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Signal amplification circuit based light-control LED (Light-Emitting Diode) energy-saving control system

A signal amplification circuit and energy-saving control system technology, applied in the field of electronics, can solve the problems of unstable output current and inaccurate brightness signal processing, and achieve the effects of stable chip performance, suppression of zero-point drift, and stable brightness.

Inactive Publication Date: 2016-10-12
CHENGDU ANGDIJIA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of inaccurate brightness signal processing and unstable output current in the light-controlled LED control system in the prior art, and provide a light-controlled LED energy-saving control system based on a signal amplifying circuit

Method used

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  • Signal amplification circuit based light-control LED (Light-Emitting Diode) energy-saving control system
  • Signal amplification circuit based light-control LED (Light-Emitting Diode) energy-saving control system

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Embodiment

[0019] Such as figure 1 As shown, the present invention is mainly composed of a control chip U1, a brightness sensor, a transistor VT1, a resistor R3, a resistor R4, a polar capacitor C4, a Zener diode D2, a signal amplification circuit, a signal receiving circuit, a current adjustment circuit, and a linear drive circuit. .

[0020] During implementation, the N pole of the Zener diode D2 is connected to the VDD pin of the control chip U1, and its P pole is connected to the base of the triode VT1 after passing through the resistor R3. The positive pole of the polarity capacitor C4 is connected to the CTH pin of the control chip U1 through the resistor R4, and the negative pole thereof is grounded. The signal receiving circuit is connected with the brightness sensor. The signal amplifying circuit is connected in series between the signal receiving circuit and the ANT pin of the control chip U1. The current adjustment circuit is respectively connected with the emitter of the t...

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Abstract

The invention discloses a signal amplification circuit based light-control LED (Light-Emitting Diode) energy-saving control system. The system is characterized by mainly comprising a control chip U1, a luminance sensor, a triode VT1, a voltage stabilizing diode D2, a signal receiving circuit, a polar capacitor C4, a signal amplification circuit, a current regulation circuit and a linear driving circuit, wherein the signal amplification circuit is connected between the signal receiving circuit and a pin ANT of the control chip U1 in series; the current regulation circuit is connected with an emitting electrode of the triode VT1 and the control chip U1, respectively; and the linear driving circuit is connected with the current regulation circuit. According to the signal amplification circuit based light-control LED energy-saving control system, an interference signal in signals output by the luminance sensor can be eliminated so that the signals output by the luminance sensor are accurate, thus the accuracy of the system for signal processing is improved; and meanwhile the current intensity can be effectively regulated, thus steady currents can be output by the system.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a light-controlled LED energy-saving control system based on a signal amplifying circuit. Background technique [0002] At present, due to the characteristics of low energy consumption, long service life, safety and environmental protection, LED lamps have become one of the mainstream products for people's living lighting. In life, people often use voice-activated and light-activated LED control systems to turn on and off LED lights. The light-controlled LED control system is favored by people because it can control the opening and closing of LED lights according to the brightness of the LED light environment, and can effectively meet people's requirements for LED lights in terms of energy saving. However, the existing light-controlled LED control system has the problem of inaccurate processing of brightness signals, which makes it unable to accurately control the opening and closing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00H05B45/12H05B45/36H05B45/395H05B45/56
CPCH05B45/50H05B45/00H05B45/10
Inventor 周建英
Owner CHENGDU ANGDIJIA TECH CO LTD
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