CN208707991U - A kind of switch selection colour temperature light adjusting circuit and LED lamp - Google Patents
A kind of switch selection colour temperature light adjusting circuit and LED lamp Download PDFInfo
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- CN208707991U CN208707991U CN201821178459.0U CN201821178459U CN208707991U CN 208707991 U CN208707991 U CN 208707991U CN 201821178459 U CN201821178459 U CN 201821178459U CN 208707991 U CN208707991 U CN 208707991U
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Abstract
A kind of switch selection colour temperature light adjusting circuit and LED lamp, it includes the light-adjusting module for being detected to the output electric current after power rectifier, for switching the switch module of different-colour gear, for being adjusted the operating current ratio of each paths of LEDs lamp string according to output electric current and colour temperature gear to control the toning module of multi-way LED lamp string color temperature change.It is combined by adding toning module and the light-adjusting module of Unisolated switch power supply, and multiple color temperatures are integrated in toning inside modules and adjust output control logic, different output control logics are made to correspond to a kind of colour temperature gear, the operating current ratio that the warm white LED light and cool white LED light in LED multi-path lamp string are selected by external switch module, can make each paths of LEDs lamp string realize the color temperature adjustment of a variety of gears；In addition, saving the MCU of the operating current ratio for controlling each paths of LEDs lamp string and being dedicated for the route of MCU power supply, keeps colour temperature light adjusting circuit simpler, reduce the device that circuit uses, reduced costs while reducing and driving spatial volume.
Description
Technical field
The utility model belong to LED drive circuit technical field more particularly to a kind of switch selection colour temperature light adjusting circuit and
LED lamp.
Background technique
Currently, by the three terminal bidirectional alternating-current switch dimming arrangement and MCU (Microcontroller of isolating switch power
Unit, micro-control unit), power supply line composition toning module realize light modulation and four kinds or more colour temperatures but change function, still, adopt
With isolation scheme, the device of driving is more and specification is big, causes the driving space occupied big, is unfavorable for driving miniaturization and low
Cost limits the application range of the program.
Therefore, the device of the driving of colour temperature light adjusting circuit present in traditional technical solution makes occupied space greatly can not more
Realize driving miniaturization and cost effective problem.
Utility model content
The utility model provides a kind of switch selection colour temperature light adjusting circuit, it is intended to solve the colour temperature in traditional technical solution
Light adjusting circuit has that driving element makes occupied space big more and cannot achieve driving miniaturization and cost effective.
The utility model is realized in this way a kind of switch selects colour temperature light adjusting circuit, connected by light modulator with power supply,
For carrying out colour temperature light modulation to LED multi-path lamp string, the switch selection colour temperature light adjusting circuit includes:
It is connect with light modulator, the light-adjusting module for being detected to the output electric current after the power rectifier；
For switching the switch module of different-colour gear；And
It is connect with LED light string described in multichannel, the light-adjusting module and the switch module, for according to the output electricity
Stream and the colour temperature gear are adjusted the operating current ratio of LED light string described in each road to control LED light colour contamination described in multichannel
The toning module of temperature variation.
The toning module includes: to connect with the output end of the light-adjusting module in one of the embodiments, for pair
The output electric current carries out the current limiting unit of current limliting processing；With the input of the output end and the switch module of the current limiting unit
End connection, for pressure stabilizing and filtering processing with the voltage regulation filtering unit of outputting reference voltage；With the output end of the switch module
Connection, for exporting the voltage sampling unit of sampled voltage；It is connect with the voltage sampling unit, is used for the LED described in each road
The current ratio fine-adjusting unit that the operating current ratio of lamp string is finely adjusted；With LED light string described in multichannel, the voltage regulation filtering list
First, the described voltage sampling unit and the connection of current ratio fine-adjusting unit, for receiving the reference voltage, the sampled voltage
And the operating current of LED light string described in the fine tuning road Hou Ge carries out the colour temperature of the color temperature change of LED light string described in control multichannel
Adjust chip.
