CN208424863U - A kind of LED light having color temperature adjustment function - Google Patents

A kind of LED light having color temperature adjustment function Download PDF

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Publication number
CN208424863U
CN208424863U CN201821247254.3U CN201821247254U CN208424863U CN 208424863 U CN208424863 U CN 208424863U CN 201821247254 U CN201821247254 U CN 201821247254U CN 208424863 U CN208424863 U CN 208424863U
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led light
color temperature
switch
led
temperature adjustment
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CN201821247254.3U
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Chinese (zh)
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唐柏荣
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SHENZHEN FEIYETAI ELECTRONICS Co Ltd
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SHENZHEN FEIYETAI ELECTRONICS Co Ltd
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Abstract

The utility model discloses a kind of LED light for having color temperature adjustment function, it include that the LED load that the different LED light string of light color temperature forms and the driving circuit for driving the LED load are gone out by multichannel, the driving circuit includes: multiple switch pipe, for controlling the on-off of the LED multi-path lamp string;The input terminal of multiple signals switch, the multiple signals switch is all connected with DC power supply;One microcontroller, the microcontroller is connect with the output end that the multiple signals switch, control signal is exported according to the on-off of each signaling switch to drive the on-off of the corresponding switching tube, realizes color temperature adjustment to control out the light on and off of the different LED light string of light color temperature.The utility model is provided with multichannel and goes out the different LED light string of light color temperature and multiple signals switch, can export multiple color temperatures light with single led lamp, not need to reinstall LED light, low in cost;When carrying out color temperature adjustment, only realized by the on/off of signaling switch, it is simple, convenient.

