No-voltage-type electronic touch switch

A touch switch, zero-voltage technology, applied in electronic switches, electrical components, pulse technology, etc., can solve the problems of affecting product exports, turning off lights and repairing electric shocks, and high component costs, achieving extended life, high reliability, and fewer components. Effect

Inactive Publication Date: 2013-06-05
CITY COLLEGE WENZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The electronic touch switches currently on the market have the following defects: 1. Lack of zero voltage control function. Although some products have zero voltage function in working state, the startup is still random.
This will not only affect the life of the switch and lamps, but also make it difficult to pass the EMC test and affect the export of products; 2. The no-load current of the switch is greater than 100μA, and cold flashes will appear when controlling low-power energy-saving lamps and LED lights; 3. Lack of live wire identification function , the switch is wrongly connected to the ground wire, and there will be a danger of electric shock when the light is turned off for maintenance; 4. The presence of electrolytic capacitors in the circuit affects the working life and long-term reliability; 5. The structure is complex and the cost of components is high
Due to the above reasons, it has seriously affected the popularization and promotion of electronic touch switches.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0017] Such as figure 1 , figure 2 , image 3 As shown, the zero-voltage electronic touch switch of this embodiment includes a bridge rectifier circuit composed of a rectifier element Q1, a switch circuit composed of a power thyristor Q3, a pulse trigger circuit composed of a micro-trigger thyristor Q2, zero voltage detection and Output circuit, pulse blocking and power-on reset circuit, live wire identification circuit, human body touch circuit and DC voltage regulator circuit. An anti-interference and anti-vibration circuit is provided between the human body touch circuit and the pulse blocking circuit.

[0018] The zero-voltage detection and output circuit is placed between the pulse trigger circuit and the pulse blockade and power-on reset circuit, wherein the zero-voltage detection circuit is composed of a first resistor R1 and a second resistor R2 connected in series, and the zero-voltage output circuit is composed of a first It is composed of an integrated inverter ...

Embodiment 2

[0027] Such as Figure 4 , Figure 5 As shown, Embodiment 2 has a bridge rectifier circuit composed of rectifier element Q1 in Embodiment 1, a switch circuit composed of power thyristor Q3, a pulse trigger circuit composed of micro-trigger thyristor Q2, a zero voltage detection and output circuit, The live wire identification circuit, the human body touch circuit and the DC voltage stabilizing circuit differ in that: the pulse blockade circuit is composed of a monostable circuit composed of the seventh integrated inverter U1G with a delay circuit and a blockade diode VD4. The input end of the seven integrated inverter U 1G (the 13th pin of U 1G) is connected to the output end of the human body touch circuit (the 8th pin of the fourth integrated inverting U 1D) through the PNP transistor Q4, and the seventh integrated inverting The output end of U1G (the 12th pin of U1G) is connected with the input end (the 1st pin of U1A) of the first integrated inverter U1A of the zero volta...

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PUM

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Abstract

A no-voltage-type electronic touch switch comprises a bridge rectifier circuit, a switch circuit, a pulse trigger circuit, a pulse inhibiting circuit, a human body touch circuit and a direct-current voltage stabilizing circuit. A non-voltage detection and output circuit is inserted between the pulse trigger circuit and the pulse inhibiting circuit. When the switch is just triggered and turned on or is under a conducting state, the electronic touch switch can guarantee that in any state, the switch is always under ideal conditions including a non-voltage conducting state or under a non-current off state. The electronic touch switch can be used as a wall switch or a remote-control switch or a corridor lamp delay switch.

Description

technical field [0001] The invention relates to an electronic touch switch, which can be used as a wall switch, a remote control switch and a corridor light delay switch. Background technique [0002] The electronic touch switch mainly includes a bridge rectifier circuit, a switch circuit, a pulse trigger circuit, a pulse blockade circuit, a human body touch circuit, and a DC voltage regulator circuit. On-off of load circuits such as electrical appliances. [0003] The electronic touch switches that appear on the market currently have the following defects: 1. Lack of zero-voltage control function. Although some products have a zero-voltage function in the working state, the startup is still random. This will not only affect the life of the switch and lamps, but also make it difficult to pass the EMC test and affect the export of products; 2. The no-load current of the switch is greater than 100μA, and cold flashes will appear when controlling low-power energy-saving lamps ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/96
Inventor 刘冰冰刘若望刘希真
Owner CITY COLLEGE WENZHOU UNIV
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