Light source drive circuit and brightness and color temperature controller

A light source driving circuit and controller technology, applied in the field of light sources, can solve the problem of inability to adjust the color temperature of the light source, and achieve the effect of simple, convenient cost and cost saving

Active Publication Date: 2016-06-08
AOTU ELECTRONICS WUHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such dimmers can only be used to adjust the brightness of the light source and cannot adjust the color temperature of the light source.

Method used

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  • Light source drive circuit and brightness and color temperature controller
  • Light source drive circuit and brightness and color temperature controller
  • Light source drive circuit and brightness and color temperature controller

Examples

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Embodiment Construction

[0020] Detailed reference will be given below to examples of the present invention. Although the present invention has been illustrated and illustrated by these embodiments, it should be noted that the present invention is not limited to these embodiments. On the contrary, the invention covers all alternatives, modifications and equivalents which are within the spirit and scope of the invention as defined by the appended claims.

[0021] In addition, in order to better illustrate the present invention, numerous specific details are given in the specific embodiments below. It will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the gist of the present invention.

[0022] Figure 1A Shown is a block diagram of a light source driving circuit 100 according to an embodiment of the p...

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PUM

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Abstract

The invention discloses a light source drive circuit and a brightness and color temperature controller. The light source drive circuit is used to adjust the brightness and color temperature of a light source, and comprises a power converter and the brightness and color temperature controller coupled to the power converter. The power converter is connected between a power source and the light source, and used to receive electric energy from the power source and provides the adjusted electric energy to the light source. The brightness and color temperature controller is used to receive a conduction detection signal which is used to indicate the conduction state of a three-end silicon-controlled light modulator connected between the power supply and the power converter, and adjust the brightness of the light source based on the conduction detection signal. The brightness and color temperature controller is also used to receive a switch monitoring signal which is used to indicate ON/OFF operation of a switch connected to the three-end silicon-controlled light modulator, and adjust the color temperature of the light source based on the switch monitoring signal. The power switch is operated to adjust the brightness and color temperature of the light source simultaneously, no extra special device is needed, operation is simple and convenient, and the cost is reduced.

Description

technical field [0001] The invention relates to the field of light sources, in particular to a light source driving circuit and a brightness and color temperature controller. Background technique [0002] In recent years, new light sources such as light-emitting diodes (light-emitting diodes, LEDs) have made progress in materials and manufacturing. LED has the characteristics of high efficiency, long life, bright colors, etc., and can be used in the fields of automobiles, computers, communications, military and daily necessities. For example, LED lamps can replace traditional incandescent lamps as lighting sources. [0003] The light source can be adjusted in different ways. For example, a power converter receives an AC voltage from an AC power source and generates a DC voltage to power an LED light source. The controller adjusts the output of the power converter according to the dimmer coupled between the AC power source and the power converter, thereby adjusting the bri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 阎铁生郭清泉苏英杰
Owner AOTU ELECTRONICS WUHAN
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