CN203691705U - LED intelligent switch control circuit - Google Patents
LED intelligent switch control circuit Download PDFInfo
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- CN203691705U CN203691705U CN201420013737.2U CN201420013737U CN203691705U CN 203691705 U CN203691705 U CN 203691705U CN 201420013737 U CN201420013737 U CN 201420013737U CN 203691705 U CN203691705 U CN 203691705U
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- circuit
- control circuit
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- switching control
- switch
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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 provides an LED intelligent switch control circuit. The circuit comprises an LED constant current drive circuit, an intelligent switch converting circuit, a switch detection circuit and an LED array circuit. The LED constant current drive circuit, the intelligent switch converting circuit and the LED array circuit are successively connected with each other. The switch detection circuit is connected between the LED constant current drive circuit and the intelligent switch converting circuit. The LED intelligent switch control circuit can selectively adjust color temperature of the LED lamps.
Description
Technical field
The utility model relates to LED color-temperature regulating driving power, especially relates to a kind of LED intelligent switching control circuit.
Background technology
Because LED light fixture is through this development in several years, technology is ripe gradually.Therefore LED light fixture proceeds to market lighting of home more widely by public illumination and commercial lighting gradually, therefore the selection of LED light fixture colour temperature is required to flexible and diverse more, just requires LED light fixture to have the alternative adjusting of colour temperature.
Therefore, how to solve the problem that can not optionally regulate LED light fixture colour temperature of the prior art, become the technical problem that current urgent need solves.
Utility model content
The purpose of this utility model is to propose a kind of LED intelligent switching control circuit, and it can optionally regulate LED light fixture colour temperature.
The technical solution of the utility model is as follows:
A kind of LED intelligent switching control circuit, it comprises LED constant-current drive circuit, intelligent switch change-over circuit, switch detection circuit and LED array circuit, described LED constant-current drive circuit, described intelligent switch change-over circuit and described LED array circuit are connected successively, and described switch detection circuit is connected between described LED constant-current drive circuit and described intelligent switch change-over circuit.
Wherein, described LED array circuit comprises warm white LEDs array loop and cold white LEDs array loop.
Wherein, described LED constant-current drive circuit comprises current rectifying and wave filtering circuit, pfc circuit and IC constant current output control circuit.
Wherein, described current rectifying and wave filtering circuit comprises diode D1, D2, D3, D4 and capacitor C 1.
Wherein, described pfc circuit comprises capacitor C 2, C3, diode D5, D6, D7.
Wherein, described IC constant current output control circuit comprises resistance R 1, R2, R3, RS1, RS2, capacitor C 4, C5, constant-current driven chip U1, diode D8 and inductance T1.
Wherein, constant-current driven chip U1 adopts chip BP2833D.
Wherein, described switch detection circuit comprises capacitor C 6, C7, resistance R 6, R7 and diode DZ1, capacitor C 6 positive pole and diode DZ1 negative pole and resistance R 6 one end parallel connections, and be connected C6 negative pole and diode DZ1 positive pole and resistance R 6 other end parallel connections with resistance R 7 one end.
Wherein, described LED intelligent switching control circuit comprises switch control chip U2, resistance R 4, R5, R8, R9, R10, R11, R12, diode D9, capacitor C 8, metal-oxide-semiconductor Q1, Q2, Q3, Q4, the L1 pin of switch control chip U2 and R10, Q4, R12, Q2 form first group of switching circuit, and the L2 pin of U2 and R9, Q3, R11, Q1 form second group of switching circuit.
Wherein, switch control chip U2 adopts chip HL2608.
Compared with prior art, the utility model uses LED constant-current drive circuit to combine with switch detection circuit and LED intelligent switch change-over circuit, composition conversion and control driving LED array circuit, thus realize switch intelligence color-temperature regulating function; The utility model uses two kinds of colour temperature LED arrays just can realize the conversion effect of three kinds of colour temperatures, thereby has reduced light fixture cost; The utility model switch intelligence color-temperature regulating LED fluorescent tube, the colour temperature of using original regular tap just can realize LED fluorescent tube regulates, need not additional remote controller and change original mains circuit, easy for installation, simple and practical, reduce and install and use cost simultaneously.
Brief description of the drawings
Fig. 1 is the module diagram of the LED intelligent switching control circuit of the utility model one embodiment.
Fig. 2 is the physical circuit figure of the LED intelligent switching control circuit in Fig. 1.
