CN204119608U - 220V external control single line transmission LED color changing light - Google Patents
220V external control single line transmission LED color changing light Download PDFInfo
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- CN204119608U CN204119608U CN201420552288.9U CN201420552288U CN204119608U CN 204119608 U CN204119608 U CN 204119608U CN 201420552288 U CN201420552288 U CN 201420552288U CN 204119608 U CN204119608 U CN 204119608U
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- external control
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- changing lamp
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 36
- 230000008054 signal transmission Effects 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 3
- 239000011324 bead Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The 220V external control single-wire transmission LED color-changing lamp comprises a voltage conversion circuit, an LED lamp module, a PWM output circuit and a signal transmission protection circuit; a voltage conversion circuit for converting 220V AC voltage into low voltage DC voltage; each module comprises red, green and blue LED lamp beads with the matched quantity; the PWM output circuit receives an external control signal, transmits the external control signal to the adjacent 220V external control single-wire transmission LED color-changing lamp, and outputs a PWM signal for turning on or turning off the LED module; and the signal transmission protection circuit is used for serially connecting a plurality of 220V external control single-wire transmission LED color-changing lamps and providing protection when the zero line and the live line are reversely connected. The LED color-changing lamps can be directly connected with 220V alternating current, and can be randomly connected in series with each other under the same wiring; the external signal line and the power line share a loop, and are transmitted by a single line.
Description
[technical field]
The utility model relates to field of LED illumination, is specifically related to the LED Color-changing lamp that input voltage is 220V.
[background technology]
Current LED Color-changing lamp great majority adopt 24V DC power supply, therefore need independent distribution transforming depressor or Switching Power Supply, civil power is converted to 24V voltage, due to the Power Limitation by transformer or Switching Power Supply, under identical wiring, the LED Color-changing lamp limited amount of series connection; In order to the lamp string of a greater number of connecting, need to increase power converter, and need rewiring, add many one group of holding wires, trouble is installed, easily make mistakes, and cost is high.
[summary of the invention]
In view of this, the utility model provides a kind of input voltage to be the LED Color-changing lamp of 220V.
The utility model adopts following technical scheme, and structure 220V external control single wire transmission LED Color-changing lamp, comprises 220V external control single wire transmission LED Color-changing lamp, comprise voltage conversion circuit, LED module, PWM output circuit, Signal transmissions protection circuit; Voltage conversion circuit, is transformed into low-voltage DC by 220V alternating voltage; LED module, each module comprises the redness of quantity Matching, green, blue led lamp pearl; PWM output circuit, receives external control signal, and external control signal is passed to adjacent 220V external control single wire transmission LED Color-changing lamp, exports the pwm signal lighted or extinguish to LED module simultaneously; Signal transmissions protection circuit, for multiple 220V external control single wire transmission LED Color-changing lamp series connection, zero line and live wire connect each other provides protection inverse time.
Preferably, described Signal transmissions protection circuit comprises PNP type triode Q3, diode D5, TVS diode D6; The negative pole of D6 connects the base stage of Q3, and its positive pole connects civil power zero line or live wire; The positive pole of D5 connects the emitter of Q3, and negative pole connects control signal wire.
Preferably, described 220V external control single wire transmission LED Color-changing lamp also comprises scanning circuit, and scanning circuit is used for controlling lighting and extinguishing of multiple LED module, and the input of scanning circuit connects the I/O pin of MCU, exports the positive pole connecing LED module.
Preferably, described 220V external control single wire transmission LED Color-changing lamp also comprises sample circuit, for the alternating voltage of sampling is supplied to described PWM output circuit, so that PWM output circuit is synchronized to LED module export the pwm signal lighted or extinguish.
Advantageous Effects of the present utility model is:
1. power conversion module and LED module are integrated, this LED Color-changing lamp can directly connect 220V alternating current, and can be random under identical wiring this LED Color-changing lamp be one another in series, only need by with the plug of power line and control signal wire, socket docking, without rewiring.
2. external signal line and power line common return, single wire transmission, avoids the transmission mode of two holding wires in existing product, and wiring is simple and save wire rod, reduces cost.
3. civil power zero line or live wire connect inverse time, or supply main or control signal wire connect inverse time, and product connects anti-protection.
4., in external control signal or when not connecing external control signal, this Color-changing lamp still can realize dazzling color colour change function.
5. with scanning circuit, the LED module quantity of easily extensible products configuration.
[accompanying drawing explanation]
220V external control single wire transmission LED Color-changing lamp circuit structure composition frame chart in Fig. 1 embodiment one;
220V external control single wire transmission LED Color-changing lamp circuit theory diagrams in Fig. 2 embodiment one;
220V external control single wire transmission LED Color-changing lamp series connection connection diagram in Fig. 3 embodiment one.
