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Simple wall single-live wire touch switch circuit

A technology of touch switch and single live wire, which is applied in the direction of electronic switch, lamp circuit layout, electric light source, etc., can solve the problems of lack of zero voltage control, complicated wiring, large electromagnetic interference, etc., and achieve overall cost reduction, simple circuit design, and anti-corrosion strong interference effect

Pending Publication Date: 2018-11-06
刘冰冰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The wall touch switch has a beautiful and generous appearance, no wear and tear on the touch, long service life, dust-proof, water-proof, safe and reliable, and is deeply loved by users. Touch switches occupy a large proportion in the category of electronic touch switches, which will bring a lot of convenience to users. However, the actual application in the market is not very extensive at present. The reason is that the existing wall touch switch control circuit There are the following defects: 1. Single-chip microcomputer control is generally used, and the cost is high, especially the single-control circuit, which has lower cost performance and is difficult to realize civilianization; 2. The DC power supply basically uses switching power supply, which is high in cost and has certain high-frequency interference; 3. 1. Lack of zero-voltage control. For large-capacitance filter LED lights (switch type), the start-up impulse current is large, the main switching device is easily damaged, and electromagnetic interference is large; 4. There are many circuit components, double-layer PCB structure, many electrolytic capacitors, and poor reliability. The failure rate is high, and the pulse anti-interference ability of the control signal is not high; 5. The structure of each control switch of the dual-control or multi-control circuit is the same, and the control signal sent by the control switch must be identified through coding, and the circuit design is complicated. It needs to be coded before use, and it is often difficult for ordinary users to master it, so it is more troublesome to use, and the wiring during installation is also more complicated

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  • Simple wall single-live wire touch switch circuit
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  • Simple wall single-live wire touch switch circuit

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Experimental program
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specific Embodiment 1

[0015] Such as figure 1 As shown, the simple wall single live wire touch switch circuit of the present invention generally includes a switch main circuit, a main DC power supply circuit, and a human body touch trigger unit. The switch main circuit includes two external terminals L and L1 of the switch circuit, a bidirectional thyristor VT1 and its trigger circuit constituting an electronic switch, and the T1 and T2 poles of the bidirectional thyristor VT1 are connected to the two external wiring terminals respectively. Between terminals L and L1, the trigger circuit of the bidirectional thyristor VT1 includes an anti-interference capacitor C8 and a discharge resistor R11, and the anti-interference capacitor C8 and the discharge resistor R11 are connected in parallel between the T1 pole and the G pole of the bidirectional thyristor VT1, so The switch main circuit is used as the main path of the load current.

[0016] The main DC power supply circuit is composed of a DC linear ...

specific Embodiment 2

[0023]Due to the development of technology, new types of lighting sources emerge in endlessly, from inductively activated fluorescent lamps to electronically activated fluorescent lamps, and to the current LED lamps, the performance of different types of lighting sources is not the same. For example, the power supply of LED lamps is usually AC power is converted to DC power supply through switching power supply to provide working power for LED lights. Switching power supply usually has a large-capacity capacitor, and a large charging current appears at the moment of turning on, which is easy to damage the high-power switching tube; At the moment of brilliance, an induction high voltage will be generated.

[0024] In order to be suitable for controlling LED lamps and inductively started fluorescent lamps at the same time, on the basis of the specific embodiment 1, a zero-voltage monitoring circuit, a blocking circuit and a zero-voltage function automatic clearing circuit are als...

specific Embodiment 3

[0031] This simple wall single live wire touch switch circuit can not only be used as a single-way single-control switch circuit, but also can form a double-control simple wall single-fire wire touch switch circuit after adding few components, which can be used as a single-way double-control switch circuit. The so-called single-way double-control switch circuit means that the same electrical appliance or lighting can be controlled in two different positions (with different switches). The double-control simple wall single-fire wire touch switch circuit includes two parts: the double-control simple wall single-fire wire touch main switch circuit and the double-control simple wall single live wire touch slave switch circuit. Because the slave circuit is powered by the main circuit, no power supply is provided. , which not only simplifies the circuit, but also greatly reduces the cost of the dual-control circuit.

[0032] Such as image 3 As shown, on the basis of the specific em...

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PUM

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Abstract

The invention relates to a simple wall single-live wire touch switch circuit, characterized by comprising a switch main circuit, a main DC power supply circuit and a main human body touch triggering unit, wherein the switch main circuit comprises two external connection terminals of the current switch circuit, a bidirectional thyristor that constitutes an electronic switch, and a triggering circuit of the bidirectional thyristor, the bidirectional thyristor is connected between the two external connection terminals, and the main DC power supply circuit is composed of a DC linear voltage stabilizing circuit. According to the scheme of the invention, by changing the breakdown voltage values of two ends of the output load of the linear voltage stabilizing circuit, the on-off states of the bidirectional thyristor in the switch main circuit can be controlled; and by changing the charge and discharge of a specific capacitor, a dual control function can be realized, the advantages of simplercircuit design, small no-load current and strong anti-interference ability can be achieved, the operation of discriminating signals by using an encoding mode is not required, the overall cost of products can be greatly reduced, and the use can be more convenient.

Description

technical field [0001] The invention relates to a wall touch switch control circuit, in particular to a single live wire simple wall single live wire touch switch circuit. Background technique [0002] The wall touch switch has a beautiful and generous appearance, no wear and tear on the touch, long service life, dust-proof, water-proof, safe and reliable, and is deeply loved by users. Touch switches occupy a large proportion in the category of electronic touch switches, which will bring a lot of convenience to users. However, the actual application in the market is not very extensive at present. The reason is that the existing wall touch switch control circuit There are the following defects: 1. Single-chip microcomputer control is generally used, and the cost is high, especially the single-control circuit, which has lower cost performance and is difficult to realize civilianization; 2. The DC power supply basically uses switching power supply, which is high in cost and has...

Claims

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Application Information

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IPC IPC(8): H03K17/96H03K17/56H03K17/16H05B37/02
CPCH03K17/16H03K17/56H03K17/962H03K2217/0081H05B47/10
Inventor 刘冰冰周文俊刘希真
Owner 刘冰冰