WO2018068485A1 - Led灯条调光调色温电路 - Google Patents

Led灯条调光调色温电路 Download PDF

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Publication number
WO2018068485A1
WO2018068485A1 PCT/CN2017/079955 CN2017079955W WO2018068485A1 WO 2018068485 A1 WO2018068485 A1 WO 2018068485A1 CN 2017079955 W CN2017079955 W CN 2017079955W WO 2018068485 A1 WO2018068485 A1 WO 2018068485A1
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Prior art keywords
series circuit
color temperature
led series
colour temperature
temperature led
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PCT/CN2017/079955
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English (en)
French (fr)
Inventor
薛丹琳
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深圳迪亚士照明科技有限公司
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Publication of WO2018068485A1 publication Critical patent/WO2018068485A1/zh

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light

Definitions

  • the invention relates to the field of LED illumination, in particular to an LED light bar dimming color temperature circuit.
  • the adjustable brightness and color temperature LED flexible strips on the market are separately adjusted by two different color temperature LED circuits, and the circuit structure requires three power input lines.
  • Such a circuit needs to be equipped with a dedicated dimmable color temperature controller, and the dimming and color temperature are separately adjusted, which is not convenient to install or modify, and the adjustment is also inconvenient.
  • the invention provides an LED light bar dimming color temperature circuit, which solves the prior art needs to be equipped with a special dimmable color temperature controller, and the dimming and color temperature are separately adjusted, which is not convenient for installation or Modification, adjustment is not convenient.
  • an LED light bar dimming color temperature circuit including an external dimmable LED driving power source, a first color temperature LED series circuit, a second color temperature LED series circuit, a first current limiting resistor and a second current limiting resistor, wherein the anode of the external dimmable LED driving power source is simultaneously connected with the positive terminal of the first color temperature LED series circuit and the positive terminal of the second color temperature LED series circuit, the first color temperature
  • the negative terminal of the LED series circuit is connected to the negative pole of the external dimmable LED driving power supply through the first current limiting resistor, and the negative terminal of the second color temperature LED series circuit is driven by the second current limiting resistor and the external dimming LED driving power source.
  • the negative pole is connected; the number of LEDs in the first color temperature LED series circuit is not equal to the number of LEDs in the second color temperature LED series circuit, and the first color temperature LED is connected in series when the external dimmable LED driving power source is adjusted to the maximum brightness
  • the current flowing in the circuit is equal to the current flowing in the series circuit of the second color temperature LED.
  • the invention only needs two special power input lines, does not need a dedicated dimming light and a color temperature controller, and can realize the function of dimming and having a color gradable temperature on the circuit which only has the dimming function.
  • Fig. 1 schematically shows a schematic structural view of the present invention.
  • the present invention provides an LED light bar dimming color temperature circuit, comprising an external dimmable LED driving power source 1, a first color temperature LED series circuit 2, a second color temperature LED series circuit 3, a current limiting resistor 4 and a second current limiting resistor 5, wherein the anode of the external dimmable LED driving power source 1 is simultaneously connected to the positive terminal of the first color temperature LED series circuit 2 and the positive terminal of the second color temperature LED series circuit 3
  • the negative end of the first color temperature LED series circuit 2 is connected to the negative pole of the external dimmable LED driving power source 1 through the first current limiting resistor 4, and the negative end of the second color temperature LED series circuit 3 passes through the second current limiting resistor 5 and
  • the negative connection of the external dimmable LED driving power supply 1; the number of LEDs in the first color temperature LED series circuit 2 is not equal to the number of LEDs in the second color temperature LED series circuit 3, in the external dimmable LED driving When the power source 1 is adjusted to the maximum brightness, the current flowing through the first color temperature LED
  • the first color temperature LED series circuit 2 and the second color temperature LED series circuit 3 have different color temperatures (for example, the color temperature of the first color temperature LED series circuit 2 is higher than the color temperature of the second color temperature LED series circuit 3), and both The number of LEDs varies (for example, the number of LEDs in the first color temperature LED series circuit 2 is greater than the number of LEDs in the second color temperature LED series circuit 3), thus constituting an unbalanced structure.
  • the output voltage is high and the current is large, and the driving currents of the first color temperature LED series circuit 2 and the second color temperature LED series circuit 3 are equivalent, and the mixed color temperature is high;
  • the external dimmable LED driving power supply 1 is in the low-intensity output state, the output voltage is lower, and the driving current drop on the first color temperature LED series circuit 2 is much larger than the driving current decreasing amplitude on the second color temperature LED series circuit 3.
  • the ratio of low color temperature in the mixed light emitted by the LED light bar is increased, so that the overall color temperature of the mixed light is lowered, thereby achieving the purpose of dimming and adjusting the color temperature.
  • the invention only needs two power input lines, does not need a dedicated dimming light and a color temperature controller, and can be connected to realize dimming and having a function on a circuit having only a dimmable function.
  • the function of color temperature since the above technical solution is adopted, the invention only needs two power input lines, does not need a dedicated dimming light and a color temperature controller, and can be connected to realize dimming and having a function on a circuit having only a dimmable function. The function of color temperature.
  • a plurality of sets of parallel first color temperature LED series circuits 2 and second color temperature LED series circuits 3 may be disposed.