220V external control single wire transmission LED Color-changing lamp circuit theory diagrams in Fig. 4 embodiment two;
[embodiment]
In order to make the technical solution of the utility model and technique effect clearly, below in conjunction with drawings and Examples, embodiment of the present utility model is elaborated.
Embodiment one:
As Fig. 1 to Fig. 2, the 220V external control single wire transmission LED Color-changing lamp in the present embodiment, comprises voltage conversion circuit, LED module, PWM output circuit, Signal transmissions protection circuit, scanning circuit, sample circuit.
Power converting circuit connects civil power, and 220V voltage exchange conversion is become low-voltage DC, and input connects civil power, and output connects scanning circuit and PWM output circuit; 220V civil power, first through diode D1 halfwave rectifier, is then input to the power circuit step-down that chip SX3706 is formed, 220V voltage transformation is become 12V direct voltage, then exports as 24V voltage through the voltage stabilizing didoe D3 that burning voltage is 12V.Power converting circuit can also adopt other circuit, converts out the direct current of other electric pressures.
LED module, each module comprises 1 redness, 1 green, 1 blue led lamp pearl, and each lamp group can be mixed into other different colors according to the pwm control signal received, and lights according to pwm control signal or extinguish.Each LED lamp bead current-limiting resistance of connecting is connected with the I/O pin of the MCU in PWM output circuit.
PWM output circuit, exports to according to following sample circuit the pwm signal that LED module synchronism output lights or extinguish; Receive external control signal, and external control signal is passed to adjacent 220V external control single wire transmission LED Color-changing lamp.The MCU model adopted in the present embodiment be in microelectronic CMS16ph55.If external controller, this chip is according to the agreement of the output external control signal of external controller, export corresponding pwm signal, control the color that any one LED module lights, the time of lighting maintenance, the brightness of LED module luminescence, LED module extinguish the time maintained, because external control signal belongs to weak electric signal, easily be disturbed, realize relay function simultaneously, adjacent 220V external control single wire transmission LED Color-changing lamp will be sent to after external control signal process; During as do not connect peripheral control unit, the pwm signal that this MCU fixes according to the LED module that the logic of self exports to connection.No matter whether the LED Color-changing lamp namely in the present embodiment be connected to external control signal, can realize dazzling color colour change function.C5, C8, R18, R20 form the power supply adapter circuit of MCU.
Signal transmissions protection circuit, comprises and prevents connecing circnit NOT and anti-surge circuit, be used for, when 220V external control single wire transmission LED Color-changing lamp is connected, preventing zero line to each other and live wire from connecing instead, giving LED Color-changing lamp and connect anti-protection; When there being surge impact in power supply, suppress surging signal.Prevent connecing circnit NOT primarily of NPN type triode Q3, diode D5, TVS diode D6 are formed.The negative pole of D6 connects the base stage of Q3, and positive pole connects civil power zero line or live wire, and the positive pole of D5 connects the emitter of Q3, connects external control signal after negative pole series resistance R1, parallel resistance R8 between control signal wire and supply main.When the output of higher level 220V external control single wire transmission LED Color-changing lamp and the input of subordinate 220V external control single wire transmission LED Color-changing lamp connect inverse time, namely the zero line of higher level LED Color-changing lamp connects the live wire of subordinate LED Color-changing lamp, the live wire of higher level LED Color-changing lamp connects the zero line of subordinate LED Color-changing lamp, during without reverse-connection preventing circuit, the electric power generating composition loop of higher level LED Color-changing lamp and subordinate LED Color-changing lamp, higher level LED Color-changing lamp and subordinate LED Color-changing lamp will be burned.After increasing reverse-connection preventing circuit, when higher level LED Color-changing lamp D6 positive pole is input as the positive half cycle of civil power sine wave, subordinate's LED Color-changing lamp D6 positive pole is input as the negative half period of civil power sine wave, the Q3 cut-off of higher level LED Color-changing lamp, higher level LED Color-changing lamp does not work, the Q3 conducting of subordinate LED Color-changing lamp, subordinate LED Color-changing lamp Color-changing lamp works.D5 ensures that external control signal transmits to a direction.Anti-surge circuit is made up of TVS diode D8, D9, suppresses the interference signal sealed in from transistor base and power line respectively.
Scanning circuit, is used for controlling lighting and extinguishing of multiple LED module, and the input of scanning circuit connects the I/O pin of MCU, exports the positive pole connecing LED module; In the present embodiment, the I/O pin of MCU is only limited to connection 9 LED lamp bead, namely 3 LED modules, after adding scanning circuit, the quantity of LED module is extended to 6, selects lighting of 6 LED modules with the switching circuit that two PNP type triode Q1, Q2 are formed and extinguishes.The I/O pin of MCU is connected after Q2 series limiting resistor R13, when MCU output low level is to Q2, Q2 conducting, export high level, R10 is reverse-biased, and Q1 ends, the LED module just very high level be connected with Q2 collector electrode, the LED module just very low level be connected with Q1 collector electrode; When MCU exports high level to Q2, Q2 ends, output low level, R10 positively biased, Q1 conducting, the LED module just very low level be connected with Q2 collector electrode, the LED module just very high level be connected with Q1 collector electrode.
