CN206272899U - The LED matrix of two-way colour temperature is controlled using single channel pwm circuit - Google Patents
The LED matrix of two-way colour temperature is controlled using single channel pwm circuit Download PDFInfo
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- CN206272899U CN206272899U CN201621366039.6U CN201621366039U CN206272899U CN 206272899 U CN206272899 U CN 206272899U CN 201621366039 U CN201621366039 U CN 201621366039U CN 206272899 U CN206272899 U CN 206272899U
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- colour temperature
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Abstract
The disclosed LED matrix using single channel pwm circuit control two-way colour temperature of the utility model, including the PWM phase inverters for receiving the pwm signal that PWM signal generator sends, it is identical that single channel pwm signal is decomposed into frequency by PWM phase inverters, the first driver and the second driver are respectively fed to after the two-way pwm signal of opposite in phase, first driver and the second driver correspond to drive the first LED module and the second LED module respectively, by the colour temperature for adjusting the dutycycle of the two-way pwm signal that PWM phase inverters are decomposed so as to adjust first LED module and the second LED module, by mixed light and then reach predetermined colour temperature.The LED matrix of utilization single channel pwm circuit control two-way colour temperature of the present utility model solves the problems, such as that the LED module of existing two-way colour temperature needs to drive respectively and power consumption is double.The LED matrix single channel pwm signal of utilization single channel pwm circuit control two-way colour temperature of the present utility model is the LED driver of controllable two-way colour temperature, and during colour temperature regulation the general power of light fixture can be kept to be basically unchanged.
Description
Technical field
The utility model belongs to LED illumination product technical field, and in particular to one kind is using single channel pwm circuit control two-way
The LED matrix of colour temperature.
Background technology
At present, LED illumination is increasingly popularized.Compared to traditional incandescent lamp, fluorescent lamp, LED illumination have light efficiency it is high, section
The advantages of light modulation toning, can be easy to.
The LED module of adjustable color temperature on the market, is mostly to need 2 road PWM at present, 2 paths of LEDs modules is controlled respectively,
The effect of electrodeless color-temperature regulating can be realized.For the small control system of some resource scarcitys, PWM means many one all the way more
Burden, implementation process is also cumbersome, and discreteness is big.Simultaneously as 2 paths of LEDs modules are separately controlled, it is meant that LED lamp
Power supply general power is 2 times of single LED modular power, such as, when LED module is lighted all the way, brightness is normal, and 2 roads are simultaneously
When lighting, brightness is doubled, and so not only power increased, and neglects secretly suddenly bright sensation, and Consumer's Experience is also bad.
Utility model content
The purpose of this utility model is to provide the LED matrix that a kind of utilization single channel pwm circuit controls two-way colour temperature, is solved
The LED module of existing two-way colour temperature needs the problem for driving respectively and power consumption is double.
The technical scheme that the utility model is used is：The LED matrix of two-way colour temperature, bag are controlled using single channel pwm circuit
The PWM phase inverters for receiving the pwm signal that PWM signal generator sends are included, be decomposed into for single channel pwm signal by PWM phase inverters
Frequency is identical, be respectively fed to the first driver and the second driver, the first driver and after opposite in phase two-way pwm signal
Two drivers correspond to drive the first LED module and the second LED module respectively, and the two-way PWM decomposed by adjusting PWM phase inverters believes
Number dutycycle so as to adjust the colour temperature of the first LED module and the second LED module, by mixed light and then reach predetermined colour temperature.
The characteristics of the utility model, also resides in,
Also include drive power supply, drive power supply is used to be powered the first driver and the second driver.
PWM phase inverters are made up of two triodes and its peripheral circuit.
First driver and the second driver are the transistor with switching function.
First driver and the second driver are FET.
The beneficial effects of the utility model are：The LED dresses of utilization single channel pwm circuit control two-way colour temperature of the present utility model
Put and solve the problems, such as that the LED module of existing two-way colour temperature needs to drive respectively and power consumption is double.Profit of the present utility model
The LED driver that the LED matrix single channel pwm signal of two-way colour temperature is controllable two-way colour temperature is controlled with single channel pwm circuit, and
The general power of light fixture can be kept to be basically unchanged during colour temperature regulation.
Brief description of the drawings
Fig. 1 is the module diagram of the LED matrix of utilization single channel pwm circuit control two-way colour temperature of the present utility model；
Fig. 2 is the specific electricity of the embodiment of the LED matrix of utilization single channel pwm circuit control two-way colour temperature of the present utility model
Lu Tu.
In figure, 1.PWM phase inverters, 2. the first driver, 3. the second driver, 4. the first LED module, 5. the 2nd LED moulds
Block.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
The utility model provide utilization single channel pwm circuit control two-way colour temperature LED matrix structure as shown in figure 1,
Including the PWM phase inverters 1 for receiving the pwm signal that PWM signal generator sends, PWM phase inverters 1 divide single channel pwm signal
Solve as frequency is identical, be respectively fed to the first driver 2 and the second driver 3 after opposite in phase two-way pwm signal, first drives
The driver 3 of device 2 and second corresponds to drive the first LED module 4 and the second LED module 5 respectively, is decomposed by adjusting PWM phase inverters 1
Two-way pwm signal dutycycle so as to adjust the colour temperature of the first LED module 4 and the second LED module 5, due to two-way pwm signal
Frequency is identical, opposite in phase, and by after two drivers, if the first LED module 4 is highlighted, the second LED module 5 is low bright；Instead
It is as the same.When two paths of LED module colour temperature is different, by mixed light, new colour temperature is just generated.Due to two-way PWM signal frequency
Identical, opposite in phase, is added to the complimentary of two paths of LED module, final to keep general power to be basically unchanged.
