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LED lamp adjustable in luminance and color temperature

A technology of LED lamps and LED light-emitting tubes, applied in the field of lighting, can solve the problems of high production cost and failure rate, and achieve the effects of reducing production cost and failure rate, reducing occupation, and simplifying circuits

Inactive Publication Date: 2013-02-06
BEIJING ITSYNC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for better flexibility by controlling both colors (white) emitted from multiple colored lights on an LED bulb without requiring complex circuits or complicated controls that require more expensive components than usual.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the performance and functionality of LED lamp designs while reducing their complexity compared to previous methods such as changing gains or adding more colored components.

Method used

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  • LED lamp adjustable in luminance and color temperature
  • LED lamp adjustable in luminance and color temperature
  • LED lamp adjustable in luminance and color temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] figure 1 A schematic diagram showing an LED lamp with adjustable brightness and color temperature according to Embodiment 1 of the present invention, as shown in figure 1 As shown, the LED lamp includes: a DC power supply module 10, an instruction receiving module 20, a control drive module 30, a first LED light-emitting tube group 40, a second LED light-emitting tube group 50, a first dimming module 60 and a second dimming module Module 70, the connections and functions of each module are as follows:

[0018] The DC power supply module 10 is used to provide working voltage for the control drive module 30, the first LED light-emitting tube group 40 and the second LED light-emitting tube group 50;

[0019] The instruction receiving module 20 is configured to receive control instructions, for example, the control instructions issued by the user by operating the remote control or by other means, which are not limited in the embodiments of the present invention;

[0020] ...

Embodiment 2

[0026] like figure 2 As shown, in order to ensure that the LEDs in the two groups of LED light-emitting tubes can work in the best state when the LEDs are turned on, the second embodiment of the present invention adds two constant current modules to the LED lamps: the first constant current module 80 and the first constant current module 80. The second constant current module 90 realizes power supply for two groups of LED light-emitting tube groups in a linear constant current manner.

[0027] like figure 2 As shown, the first constant current module 80 is connected to the first dimming module 60, and the first constant current module 80 is used to flow through the first LED light emitting tube group 40 when the first LED light emitting tube group 40 is working (that is, conducting). The current value of the LEDs in the group 40 is maintained as the rated operating current value of the LEDs in the first LED light-emitting tube group 40; and the second constant current modul...

Embodiment 3

[0031] image 3 A circuit diagram of the first (or second) LED light-emitting tube group, the first (or second) dimming module and the first (or second) constant current module in the LED lamp according to the third embodiment of the present invention is shown. like image 3 As shown, in the third embodiment, any one of the LED light-emitting tube groups in the first and second embodiments can be composed of one or more LEDs connected in series in the forward direction, and any dimming module can be realized by using a field effect tube. , any one of the constant current modules in the second embodiment can be realized by using a constant current diode, and the constant current value of the constant current diode is equal to the rated operating current value of the LED.

[0032] like image 3 As shown, in the first LED light-emitting tube group or the second LED light-emitting tube group, multiple LEDs are connected in series in the forward direction, wherein the series in t...

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PUM

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Abstract

The invention discloses an LED lamp adjustable in luminance and color temperature. The LED lamp comprises a direct-current power module, an order receiving module, a control driving module, a first LED group, a second LED group, a first dimming module and a second dimming module. The order control module is used for receiving control orders; the control driving module is used for outputting a first PWM (pulse width modulation) signal and a second PWM signal according to the control orders received by the order receiving module; the first LED group and the second LED group are different in color temperature, LEDs in the first LED group and the second LED group are all white-light LEDs, and the LEDs in the same LED group are uniform in color temperature; the first dimming module is used for controlling operating states and luminance of the first LED group according to the first PWM signal; and the second dimming module is used for controlling operating states and luminance of the second LED group according to the second PWM signal. Production cost of the LED lamp is reduced while failure rate of the LED lamp is decreased, and occupancy of system resources is reduced.

Description

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Claims

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Application Information

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Owner BEIJING ITSYNC TECH
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