WO2020098739A1 - Single-live wire electronic switch - Google Patents

Abstract

The present invention provides a single-live wire electronic switch. The single-live wire electronic switch comprises: a controller communication module, and multiple switch load circuits connected in parallel. Each switch load circuit comprises a switch circuit and a load that are connected in series to mains power; the controller communication module comprises multiple output ends; the controller communication module is electrically connected to multiple switch circuits respectively by means of the multiple output ends; the controller communication module is configured to output, according to received light-on signal and light-off signal, control signals by means of the multiple output ends to control the on and off of the multiple switch circuits. On the basis of the solution provided in the present invention, the multiple switch load circuits connected in parallel operate independently, thereby avoiding streaming.

Description

Single live wire electronic switch Technical field

The invention relates to the technical field of lighting, in particular to a single live wire electronic switch.

Background technique

With the advancement of intelligence in the field of lighting, more and more wireless control and human-machine interfaces are being used. Among them, the wall wireless control panel is a popular controller for home and commercial lighting. Compared with the traditional wall switch, the wall wireless control panel has the advantages of convenient operation and long life. More and more buildings are replacing traditional wall switches with wall-mounted wireless control panels.

However, in the actual replacement, it is found that the current wall wireless control panels are all powered by two wires, while the traditional wall switches are all single-wire connection. The user has to rewire in order to replace, which is a large project for the already renovated room, and the cost is relatively high, thus limiting the application of the wireless wall control panel.

In order to be able to easily replace the traditional wall switch, the single live wire power technology is very important. In the prior art, there is a way to connect a pair of transistors in the circuit to obtain power, but the disadvantage of this solution is that only a single-way switch can be designed. If it is multiple, it will cause current flow and cannot realize the single-way switch. control.

Summary of the invention

In view of the above problems, the present invention has been proposed in order to provide a single live wire electronic switch that overcomes the above problems or at least partially solves the above problems.

According to an aspect of the present invention, a single live wire electronic switch is provided, which includes: a controller communication module and a multi-channel switch load circuit in parallel;

The switch load circuit includes a switch circuit and a load connected in series with the commercial power;

The controller communication module includes a plurality of output terminals, the controller communication module is respectively connected to the multiple circuits of the switch circuit through the plurality of output terminals, and the controller communication module is configured to receive the light-on signal according to the received And a light-off signal, controlling the on and off of multiple switch circuits through multiple output control signals from the output terminals.

Optionally, the single live wire electronic switch further includes an AC-DC power supply and a power-drawing circuit;

The power-drawing circuit is connected to the plurality of switch circuits and the controller communication module, and when the plurality of switch circuits are all turned on, the power-drawing circuit supplies power to the controller communication module;

The AC-DC power supply is connected to the mains, multiple loads of the switch load circuit, and the controller communication module. When at least one of the switch circuits is turned off, the AC-DC power supply is used The controller communication module supplies power.

Optionally, when the controller communication module receives a light-on signal of the switch load circuit, the output terminal corresponding to the switch circuit of the switch load circuit outputs a high level to control the switch circuit to conduct, The load connected to the switch circuit works;

When the controller communication module receives the light-off signal of the switch load circuit, the output terminal corresponding to the switch circuit of the switch load circuit outputs a low level to control the switch circuit to turn off, and the switch circuit Load rest.

Optionally, the power extraction circuit includes an energy storage element, wherein,

When all the switch circuits are turned on, the power supply circuit supplies power to the controller communication module through the energy storage element;

When the electrical energy of the energy storage element is lower than the minimum working threshold, the power extraction circuit connects to the commercial power through multiple paths of the switch circuit to perform electrical energy supplement, and when the electrical energy of the energy storage element reaches the normal working threshold, Power the communication module of the controller again.

