Capacitive touch switch

A touch switch, capacitive technology, applied in the field of capacitive touch switches, can solve problems such as easy malfunctions

Active Publication Date: 2016-10-19
GUANGXI POWER GRID CO LIUZHOU POWER SUPPLY BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of prone to misoperation existing in the existing capacitive touch switch, the present invention provides a capacitive touch switch, including a single live wire unit, a holding unit, an anti-interference unit and a touch unit

Method used

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Examples

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with accompanying drawing.

[0032] like figure 1 Shown is a structural diagram of an embodiment of a capacitive touch switch, including a single live wire unit 10 , a holding unit 20 , an anti-interference unit 30 and a touch unit 40 .

[0033] The n touch pulses P1-Pn output by the touch unit are sent to the anti-interference unit, and the anti-interference unit performs anti-interference processing on the n touch pulses respectively, and the output n control pulses M1-Mn are sent to the holding unit, and the holding unit After the n control pulses are triggered and the status is kept, the output n single live wire on-off control signals G1-Gn are sent to the single live wire unit. n is the number of switches of the capacitive touch switch, that is, the capacitive touch switch has n switches.

[0034] The single live wire unit includes a single live wire power-taking module and a single live wire o...

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Abstract

A capacitive touch switch comprises a single live wire unit, a maintaining unit, an anti-interference unit and a touch unit; a controllable alternating current switching circuit is controlled through a capacitive touch key to be powered on and off to achieve a switching function. The capacitive touch switch can effectively filter out power frequency interference and disturbing pulses above the power frequency, that is, normal touch operation pulse signals with the width larger than a specified value are allowed to pass, positive narrow pulses in the negative wide pulse period and negative narrow pulses in the positive wide pulse period are automatically filtered, and especially the filtering capacity can be fast restored to filter continuous positive narrow pulse interference signals or negative narrow pulse interference signals. The maximum widths of the positive narrow pulses and the negative narrow pulses needing to be filtered can be adjusted by changing the charging time constant and the discharging time constant. The capacitive touch switch can serve as a substitute product for a common switch.

Description

technical field [0001] The invention relates to a control switch of electrical equipment, in particular to a capacitive touch switch. Background technique [0002] At present, the MCU is used to control the capacitive touch switch in the market. The MCU is easily affected by various interferences, and the switch is prone to uncontrolled misoperation. The trigger IC module with trigger output, especially the capacitive touch IC, has low anti-interference ability, and the switch is also prone to uncontrolled misoperation. Contents of the invention [0003] In order to solve the problem of prone to malfunction in the existing capacitive touch switch, the present invention provides a capacitive touch switch, which includes a single live wire unit, a holding unit, an anti-interference unit and a touch unit. [0004] The single live wire unit includes a single live wire power-taking module and a single live wire on-off control module, and is provided with a single live wire inp...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H03K17/96
CPCH03K17/9622
Inventor王兵凌云曾红兵
OwnerGUANGXI POWER GRID CO LIUZHOU POWER SUPPLY BUREAU