CN207039947U - A kind of LED lamp circuit of tunable optical and colour temperature - Google Patents
A kind of LED lamp circuit of tunable optical and colour temperature Download PDFInfo
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- CN207039947U CN207039947U CN201720703892.0U CN201720703892U CN207039947U CN 207039947 U CN207039947 U CN 207039947U CN 201720703892 U CN201720703892 U CN 201720703892U CN 207039947 U CN207039947 U CN 207039947U
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- circuit
- light source
- resistance
- led light
- mcu
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
Abstract
A kind of LED lamp circuit of tunable optical and colour temperature, including some LED light source modules, in addition to AC DC power modules and MCU control circuit；The AC DC power modules are provided with rectification filtering unit and control loop unit, rectification filtering unit input connection AC power, and DC output end is connected with MCU control circuit and control loop unit；The driving that the control loop unit is connected as LED light source with LED light source module；The MCU control circuit is connected with some LED light source modules and switching switch to switch the switch that the signal of input controls each LED light source module according to switching.The utility model can conveniently realize toning, color-temperature regulating, reach the different luminous fluxes of output, the purpose of different-colour, circuit is simple, simple operation.
Description
Technical field
It the utility model is related to the LED field, the LED lamp circuit of particularly a kind of tunable optical and colour temperature.
Background technology
LED light source with long lifespan, it is pollution-free, light efficiency is high the features such as just progressively substitute incandescent lamp and fluorescent light, so
There is the LED lamp by the use of LED as light source.
At present, the dimming mode of LED is divided into direct current light modulation and PWM dims two kinds.Due to PWM light modulation have it is photochromic not
Become, the advantages that stability is preferable during low-light level, and widely used by those skilled in the art.For some special light sources rings
Border, the brightness to LED lamp is not only needed to be adjusted, it is also necessary to which the colour temperature of LED lamp is adjusted.In the prior art,
The LED of different color light is packaged in a single encapsulating structure by generally use, the LED lamp independent as one, passes through difference
Combining to obtain different colour temperatures for the LED of coloured light, realizes the regulation to LED lamp colour temperature.
Utility model content
Main purpose of the present utility model is to propose that one kind is each by detecting the control of AC-DC power module switching signal
The tunable optical of the switch of LED light source module and the LED of colour temperature, can be used per paths of LEDs light source module group different light source numbers and
Colour temperature.
The utility model adopts the following technical scheme that：
A kind of LED lamp circuit of tunable optical and colour temperature, including some LED light source modules, it is characterised in that：Also include AC-
DC power module and MCU control circuit；The AC-DC power module is provided with rectification filtering unit and control loop unit, the rectification
Filter unit input connects AC power, and DC output end is connected with MCU control circuit and control loop unit；The control is returned
The driving that road unit is connected as LED light source with LED light source module；The MCU control circuit and some LED light source modules and switching
Switch is connected controls colour temperature corresponding to the switch output of each LED light source module to switch the signal of input according to switching.
Preferably, the MCU control circuit also includes mu balanced circuit, change-over circuit, main control MCU and ON-OFF control circuit,
The mu balanced circuit is connected with the DC output end and main control MCU to provide stable operating voltage；The change-over circuit and main control MCU
It is connected and is converted to low voltage signal so that the signal for switching input will be switched；The ON-OFF control circuit and some LED light source module phases
Even；The main control MCU is connected with ON-OFF control circuit to judge switching on off state according to low voltage signal, and controlling switch controls
Circuit state is to be switched on or switched off each LED light source module.
Preferably, the mu balanced circuit includes diode D3, resistance R10 and diode ZD2；Diode D3 positive pole with
The DC output end of the rectification filtering unit is connected, and negative pole is connected with described resistance R10 one end；The resistance R10 other ends with
Diode ZD2 negative poles are connected, diode ZD2 plus earths.
Preferably, the change-over circuit includes diode D2, resistance R7, resistance R8, diode ZD1 and resistance R9；This two
Pole pipe D2 positive poles are connected with AC power, and negative pole is connected with resistance R7 one end；The resistance R7 other ends are connected with resistance R8 one end,
The resistance R8 other ends are connected with diode ZD1 negative poles, diode ZD1 plus earths.
Preferably, the ON-OFF control circuit includes several and some one-to-one three poles of LED light source module
Pipe, the base stage of the triode are connected with the main control MCU, its grounded emitter, its colelctor electrode and corresponding LED light source module
Negative pole is connected.
Preferably, the ON-OFF control circuit includes several and some one-to-one fields effects of LED light source module
Ying Guan, the grid of each FET are connected with the main control MCU, its source ground, and it drains and corresponding LED light source module
Negative pole be connected.
Preferably, the main control MCU is provided with storage circuit to store the ON-OFF control circuit state of last time.
