CN204291449U - A kind of LED light modulation color-temperature regulating toning colour TV road - Google Patents
A kind of LED light modulation color-temperature regulating toning colour TV road Download PDFInfo
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- CN204291449U CN204291449U CN201420671569.6U CN201420671569U CN204291449U CN 204291449 U CN204291449 U CN 204291449U CN 201420671569 U CN201420671569 U CN 201420671569U CN 204291449 U CN204291449 U CN 204291449U
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Abstract
The utility model discloses one and control flexible and lower-cost LED light modulation color-temperature regulating toning colour TV road.It comprises ac input end, circuit of reversed excitation, DC/DC constant flow module, white LED lamp group, control switch group, RGB lamp group, constant current chip group and control chip, described circuit of reversed excitation comprises two output voltage, be respectively output voltage V01 and output voltage V02, described ac input end connects circuit of reversed excitation, described output voltage V01 connects DC/DC constant flow module, described DC/DC constant flow module, white LED lamp group and the series connection of control switch group, described output voltage V02, RGB lamp group and the series connection of constant current chip group, described control switch group is all connected with control chip with constant current chip group.The beneficial effects of the utility model are: adopt RGB+W mode mixed light to control, LED white brightness and adjustable color can be realized, illumination performance effect meets standard-required, and realize rgb color and brightness is adjustable, have and control flexibly, meet LED illumination performance requirement, lower-cost advantage comprehensively.
Description
Technical field
The utility model relates to LED illumination correlative technology field, refers in particular to a kind of LED light modulation color-temperature regulating toning colour TV road.
Background technology
Smart Home drastically increases the quality of the life of people, becomes emerging technology important applied field.As the important component part of Smart Home, intelligent lighting proposes more requirements to LED lamp product.The brightness of LED lamp, colour temperature, color tunable are the basic functions of intelligent lighting, on the lamp foundation possessing these basic functions, can form intelligent network further, realize Based Intelligent Control.
Realize the brightness of LED, colour temperature and color tunable, the complexity of LED lamp system is higher, needs the LED particle possessing different wave length, and adopts software control, controls the particles work of different wave length respectively, and mixed light obtains required illuminating effect.Such as Chinese utility model patent CN 102056373 proposes the LED illumination remote control system of a kind of brightness-adjustable and colour temperature, single-chip microcomputer is adopted to export pwm pulse, each LED drive module pwm control signal, regulates electric current to export, obtains different brightness and color temperature value after disparate modules colour mixture.
On market, the remote control bulb lamp product of certain famous brand name company adopts Red, Blue, Green tri-groups of LED lamp bead, control duty ratio respectively, realize the light mixing effect preset, can realize the change of brightness, colour temperature and color, its drive circuit adopts circuit of reversed excitation+Buck DC/DC constant current output.But common RGB lamp pearly-lustre effect is very low, and want to realize higher brightness and reach higher aobvious finger, the difficulty of RGB lamp pearl mixed light is larger, and very high to LED lamp bead performance requirement, cost is higher.
Utility model content
The utility model there is above-mentioned deficiency to overcome in prior art, provides one and control flexible and lower-cost LED light modulation color-temperature regulating toning colour TV road.
To achieve these goals, the utility model is by the following technical solutions:
A kind of LED light modulation color-temperature regulating toning colour TV road, comprise ac input end, circuit of reversed excitation, DC/DC constant flow module, white LED lamp group, control switch group, RGB lamp group, constant current chip group and control chip, described circuit of reversed excitation comprises two output voltage, be respectively output voltage VO 1 and output voltage VO 2, described ac input end connects circuit of reversed excitation, described output voltage VO 1 connects DC/DC constant flow module, described DC/DC constant flow module, white LED lamp group and the series connection of control switch group, described output voltage VO 2, RGB lamp group and the series connection of constant current chip group, described control switch group is all connected with control chip with constant current chip group.
Control switch group and all controlled chip controls of constant current chip group, export different pwm signal, controls the work of different lamp group in white LED lamp group and RGB lamp group.In the utility model, by white LED lamp group and RGB lamp group with the use of, adopt RGB+W mode mixed light to control, can realize LED white brightness and adjustable color, illumination performance effect meets standard-required, and realizes rgb color and brightness is adjustable.It has control flexibly, meets LED illumination performance requirement, lower-cost advantage comprehensively.