In one of the embodiments, the color temperature adjustment chip include power pins, pin, voltage sense pin,
First output current ratio adjustment pin, the second output current ratio adjustment pin, the first output control pin, the second output control
Pin processed and spare pin；Wherein, the color temperature adjustment chip further include: connect with the power pins, for power supply
Chip power unit；Pin is adjusted with the chip power unit, the voltage sense pin, the first output current ratio
And the second output current ratio adjustment pin connection, for the reference voltage and the detection voltage to be compared
Compared with, and output first voltage control signal and second voltage are carried out according to the two-way output electric current after comparison result and the fine tuning
Control the control logic unit of signal；The first output end and first output for being connected to the control logic unit are controlled
Between pin processed, for according to the first voltage control signal control multichannel described in LED light string warm white LED illuminating state
First switch control unit；Be connected to the control logic unit second output terminal and it is described second output control pin it
Between, for controlling the second switch that signal controls the cool white LED illuminating state of LED light string described in multichannel according to the second voltage
Control unit.
The first switch control unit includes first switch tube in one of the embodiments, the first switch tube
Control terminal connect with the first output end of the control logic unit, the hot end of the first switch tube with described draws
Foot connection, the cold end of the first switch tube are connect with the first output control pin.
The second switch control unit includes second switch in one of the embodiments, the second switch
Control terminal connect with the second output terminal of the control logic unit, the hot end of the second switch with described draws
Foot connection, the cold end of the second switch are connect with the second output control pin.
The switch module includes the toggle switch combined by multiple toggle switches in one of the embodiments,.
In one of the embodiments, the voltage sampling unit include: first resistor, second resistance, 3rd resistor with
And the 4th resistance；The first end of the first resistor is connect with the second output pin of the toggle switch, the second resistance
First end connect with the third output pin of the toggle switch, the second end of the first resistor, the second resistance
The first end of second end, the 4th output pin of the toggle switch and the 4th resistance with the 3rd resistor
One end connection, the second end of the 3rd resistor are connect with the voltage sense pin of the color temperature adjustment chip, the 4th electricity
The second end of resistance is connect with the current ratio fine-adjusting unit.
In one of the embodiments, the current ratio fine-adjusting unit include: be connected to the voltage sampling unit and
Between the first output current ratio adjustment pin, for finely tuning the 5th resistance of first via output electric current；Be connected to institute
It states between voltage sampling unit and the second output current ratio adjustment pin, for finely tuning the 6th of the second tunnel output electric current the
Resistance.
In one of the embodiments, the brightness gear of the warm white LED of LED light string described in multichannel include 100% brightness extremely
Multiple in 0% brightness section, the brightness gear of cool white LED corresponding with the warm white LED includes 0% brightness to 100%
It is multiple in brightness section.
In addition, additionally providing a kind of LED lamp, colour temperature light adjusting circuit is selected including above-mentioned switch.
Above-mentioned switch selects colour temperature light adjusting circuit, by the light-adjusting module for adding toning module and Unisolated switch power supply
It is combined, and integrates multiple color temperatures in toning inside modules and adjust output control logic, make different output control logics pair
A kind of colour temperature gear is answered, the work of the warm white LED light and cool white LED light in LED multi-path lamp string is selected by external switch module
Current ratio can make multi-way LED lamp string realize the color temperature adjustment of a variety of gears；In addition, saving for controlling LED multi-path lamp string
In warm white LED light and cool white LED light operating current ratio MCU and be dedicated for MCU power supply route, make colour temperature light modulation electricity
Road is simpler, reduces the device that circuit uses, and reduces costs while reducing and driving spatial volume.