Description

A kind of LED light having color temperature adjustment function
Technical field
The utility model relates to technical fields of lighting fixtures, and in particular to a kind of LED light for having color temperature adjustment function.
Background technique
The advantages that LED light has a high photosynthetic efficiency as a kind of novel illuminations, the long-life, environmentally friendly, is widely used in each The fields such as kind of illumination, light, decoration, such as the decoration and indoor light primary colours etc. of the decoration on Christmas, outdoor billboard.Usually LED light be all it is serial/parallel a sequence of by multiple monochromatic LED lamps, after LED light string powers on, issue monochromatic light.Colour temperature is For human eye to the feeling of illuminator or white reflection body, this is one kind of physics, physiology and psychologic comprehensive complicated factor Feel, and vary with each individual.Light source color temperature is different, photochromic also different.Colour temperature has steady atmosphere in 3300K or less, warm Feeling;Colour temperature is intermediate colour temperature in 3000--5000K, there is frank feeling;Colour temperature has cold feeling in 5000K or more.No With the photochromic composition suitable environment of difference of light source.But after current LED light installs, a kind of monochromatic light can only be issued, if The color for thinking change light, must just replace the LED lamp bead of different colours.And thus to user with for it is following inconvenience (1) make User must buy the LED light string of multiple color, and it is relatively more to expend money;(2) if to change the colour temperature effect of light, it is necessary to LED light string is replaced, user must reinstall LED light, make troubles to user.(3) in commodity circulation Between for quotient, because of the selectivity of user, the warehousing pressure of commodity can be caused to him.
Summary of the invention
It, can be with the technical problem to be solved by the utility model is to provide a kind of LED light for having color temperature adjustment function It is at low cost and easy to operate with the light of single led lamp output multiple color temperatures.
In order to solve the above technical problems, the utility model uses technical solution as described below:
A kind of LED light having color temperature adjustment function includes to go out the different LED light string of light color temperature by multichannel to form LED load and driving circuit for driving the LED load, the driving circuit includes:
Multiple switch pipe, for controlling the on-off of the LED multi-path lamp string;
The input terminal of multiple signals switch, the multiple signals switch is all connected with DC power supply;
One microcontroller, the microcontroller are connect with the output end that the multiple signals switch, according to each letter Output control signal number is switched on-off to drive the on-off of the corresponding switching tube, to control out the different LED of light color temperature Color temperature adjustment is realized in the light on and off of lamp string.
Preferably, the switching tube is NMOS tube, and the grid of the NMOS tube connects the output end of the microcontroller, is leaked Pole connects the output negative pole of the LED light string, source electrode ground connection.
Preferably, a driving resistance is connected between the grid of the NMOS tube and the output end of the microcontroller.
Preferably, a bleeder resistance is connected between the grid and source electrode of the NMOS tube.
Preferably, the driving circuit further includes having a first capacitor and one second capacitor, the first capacitor and second Capacitor input terminal is connect with the DC power supply, the first capacitor and one second capacitor output end ground connection.
Preferably, the first capacitor is electrolytic capacitor.
Preferably, the LED load includes the first LED light string and the second LED light string, and the multiple switching tube includes first The second switch of switching tube, the first switch tube control the on-off of first LED light string, the second switch control The on-off of second LED light string, the multiple signals switch include that the first signaling switch and second signal switch, and described first The input terminal of signaling switch and second signal switch is all connected with DC power supply, what first signaling switch and second signal switched Output end is connect with the microcontroller.
Preferably, first LED light string includes 3 the first LED lamp beads being sequentially connected in series, first LED lamp bead For the warm colour lamp bead of 3000K colour temperature, second LED light string includes 3 the second LED lamp beads being sequentially connected in series, and described second LED lamp bead is the cool colour lamp bead of 5700K colour temperature.
Preferably, the microcontroller is a MCU.
Preferably, the DC power supply is 5V DC power supply.
The advantageous effects of the utility model are: the above-mentioned LED light for having color temperature adjustment function is provided with multichannel and goes out The different LED light string of light color temperature and multiple signals switch, microcontroller are exported according to the on-off of each road signaling switch and are controlled Signal is cut with driving the on-off of corresponding switching tube with controlling the light on and off that the multichannel goes out between the different LED light string of light color temperature It changes, realizes with the technical effect of single led lamp output multiple color temperatures light, do not need to reinstall LED light, it is low in cost; Since single a LED light of the utility model can export multiple color temperatures light, the different-colour demand of client, lamp can satisfy Tool sale agent no longer needs the various types of LED light of inventory, and only the LED light of inventory's the utility model just meets all visitors The demand for commodity at family reduces inventory and reduces costs pressure;Moreover, user only passes through signal when carrying out color temperature adjustment It switches on/turns off to realize, it is simple, convenient.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model.
Specific embodiment
To make those skilled in the art that the purpose of this utility model, technical solution and excellent be more clearly understood Point is further elaborated the utility model below in conjunction with drawings and examples.