As preferably, described white LED lamp group comprises cold white LEDs lamp group and warm white LEDs lamp group, described control switch group comprises control switch Q1 and control switch Q2, described cold white LEDs lamp group is connected with control switch Q1, described warm white LEDs lamp group is connected with control switch Q2, described cold white LEDs lamp group is in parallel with after warm white LEDs lamp group is connected with control switch Q2 after connecting with control switch Q1, and described control chip is connected with control switch Q1 and control switch Q2 respectively.After control chip receives the brightness and colour temperature command signal exporting white light, different control impuls width signal is exported to control switch Q1 and control switch Q2 and realizes.
As preferably, described cold white LEDs lamp group comprises some cold white LEDs lamps, described cold white LEDs lamp series connection, and described warm white LEDs lamp group comprises some warm white LEDs lamps, described warm white LEDs lamp series connection, the quantity of described cold white LEDs lamp is consistent with the quantity of warm white LEDs lamp.
As preferably, described RGB lamp group comprises red LED lamp, green LED lamp and blue led lamp, described constant current chip group comprises three constant current chips, be respectively constant current chip IC1, constant current chip IC2 and constant current chip IC3, described red LED lamp is connected with constant current chip IC1, described green LED lamp is connected with constant current chip IC2, described blue led lamp is connected with constant current chip IC3, after described red LED lamp is connected with constant current chip IC1, after green LED lamp is connected with constant current chip IC2, blue led lamp is parallel with one another after connecting with constant current chip IC3, described control chip respectively with constant current chip IC1, constant current chip IC2 is connected with constant current chip IC3.By the proportioning inputting different duty pulse width signal to constant current chip IC1, constant current chip IC2 and constant current chip IC3, various color can be realized.
The beneficial effects of the utility model are: adopt RGB+W mode mixed light to control, LED white brightness and adjustable color can be realized, illumination performance effect meets standard-required, and realize rgb color and brightness is adjustable, have and control flexibly, meet LED illumination performance requirement, lower-cost advantage comprehensively.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model;
Fig. 2 is switching pulse control mode schematic diagram under cool colour LED group of the present utility model and warm colour LED group parallel way.
In figure: 1. circuit of reversed excitation, 2.DC/DC constant flow module, 3. control chip, 4. cold white LEDs lamp group, 5. warm white LEDs lamp group, 6. red LED lamp, 7. green LED lamp, 8. blue led lamp.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
In embodiment as described in Figure 1, a kind of LED light modulation color-temperature regulating toning colour TV road, comprise ac input end, circuit of reversed excitation 1, DC/DC constant flow module 2, white LED lamp group, control switch group, RGB lamp group, constant current chip group and control chip 3, circuit of reversed excitation 1 comprises two output voltage, be respectively output voltage VO 1 and output voltage VO 2, ac input end connects circuit of reversed excitation 1, output voltage VO 1 connects DC/DC constant flow module 2, DC/DC constant flow module 2, white LED lamp group and the series connection of control switch group, output voltage VO 2, RGB lamp group and the series connection of constant current chip group, control switch group is all connected with control chip 3 with constant current chip group.
White LED lamp group comprises cold white LEDs lamp group 4 and warm white LEDs lamp group 5, control switch group comprises control switch Q1 and control switch Q2, cold white LEDs lamp group 4 is connected with control switch Q1, warm white LEDs lamp group 5 is connected with control switch Q2, cold white LEDs lamp group 4 is in parallel with after warm white LEDs lamp group 5 is connected with control switch Q2 after connecting with control switch Q1, and control chip 3 is connected with control switch Q1 and control switch Q2 respectively.Cold white LEDs lamp group 4 comprises some cold white LEDs lamps, cold white LEDs lamp series connection, and warm white LEDs lamp group 5 comprises some warm white LEDs lamps, and warm white LEDs lamp series connection, the quantity of cold white LEDs lamp is consistent with the quantity of warm white LEDs lamp.
RGB lamp group comprises red LED lamp 6, green LED lamp 7 and blue led lamp 8, constant current chip group comprises three constant current chips, be respectively constant current chip IC1, constant current chip IC2 and constant current chip IC3, red LED lamp 6 is connected with constant current chip IC1, green LED lamp 7 is connected with constant current chip IC2, blue led lamp 8 is connected with constant current chip IC3, after red LED lamp 6 is connected with constant current chip IC1, after green LED lamp 7 is connected with constant current chip IC2, blue led lamp 8 is parallel with one another after connecting with constant current chip IC3, control chip 3 respectively with constant current chip IC1, constant current chip IC2 is connected with constant current chip IC3.
