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Touch-type touch control switch

A touch switch and touch technology, applied in the field of touch touch switches, can solve problems such as low sensitivity and inability to realize dimming in lighting circuits.

Inactive Publication Date: 2010-08-04
东莞市巨旭灯饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current touch switch still has certain shortcomings: the sensitivity is not high, and the function of dimming cannot be realized when used in the lighting circuit, etc.

Method used

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  • Touch-type touch control switch
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  • Touch-type touch control switch

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, this real type is described further:

[0014] See figure 2 , the present invention includes: a DC current input circuit 1 providing power for the circuit, an LED illuminant 2 as lighting, a constant current drive chip 3 for driving the LED illuminant 2, and a single-chip microcomputer 4 for controlling the circuit, and a trigger circuit is also included in the circuit , the trigger circuit includes: a pair of D flip-flops 5, one pin of the trigger 5 is connected to a touch electrode 6, the trigger 5 is connected to the single-chip microcomputer 4, and the trigger 5 is triggered to generate a positive pulse output action by triggering the touch electrodes 6, Input the positive pulse signal into the single-chip microcomputer 4, and after receiving the positive pulse signal, the single-chip microcomputer 4 outputs a pulse width modulation signal through one of the pins to drive the constant current drive chip 3, thereby driv...

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Abstract

The invention relates to the technical field of touch control switches. In the touch control switches, a circuit comprises a trigger circuit, wherein the trigger circuit comprises a double-D trigger; a pin of the trigger is connected with a touch electrode; the trigger is connected with a singlechip, is triggered to generate positive pulse output action by triggering the touch electrode and inputs a positive pulse signal to the singlechip; and after receiving the positive pulse signal, the singlechip outputs a pulse-width modulation signal through the pin to drive a constant current driving chip, so that an LED luminous body is driven. After a human finger touches the touch electrode, the trigger performs overturn and restoration on the inner circuit state and outputs the positive pulse signal. The singlechip receives the positive pulse signal and outputs the pulse-width modulation signal to drive the constant current driving chip, so that LED luminous body is driven to irradiate. The touch-type touch control switch not only can be suitable for automatic illumination in places such as corridors, passageways, basements, garages and the like, but also can be used for directly replacing conventional switches. Furthermore, the touch-type touch control switch has a regulation function, and can regulate the output current intensity, so the luminance of the LED luminous body can be regulated.

Description

Technical field: [0001] The invention relates to the technical field of touch switches, in particular to a touch-type touch switch. Background technique: [0002] With the development of science and technology, the traditional key switch has been difficult to meet people's needs, so now there are many new touch switches, such as: voice-activated switches, photosensitive switches and so on. In addition, since human beings are conductors, they are equivalent to a section of antenna in space, which can induce the surrounding electromagnetic fields such as wires to form induced voltages on the human body. According to this principle, people design human body touch switch. When using this switch, when the human body touches the touch switch, this voltage is input to the amplifier circuit in the touch switch, and through amplification, shaping forms a trigger signal to flip the internal bistable circuit, and then triggers the SCR to turn on the circuit , making the lamp glow. A...

Claims

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Application Information

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IPC IPC(8): H05B37/02
Inventor 赵青霞
Owner 东莞市巨旭灯饰有限公司
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