Optionally, the switch circuit includes a first switch tube, a controllable switch circuit, and a second switch tube;

The first switch tube and the second switch tube are field effect tubes, and the source electrode of the first switch tube is connected to the source electrode of the second switch tube and the controllable switch circuit, respectively. The grid of a switch tube is connected to the power-drawing circuit, and the drain of the first switch tube is connected to the commercial power;

One end of the controllable switch circuit is connected to the sources of the first switch tube and the second switch tube, and the other end of the controllable switch circuit is connected to an output end of the controller communication module ;

The source electrode of the second switch tube is connected to the source electrode of the first switch tube and the controllable switch circuit respectively, the gate of the second switch tube is connected to the power extraction circuit, and the second The drain of the switch tube is connected to the load, and the load is connected to the AC-DC power supply;

When the controller communication module outputs a high level through an output terminal, the first switch tube, the controllable switch circuit, and the second switch tube of the switch circuit corresponding to the output terminal are turned on, and the Load work

When the controller communication module outputs a low level through the output terminal, the first switch tube, the controllable switch circuit, and the second switch tube of the switch circuit corresponding to the output terminal are turned off, and the load connected to the switch circuit rests .

Optionally, the switch circuit further includes a first diode and a second diode;

The anode of the first diode is connected to the mains and the drain of the first switch respectively, the cathode of the first diode and the cathode of the second diode, the Electrical circuit connection;

The anode of the second diode is connected to the drain of the second switch tube and the load, respectively, and the cathode of the second diode is connected to the cathode of the first diode, respectively. Electrical circuit connection;

When all the switch circuits are turned on, the power supply circuit supplies power to the controller communication module through the energy storage element. When the energy of the energy storage element is lower than the minimum working threshold, the The power supply circuit controls all the first switch tubes and the second switch tubes of the multi-channel switch circuit to be turned off, and the first diode and the second secondary tube of the multi-channel switch circuit are connected to the commercial power. The energy storage element supplements the electric energy. When the electric energy of the energy storage element reaches the normal working threshold, the power supply circuit controls all the first switch tubes and the second switch tubes of the multiple switching circuits to be turned on.

Optionally, the controllable switch circuit includes a first resistor, a second resistor, and a fifth switch tube;

The fifth switching tube is a field effect tube, and one end of the first resistor is connected to the source of the first switching tube, the source of the fifth switching tube, and the source of the second switching tube, The other end of the first resistor is connected to the grid of the fifth switch tube and the second resistor;

The source of the fifth switch is connected to the source of the first switch, the source of the second switch, and the first resistor, and the gate of the fifth switch is connected to the first A resistor, the second resistor is connected, and the drain of the fifth switch tube is grounded;

One end of the second resistor is connected to the first resistor and the gate of the fifth switch tube, and the other end of the second resistor is connected to an output end of the controller communication module;

When the controller communication module outputs a high level through an output terminal, the fifth switch corresponding to the output terminal is turned on, and when the controller communication module outputs a low level through the output terminal, the output The fifth switch corresponding to the terminal is turned off.

Optionally, the single live wire electronic switch further includes:

The sensor is adapted to send a light-on signal or a light-off signal to the controller communication module in response to an external trigger.

The invention provides a single live wire electronic switch, which includes a controller communication module and a multi-channel parallel switch load circuit. The switch load circuit includes a switch circuit and a load connected in series with the commercial power, and the controller communication module includes multiple output terminals. The communication module of the controller is connected to the multi-way switch circuit through a plurality of output terminals, and the controller communication module is configured to control the multi-channel switches through the output control signals of the plurality of output terminals according to the received light-on signal and the light-off signal. Turn on and turn off the circuit. Based on the solution provided by the present invention, multiple parallel switch load circuits can work independently without affecting each other, and there will be no current flow problems.

The above description is only an overview of the technical solutions of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification, and in order to make the above and other objects, features and advantages of the present invention more obvious and understandable The specific embodiments of the present invention are listed below.

According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will understand more the above and other objects, advantages, and features of the present invention.