Preferably, the main control MCU is provided with closure counter to count the closure number of the input switch in certain time.
Preferably, the rectification filtering unit includes rectifier bridge and filter circuit, the input connection exchange of the rectifier bridge
Power supply, output end connection filter circuit.
From above-mentioned to description of the present utility model, compared with prior art, the utility model has following beneficial to effect
Fruit：
1st, LED lamp circuit of the present utility model, detected by MCU control circuit and receive switching switching signal, and according to cutting
The signal for changing switch input controls the switch of each LED light source module, realizes toning, color-temperature regulating, reach the different luminous fluxes of output,
The purpose of different-colour, and ensure all to meet the requirements during the output of each colour temperature, circuit is simple, simple operation.
2nd, LED lamp circuit of the present utility model, its LED light source module is independent control, and different light source numbers can be used
Or the LED lamp bead of colour temperature, combination are various.
3rd, LED lamp circuit of the present utility model, the switch that its main control MCU is provided with storage circuit to store the last time control
Circuit state, memory function is realized, it is very practical.
Brief description of the drawings
Fig. 1 is the circuit diagram of the utility model embodiment one；
Fig. 2 is the circuit diagram of the utility model AC-DC power module；
Fig. 3 is the circuit diagram of the utility model MCU control circuit；
Fig. 4 is the circuit diagram of the utility model embodiment two.
Embodiment
Below by way of embodiment, the utility model will be further described.
Referring to figs. 1 to Fig. 3, a kind of LED lamp circuit of tunable optical and colour temperature, including some LED light source modules 3, AC-DC electricity
Source module 1 and MCU control circuit 2 etc..Different light source numbers can be used in every paths of LEDs light source module group of some LED light source modules 3
Or the LED lamp bead of colour temperature.
The AC-DC power module 1 is provided with rectification filtering unit and control loop unit, and the rectification filtering unit includes rectification
Bridge and filter circuit, the rectifier bridge are provided with four diode BD1, the input connection AC power of the rectifier bridge, and output end connects
Connect filter circuit.The filter circuit includes resistance R1, inductance L1 and electric capacity EC2, resistance R1 and inductance L1 one end and rectification
The output head anode of bridge is connected, and resistance R1 and inductance the L1 other end are controlled as DC output end and with electric capacity EC2 positive poles, MCU
Circuit 2 processed, control loop unit are connected, and electric capacity EC2 negative poles are connected and are grounded with the negative pole of output end of rectifier bridge.The control loop
Driving of the unit as LED light source, it can be that RCC modes drive the oscillating circuit of LED light source module, or it is non-isolated or every
From the circuit of structure driving LED light source module.Specifically include resistance R3, resistance R15, resistance R4, resistance R16, resistance R5, electricity
Hold C1, diode D1, inductance L3, electric capacity EC, LED constant current driving chip U1.Resistance R3 one end is connected with electric capacity EC2 positive poles,
Other end connection R15 one end.The R15 other ends connect electric capacity C1 one end and chip U1 VCC pin, C1 other ends connection resistance R4 mono-
End and chip U1 NC pin simultaneously together with resistance R16 one end, resistance R5 one end, inductance L3 one end, diode D1 negative poles and are grounded.
Another chip termination U1 of resistance R4 ROVP pin.Resistance R16 and the resistance R5 other ends are connected with chip U1 CS pin.The electricity
The sense L3 other ends are connected with resistance R6 one end, electric capacity EC positive poles and LED light source module positive pole, the resistance R6 other ends, electric capacity EC
Negative pole, electric capacity D1 positive poles are connected and are grounded.
The MCU control circuit 2 is connected with some LED light source modules 3 and switching switch to switch the letter of input according to switching
The switch of number each LED light source module of control.Switching switch is installed on ac power input end.The MCU control circuit 2 includes
Mu balanced circuit, change-over circuit, main control MCU and ON-OFF control circuit etc..The main control MCU is the work(such as integrated Timer/PWM/EEPROM
The general MCU chip U2 of energy, there is sleep (low-power consumption) isotype.
The mu balanced circuit is connected with DC output end and main control MCU to provide stable operating voltage.Mu balanced circuit includes two
Pole pipe D3, resistance R10, diode ZD2, electric capacity EC4, electric capacity C4 etc..Diode D3 positive pole and rectification filtering unit it is straight
Stream output end is connected, and negative pole is connected with resistance R10 one end；The resistance R10 other ends and diode ZD2 negative poles, electric capacity EC4 are just
The pin (1) of pole, electric capacity C4 one end and main control MCU, i.e. chip U2 is connected, diode ZD2 positive poles, electric capacity EC4 negative poles, electric capacity
The C4 other ends are grounded.