Circuit of reversed excitation 1 changes alternating current into direct voltage, the all controlled chip 3 of control switch Q1, control switch Q2, constant current chip IC1, constant current chip IC2, constant current chip IC3 controls, export different PWM (pulse duration) signal, control the work of different LED lamp.
Specific works mode is as follows: after control chip 3 receives the brightness and colour temperature command signal exporting white light, exports the pulse of PWM Q1 signal controlling, export the pulse of PWMQ2 signal controlling, as shown in Figure 2 to control switch Q2 to control switch Q1.The load of white LED lamp group adopts sequential turn-on mode, namely only has a paths of LEDs lamp group load to be in conducting state simultaneously.Like this, electric current during every paths of LEDs lamp group loaded work piece is exactly the output current of driver module.Because driver module is constant current output type, electric current during so every paths of LEDs lamp group loaded work piece is invariable, can realize the constant current operation of LED under parallel way.Control chip 3 regulates the ON time t1 of every paths of LEDs lamp group load, t2.Wherein: t3 is Dead Time.After mixed light process, can the brightness of free adjustment LED and colour temperature.Like this, white light can be obtained by the proportion adjustment mixed light of cold white LEDs lamp group 4 and warm white LEDs lamp group 5, when only having control switch Q1 conducting, exports cold white light; When only having control switch Q2 conducting, export warm white.Standard compliant white light can be obtained like this, meet the requirement of aobvious finger and there is very high luminous efficiency, avoiding the low light efficiency adopting RGB mixed light to obtain white light, low aobvious finger and complex control algorithm.
After control chip 3 receives the command signal exporting a certain color, PWM RED signal is exported to red LED lamp 6, PWM GREEN signal is exported to green LED lamp 7 and PWM BLUE signal is exported to blue led lamp 8.Control switch Q1 and control switch Q2 can keep turning off.Constant current chip IC1, constant current chip IC2 and constant current chip IC3 are that linear constant current regulates chip.When PWM RED signal exports high level, the operating current of red R ED lamp is constant.When PWM RED signal output low level, red R ED lamp does not work.The work of PWM GREEN signal and PWM BLUE signal in like manner.By PWM RED signal, the proportioning of PWM GREEN signal and PWM BLUE signal different duty, can realize various color.
Circuit of reversed excitation 1 exports two-way VD VO1 and output voltage VO 2.But the regulation of circuit of reversed excitation 1 two-way output is poor usually, and when such as output voltage VO 2 is unloaded, the load capacity of output voltage VO 1 is smaller.In order to improve the regulation of output voltage VO 1, the utility model creatively utilizes the advantage of control chip 3, have employed output voltage VO 1 when working, and suitably increases the method for output voltage VO 2 load, improves the load capacity of output voltage VO 1.Namely, under output state of white light, in order to ensure that output voltage VO 1 can export enough currents, control chip 3 exports the PWM RED signal of certain duty ratio simultaneously, allows the electric current that ruddiness work is certain, and namely output voltage VO 2 has certain load current.The benefit done like this is not only the load capacity that improve output voltage VO 1, simultaneously under state of white light, supplements some ruddiness, is conducive to the aobvious finger improving white light.Experiment proves, by the color rendering index of original white light 80, can bring up to more than 85 like this.
Claims (4)
1. a LED light modulation color-temperature regulating toning colour TV road, it is characterized in that, comprise ac input end, circuit of reversed excitation (1), DC/DC constant flow module (2), white LED lamp group, control switch group, RGB lamp group, constant current chip group and control chip (3), described circuit of reversed excitation (1) comprises two output voltage, be respectively output voltage VO 1 and output voltage VO 2, described ac input end connects circuit of reversed excitation (1), described output voltage VO 1 connects DC/DC constant flow module (2), described DC/DC constant flow module (2), white LED lamp group and the series connection of control switch group, described output voltage VO 2, RGB lamp group and the series connection of constant current chip group, described control switch group and constant current chip group are all connected with control chip (3).