Detailed description of the invention
Fig. 1 is the module diagram for the switch selection colour temperature light adjusting circuit that an embodiment of the present invention provides；
Fig. 2 is the module diagram for the toning module that an embodiment of the present invention provides；
Fig. 3 is the module diagram for the color temperature adjustment chip that an embodiment of the present invention provides；
Fig. 4 is the module diagram for the color temperature adjustment chip that another embodiment of the utility model provides；
Fig. 5 is the circuit diagram for the switch selection colour temperature light adjusting circuit that an embodiment of the present invention provides.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Fig. 1 shows the module diagram of the switch selection colour temperature light adjusting circuit of the utility model preferred embodiment offer,
For ease of description, only the parts related to this embodiment are shown, and details are as follows:
With reference to Fig. 1, a kind of switch selection colour temperature light adjusting circuit is connected by light modulator with power supply, for multi-way LED lamp
String carries out colour temperature light modulation, comprising: toning module 1, light-adjusting module 2 and switch module 3.
Wherein, light-adjusting module 2 is connect with light modulator, for detecting to the output electric current after power rectifier；Switching molding
Block 3 is for switching different-colour gear；Toning module 1 is connect with LED multi-path lamp string 4, light-adjusting module 2 and switch module 3, is used
According to output electric current and colour temperature gear be adjusted the operating current ratio of each paths of LEDs lamp string to control 4 color of LED multi-path lamp string
Temperature variation.In the present embodiment, the operating current ratio of each paths of LEDs lamp string refers to warm in LED multi-path lamp string 4 for controlling
The brightness change of white LEDs lamp and current ratio for controlling the cool white LED light brightness change in LED multi-path lamp string 4, and use
It is equal to the output electric current that light-adjusting module 2 exports in the sum of the electric current of control warm white LED light and the electric current of control cool white LED light.?
In the present embodiment, power supply refers to electric main, and the electric main of input is changed its virtual value by light modulator, and is adjusted to being connected to
The rectification output of the rectifier bridge of light device and light-adjusting module 2, exports after rectifier bridge rectifies to light-adjusting module 2.
Refer to Fig. 2 in one of the embodiments, toning module 1 includes: color temperature adjustment chip 10, current limiting unit 11, steady
Press filter unit 12, voltage sampling unit 13 and current ratio fine-adjusting unit 14.
Wherein, current limiting unit 11 is connect with the output end of light-adjusting module 2, for carrying out current limliting processing to output electric current；Surely
Pressure filter unit 12 connect with the input terminal of the output end of current limiting unit 11 and switch module 3, for pressure stabilizing be filtered with
Outputting reference voltage；Voltage sampling unit 13 is connect with the output end of switch module 3, for exporting sampled voltage；Current ratio
Fine-adjusting unit 14 is connect with voltage sampling unit 13, is finely adjusted for the operating current ratio to each paths of LEDs lamp string；Colour temperature tune
It saves chip 10 and LED multi-path lamp string 4, voltage regulation filtering unit 12, voltage sampling unit 13 and current ratio fine-adjusting unit 14 connects
It connects, carries out control LED multi-path for receiving the operating current of each paths of LEDs lamp string after reference voltage, sampled voltage and fine tuning
The color temperature change of lamp string 4.
As above-mentioned, it is combined by adding toning module 1 and the light-adjusting module 2 of Unisolated switch power supply, and adjusting
Color module 1 is internally integrated multiple color temperatures and adjusts output control logic, and different output control logics is made to correspond to a kind of colour temperature gear, leads to
The operating current ratio for crossing warm white LED light and cool white LED light that external switch module 3 selects in LED multi-path lamp string 4, can make
LED multi-path lamp string 4 realizes the color temperature adjustment of a variety of gears.
In one of the embodiments, refer to Fig. 3, color temperature adjustment chip 10 include power pins VCC, pin GND, electricity
Pressure detection pin Vth, the first output current ratio adjustment pin Duty1, the second output current ratio adjustment pin Duty2, the
One output control pin Drain1, the second output control pin Drain2 and spare pin NC.
