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Signal processing system for optically controlled LED

A signal processing and processing chip technology, applied in the electronic field, can solve problems such as inaccurate brightness signal processing, and achieve the effect of ensuring accuracy

Inactive Publication Date: 2016-12-07
CHENGDU FEIKAIRUI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect that the signal processing system of the light-controlled LED control system in the prior art is susceptible to external electromagnetic wave interference and inaccurately process the brightness signal, and provides a signal processing system for light-controlled LEDs

Method used

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  • Signal processing system for optically controlled LED

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Embodiment

[0015] like figure 1 Shown, the present invention is mainly by processing chip U, triode VT1, N pole is connected with the FDBK pin of processing chip U, P pole is connected with the COM pin of processing chip U after resistor R6 Diode D2, P pole is passed through After the resistor R7 is connected to the VNEG pin of the processing chip U, the diode D3 whose N pole is connected to the base of the transistor VT1, a low-pass filter circuit connected to the VINP pin and the GNEG pin of the processing chip U respectively, and It consists of a signal emission conditioning circuit connected to the emitter of the triode VT1 and the processing chip U; the collector of the triode VT1 is connected to the FDBK pin of the processing chip U.

[0016] Wherein, the low-pass filter circuit is composed of amplifier P1, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, polar capacitor C1, polar capacitor C2, polar capacitor C3, polar capacitor C4, and diode D1 composition.

[0...

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Abstract

The invention discloses a signal processing system for an optically controlled LED. The signal processing system is characterized by mainly comprising a processing chip U, a triode VT1, a diode D2, a diode D3, a low-pass filter circuit and a signal emitting and conditioning circuit, wherein the low-pass filter circuit is connected with a VINP pin and a GNEG pin of the processing chip U separately; and the signal emitting and conditioning circuit are connected to an emitter of the triode VT1 and the processing chip U separately. By the signal processing system, a harmonic wave, caused by an external interference wave, of an input signal can be eliminated or inhibited; the bandwidth width of an output signal can also be adjusted and the output signal is consistent with an input collection signal, so that the signal processing accuracy is ensured and the on and off control accuracy of an optically controlled LED control system on an LED lamp is effectively ensured.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a signal processing system for light-controlled LEDs. 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 control or light control control system to realize the opening and closing of 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 signal processing system of the existing light-controlled LED control system is susceptible to external electromagnetic wave interference and inaccurately processes the brightness signal, resulting in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00
Inventor 不公告发明人
Owner CHENGDU FEIKAIRUI TECH CO LTD
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