As shown in Figure 1, the LED light for having color temperature adjustment function includes LED negative in one embodiment of the utility model Carry 10 and the driving circuit 20 for driving the LED load 10.Wherein, the LED load 10 includes the first LED light string 11 With the second LED light string 12.First LED light string 11 include be sequentially connected in series 3 the first LED lamp beads (LED1, LED2, LED3), first LED lamp bead (LED1, LED2, LED3) is the warm colour lamp bead of 3000K colour temperature, lights first LED light String 11 issues the warm colour light that colour temperature is 3000K.Second LED light string 12 includes 3 the 2nd LED being sequentially connected in series Lamp bead (LED4, LED5, LED6), second LED lamp bead (LED4, LED5, LED6) are the cool colour lamp bead of 5700K colour temperature, point Bright second LED light string 12 issues the cool colour light that colour temperature is 5700K.
The driving circuit 20 includes that microcontroller U1, switching tube Q1, switching tube Q2, signaling switch SW1 and signal are opened Close SW2.Wherein, the microcontroller U1 is a MCU, and 5V DC power supply VDD connects the power end (1 foot) of the microcontroller U1 For microcontroller U1 power supply.The input terminal of the signaling switch SW1 and signaling switch SW2 is all connected with 5V DC power supply VDD, The output end of the signaling switch SW1 connects the first signal input part (the 6th foot) of the microcontroller U1, the signaling switch The output end of SW2 connects the second signal input terminal (the 5th foot) of the microcontroller U1.The switching tube Q1 is NMOS tube, Grid connects the first signal output end (the 2nd foot) of the microcontroller U1, source electrode ground connection, and drain electrode connects first LED light The output negative pole of string 11, for controlling the on-off of first LED light string 11.The switching tube Q2 is NMOS tube, and grid connects The second signal output end (the 3rd foot) of the microcontroller U1, source electrode ground connection are connect, drain electrode connects second LED light string 12 Output negative pole, for controlling the on-off of second LED light string 12.
The microcontroller U1 exports control signal according to the on-off of each road signaling switch to drive corresponding switch The on-off of pipe realizes color temperature adjustment to control out the light on and off of the different LED light string of light color temperature.Specific work process is as follows:
When signaling switch SW1 opens (i.e. connection 5V DC power supply VDD), signaling switch SW2 is closed, microcontroller U1's 2nd foot exports the high level of 5V, and the 3rd foot exports low level, so that switching tube Q1 is connected, switching tube Q2 is closed, at this time the first LED Lamp string 11 is lighted, and the second LED light string 12 is extinguished.
When signaling switch SW2 opens (i.e. connection 5V DC power supply VDD), signaling switch SW1 is closed, microcontroller U1's 3rd foot exports the high level of 5V, and the 2nd foot exports low level, so that switching tube Q2 is connected, switching tube Q1 is closed, at this time the 2nd LED Lamp string 12 is lighted, and the first LED light string 11 is extinguished.
When signaling switch SW1 is opened with signaling switch SW2 and (is connected 5V DC power supply VDD), the 2nd of microcontroller U1 the The pwm signal that foot and the 3rd foot output 5V duty ratio are 50%, so that switching tube Q1 and switching tube Q2 are connected, the first LED at this time Lamp string 11 and the second LED light string 12 are lighted simultaneously, and brightness is identical.
The above-mentioned LED light for having color temperature adjustment function is provided with two-way and goes out the different LED light string of light color temperature and two paths of signals Switch, microcontroller export the on-off for controlling signal to drive corresponding switching tube according to the on-off of each road signaling switch, To control the light on and off switching that two-way goes out the different LED light string of light color temperature, realize with single led lamp output multiple color temperatures light effect The technical effect of fruit, it is low in cost;Since single a LED light of the utility model can export multiple color temperatures light, Ke Yiman The different-colour demand of sufficient client, lamps and lanterns sale agent no longer need the various types of LED light of inventory, and only reserved copy is practical new The LED light of type just meets the demand for commodity of all clients, reduces inventory and reduces costs pressure;Moreover, user into When row color temperature adjustment, only realized by the on/off of signaling switch, it is simple, convenient.
Preferably, connect between the grid of the switching tube Q1 and the first signal output end (2 foot) of the microcontroller U1 It is connected to a driving resistance R1, a bleeder resistance R2 is connected between the grid and source electrode of the switching tube Q1.The switching tube Q2 Grid and the microcontroller U1 second signal output end (3 foot) between be connected with a driving resistance R3, the switching tube A bleeder resistance R4 is connected between the grid and source electrode of Q2.
Preferably, the driving circuit 20 further includes having a first capacitor C1 and one second capacitor C2, to 5V direct current Source VDD is filtered.Wherein, the first capacitor C1 is electrolytic capacitor, and anode is connect with the 5V DC power supply VDD, is born Pole ground connection.Second capacitor is polarity free capacitor, and input terminal is connect with the 5V DC power supply VDD, output end ground connection.
It should be noted that the utility model is the output needs for meeting more colour temperature lighting effects, LED load includes more Road goes out the different LED light string of light color temperature, and correspondingly, driving circuit includes multiple switch pipe and multiple signals switch, each LED light String is corresponding with a switching tube and a signaling switch, and the signaling switch is connect with microcontroller, and the microcontroller is according to institute The corresponding control signal of switching signal output of signaling switch is stated, the switching tube controls corresponding according to the control signal The on-off of LED light string all the way, to realize the color temperature adjustment of LED light.
The above is only the preferred embodiment of the present invention, rather than does limit in any form to the utility model System.Those skilled in the art can impose various equivalent changes and improvement on the basis of the above embodiments, all to want in right The equivalent variations or modification done in range are sought, should fall within the protection scope of this utility model.