Color temperature adjustment chip 10 further include: chip power unit 101, control logic unit 102, first switch control unit
103 and second switch control unit 104；Specifically, chip power unit 101 is connect with power pins VCC, for colour temperature
Chip 10 is adjusted to power；Control logic unit 102 and chip power unit, voltage sense pin Vth, the first output current ratio
Adjust pin Duty1 and second output current ratio adjust pin Duty2 connection, for by reference voltage and detect voltage into
Row compares, and carries out output first voltage control signal and second voltage according to the two-way output electric current after comparison result and fine tuning
Control signal；First switch control unit 103 is connected to the first output end of control logic unit 102 and the first output control is drawn
Between foot Drain1, for controlling the warm white LED illuminating state of signal control LED multi-path lamp string 4 according to first voltage；Second opens
It closes control unit 104 to be connected between the second output terminal of control logic unit 102 and the second output control pin Drain2, use
In the cool white LED illuminating state for controlling signal control LED multi-path lamp string 4 according to second voltage.In other examples, colour temperature
Switch control unit quantity can be increased and increase pin number by adjusting inside chip 10, so as to independent control LED multi-path simultaneously
The color temperature change of lamp string 4.In the particular embodiment, LED multi-path lamp string 4 can be two-way, be all the way warm white LED light, another
Road is cool white LED light.
Fig. 4 is referred in one of the embodiments, and first switch control unit 103 includes first switch tube Q1, and first opens
The control terminal for closing pipe Q1 is connect with the first output end of control logic unit, the hot end and ground pin of first switch tube Q1
GND connection, the cold end of first switch tube Q1 are connect with the first output control pin Drain1.In the particular embodiment,
First switch tube Q1 can be transistor, triode or thyristor.
Fig. 4 is referred in one of the embodiments, and second switch control unit 104 includes second switch Q2, and second opens
The control terminal for closing pipe Q2 is connect with the second output terminal of control logic unit, the hot end and ground pin of second switch Q2
GND connection, the cold end of second switch Q2 are connect with the second output control pin Drain2.In the particular embodiment,
Second switch Q2 can be transistor, triode or thyristor.
Switch module 3 includes the toggle switch combined by multiple toggle switches in one of the embodiments,.Specific
In embodiment, with reference to Fig. 5, toggle switch SW-DIP4 can be composed of 4 toggle switches.
In one of the embodiments, refer to Fig. 5, voltage sampling unit 13 include: first resistor R1, second resistance R2,
3rd resistor R3 and the 4th resistance R4；The first end of first resistor R1 and the second output pin of toggle switch connect, and second
The third output pin of the first end of resistance R2 and toggle switch connects, and the of the second end of first resistor R1, second resistance R2
The first end at two ends, the 4th output pin of toggle switch and the 4th resistance R4 is connect with the first end of 3rd resistor R3,
The second end of 3rd resistor R3 is connect with the voltage sense pin Vth of color temperature adjustment chip 10, the second end of the 4th resistance R4 with
Current ratio fine-adjusting unit 14 connects.In the present embodiment, the first output pin of toggle switch SW-DIP4 is hanging, and dial-up is opened
The 4th output pin for closing SW-DIP4 is shorted, and the second output pin of toggle switch SW-DIP4 is connect with first resistor R1, is dialled
The third output pin of code switch SW-DIP4 is connect with second resistance R2, carries out two using first resistor R1 and second resistance R2
Road exports the adjustment of current ratio, since the resistance value of first resistor R1 and second resistance R2 is different, not by toggle switch switching
Same gear can make the voltage sense pin Vth of color temperature adjustment chip 10 detect four kinds of different voltages, pass through color temperature adjustment chip
102 logic judgment of control logic unit inside 10, and pass through first switch control unit 103 and second switch control unit
104 controllable multi-route LED light strings 4 adjust four kinds of different-colour gears, such as: the difference by selecting toggle switch SW-DIP4
Gear, be adjusted LED multi-path lamp string 4 warm white LED brightness gear include 100% brightness, 70% brightness, 30% brightness and
0% brightness, and cool white LED corresponding with warm white LED brightness gear include 0% brightness, 30% brightness, 70% brightness and
100% brightness, by adjusting the brightness of warm white LED simultaneously and the brightness of cool white LED achievees the purpose that color temperature adjustment.In others
In embodiment, the work electricity of the warm white LED light and cool white LED light in LED multi-path lamp string 4 is selected by toggle switch SW-DIP4
Stream ratio is, it can be achieved that the brightness gear of the warm white LED in LED multi-path lamp string includes more in 100% brightness to 0% brightness section
A, the brightness gear of corresponding cool white LED includes multiple in 0% brightness to 100% brightness section.