2. a kind of LED light modulation color-temperature regulating toning colour TV road according to claim 1, it is characterized in that, described white LED lamp group comprises cold white LEDs lamp group (4) and warm white LEDs lamp group (5), described control switch group comprises control switch Q1 and control switch Q2, described cold white LEDs lamp group (4) is connected with control switch Q1, described warm white LEDs lamp group (5) is connected with control switch Q2, described cold white LEDs lamp group (4) is in parallel with after warm white LEDs lamp group (5) is connected with control switch Q2 after connecting with control switch Q1, described control chip (3) is connected with control switch Q1 and control switch Q2 respectively.
3. a kind of LED light modulation color-temperature regulating toning colour TV road according to claim 2, it is characterized in that, described cold white LEDs lamp group (4) comprises some cold white LEDs lamps, described cold white LEDs lamp series connection, described warm white LEDs lamp group (5) comprises some warm white LEDs lamps, described warm white LEDs lamp series connection, the quantity of described cold white LEDs lamp is consistent with the quantity of warm white LEDs lamp.
4. a kind of LED light modulation color-temperature regulating toning colour TV road according to claim 1, it is characterized in that, described RGB lamp group comprises red LED lamp (6), green LED lamp (7) and blue led lamp (8), described constant current chip group comprises three constant current chips, be respectively constant current chip IC1, constant current chip IC2 and constant current chip IC3, described red LED lamp (6) is connected with constant current chip IC1, described green LED lamp (7) is connected with constant current chip IC2, described blue led lamp (8) is connected with constant current chip IC3, after described red LED lamp (6) is connected with constant current chip IC1, after green LED lamp (7) is connected with constant current chip IC2, blue led lamp (8) is parallel with one another after connecting with constant current chip IC3, described control chip (3) respectively with constant current chip IC1, constant current chip IC2 is connected with constant current chip IC3.
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| CN201420671569.6U CN204291449U (en) | 2014-11-12 | 2014-11-12 | A kind of LED light modulation color-temperature regulating toning colour TV road |
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| CN201420671569.6U CN204291449U (en) | 2014-11-12 | 2014-11-12 | A kind of LED light modulation color-temperature regulating toning colour TV road |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105188232A (en) * | 2015-10-23 | 2015-12-23 | 深圳市奇脉电子技术有限公司 | LED (light-emitting diode) constant-current drive circuit, constant-current dimming circuit and control method of LED (light-emitting diode) constant-current dimming circuit |
| CN105491761A (en) * | 2015-12-29 | 2016-04-13 | 生迪智慧科技有限公司 | LED lamp capable of adjusting color temperature and color temperature adjustment method for LED lamp |
| CN108924986A (en) * | 2018-05-04 | 2018-11-30 | 广州天键光电科技有限公司 | Lamps and lanterns and lamp control system |
| CN108940930A (en) * | 2018-08-31 | 2018-12-07 | 安徽捷泰智能科技有限公司 | Color selector tunable light source color sorting device |
| CN112449457A (en) * | 2020-10-26 | 2021-03-05 | 深圳市零奔洋光电股份有限公司 | Forward and backward excitation wireless control dimming lamp, system and method |
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2014
- 2014-11-12 CN CN201420671569.6U patent/CN204291449U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105188232A (en) * | 2015-10-23 | 2015-12-23 | 深圳市奇脉电子技术有限公司 | LED (light-emitting diode) constant-current drive circuit, constant-current dimming circuit and control method of LED (light-emitting diode) constant-current dimming circuit |
| CN105491761A (en) * | 2015-12-29 | 2016-04-13 | 生迪智慧科技有限公司 | LED lamp capable of adjusting color temperature and color temperature adjustment method for LED lamp |
| CN105491761B (en) * | 2015-12-29 | 2018-08-14 | 生迪智慧科技有限公司 | The LED light of adjustable color temperature and the color temperature adjusting method of LED light |
| CN108924986A (en) * | 2018-05-04 | 2018-11-30 | 广州天键光电科技有限公司 | Lamps and lanterns and lamp control system |
| CN108940930A (en) * | 2018-08-31 | 2018-12-07 | 安徽捷泰智能科技有限公司 | Color selector tunable light source color sorting device |
| CN108940930B (en) * | 2018-08-31 | 2023-08-08 | 安徽捷泰智能科技有限公司 | Adjustable light source color selection device for color selector |
| CN112449457A (en) * | 2020-10-26 | 2021-03-05 | 深圳市零奔洋光电股份有限公司 | Forward and backward excitation wireless control dimming lamp, system and method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20211112 |