BRIEF DESCRIPTION

Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary but non-limiting manner with reference to the drawings. The same reference numerals in the drawings indicate the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

Figure 1 is a structural block diagram of a two-wire power supply control panel;

Figure 2 is a wiring diagram of a traditional wall switch;

Figure 3 is a diagram of the structure of a traditional single firewire electronic switch;

4 is a structural diagram of a single live wire electronic switch of a single transistor switch in the prior art;

5 is a circuit diagram of a single live wire electronic switch according to an embodiment of the present invention.

detailed description

Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

Figure 1 is a structural block diagram of a two-wire power supply control panel. As shown in Figure 1, it consists of a sensor, controller, wireless module, and power supply. The sensor can usually be a touch button. When the sensor is triggered, the trigger signal is transmitted to the controller, and the controller generates a corresponding control signal according to the trigger signal, and sends the control signal to the lamp through the wireless module, so that the lamp enters the corresponding State, such as controlling on, off, or dimming lights, etc. However, this control panel requires a two-wire (fire and neutral) power supply. The power supply converts the line voltage to a suitable voltage to supply power to the controller and other parts. The control panel and the lamp are connected in parallel.

Figure 2 is the wiring diagram of the traditional wall switch. As shown in Figure 2, the traditional wall switch and the lamp are connected in series and only connected on the live line. If a control panel powered by two wires is used to replace the traditional wall switch Rewiring is required, limiting the use of the control panel. In order to facilitate the replacement of traditional wall switches, the single-fire wire power technology becomes more and more important. Fig. 3 is a diagram of the structure of a traditional single firewire electronic switch, which includes an AC-DC power supply, a controller communication module, a relay, and also includes a light-on and power-off circuit and a switch tube S1. In the traditional single live wire power supply, the above devices can be used to achieve regular power supply or constant voltage power supply. The principle is that when the light is turned off, the relay is disconnected, and the AC-DC power supply converts the 220V voltage to low voltage for control. Power supply for the controller and communication module. When the light is turned on, the relay is closed. The light-on and power-on circuit is turned on and off by controlling the switch tube S1 to supply power to the controller communication module. The disadvantage of turning on and off through the relay control circuit is that the price is often expensive and the volume is large. The sound, the switch is limited by the life, and the zero-potential switch cannot be performed, and if it is a multi-way switch, the corresponding relay needs to be added.

An alternative is to use transistors to achieve the function of the relay. 4 is a structural diagram of a single live wire electronic switch of a single transistor switch in the prior art. As shown in Figure 4, it uses a pair of transistors to achieve the same function. However, the disadvantage of this solution is that it can only design a single-way switch. If it is a multi-way, it will cause current flow and cannot control the multi-way switch.

In order to solve the above problems, the present invention provides a single live wire electronic switch. 5 is a circuit diagram of a single live wire electronic switch according to an embodiment of the present invention. As shown in FIG. 5, the single live wire electronic switch includes a first switch load circuit 1 and a second switch connected in parallel with the first switch load circuit 1 The load circuit 2 and the controller communication module 3, wherein the first switch load circuit 1 includes a first switch circuit 1a and a first load L1, the first switch circuit 1a and the first load L1 are connected in series at both ends of the commercial power, the second The switch load circuit 2 has the same basic structure as the first switch load circuit 1 and includes a second switch circuit 2a and a second load L2. The second switch circuit 2a and the second load L2 are connected in series at both ends of the mains, and the controller communication module The first output terminal Dr1 is connected to the first switch circuit 1a, and the second output terminal Dr2 is connected to the second switch circuit 2a, and is used to pass the first output terminal Dr1, second according to the received light-on signal and light-off signal The output terminal Dr2 outputs a control signal to control the on and off of the first switch circuit 1a and the second switch circuit 2a.