Fig. 5 is referred in one of the embodiments, and current ratio fine-adjusting unit 14 includes the 5th resistance R5 and the 6th resistance
R6, the 5th resistance R5 are connected between voltage sampling unit 13 and the first output current ratio adjustment pin Duty1, for finely tuning
The first via exports electric current；6th resistance R6 is connected to voltage sampling unit 13 and the second output current ratio adjustment pin Duty2
Between, electric current is exported for finely tuning the second tunnel.It in the present embodiment, can be to multichannel by the 5th resistance R5 and the 6th resistance R6
The operating current ratio of warm white LED light and cool white LED light in LED light string 4 is finely adjusted, to more accurately adjust multichannel
The colour temperature of LED light string, to meet actual demand.
Fig. 5 is referred in one of the embodiments, and voltage regulation filtering unit 12 includes first diode D1 and first capacitor
The anode of C1, first diode D1 are connect with the first end of first capacitor C1, the cathode and first capacitor C1 of first diode D1
Second end connect the output end as voltage regulation filtering unit 12 altogether and connect with the input terminal of switch module 3.
In one of the embodiments, refer to Fig. 5, current limiting unit 11 include the 7th resistance R7, the first of the 7th resistance R7
End and second end are respectively the input terminal and output end of current limiting unit 11.In the present embodiment, the 7th resistance R7 can be with multiple electricity
Resistance device is in series or in parallel to form.
Its working principle is illustrated so that switch shown in Fig. 2 selects colour temperature light adjusting circuit as an example below, details are as follows:
After LED multi-path lamp string 4 powers on, light-adjusting module 2 to the output electric current after power rectifier carry out detection and it is defeated
Out, output electric current is divided into two to it after module 1 of mixing colours, i.e., output electric current is divided into two-way and carries out electric current output,
With control respectively the warm white LED light in LED multi-path lamp string 4 brightness change and cool white LED light corresponding with warm white LED light it is bright
Degree variation, and then control the colour temperature of LED multi-path lamp string.
The ratio that can choose the operating current of LED multi-path lamp string by switch module 3, can by color temperature adjustment chip 10
The brightness change of the warm white LED light in LED multi-path lamp string 4 and the brightness change of cool white LED light corresponding with warm white LED are controlled,
For example, being warmed up at this time when by selecting the operating current ratio of warm white LED light and cool white LED light in LED multi-path lamp string 4 as 2:3
The brightness gear of white LEDs is 40% brightness, and the brightness gear of cool white LED is 60% brightness, to form a kind of colour temperature type；Again
Such as: when by selecting the operating current ratio of warm white LED light and cool white LED light in LED multi-path lamp string 4 as 3:2, warm white at this time
The brightness gear of LED light is 60% brightness, and the brightness gear of cool white LED light is 40%, and formation is again a kind of colour temperature type, because
This, selects the operating current ratio of warm white LED light and cool white LED light in LED multi-path lamp string 4 that can control by switch module 3
The color temperature adjustment of LED multi-path lamp string 4 processed.
In addition, additionally providing a kind of LED lamp, colour temperature light adjusting circuit is selected including above-mentioned switch.
The utility model has the beneficial effects that
1, it is combined by adding toning module and the light-adjusting module of Unisolated switch power supply, and in toning module
Portion integrates multiple color temperatures and adjusts output control logic, so that different output control logics is corresponded to a kind of colour temperature gear, is opened by outside
The operating current ratio for closing the warm white LED light and cool white LED light in module selection LED multi-path lamp string 4, can make multi-way LED lamp
String realizes the color temperature adjustment of a variety of gears.
