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Constant-current low-interference touch switch

A touch switch, low-interference technology, applied in the field of constant-current and low-interference touch switches, can solve the problem of high malfunction rate, and achieve the effects of avoiding malfunction, accurately identifying clutter signals, and stabilizing trigger signals.

Inactive Publication Date: 2018-02-23
CHENGDU LEIKEER SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect of high misoperation rate of the traditional touch switch, and provide a constant current low interference touch switch

Method used

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Embodiment

[0017] Such as figure 1 As shown, the present invention mainly consists of time base chip U2, transistor VT1, transistor VT2, transistor VT3, transistor VT4, diode rectifier U1, touch piece M1, touch piece M2, fuse FU, resistance R1, resistance R2, resistance R3, resistance R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, Zener diode D1, diode D2, diode D3, diode D4, diode D5, relay K, capacitor C1, capacitor C2 is composed of the first amplifying circuit, the amplitude stabilizing circuit and the second amplifying circuit.

[0018] When connected, the first amplifying circuit is connected to the touch panel M1, the second amplifying circuit is connected to the touch panel M2, and the resistor R11 is connected in series between the first amplifying circuit and the TRI pin of the time base chip U2. The resistor R12 is connected in series between the second amplifying circuit and the THRE pin of the time base chip U2...

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Abstract

The invention discloses a constant-current low-interference touch switch, which is characterized in that it is mainly composed of a time base chip U2, a triode VT1, a triode VT2, a triode VT3, a triode VT4, a diode rectifier U1, a touch piece M1, a touch piece M2, and a fuse FU is composed of a first amplifying circuit connected to the touch sheet M1, and the like. The invention only needs to touch different touch pieces by the human body to start or stop the device, and by processing the trigger signal, the trigger signal is made more stable, and the misoperation of the touch switch is avoided. The present invention has a constant working current, so it has high stability. The present invention can amplify the clutter signal induced by the human body, so that the present invention can identify the clutter signal more accurately, and the malfunction rate of the present invention is reduced.

Description

technical field [0001] The invention relates to a touch switch, in particular to a constant current low-interference touch switch. Background technique [0002] At present, many mechanical equipment use touch switches to control the start and stop of the equipment. However, the traditional touch switches have a high rate of misoperation, which seriously affects the normal operation of the equipment. Contents of the invention [0003] The object of the present invention is to overcome the defect of high misoperation rate of the traditional touch switch, and provide a constant current low-interference touch switch. [0004] The object of the present invention is achieved through the following technical solutions: a constant current low-interference touch switch, mainly composed of a time base chip U2, a transistor VT1, a transistor VT2, a transistor VT3, a transistor VT4, a diode rectifier U1, a touch chip M1, and a touch chip M2 , fuse FU, amplitude stabilizing circuit, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/96G05F1/46
CPCH03K17/96G05F1/461H03K2017/9613
Inventor 黄涛
Owner CHENGDU LEIKEER SCI & TECH
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