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Double-key touch type light switch circuit

A touch-type, light switch technology, applied in the electronic field, can solve the problems of easy sparks, easy vibration of contacts, and large pressing force, etc., to achieve the effect of solving the large pressing force

Inactive Publication Date: 2017-06-09
GUANGXI UNIV
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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 provide a double-button touch light switch circuit to solve the problems of large pressing force, easy vibration of contacts, easy generation of sparks, and easy mechanical wear when the existing light switch adopts a mechanical switch.

Method used

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  • Double-key touch type light switch circuit

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings.

[0011] Such as figure 1 As shown, the double-button touch light switch circuit of the present invention adopts 220V mains electricity to be stepped down by transformer T1, bridge rectified by diodes D1-D4, and filtered by capacitor C1, and a DC voltage is formed at the positive and negative ends of capacitor C1 respectively. The 12V power supply terminal and the ground terminal supply power to the subsequent circuit; in the subsequent circuit, the touch electrode ON and the touch electrode OFF are respectively connected in series with resistors R3 and R4, and then respectively connected to the bases of transistors Q3 and Q5, and the collector of transistor Q3 The electrodes are connected to the 12V power supply, the emitter is connected to the collectors of the transistors Q4 and Q5; the emitter of the transistor Q5 is connected to the base of the transistor Q4, and th...

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PUM

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Abstract

The invention provides a double-key touch type light switch circuit. A touch electrode ON and a touch electrode OFF are respectively used as an on touch point and an off touch point. When someone touches the touch electrode ON by one hand, a human body sensing signal is amplified by the circuit, a relay K is pushed to be electrified and is attracted to form a self-locking state, and a lamp L1 is turned on and the on state is kept. When the lamp needs to be turned off, the touch electrode OFF is touched by the hand, a human body sensing signal is amplified by the circuit and thus the relay K loses the power, and the lamp L1 is turned off. Because the human body sensing signal is used for controlling, the on-off function can be realized only by touching the touch electrodes by the hand, so that no action element of a mechanical switch is used and thus no mechanical wearing phenomenon occurs. Because of replacement of the mechanical switch, problems of needing a large pressing force, being easy to vibrate of the touch point, being easy to generate sparkle, and being easy to mechanically wear of the mechanical switch can be solved.

Description

technical field [0001] The invention relates to a light switch circuit, in particular to a double-key touch type light switch circuit, which belongs to the field of electronic technology. Background technique [0002] The switches we use in daily life are generally mechanical switches. The disadvantages of mechanical switches are that they are pressed hard, the contacts are easy to vibrate, easy to generate sparks, and easy to mechanical wear. For light switches, due to the high frequency of use, if a mechanical switch is used, the contact material generally needs special treatment, otherwise it is very easy to damage. With the development of home intelligence, we hope to use touch switches as light switches. Because touch switches are controlled by human body induction signals, the switch function can be realized by lightly touching the touch electrodes with hands. There is no mechanical switch. The action element will not be subject to mechanical wear, and the average ser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/96H05B37/02
CPCH03K17/96H05B47/10
Inventor 龙邹
Owner GUANGXI UNIV