Fig. 5 only shows the structure of the two-way switch load circuit as an example, and the actual situation also includes the case of more than two parallel switch load circuits. When there are more switch load circuits, each switch load circuit uses The circuit structure is the same as that of the first switch load circuit 1 and the second switch load circuit 2 in this embodiment, and each switch load circuit is connected in parallel, and the present invention will not list them one by one here.

Based on the single live wire electronic switch proposed by the present invention, the control of the multi-circuit switch load circuit can be achieved, and the multi-circuit switch load circuit works independently without affecting each other, and there will be no problem of current flow.

In the actual working process, when the controller communication module 3 receives the light-on signal of the first switch load circuit 1, the controller communication module outputs a high level through the first output terminal Dr1, the first switch circuit 1a is turned on, and the first The load L1 works. When the controller communication module receives the light-off signal of the first switch load circuit 1, the controller communication module 3 outputs a low level through the first output terminal Dr1, the first switch circuit 1a is turned off, and the first load L1 breaks; when the controller communication module receives the light-on signal of the second switch load circuit 2, the controller communication module 3 outputs a high level through the second output terminal Dr2, the second switch circuit 2a conducts, and the second load L2 In operation, when the controller communication module 3 receives the light-off signal of the second switch load circuit 2, the controller communication module outputs a low level through the second output terminal Dr2, the second switch circuit 2a is turned off, and the second load L2 rests .

The above single live wire electronic switch further includes a power taking circuit 4 and an AC-DC power supply 5, wherein one end of the power taking circuit 4 is connected to the first switch circuit 1a and the second switch circuit 2a respectively, and the other end of the power taking circuit 4 is connected to the control One end of the communication module 3 is connected, and the other end of the power supply circuit 4 is grounded. It is mainly used to supply power to the controller communication module 3 when the first switch circuit 1a and the second switch circuit 2a are both on; AC-DC power supply 5 Connected to the mains, the first load L1, the second load L2, and the controller communication module 3, the AC-DC power supply 5 is also grounded at one end, and is used when the first switching circuit 1a and / or the second switching circuit 2a is turned off , To power the controller communication module 3.

Among them, when both the first switch circuit 1a and the second switch circuit 2a are turned off, the main voltage of the power supply is concentrated at both ends of the first switch circuit 1a and the second switch circuit 2a due to the large input impedance, so the controller communicates The energy of the module comes from the AC-DC power supply 5.

Since the working principle of the power extraction circuit 4 is to work only when the output voltage of the rear end drops to a certain threshold, if the AC-DC power supply 5 is still working, the power extraction circuit 4 basically does not work, so when the first switching circuit 1a Or when the second switch circuit 2a is turned on, the energy of the controller communication module 3 mainly comes from the AC-DC power supply 5.

Specifically, in this embodiment, the power extraction circuit 4 includes an energy storage element, and when both the first switch circuit 1a and the second switch circuit 2a are turned on, the power extraction circuit 4 supplies power to the controller communication module 3 through the energy storage element , When the energy of the energy storage element is lower than the minimum working threshold, the power supply circuit 4 connects the power supply through the first switch circuit 1a and the second switch circuit 2a to supplement the energy. When the energy of the energy storage element reaches the normal working threshold, it is again The controller communication module 3 supplies power.

It should be noted that when both the first switch circuit 1a and the second switch circuit 2a are turned on, since the power supply voltage is concentrated across the first load L1 and the second load L2, the energy of the controller communication module 3 is mainly From the energy storage element in the power extraction circuit 4, when the energy of the energy storage element is lower than the minimum operating threshold, the power extraction circuit 4 will connect the power supply through the first switching circuit 1a and the second switching circuit 2a to supplement the energy, when When the energy of the energy storage element reaches the normal threshold, the controller communication module 3 is powered again. This process is very rapid, so it will not affect the operation of the first load L1 and the second load L2.

