module comprises a lamp string control chip, and it is connected between this total monitoring module and each constant-current circuit.
The life-span of above-mentioned light-emitting diode prolongs and energy-saving control device, and wherein, each string light module comprises a lamp string control chip, and it is connected between this total monitoring module and each constant-current circuit;
This bypass circuit comprises a thyristor and a pulse transformer that is parallel to this light-emitting diode, and this pulse transformer is electrically connected with this lamp string control chip;
Each string light module comprises a comparison circuit, and this comparison circuit is to be connected between this lamp string control chip and constant-current circuit.
The life-span of above-mentioned light-emitting diode prolongs and energy-saving control device, and wherein, this is always monitored module and connects a pulse width modulation control circuit, and this pulse width modulation control circuit connects an AC/DC modular converter.
The output brightness that the utility model utilizes many LED light strings to rotate alternately and have a rest and regulate light-emitting diode automatically, improving light-emitting diode can't be applicable to as in the long-time application of throwing light on of needs such as street lamp, solve poor heat radiation and useful life too short problem, reach energy-conservation, save cost and prolong the light-emitting diode purpose in useful life.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model one preferred embodiment;
Fig. 2 is the detailed circuit diagram of the utility model one preferred embodiment;
Fig. 3 is that the light-emitting diode of the utility model one preferred embodiment is damaged the decision circuitry line map.
Embodiment
Following conjunction with figs. and preferred embodiment of the present utility model, further setting forth the utility model is the technological means of being taked that reaches predetermined.
Please refer to Fig. 1, be the life-span prolongation of the utility model light-emitting diode and the preferred embodiment of energy-saving control device, it comprises: a total monitoring module 10, an input voltage control module 20, an AC/DC modular converter 30, more than one string light module 40 and a photoinduction module 50.
Please refer to Fig. 2, this is always monitored module 10 and can be a microprocessor or a program-controlled chip (as PLD, CPLD, FPGA... etc.), and it can cooperate peripheral circuit, and the life-span of carrying out a light-emitting diode prolongs and energy-saving control method, as shown in Figure 3.This preferred embodiment should total monitoring module 10 can be as institute's sign among Fig. 2, employing is numbered the control chip of PIC16F716.
This input voltage control module 20 comprises a plurality of Voltage Feedback control circuits 22 and a pulse width modulation control circuit 24, each Voltage Feedback control circuit 22 connects the output of this total monitoring module 10 respectively, and the control command of accepting this total monitoring module 10 is exported to any string light module 40 with the output certain voltage, and each Voltage Feedback control circuit 22 can be exported the different voltage of deciding respectively, and this preferred embodiment comprises the Voltage Feedback control circuit 22 that three exportable three kinds of differences are decided voltage output.
This Voltage Feedback control circuit 22 can be the fixed voltage circuit of various kenels, as shown in Figure 2, each Voltage Feedback control circuit 22 of this preferred embodiment is the fixed voltage circuit that utilizes a pressurizer in parallel (code T L431), a transistor and a plurality of resistance to form; With the Voltage Feedback control circuit 22 that comprises transistor Q4 among Fig. 2 is example, the base stage (base) of this transistor Q4 connects an output of this total monitoring module 10, the collector electrode (collector) of this transistor Q4 then connects and comprises a pressurizer (TL431 in parallel, programmable shunt regulator) and three resistance R 15, R16, the fixed voltage circuit of R17.When this transistor Q4 is subjected to always to monitor the control of module 10 and after opening, 22 output of the Voltage Feedback control circuit specific voltage that comprises this transistor Q4 gives each string light module 40.
This pulse width modulation control circuit 24 is directly or indirectly to be connected in this always to monitor 30 of module 10 and this AC/DC modular converters, it is accepted the control of this total monitoring module 10 and cooperates AC/DC modular converter 30 to convert the AC power of an outside to a direct current voltage, and this direct voltage provides and gives each Voltage Feedback control circuit 22 and each string light module 40; The so-called connection indirectly is meant that this pulse width modulation control circuit 24 can and should total monitoring module 10 electrically connect by each Voltage Feedback control circuit 22.