Also include drive power supply, drive power supply is used to be powered the first driver 2 and the second driver 3.
PWM phase inverters 1 are made up of two triodes and its peripheral circuit.
First driver 2 and the second driver 3 are the transistor with switching function.
First driver 2 and the second driver 3 are FET.
The LED matrix of two-way colour temperature is controlled utilization single channel pwm circuit of the present utility model below by specific embodiment
Be specifically described, its circuit structure as shown in Fig. 2 pwm signal comes from master controller, by as the three of PWM phase inverters 1
After pole pipe Q1, Q3 and peripheral circuit, 2 road pwm signals are decomposited；This two-way pwm signal, respectively through as the first driver 2
With FET Q2, Q4 of the second driver 3, two LEDM1 and LEDM2 of LED module, and the first driver 2, second are driven
Driver 3 is connected between corresponding LED module negative pole and ground wire respectively, LEDM1 the and LEDM2 positive poles of two LED modules connect electricity
Source VLED, negative pole connects the drain electrode for meeting Q2, Q4 respectively.Also include that drive power supply a VDR, VDR can be according to two drivers
Normal switch voltage is chosen.Example, the LEDM1 and LEDM2 of the present embodiment are lamp panel of LED daylight lamp, LED daylight herein
Lamp lamp plate could alternatively be the LED lamp panel of other any shapes.Because the frequency of this two-way pwm signal is identical, opposite in phase, plus
It is final to keep general power to be basically unchanged to two complimentaries of the LEDM1 and LEDM2 of LED module.
Through the above way, utilization single channel pwm circuit of the present utility model controls the LED matrix of two-way colour temperature, and its PWM is anti-
Phase device can be connected to after any type of PWM signal generator, and the pwm signal all the way that PWM signal generator is produced is decomposed into
Frequency is identical, opposite in phase two-way pwm signal, for driving two-way pwm driver and at least 2 paths of LEDs modules.When LED moulds
When the colour temperature of block is different, the dutycycle of pwm signal need to be only adjusted, you can produce the effect of regulation light fixture colour temperature, its low cost can
High by property, efficiently solving 2 traditional tunnel colour temperatures needs the cumbersome and discreteness of 2 road pwm signal controls, and in regulation color
The general power of light fixture can be kept to be basically unchanged during temperature.
Claims (5)
1. the LED matrix of two-way colour temperature is controlled using single channel pwm circuit, it is characterised in that including occurring for receiving pwm signal
Single channel pwm signal is decomposed into the PWM phase inverters (1) of the pwm signal that device sends, the PWM phase inverters (1) frequency is identical, phase
Be respectively fed to the first driver (2) and the second driver (3) after the opposite two-way pwm signal in position, first driver (2) and
Second driver (3) corresponds to drive the first LED module (4) and the second LED module (5) respectively, by adjusting PWM phase inverters (1)
The dutycycle of the two-way pwm signal of decomposition so as to adjust the colour temperature of first LED module (4) and the second LED module (5), warp
Cross mixed light and then reach predetermined colour temperature.
2. the LED matrix of two-way colour temperature is controlled using single channel pwm circuit as claimed in claim 1, it is characterised in that also included
Drive power supply, the drive power supply is used to be powered first driver (2) and the second driver (3).
3. the LED matrix of two-way colour temperature is controlled using single channel pwm circuit as claimed in claim 1, it is characterised in that described
PWM phase inverters (1) are made up of two triodes and its peripheral circuit.
4. the as claimed in claim 1 LED matrix for controlling two-way colour temperature using single channel pwm circuit, it is characterised in that described the
One driver (2) and the second driver (3) are the transistor with switching function.
5. the utilization single channel pwm circuit as described in claim 1 or 4 controls the LED matrix of two-way colour temperature, it is characterised in that institute
State the first driver (2) and the second driver (3) is FET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621366039.6U CN206272899U (en) | 2016-12-13 | 2016-12-13 | The LED matrix of two-way colour temperature is controlled using single channel pwm circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621366039.6U CN206272899U (en) | 2016-12-13 | 2016-12-13 | The LED matrix of two-way colour temperature is controlled using single channel pwm circuit |
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| Publication Number | Publication Date |
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| CN206272899U true CN206272899U (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621366039.6U Active CN206272899U (en) | 2016-12-13 | 2016-12-13 | The LED matrix of two-way colour temperature is controlled using single channel pwm circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107484290A (en) * | 2017-06-26 | 2017-12-15 | 厦门阳光恩耐照明有限公司 | A kind of LED toning circuits of single channel pwm signal |
| CN109104789A (en) * | 2018-08-23 | 2018-12-28 | 广东洲明节能科技有限公司 | Control method, device, computer equipment and the storage medium of LED street lamp |
-
2016
- 2016-12-13 CN CN201621366039.6U patent/CN206272899U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107484290A (en) * | 2017-06-26 | 2017-12-15 | 厦门阳光恩耐照明有限公司 | A kind of LED toning circuits of single channel pwm signal |
| CN109104789A (en) * | 2018-08-23 | 2018-12-28 | 广东洲明节能科技有限公司 | Control method, device, computer equipment and the storage medium of LED street lamp |
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