The change-over circuit is connected with main control MCU is converted to low voltage signal will switch the signal for switching input.Specifically
Change-over circuit includes diode D2, resistance R7, resistance R8, diode ZD1 and resistance R9 etc..Diode D2 positive poles and alternating current
Source is connected, and negative pole is connected with resistance R7 one end.The resistance R7 other ends are connected with resistance R8 one end, the resistance R8 other ends and two poles
Pipe ZD1 negative poles, resistance R9 one end are connected, diode ZD1 positive poles and resistance R9 other ends ground connection.
ON-OFF control circuit includes several and some LED light source modules, i.e. module LED 1, LED2, LEDn is corresponded
Triode Q1, Q2, Qn, and resistance R12, resistance R13, resistance R14 etc., resistance R12, resistance R13, resistance R14 one end
Pin (5), (6) with chip U2, (7) are connected, resistance R12, resistance R13, resistance R14 the other end respectively with the triode
Q1, Q2, Qn base stage are connected, the triode Q1, Q2, Qn grounded emitter, colelctor electrode respectively with corresponding LED light source module
Negative pole be connected.
Main control MCU of the present utility model detects the signal of a pin (2) according to specified time interval, and inquiry whether there is level
Change, the level change represent the state of switching switch, according to the state control switch control circuit state of switch to connect or
Disconnect each LED light source module.Main control MCU of the present utility model is provided with storage circuit and closure counter, and the storage circuit is used
In the last ON-OFF control circuit state of storage, the closure counter is used for the closure for counting the input switch in certain time
Number.
Assuming that having three module LEDs 1, LED2 and LED3, operation principle of the present utility model is as follows：
When by toggle switch, from closure is disconnected to, then chip U2 pins (5) put high level, and U2 pins (6,7) set low electricity
Flat, now trigger triode Q1 is turned on, then LED1 is bright, and LED2 and LED3 do not work.
Again by toggle switch from closure is disconnected to, then chip U2 pins (6) put high level, and U2 pins (5,7) are set low
Level, now trigger triode Q2 conductings, LED2 is bright, and LED1 and LED3 do not work.
Again by toggle switch from closure is disconnected to, then chip U2 pins (7) put high level, and U2 pins (5,6) are set low
Level, now trigger triode Q3 conductings, LED3 is bright, and LED1 and LED2 do not work.
LED lamp circuit of the present utility model, when outside, switching is switched from when being disconnected to closing time ＜ T, is often switched once
It is bright by LED1, into LED2 is bright, the bright working conditions of LED3, so circulation.When external input switches are from being disconnected to closing time >=T
When, main control MCU can remember state when last time disconnects, and now open switch again, and LED can be operated in last state, such as be originally
LED1 is bright, then is again turned on also bright for LED1.T is interval time, can be configured as needed, such as 2s.
Embodiment two
Reference picture 4, a kind of color-adjustable of the present embodiment and the LED lamp circuit of colour temperature, its technical characteristics and embodiment
One is identical, and difference is：ON-OFF control circuit includes several and some LED light source modules, i.e. module LED 1, LED2, LEDn
One-to-one FET pipe Q1, Q2, Qn, and resistance R12, resistance R13, resistance R14, resistance R17, resistance R18 and resistance
R19 etc..Resistance R12, resistance R13, resistance R14 one end and chip U2 pin (5), (6), (7) are connected, resistance R12,
Resistance R13, resistance R14 other end grid and resistance R17, the resistance R18 and resistance with the FET Q1, Q2, Qn respectively
R19 one end is connected, FET Q1, Q2, Qn source electrode be connected respectively with resistance R17, resistance R18 and the resistance R19 other ends and
Ground connection.FET Q1, Q2, Qn drain electrode are connected with the negative pole of corresponding LED light source module.
Specific embodiment of the present utility model is above are only, but design concept of the present utility model is not limited thereto,
All changes for carrying out unsubstantiality to the utility model using this design, all should belong to the row for invading scope of protection of the utility model
For.
Claims (9)
1. the LED lamp circuit of a kind of tunable optical and colour temperature, including some LED light source modules, it is characterised in that：Also include AC-DC
Power module and MCU control circuit；The AC-DC power module is provided with rectification filtering unit and control loop unit, rectification filter
Ripple unit input connects AC power, and DC output end is connected with MCU control circuit and control loop unit；The control loop
The driving that unit is connected as LED light source with LED light source module；The MCU control circuit is opened with some LED light source modules and switching
Close to be connected and control colour temperature corresponding to the switch output of each LED light source module to switch the signal of input according to switching.
A kind of 2. LED lamp circuit of tunable optical and colour temperature as claimed in claim 1, it is characterised in that：The MCU control circuit
Also include mu balanced circuit, change-over circuit, main control MCU and ON-OFF control circuit, the mu balanced circuit and the DC output end and master
Control MCU is connected to provide stable operating voltage；The change-over circuit is connected with main control MCU to be changed with will switch the signal for switching input
For low voltage signal；The ON-OFF control circuit is connected with some LED light source modules；The main control MCU is connected with ON-OFF control circuit
To judge switching on off state according to low voltage signal, and controlling switch control circuit state is to be switched on or switched off each LED light
Source module.