Claims (10)

1. a kind of LED light for having color temperature adjustment function, which is characterized in that the LED light includes to go out light color temperature not by multichannel The LED load that same LED light string forms and the driving circuit for driving the LED load, the driving circuit includes:
Multiple switch pipe, for controlling the on-off of the LED multi-path lamp string;
The input terminal of multiple signals switch, the multiple signals switch is all connected with DC power supply;
One microcontroller, the microcontroller are connect with the output end that the multiple signals switch, and are opened according to each signal The on-off output of pass controls signal to drive the on-off of the corresponding switching tube, to control out the different LED light string of light color temperature Light on and off realize color temperature adjustment.
2. having the LED light of color temperature adjustment function as described in claim 1, it is characterised in that: the switching tube is NMOS tube, The grid of the NMOS tube connects the output end of the microcontroller, and drain electrode connects the output negative pole of the LED light string, and source electrode connects Ground.
3. having the LED light of color temperature adjustment function as claimed in claim 2, it is characterised in that: the grid of the NMOS tube with A driving resistance is connected between the output end of the microcontroller.
4. having the LED light of color temperature adjustment function as claimed in claim 3, it is characterised in that: the grid of the NMOS tube with A bleeder resistance is connected between source electrode.
5. having the LED light of color temperature adjustment function as described in claim 1, it is characterised in that: the driving circuit further includes There are a first capacitor and one second capacitor, the first capacitor and the second capacitor input terminal are connect with the DC power supply, described First capacitor and one second capacitor output end ground connection.
6. having the LED light of color temperature adjustment function as claimed in claim 5, it is characterised in that: the first capacitor is electrolysis Capacitor.
7. having the LED light of color temperature adjustment function as described in claim 1, it is characterised in that: the LED load includes first LED light string and the second LED light string, the multiple switching tube include the second switch of first switch tube, the first switch tube The on-off of first LED light string is controlled, the second switch controls the on-off of second LED light string, the multichannel letter Number switch includes that the first signaling switch and second signal switch, and the input terminal of first signaling switch and second signal switch is equal DC power supply is connected, the output end that first signaling switch and second signal switch is connect with the microcontroller.
8. having the LED light of color temperature adjustment function as claimed in claim 7, it is characterised in that: first LED light string includes There are 3 the first LED lamp beads being sequentially connected in series, first LED lamp bead is the warm colour lamp bead of 3000K colour temperature, second LED light String includes 3 the second LED lamp beads being sequentially connected in series, and second LED lamp bead is the cool colour lamp bead of 5700K colour temperature.
9. such as the described in any item LED light for having color temperature adjustment function of claim 1-8, it is characterised in that: the microcontroller Device is a MCU.
10. having the LED light of color temperature adjustment function as claimed in claim 9, it is characterised in that: the DC power supply is that 5V is straight Galvanic electricity source.
CN201821247254.3U 2018-08-03 2018-08-03 A kind of LED light having color temperature adjustment function Active CN208424863U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821247254.3U CN208424863U (en) 2018-08-03 2018-08-03 A kind of LED light having color temperature adjustment function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821247254.3U CN208424863U (en) 2018-08-03 2018-08-03 A kind of LED light having color temperature adjustment function

Publications (1)

Publication Number Publication Date
CN208424863U true CN208424863U (en) 2019-01-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113498231A (en) * 2020-03-19 2021-10-12 朗德万斯有限责任公司 Light emitting device and lighting system including the same
WO2022198731A1 (en) * 2021-03-22 2022-09-29 宁波亚茂光电股份有限公司 Led control circuit and illumination system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113498231A (en) * 2020-03-19 2021-10-12 朗德万斯有限责任公司 Light emitting device and lighting system including the same
WO2022198731A1 (en) * 2021-03-22 2022-09-29 宁波亚茂光电股份有限公司 Led control circuit and illumination system

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