Each string light module 40 comprises a lamp string location 44 of a fixed current controling circuit 42 and this fixed current controling circuit 42 of serial connection; This fixed current controling circuit 42 comprises a lamp string control chip 422 and a plurality of constant-current circuit 424 that is connected to the output of this lamp string control chip 422.This preferred embodiment comprises three constant-current circuits 424, with one of them constant-current circuit 424 is the example explanation, each constant-current circuit 424 comprises two transistor Q9, Q10 and two resistance R 23, Re3, each constant-current circuit 424 exportable certain electric current, each constant-current circuit 424 and a Voltage Feedback control circuit 22 are exported, and to decide voltage corresponding, provide same group of lamp string location 44 specific voltage and electric current, be subjected to the control of this total monitoring module 10 when this lamp string control chip 422, select one of them constant-current circuit 424 and change when exporting the electric current of this lamp string location 44 to, this Voltage Feedback control circuit 22 also changes output voltage with it, the electric current and voltage that outputs to this lamp string location 44 can be mated, can not cause other part in the energy loss circuit because pressure drop and electric current do not match, cause energy waste and shorten problem such as circuit useful life.
This lamp string location 44 comprises the LED of a plurality of series connection, an each light-emitting diode thyristor SCR in parallel and a pulse transformer (Pulse Transformer), the bypass path of this light-emitting diode of then conduct correspondence of this thyristor SCR and this pulse transformer.For example, LED 1, thyristor SCR1 and pulse transformer T1 parallel connection, when this LED 1 is damaged, this pulse transformer T1 accepts the control of this lamp string control chip 422, and touch this thyristor of conducting SCR1 to produce bypass, make electric current this thyristor SCR1 that flows through.Therefore, even arbitrary light-emitting diode damage of series connection mutually in this lamp string location 44 still can allow this lamp string location 44 of whole string continue operate as normal by producing bypass with this thyristor and this pulse transformer.Wherein, this lamp string control chip 422 is judged the mode whether LED in this lamp string location 44 damages, can utilize and judge whether conducting or have pressure drop of each constant-current circuit 424, for example continue to use aforesaid example and cooperation with reference to figure 3, can be at the resistance R e1～Re3 and the transistor Q6 of each constant-current circuit 424, Q8, the node location of Q10 base stage, after connecting a comparison circuit 428, be connected to corresponding lamp string control chip 422 again, when lamp string location 44 one of them light-emitting diode fault, this lamp string control chip 422 can (can utilize the circuit that contains comparator by the comparative result of this comparison circuit 428, the pressure drop of comparison of aforementioned resistance R e1～Re3 and the voltage relationship of ground connection) judge in this lamp string location 44 fault is arranged and can't allow resistance R e1 or Re2 or Re3 have normal pressure drop, at this moment, 422 of this lamp string control chips make thyristor SCR conducting in parallel by driving pairing this pulse transformer of each light-emitting diode one by one, as the thyristor SCR of institute's conducting when being in parallel with the light-emitting diode of damaging, corresponding resistance R e1 or Re2 or Re3 then have pressure drop, 428 so corresponding of comparison circuits can produce different output, make this corresponding lamp string control chip 422 be judged the light-emitting diode of damage, and this thyristor SCR of the light-emitting diode parallel connection of lasting conducting damage, so, the lamp string location 44 that can allow part damage light-emitting diode works on, and reaches the technique effect that avoids waste.