A kind of 3. LED lamp circuit of tunable optical and colour temperature as claimed in claim 2, it is characterised in that：The mu balanced circuit bag
Include diode D3, resistance R10 and diode ZD2；Diode D3 positive pole and the DC output end of the rectification filtering unit
It is connected, negative pole is connected with described resistance R10 one end；The resistance R10 other ends are connected with diode ZD2 negative poles, and diode ZD2 is just
Pole is grounded.
A kind of 4. LED lamp circuit of tunable optical and colour temperature as claimed in claim 2, it is characterised in that：The change-over circuit bag
Include diode D2, resistance R7, resistance R8, diode ZD1 and resistance R9；Diode D2 positive poles are connected with AC power, negative pole
It is connected with resistance R7 one end；The resistance R7 other ends are connected with resistance R8 one end, the resistance R8 other ends and diode ZD1 negative pole phases
Even, diode ZD1 plus earths.
A kind of 5. LED lamp circuit of tunable optical and colour temperature as claimed in claim 2, it is characterised in that：The switch control electricity
Road includes several and some one-to-one triodes of LED light source module, the base stage of the triode and the main control MCU
It is connected, its grounded emitter, its colelctor electrode is connected with the negative pole of corresponding LED light source module.
A kind of 6. LED lamp circuit of tunable optical and colour temperature as claimed in claim 2, it is characterised in that：The switch control electricity
Road includes several and some one-to-one FETs of LED light source module, the grid of each FET with it is described
Main control MCU is connected, its source ground, and its drain electrode is connected with the negative pole of corresponding LED light source module.
A kind of 7. LED lamp circuit of tunable optical and colour temperature as claimed in claim 2, it is characterised in that：The main control MCU is provided with
Storage circuit with store last time ON-OFF control circuit state.
A kind of 8. LED lamp circuit of tunable optical and colour temperature as claimed in claim 2, it is characterised in that：The main control MCU is provided with
Counter is closed to count the closure number of the input switch in certain time.
A kind of 9. LED lamp circuit of tunable optical and colour temperature as claimed in claim 1, it is characterised in that：The rectifying and wave-filtering list
Member includes rectifier bridge and filter circuit, the input connection AC power of the rectifier bridge, output end connection filter circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720703892.0U CN207039947U (en) | 2017-06-16 | 2017-06-16 | A kind of LED lamp circuit of tunable optical and colour temperature |
| DE202017107493.5U DE202017107493U1 (en) | 2017-06-16 | 2017-12-08 | LED light with adjustable light and adjustable color temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720703892.0U CN207039947U (en) | 2017-06-16 | 2017-06-16 | A kind of LED lamp circuit of tunable optical and colour temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207039947U true CN207039947U (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720703892.0U Active CN207039947U (en) | 2017-06-16 | 2017-06-16 | A kind of LED lamp circuit of tunable optical and colour temperature |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN207039947U (en) |
| DE (1) | DE202017107493U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282932A (en) * | 2018-03-21 | 2018-07-13 | 厦门讯亨电子科技有限公司 | A kind of seven-color LED control circuit and its control method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110519879A (en) * | 2018-05-21 | 2019-11-29 | 深圳市朗科智能电气股份有限公司 | LED drive power based on the toning of 2.4G remote control light modulating |
| CN108770136B (en) * | 2018-08-17 | 2024-01-05 | 东莞邦达五金有限公司 | Dimming and toning LED isolation constant-current driving power supply |
| CN109068451B (en) * | 2018-09-17 | 2024-03-15 | 佛山市南海雷恩光电科技有限公司 | LED panel light capable of adjusting color temperature and brightness |
-
2017
- 2017-06-16 CN CN201720703892.0U patent/CN207039947U/en active Active
- 2017-12-08 DE DE202017107493.5U patent/DE202017107493U1/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282932A (en) * | 2018-03-21 | 2018-07-13 | 厦门讯亨电子科技有限公司 | A kind of seven-color LED control circuit and its control method |
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| Publication number | Publication date |
|---|---|
| DE202017107493U1 (en) | 2018-01-09 |
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Effective date of registration: 20200422 Address after: Xinyang Industrial Park Haicang District of Xiamen City, Fujian province 361000 after Cheung Road No. 88 Patentee after: XIAMEN YANKON ENERGETIC LIGHTING Co.,Ltd. Address before: 361000, Xiamen District, Haicang District, Fujian Province Road, No. 88, science building, two floor, A District Patentee before: Xiamen Energetic Lighting Co.,Ltd. |