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  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

一种LED灯条调光调色温电路，包括外置可调光LED驱动电源（1）、第一色温LED串联电路（2）、第二色温LED串联电路（3）、第一限流电阻（4）和第二限流电阻（5），其中，驱动电源的正极同时与第一色温LED串联电路的正极端及第二色温LED串联电路的正极端连接，第一色温LED串联电路的负极端通过第一限流电阻与驱动电源的负极连接，第二色温LED串联电路的负极端通过第二限流电阻与驱动电源的负极连接；第一色温LED串联电路中的LED个数不等于第二色温LED串联电路中的LED个数，在驱动电源被调至最大亮度时，第一色温LED串联电路中流过的电流等于第二色温LED串联电路中流过的电流，从而在只有可调光功能电路上接入实现调光及调色温的功能。

Description

LED灯条调光调色温电路 技术领域
本发明涉及LED照明领域，特别涉及一种LED灯条调光调色温电路。
背景技术
目前，市场上的可调亮度和色温LED软灯条都要是采用两路不同色温LED电路分另调节的方式，电路结构需要三条电源输入线。这样的电路需要配用专用可调光调色温控器，且调光及调色温的分开调节，既不方便安装或改装，调节也不方便。
发明内容
本发明提供了一种LED灯条调光调色温电路，以解决现有技术需要配用专用可调光调色温控器，且调光及调色温的分开调节，既不方便安装或改装，调节也不方便的问题。
为解决上述问题，作为本发明的一个方面，提供了一种LED灯条调光调色温电路，包括外置可调光LED驱动电源、第一色温LED串联电路、第二色温LED串联电路、第一限流电阻和第二限流电阻，其中，外置可调光LED驱动电源的正极同时与第一色温LED串联电路的正极端及第二色温LED串联电路的正极端连接，第一色温LED串联电路的负极端通过第一限流电阻与外置可调光LED驱动电源的负极连接，第二色温LED串联电路的负极端通过第二限流电阻与外置可调光LED驱动电源的负极连接；第一色温LED串联电路中的LED个数不等于第二色温LED串联电路中的LED个数，在所述外置可调光LED驱动电源被调至最大亮度时第一色温LED串联电路中流过的电流等于第二色温LED串联电路中流过的电流。
本发明只要两条电源输入线，不需要专用可调光和调色温控制器，即可在原来只有可调光功能电路上接入实现可调光兼具有可调色温的功能。
附图说明
图1示意性地示出了本发明的结构示意图。
图中附图标记：1、外置可调光LED驱动电源；2、第一色温LED串联电路；3、第二色温LED串联电路；4、第一限流电阻；5、第二限流电阻。
具体实施方式
以下结合附图对本发明的实施例进行详细说明，但是本发明可以由权利要求限定和覆盖的多种不同方式实施。
如图1所示，本发明提供了一种LED灯条调光调色温电路，包括外置可调光LED驱动电源1、第一色温LED串联电路2、第二色温LED串联电路3、第一限流电阻4和第二限流电阻5，其中，外置可调光LED驱动电源1的正极同时与第一色温LED串联电路2的正极端及第二色温LED串联电路3的正极端连接，第一色温LED串联电路2的负极端通过第一限流电阻4与外置可调光LED驱动电源1的负极连接，第二色温LED串联电路3的负极端通过第二限流电阻5与外置可调光LED驱动电源1的负极连接；第一色温LED串联电路2中的LED个数不等于第二色温LED串联电路3中的LED个数，在所述外置可调光LED驱动电源1被调至最大亮度时第一色温LED串联电路2中流过的电流等于第二色温LED串联电路3中流过的电流。
其中，第一色温LED串联电路2和第二色温LED串联电路3具有不同的色温(例如，第一色温LED串联电路2的色温高于第二色温LED串联电路3的色温)，且二者的LED数量不等(例如，第一色温LED串联电路2中的LED数量大于第二色温LED串联电路3的LED个数)，因此构成非平衡结构。
当外置可调光LED驱动电源1处于高亮度输出状态时，其输出压高、电流大，第一色温LED串联电路2和第二色温LED串联电路3的驱动电流相当，混合色温较高；当外置可调光LED驱动电源1处于低亮度输出状态时，输出压较低、第一色温LED串联电路2上的驱动电流下降幅度远大于第二色温LED串联电路3上的驱动电流下降幅度，LED灯条发出的混合光中低色温比例升高，使混合光的总体色温降低，从而实现了调光同时调整色温的目的。
由于采用了上述技术方案，本发明只要两条电源输入线，不需要专用可调光和调色温控制器，即可在原来只有可调光功能电路上接入实现可调光兼具有可调色温的功能。
如图1所示，本发明实施例中可以设置多组并联的第一色温LED串联电路2和第二色温LED串联电路3。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (1)