Specifically, the first switch circuit 1a includes a first switch tube S1, a first controllable switch circuit 1aa, and a second switch tube S2, where the first switch tube S1 and the second switch tube S2 are field effect tubes, and the first switch The source of the tube S1 is respectively connected to the second switch tube S2 and the first controllable switch circuit 1aa, the gate of the first switch tube S1 is connected to the power taking circuit 4, and the drain of the first switch tube S1 is connected to one end of the commercial power , One end of the first controllable switch circuit 1aa is respectively connected to the sources of the first switch tube S1 and the second switch tube S2, one end is connected to the first output terminal Dr1 of the controller communication module, one end is grounded, and the second switch The source of the tube S2 is respectively connected to the source of the first switch tube S1 and the first controllable switch circuit 1aa, the gate of the second switch tube S2 is connected to the power taking circuit 4, and the drain of the second switch tube S2 is connected to the first A load L1 is connected, and the first load L1 is connected to the AC-DC power supply 5. When the controller communication module receives the light-on signal of the first switch load circuit 1, the first output terminal Dr1 outputs a high level, the first controllable switch circuit 1aa, the first switch tube S1, and the second switch tube S2 are turned on , The first load L1 works; when the controller communication module 3 receives the light-off signal of the first switch load circuit 1, the first output Dr1 outputs a low level, the first controllable switch circuit 1aa, the first switch tube S1 2. The second switch S2 is turned off, and the first load L1 is at rest.

The second switch circuit 2a includes a third switch tube S3, a second controllable switch circuit 2aa, and a fourth switch tube S4, where the third switch tube S3 and the fourth switch tube S4 are field effect tubes, and the third switch tube S3 The source electrode is respectively connected to the fourth switch tube S4 and the second controllable switch circuit 2aa, the gate of the third switch tube S3 is connected to the power supply circuit 4, the drain of the third switch tube S3 is connected to the commercial power, and the second switch One end of the control switch circuit 2aa is connected to the sources of the third switch tube S3 and the fourth switch tube S4, one end is connected to the second output terminal Dr2 of the controller communication module 3, one end is grounded, and the fourth switch tube S4 The source is respectively connected to the source of the third switch S3 and the second controllable switch circuit 2aa, the gate of the fourth switch S4 is connected to the power extraction circuit 4, the drain of the fourth switch S4 is connected to the second load L2 The second load L2 is connected to the AC-DC power supply 5. When the controller communication module 3 receives the light-on signal of the second switch load circuit 2, the second output terminal Dr2 outputs a high level, the second controllable switch circuit 2aa, the third switch tube S3, and the fourth switch tube S4 conduct On, the second load L2 works; when the controller communication module 3 receives the light-off signal of the second switch load circuit 2, the second output Dr2 outputs a low level, the second controllable switch circuit 2aa, the third switch tube S3, the fourth switch S4 is turned off, and the second load L2 is at rest.

The design of the first controllable switch circuit 1aa and the second controllable switch circuit 2aa is such that when the first switch circuit 1a is turned on, the second controllable switch circuit 2aa of the second switch circuit 2a is turned off, so that the first switch The current of the circuit 1a does not flow to the second switch circuit 2a; when the second switch circuit 2a is turned on, the first controllable switch circuit 1aa is turned off, and the current of the second switch circuit 2a does not flow to the second A switch circuit 1a.

The first switch tube S1, the second switch tube S2, the third switch tube S3, and the fourth switch tube S4 may optionally include a triode, which is not specifically limited in the present invention.

Specifically, the first switch circuit 1a further includes a first diode D1, a second diode D2, and the second switch circuit 2a further includes a third diode, a fourth diode D4, and a first diode The anode of D1 is connected to the mains and the drain of the first switching tube S1 respectively, the cathode of the first diode D1 is connected to the cathode of the second diode D2 and the power extraction circuit 4, and the anode of the second diode D2 Connected to the drains of the first load L1 and the second switching tube S2 respectively, the negative electrode of the second diode D2 is connected to the negative electrode of the first diode D1 and the power extraction circuit 4, and the positive electrode of the third diode D3 Connected to the mains and the drain of the third switching tube S3 respectively, the negative electrode of the third diode D3 is connected to the negative electrode of the fourth diode D4 and the power taking circuit 4, the positive electrode of the fourth diode D4 is connected to The other end of the second load L2 is connected to the drain of the second switch S2, and the negative electrode of the fourth diode D4 is connected to the negative electrode of the third diode D3 and the power taking circuit 4, respectively.

