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Multi-circuit-processing type energy-saving light control system for large outdoor LED display screen

A display screen and multi-circuit technology, applied in the direction of static indicators, instruments, etc., can solve the problems of inaccurate signal processing, poor stability of driving voltage and current, etc., to improve stability and reliability, maintain stable output current pulsation, Reduce the effect of shock

Inactive Publication Date: 2016-11-23
成都东创精英科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of inaccurate signal processing of the light control system used in the existing large outdoor LED display screen, and poor stability of the output driving voltage and current, and provide a multi-circuit for outdoor large LED display screen Processing energy-saving light control system

Method used

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  • Multi-circuit-processing type energy-saving light control system for large outdoor LED display screen
  • Multi-circuit-processing type energy-saving light control system for large outdoor LED display screen
  • Multi-circuit-processing type energy-saving light control system for large outdoor LED display screen

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Embodiment

[0023] Such as figure 1 As shown, the present invention is mainly composed of a control chip U1, a brightness sensor RL, a triode VT1, a resistor R1, an inductor L1, a polar capacitor C1, a polar capacitor C2, a diode D1, a buffer protection circuit, a signal level adjustment circuit, and a voltage doubling adjustment circuit, self-excited oscillation circuit, and delay switch circuit.

[0024] When connecting, the negative pole of the polarity capacitor C2 is connected to the TRHIG pin of the control chip U1, and the positive pole is connected to the REST pin of the control chip U1 after passing through the resistor R1. The signal level adjustment circuit is connected to the positive pole of the polarity capacitor C2. The N pole of the diode D1 is connected to the emitter of the triode VT1, and the P pole is connected to the signal level adjustment circuit after passing through the inductance L1 and the brightness sensor RL. The positive pole of the polarity capacitor C1 is...

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Abstract

The invention discloses a multi-circuit-processing type energy-saving light control system for a large outdoor LED display screen. The multi-circuit-processing type energy-saving light control system is characterized by mainly comprising a control chip U1, a bright sensor RL, a triode VT1, a diode D1, a polar capacitor C1, a signal level regulating circuit, a voltage-multiplying regulating circuit, a self-oscillating circuit, a delay switch circuit and a buffer protecting circuit connected with the delay switch circuit. The multi-circuit-processing type energy-saving light control system has the advantages that interference signals in signals output by the bright sensor RL can be inhibited or eliminated to allow the level of input signals to keep stable, leaked currents and lost currents can be reduced effectively, the abnormal fluctuations of the currents can be inhibited to allow the pulsation of the output currents to keep stable, the signal processing accuracy of the system is increased effectively, and the stability of the output voltage and currents of the system is increased.

Description

technical field [0001] The invention relates to the field of energy saving, in particular to a multi-circuit processing energy-saving light control system for large outdoor LED display screens. Background technique [0002] LED digital flat panel soft light is a new generation of green and environment-friendly light source that uses low-power LED to form surface light and combines with high transmittance soft light plate. LED digital flat panel soft light has the characteristics of soft and uniform illumination, no infrared rays and ultraviolet rays, the surface brightness is lower than that of tricolor fluorescent lamps, no glare, and no glare. LED digital flat panel soft lights are widely used in the lighting of large outdoor display screens because of the above-mentioned characteristics. Control LED lights to turn off during the day and turn on at night. With the continuous development of technology, the manual turn-on and turn-off control method adopted by outdoor LED l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 薛鸿雁
Owner 成都东创精英科技有限公司
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