Embodiment
As shown in Figure 1, the LED intelligent switching control circuit of the utility model one embodiment comprises LED constant-current drive circuit, intelligent switch change-over circuit, switch detection circuit and LED array circuit.LED constant-current drive circuit, intelligent switch change-over circuit and LED array circuit are connected successively.Switch detection circuit is connected between LED constant-current drive circuit and intelligent switch change-over circuit.Switch detection circuit is disconnected to the time of closing again while closing for detection of switch, thereby controls the state of Intelligent switching circuit, thereby drives the LED array of corresponding colour temperature.Intelligent switch change-over circuit, for recognizing the clock signal of switch detection circuit, drives corresponding colour temperature LED array to realize control switch conversion.
Wherein, LED array circuit comprises warm white LEDs array loop and cold white LEDs array loop, intelligent switch change-over circuit drives the LED array of corresponding colour temperature, thereby realizes the mutual conversion of cold white 5700-6500K colour temperature, warm white 2800-3200K colour temperature, just white 4000-4500K colour temperature.Mixing of the gentle warm white temperature of positive white Wen Weileng white, thus can reduce by one group of LED array, effectively reduce light fixture cost.
As shown in Figure 2, LED constant-current drive circuit is non-isolation constant-current drive circuit, and it comprises the current rectifying and wave filtering circuit being made up of diode D1, D2, D3, D4 and capacitor C 1, the pfc circuit being made up of capacitor C 2, C3 and diode D5, D6, D7 and the IC constant current output control circuit being made up of resistance R 1, R2, R3, RS1, RS2, capacitor C 4, C5, constant-current driven chip U1, diode D8 and inductance T1.Wherein, constant-current driven chip U1 adopts constant-current driven chip BP2833D.
Described switch detection circuit is made up of capacitor C 6, C7, resistance R 6, R7 and diode DZ1.Capacitor C 6 positive pole and diode DZ1 negative pole and resistance R 6 one end parallel connections, and be connected with resistance R 7 one end, C6 negative pole and diode DZ1 positive pole and resistance R 6 other end parallel connections, and be connected with the V-output of LED constant-current drive circuit, detect the sensitivity of urban electric power switch shut-in time to realize described switch detection circuit, thereby the conversion and control time is set is in 0.5-2 second, convert clock signal to via R7 and C7 and offer LED intelligent control switch circuit.
Described LED intelligent switching control circuit is made up of switch control chip U2, resistance R 4, R5, D9, C8, R8, R9, R10, R11, R12, Q1, Q2, Q3, Q4.Wherein, switch control chip U2 adopts switch control chip HL2608.D9 provides voltage for switch control chip U2, anodal R5, DZ1, C6, R6, the R7 common port of connecting of D9, and D9 negative pole connects VDD 5 pin of switch control chip U2 and connects the anodal and R8 one end of C8, and the other end of R8 is connected with C8 negative pole.R8, C8 arrange circuit resetting time, in the utility model embodiment, are set to 5 seconds resetting time, and urban electric power switch disconnects after 5 seconds more closed LED intelligent switching control circuit reset to initial colour temperature.R4, R5 connect the V+ output of constant-current drive circuit, so that described LED intelligent switching control circuit voltage to be provided, are disconnected to closed time detecting for switch detection circuit provides urban electric power switch simultaneously.
The L1 pin of switch control chip U2 and R10, Q4, R12, Q2 form first group of cold white LEDs array of the initial warm colour of switching circuit control, in the time that urban electric power switch is closed, the L1 pin of U2 is electronegative potential, Q4 saturation conduction, collector electrode output high potential provides base bias voltage via R12 to Q2, make Q2 saturation conduction, Q2 collector potential drags down, and connects cold white LEDs array and forms conducting loop and light, L2 pin and the R9 of switch control chip U2, Q3, R11, Q1 forms the warm white LEDs array of two groups of colour temperatures of second group of switching circuit control, when urban electric power switch is by being closed into when again closed in 0.5-2 second after disconnecting, switch detection circuit is exported via R7, C7 provides clock trigger signal to U2, making the L1 pin of U2 be transformed into high potential Q4 by electronegative potential ends, collector electrode Non voltage output, Q2 cut-off is equivalent to switch and disconnects, cold white LEDs array loop disconnects and not working, the L2 pin of U2 converts electronegative potential to by high potential simultaneously, Q3 saturation conduction, collector electrode output high potential provides base bias voltage via R11 to Q1, make Q1 saturation conduction, Q1 collector potential drags down, connecting warm white LEDs array forms conducting loop and lights, when urban electric power switch is again by being closed into when again closed in 0.5-2 second after disconnecting, the L1 of U2 and L2 pin be output low level simultaneously, make the conducting simultaneously of two groups of switching circuits, light cold white LEDs array and warm white LEDs array simultaneously, just be combined into the positive white light of the third colour temperature, thereby complete a circulation of switch intelligence color-temperature regulating: cold white---in vain warm---just white conversion.