It 2, can be to the warm white LED light and cool white LED light in LED multi-path lamp string 4 by setting current ratio fine-adjusting unit
Operating current ratio is finely adjusted, to adjust the colour temperature of LED multi-path lamp string, accurately more to meet actual demand.
3, save the MCU for controlling two-way output current ratio and be dedicated for the route of MCU power supply, make colour temperature light modulation electricity
Road is simpler, reduces the device that circuit uses, and reduces costs while reducing and driving spatial volume.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of switch selects colour temperature light adjusting circuit, connected by light modulator with power supply, for carrying out colour temperature to LED multi-path lamp string
Light modulation, which is characterized in that the switch selects the colour temperature light adjusting circuit to include:
It is connect with light modulator, the light-adjusting module for being detected to the output electric current after the power rectifier；
For switching the switch module of different-colour gear；And
Connect with LED light string described in multichannel, the light-adjusting module and the switch module, for according to the output electric current with
The colour temperature gear is adjusted the operating current ratio of LED light string described in each road to control the change of LED light string colour temperature described in multichannel
The toning module of change.
2. switch selection colour temperature light adjusting circuit as described in claim 1, which is characterized in that the toning module includes:
It is connect with the output end of the light-adjusting module, for carrying out the current limiting unit of current limliting processing to the output electric current；
It is connect with the input terminal of the output end of the current limiting unit and the switch module, for pressure stabilizing and filtering processing to export
The voltage regulation filtering unit of reference voltage；
It is connect with the output end of the switch module, for exporting the voltage sampling unit of sampled voltage；
It is connect with the voltage sampling unit, the electric current that the operating current ratio for the LED light string described in each road is finely adjusted
Ratio fine-adjusting unit；And
Connect with LED light string described in multichannel, the voltage regulation filtering unit, the voltage sampling unit and current ratio fine-adjusting unit
It connects, for receiving the reference voltage, the sampled voltage and the operating current progress for finely tuning LED light string described in the road Hou Ge
Control the color temperature adjustment chip of the color temperature change of LED light string described in multichannel.
3. switch selection colour temperature light adjusting circuit as claimed in claim 2, which is characterized in that the color temperature adjustment chip includes electricity
Source pin, pin, voltage sense pin, first output current ratio adjustment pin, second output current ratio adjustment pin,
First output control pin, the second output control pin and spare pin；
Wherein, the color temperature adjustment chip further include:
It is connect with the power pins, the chip power unit for power supply；
With the chip power unit, the voltage sense pin, the first output current ratio adjustment pin and described
Second output current ratio adjustment pin connection, for the reference voltage and the sampled voltage to be compared, and according to
Two-way output electric current after comparison result and the fine tuning carries out output first voltage control signal and second voltage control signal
Control logic unit；
It is connected between the first output end of the control logic unit and the first output control pin, for according to
First voltage controls the first switch control unit of the warm white LED illuminating state of LED light string described in signal control multichannel；And
It is connected between the second output terminal of the control logic unit and the second output control pin, for according to
Second voltage controls the second switch control unit of the cool white LED illuminating state of LED light string described in signal control multichannel.
4. switch selection colour temperature light adjusting circuit as claimed in claim 3, which is characterized in that the first switch control unit packet
First switch tube is included, the control terminal of the first switch tube is connect with the first output end of the control logic unit, and described
The hot end of one switching tube is connect with described ground pin, and the cold end of the first switch tube and first output control
Pin connection.
5. switch selection colour temperature light adjusting circuit as claimed in claim 3, which is characterized in that the second switch control unit packet
Second switch is included, the control terminal of the second switch is connect with the second output terminal of the control logic unit, and described
The hot end of two switching tubes is connect with described ground pin, and the cold end of the second switch and second output control
Pin connection.
6. switch selection colour temperature light adjusting circuit as claimed in claim 5, which is characterized in that the switch module includes by multiple
The toggle switch of toggle switch combination.