  1. 一种LED灯条调光调色温电路，其特征在于，包括所述外置可调光LED驱动电源(1)、第一色温LED串联电路(3)、第二色温LED串联电路(2)、第一限流电阻(4)和第二限流电阻(5)，其中，所述外置可调光LED驱动电源(1)的正极同时与所述第一色温LED串联电路(2)的正极端及所述第二色温LED串联电路(3)的正极端连接，所述第一色温LED串联电路(2)的负极端通过所述第一限流电阻(4)与所述外置可调光LED驱动电源(1)的负极连接，所述第二色温LED串联电路(3)的负极端通过所述第二限流电阻(5)与所述外置可调光LED驱动电源(1)的负极连接；
    所述第一色温LED串联电路(2)中的LED个数不等于所述第二色温LED串联电路(3)中的LED个数，在所述外置可调光LED驱动电源(1)被调至最大亮度时所述第一色温LED串联电路(2)中流过的电流等于所述第二色温LED串联电路(3)中流过的电流。
PCT/CN2017/079955 2016-10-10 2017-04-10 Led灯条调光调色温电路 WO2018068485A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109496019A (zh) * 2018-09-05 2019-03-19 上海强凌电子有限公司 Led灯丝及led灯

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106332369B (zh) * 2016-10-10 2018-11-06 深圳迪亚士照明科技有限公司 Led灯条调光调色温电路
CN106678575A (zh) * 2017-02-28 2017-05-17 漳州立达信光电子科技有限公司 灯具装置跟发光模组块
CN108419329B (zh) * 2018-01-31 2020-09-29 佛山冠今光电科技有限公司 Led灯调光方法、调光模组和灯具
WO2020237427A1 (zh) * 2019-05-24 2020-12-03 深圳迪亚士照明科技有限公司 一种亮度色温同步调整led软灯条电路及软灯条

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103843458A (zh) * 2011-09-12 2014-06-04 朱诺制造有限公司 具有可调节色温的可调光led灯组件
US20140361697A1 (en) * 2011-12-02 2014-12-11 Lynk Labs, Inc Color temperature controlled and low thd led lighting devices and systems and methods of driving the same
CN104507200A (zh) * 2014-11-19 2015-04-08 上海顿格电子贸易有限公司 一种led调光调色温电路
CN205160868U (zh) * 2015-11-18 2016-04-13 深圳市裕富照明有限公司 Led电路以及led灯具
CN106332369A (zh) * 2016-10-10 2017-01-11 深圳迪亚士照明科技有限公司 Led灯条调光调色温电路
CN206118121U (zh) * 2016-10-10 2017-04-19 深圳迪亚士照明科技有限公司 Led灯条调光调色温电路

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102032468A (zh) * 2009-09-25 2011-04-27 苏州京东方茶谷电子有限公司 一种可变色温交流发光二极管照明装置
CN102469654A (zh) * 2010-11-15 2012-05-23 展晶科技(深圳)有限公司 可变色温照明设备
CN203399370U (zh) * 2013-08-08 2014-01-15 晨怡（浙江）电子实业有限公司 一种自然变色温调光led灯

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103843458A (zh) * 2011-09-12 2014-06-04 朱诺制造有限公司 具有可调节色温的可调光led灯组件
US20140361697A1 (en) * 2011-12-02 2014-12-11 Lynk Labs, Inc Color temperature controlled and low thd led lighting devices and systems and methods of driving the same
CN104507200A (zh) * 2014-11-19 2015-04-08 上海顿格电子贸易有限公司 一种led调光调色温电路
CN205160868U (zh) * 2015-11-18 2016-04-13 深圳市裕富照明有限公司 Led电路以及led灯具
CN106332369A (zh) * 2016-10-10 2017-01-11 深圳迪亚士照明科技有限公司 Led灯条调光调色温电路
CN206118121U (zh) * 2016-10-10 2017-04-19 深圳迪亚士照明科技有限公司 Led灯条调光调色温电路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109496019A (zh) * 2018-09-05 2019-03-19 上海强凌电子有限公司 Led灯丝及led灯

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