Compared with prior art, the utility model uses LED constant-current drive circuit to combine with switch detection circuit and LED intelligent switch change-over circuit, composition conversion and control driving LED array circuit, thus realize switch intelligence color-temperature regulating function; The utility model uses two kinds of colour temperature LED arrays just can realize the conversion effect of three kinds of colour temperatures, thereby has reduced light fixture cost; The utility model switch intelligence color-temperature regulating LED control circuit, the colour temperature of using original regular tap just can realize LED light fixture regulates, need not additional remote controller and change original mains circuit, easy for installation, simple and practical, reduce and install and use cost simultaneously.
Claims (10)
1. a LED intelligent switching control circuit, it is characterized in that, comprise LED constant-current drive circuit, intelligent switch change-over circuit, switch detection circuit and LED array circuit, described LED constant-current drive circuit, described intelligent switch change-over circuit and described LED array circuit are connected successively, and described switch detection circuit is connected between described LED constant-current drive circuit and described intelligent switch change-over circuit.
2. intelligent switching control circuit according to claim 1, is characterized in that, described LED array circuit comprises warm white LEDs array loop and cold white LEDs array loop.
3. intelligent switching control circuit according to claim 1, is characterized in that, described LED constant-current drive circuit comprises current rectifying and wave filtering circuit, pfc circuit and IC constant current output control circuit.
4. intelligent switching control circuit according to claim 3, is characterized in that, described current rectifying and wave filtering circuit comprises diode D1, D2, D3, D4 and capacitor C 1.
5. intelligent switching control circuit according to claim 3, is characterized in that, described pfc circuit comprises capacitor C 2, C3, diode D5, D6, D7.
6. intelligent switching control circuit according to claim 3, is characterized in that, described IC constant current output control circuit comprises resistance R 1, R2, R3, RS1, RS2, capacitor C 4, C5, constant-current driven chip U1, diode D8 and inductance T1.
7. intelligent switching control circuit according to claim 6, is characterized in that, described constant-current driven chip U1 adopts chip BP2833D.
8. intelligent switching control circuit according to claim 1, it is characterized in that, described switch detection circuit comprises capacitor C 6, C7, resistance R 6, R7 and diode DZ1, capacitor C 6 positive pole and diode DZ1 negative pole and resistance R 6 one end parallel connections, and be connected capacitor C 6 negative poles and diode DZ1 positive pole and resistance R 6 other end parallel connections with resistance R 7 one end.
9. intelligent switching control circuit according to claim 1, it is characterized in that, described LED intelligent switching control circuit comprises switch control chip U2, resistance R 4, R5, R8, R9, R10, R11, R12, diode D9, capacitor C 8, metal-oxide-semiconductor Q1, Q2, Q3, Q4, the L1 pin of switch control chip U2 and R10, Q4, R12, Q2 form first group of switching circuit, and the L2 pin of U2 and R9, Q3, R11, Q1 form second group of switching circuit.
10. intelligent switching control circuit according to claim 9, is characterized in that, switch control chip U2 adopts chip HL2608.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013737.2U CN203691705U (en) | 2014-01-09 | 2014-01-09 | LED intelligent switch control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013737.2U CN203691705U (en) | 2014-01-09 | 2014-01-09 | LED intelligent switch control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203691705U true CN203691705U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420013737.2U Expired - Fee Related CN203691705U (en) | 2014-01-09 | 2014-01-09 | LED intelligent switch control circuit |
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| Country | Link |
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| CN (1) | CN203691705U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104219840A (en) * | 2014-08-27 | 2014-12-17 | 深圳市芯飞凌半导体有限公司 | LED switch color temperature regulation controller and LED drive circuit |
| CN104470091A (en) * | 2014-11-21 | 2015-03-25 | 南京大学 | Low-power current self-locking LED controller |
-
2014
- 2014-01-09 CN CN201420013737.2U patent/CN203691705U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104219840A (en) * | 2014-08-27 | 2014-12-17 | 深圳市芯飞凌半导体有限公司 | LED switch color temperature regulation controller and LED drive circuit |
| CN104470091A (en) * | 2014-11-21 | 2015-03-25 | 南京大学 | Low-power current self-locking LED controller |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong province Shenzhen Guangming yulv Village Sixth Industrial Zone 19 Patentee after: Shenzhen excellent photoelectric Co., Ltd. Address before: 518000 Guangdong province Shenzhen Guangming yulv Village Sixth Industrial Zone 19 Patentee before: GUANGDONG JIJIA PHOTOELECTRIC TECHNOLOGY CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20190109 |