7. switch selection colour temperature light adjusting circuit as claimed in claim 6, which is characterized in that the voltage sampling unit includes:
First resistor, second resistance, 3rd resistor and the 4th resistance；
The first end of the first resistor is connect with the second output pin of the toggle switch, the first end of the second resistance
It is connect with the third output pin of the toggle switch, the second end of the first resistor, the second end of the second resistance, institute
The first end of the 4th output pin and the 4th resistance of stating toggle switch is connect with the first end of the 3rd resistor,
The second end of the 3rd resistor is connect with the voltage sense pin of the color temperature adjustment chip, the second end of the 4th resistance
It is connect with the current ratio fine-adjusting unit.
8. switch selection colour temperature light adjusting circuit as claimed in claim 3, which is characterized in that the current ratio fine-adjusting unit packet
It includes:
It is connected between the voltage sampling unit and the first output current ratio adjustment pin, it is defeated for finely tuning the first via
5th resistance of electric current out；With
It is connected between the voltage sampling unit and the second output current ratio adjustment pin, it is defeated for finely tuning the second road
6th resistance of electric current out.
9. switch as claimed in any one of claims 1 to 8 selects colour temperature light adjusting circuit, which is characterized in that LED light described in multichannel
The brightness gear of the warm white LED of string include it is multiple in 100% brightness to 0% brightness section, it is corresponding with the warm white LED
The brightness gear of cool white LED includes multiple in 0% brightness to 100% brightness section.
10. a kind of LED lamp, which is characterized in that including the described in any item switch selection colour temperature light modulation electricity of claim 1 to 9
Road.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821178459.0U CN208707991U (en) | 2018-07-24 | 2018-07-24 | A kind of switch selection colour temperature light adjusting circuit and LED lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821178459.0U CN208707991U (en) | 2018-07-24 | 2018-07-24 | A kind of switch selection colour temperature light adjusting circuit and LED lamp |
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| CN208707991U true CN208707991U (en) | 2019-04-05 |
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| CN201821178459.0U Active CN208707991U (en) | 2018-07-24 | 2018-07-24 | A kind of switch selection colour temperature light adjusting circuit and LED lamp |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110087364A (en) * | 2019-05-21 | 2019-08-02 | 江苏宜美照明科技股份有限公司 | LED power circuit |
| CN110636670A (en) * | 2019-09-20 | 2019-12-31 | 开发晶照明（厦门）有限公司 | Light source device |
| CN111963944A (en) * | 2020-09-04 | 2020-11-20 | 无锡市益明光电有限公司 | A commercial downlight with adjustable color temperature and brightness |
| CN112261754A (en) * | 2020-09-25 | 2021-01-22 | 漳州立达信光电子科技有限公司 | Light control system |
| CN114980419A (en) * | 2021-02-23 | 2022-08-30 | 漳州立达信光电子科技有限公司 | Silicon controlled double-dimming driving circuit, dimming driving device and lamp |
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2018
- 2018-07-24 CN CN201821178459.0U patent/CN208707991U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110087364A (en) * | 2019-05-21 | 2019-08-02 | 江苏宜美照明科技股份有限公司 | LED power circuit |
| CN110087364B (en) * | 2019-05-21 | 2024-03-05 | 江苏宜美照明科技股份有限公司 | LED power supply circuit |
| CN110636670A (en) * | 2019-09-20 | 2019-12-31 | 开发晶照明（厦门）有限公司 | Light source device |
| CN110636670B (en) * | 2019-09-20 | 2022-07-19 | 开发晶照明（厦门）有限公司 | Light source device |
| CN111963944A (en) * | 2020-09-04 | 2020-11-20 | 无锡市益明光电有限公司 | A commercial downlight with adjustable color temperature and brightness |
| CN112261754A (en) * | 2020-09-25 | 2021-01-22 | 漳州立达信光电子科技有限公司 | Light control system |
| CN114980419A (en) * | 2021-02-23 | 2022-08-30 | 漳州立达信光电子科技有限公司 | Silicon controlled double-dimming driving circuit, dimming driving device and lamp |
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