Zero voltage electronic touch switch

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 ...

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.

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