This photoinduction module 50 connects the input of this total monitoring module 10, it can be and comprises a photo resistance or an optical coupling element (Photo Couple), to respond to outside surround lighting, and will respond to the result and be sent to this total monitoring module 10, always monitoring module 10 must be according to the induction result of this photoinduction module 50 to make this, the suitable power that adjusts the output to this string light module 40.For example, when this is always monitored module 10 and can uprise in the brightness of this photoinduction module 50 induction external ambient light, reduce the power that exports this string light module 40 to, make this string light module 40 regulate light output automatically, reach effect of saving energy.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (9)
1. the life-span of a light-emitting diode prolongs and energy-saving control device, it is characterized in that, comprises:
A plurality of Voltage Feedback control circuits, it exports the different voltage of deciding respectively;
One string light module, this string light module comprises: a lamp string location and a plurality of constant-current circuit, this lamp string location is connected in the output of each Voltage Feedback control circuit; Each constant-current circuit is connected in this lamp string location, and each constant-current circuit connects the Voltage Feedback control circuit of a correspondence respectively;
One total monitoring module, it connects each Voltage Feedback control circuit and each constant-current circuit.
2. the life-span according to the described light-emitting diode of claim 1 prolongs and energy-saving control device, it is characterized in that, comprises a plurality of string light modules, and each string light module is connected with each Voltage Feedback control circuit and total monitoring module respectively.
3. the life-span according to the described light-emitting diode of claim 2 prolongs and energy-saving control device, it is characterized in that, this is always monitored module and further connects induction light brightness or sense temperature module.
4. the life-span according to claim 1,2 or 3 described light-emitting diodes prolongs and energy-saving control device, it is characterized in that, this lamp string location comprises the light-emitting diode of a plurality of serial connections, each light-emitting diode bypass circuit in parallel, and the monitoring module electrically connects each bypass circuit with always being somebody's turn to do.
5. the life-span according to claim 1,2 or 3 described light-emitting diodes prolongs and energy-saving control device, it is characterized in that this string light module comprises a lamp string control chip, and it is connected between this total monitoring module and each constant-current circuit.
6. the life-span according to the described light-emitting diode of claim 4 prolongs and energy-saving control device, it is characterized in that each string light module comprises a lamp string control chip, and it is connected between this total monitoring module and each constant-current circuit;
This bypass circuit comprises a thyristor and a pulse transformer that is parallel to this light-emitting diode, and this pulse transformer is electrically connected with this lamp string control chip;
Each string light module comprises a comparison circuit, and this comparison circuit is to be connected between this lamp string control chip and constant-current circuit.
7. the life-span according to the described light-emitting diode of claim 4 prolongs and energy-saving control device, it is characterized in that this is always monitored module and connects a pulse width modulation control circuit, and this pulse width modulation control circuit connects an AC/DC modular converter.
8. the life-span according to the described light-emitting diode of claim 5 prolongs and energy-saving control device, it is characterized in that this is always monitored module and connects a pulse width modulation control circuit, and this pulse width modulation control circuit connects an AC/DC modular converter.
9. the life-span according to the described light-emitting diode of claim 6 prolongs and energy-saving control device, it is characterized in that this is always monitored module and connects a pulse width modulation control circuit, and this pulse width modulation control circuit connects an AC/DC modular converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201764118U CN202068629U (en) | 2011-05-24 | 2011-05-24 | Light emitting diode control device for prolonging lifetime and saving energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201764118U CN202068629U (en) | 2011-05-24 | 2011-05-24 | Light emitting diode control device for prolonging lifetime and saving energy |
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| Publication Number | Publication Date |
|---|---|
| CN202068629U true CN202068629U (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201764118U Expired - Fee Related CN202068629U (en) | 2011-05-24 | 2011-05-24 | Light emitting diode control device for prolonging lifetime and saving energy |
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| Country | Link |
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| CN (1) | CN202068629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014015560A1 (en) * | 2012-07-24 | 2014-01-30 | 上海亚明照明有限公司 | Drive circuit for led module |
-
2011
- 2011-05-24 CN CN2011201764118U patent/CN202068629U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014015560A1 (en) * | 2012-07-24 | 2014-01-30 | 上海亚明照明有限公司 | Drive circuit for led module |
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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: 20111207 Termination date: 20150524 |
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| EXPY | Termination of patent right or utility model |