Sample circuit, exports to PWM output circuit by city's electrical input signal of collection, so that PWM output circuit controls the synchronous effect lighted and extinguish of LED module.Sample circuit is by resistance R16, and R15 is composed in series, and the voltage that wherein R15 detects exports to the MCU in PWM output circuit.When there being multiple 220V external control single wire transmission LED Color-changing lamp serial or parallel connection, the time point that each lamp is lighted and extinguished, light or extinguish the time of maintenance, better effects if after the color lighted and brilliant synchrotron, voltage signal after sampling is exported to the MCU of PWM output circuit by the sample circuit in each 220V external control single wire transmission LED Color-changing lamp, and namely MCU controls LED lamp bead synchronous working after the voltage on R15 being detected.
As Fig. 3, during multiple LED Color-changing lamp series connection, only the Male/female connector with power line and control signal wire need be docked; Control signal wire and power line common return, namely solid wire completes transmission, avoids two control signal wire transmission modes in existing product, and wiring is simple, easy to maintenance, has saved scene, has reduced cost.
Embodiment two:
Roughly the same with in embodiment one of 220V external control single wire transmission LED Color-changing lamp in the present embodiment, difference is to only have a LED module, use as point-source of light, therefore the present embodiment does not possess scanning circuit in embodiment one and sample circuit, as Fig. 4.
The foregoing is only the preferred embodiment of this patent, be not limited to this patent, for a person skilled in the art, this patent can have various modifications and variations.Within all spirit at this patent and principle, any amendment done, equivalent replacement, improvement etc., within the protection range that all should be included in this patent.
Claims (4)
1.220V external control single wire transmission LED Color-changing lamp, comprises voltage conversion circuit, LED module, PWM output circuit, Signal transmissions protection circuit;
Voltage conversion circuit, is transformed into low-voltage DC by 220V alternating voltage;
LED module, each module comprises the redness of quantity Matching, green, blue led lamp pearl;
PWM output circuit, receives external control signal, and external control signal is passed to adjacent 220V external control single wire transmission LED Color-changing lamp, exports the pwm signal lighted or extinguish to LED module simultaneously;
Signal transmissions protection circuit, for multiple 220V external control single wire transmission LED Color-changing lamp series connection, zero line and live wire connect each other provides protection inverse time.
2., as the 220V external control single wire transmission LED Color-changing lamp in claim 1, it is characterized in that: described Signal transmissions protection circuit comprises PNP type triode Q3, diode D5, TVS diode D6; The negative pole of D6 connects the base stage of Q3, and its positive pole connects civil power zero line or live wire; The positive pole of D5 connects the emitter of Q3, and negative pole connects control signal wire.
3. as the 220V external control single wire transmission LED Color-changing lamp in claim 1, it is characterized in that: described 220V external control single wire transmission LED Color-changing lamp also comprises scanning circuit, scanning circuit is used for controlling lighting and extinguishing of multiple LED module, the input of scanning circuit connects the I/O pin of MCU, exports the positive pole connecing LED module.
4. as 220V external control single wire transmission LED Color-changing lamp arbitrary in claims 1 to 3, it is characterized in that: described 220V external control single wire transmission LED Color-changing lamp also comprises sample circuit, for the alternating voltage of sampling is supplied to described PWM output circuit, so that PWM output circuit is synchronized to LED module export the pwm signal lighted or extinguish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552288.9U CN204119608U (en) | 2014-09-24 | 2014-09-24 | 220V external control single line transmission LED color changing light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552288.9U CN204119608U (en) | 2014-09-24 | 2014-09-24 | 220V external control single line transmission LED color changing light |
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| Publication Number | Publication Date |
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| CN204119608U true CN204119608U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420552288.9U Expired - Fee Related CN204119608U (en) | 2014-09-24 | 2014-09-24 | 220V external control single line transmission LED color changing light |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104602419A (en) * | 2015-02-12 | 2015-05-06 | 上海欧美拉光电股份有限公司 | Energy-saving LED lamp digital scanning control system |
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2014
- 2014-09-24 CN CN201420552288.9U patent/CN204119608U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104602419A (en) * | 2015-02-12 | 2015-05-06 | 上海欧美拉光电股份有限公司 | Energy-saving LED lamp digital scanning control system |
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| 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: 20150121 Termination date: 20150924 |
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| EXPY | Termination of patent right or utility model |