In this embodiment, when both the first switch circuit 1a and the second switch circuit 2a are turned on, when the energy of the energy storage element inside the power draw circuit 4 is lower than the minimum operating threshold, the power draw circuit 4 will control the first One switching tube S1, the second switching tube S2 is turned off, the third switching tube S3, and the fourth switching tube S4 are all turned off. The first diode D1, the second diode D2, the third diode D3, The fourth diode D4 is connected to the power supply to supplement the energy for the energy storage element. When the energy of the energy storage element reaches the normal working threshold, the power circuit 4 will control the first switch tube S1, the second switch tube to turn off S2, the third The switch S3 and the fourth switch S4 are all turned on.

The first controllable switch circuit 1aa includes a first resistor R1, a second resistor R2, and a fifth switch S5, wherein the fifth switch S5 is preferably a field effect transistor, and one end of the first resistor R1 is connected to the first switch respectively The source of S1, the source of the second switch S2, and the source of the fifth switch S5 are connected. The other end of the first resistor R1 is connected to the gate of the switch S5 and the second resistor R2, respectively. The fifth switch The source of S5 is respectively connected to the first resistor R1, the source of the first switch S1, and the source of the second switch S2. The gate of the switch S5 is connected to the first resistor R1, the second resistor R2, respectively. The drain of the five switch tube S5 is grounded, one end of the second resistor R2 is connected to the first resistor R1, the gate of the fifth switch tube S5, and the other end of the second resistor R2 is connected to the first output end of the controller communication module 3 Dr1 is connected, when the controller communication module 3 outputs a high level through the first output terminal Dr1, the fifth switch S5 is turned on, and when the controller communication module 3 outputs a low level through the first output terminal Dr1, the fifth switch S5 is turned off Break.

The second controllable switch circuit 2aa includes a third resistor R3, a fourth resistor R4, and a sixth switch S6, wherein the sixth switch S6 is also preferably a field effect transistor, and one end of the third resistor R3 is connected to the third switch The source of the tube S3, the source of the fourth switching tube S4, and the source of the sixth switching tube S6 are connected, and the other end of the third resistor R3 is connected to the gate of the sixth switching tube S6 and the fourth resistor R4, respectively. The sources of the six switching tubes S6 are respectively connected to the sources of the third switching tube S3, the third resistor R3, and the sources of the fourth switching tube S4, and the gates of the sixth switching tube S6 are respectively connected to the third resistors R3 and the fourth The resistor R4 is connected, the drain of the sixth switch S6 is grounded, one end of the fourth resistor R4 is connected to the third resistor R3 and the gate of the sixth switch S6, and the other end of the fourth resistor R4 is connected to the controller communication module 3 The second output terminal Dr2 is connected, when the controller communication module 3 outputs a high level through the second output terminal Dr2, the sixth switch tube S6 is turned on, and when the controller communication module 3 outputs a low level through the second output terminal Dr2, The sixth switch S6 is turned off.

In addition, the single live wire electronic switch of this embodiment further includes: a sensor, adapted to respond to an external trigger and send a light-on signal or a light-off signal to the controller communication module 3, and the controller communication module 3 according to the received The light signal or the light off signal controls the on and off of the switch load circuit. Of course, the sensor of this embodiment can also receive other signals, such as dimming signals.

Based on the single live wire electronic switch provided by the present invention, a first controllable switch circuit is added between the first switch tube and the second switch tube of the first switch circuit, and the third switch tube and the fourth switch of the second switch circuit A second controllable switch circuit is added between the tubes. When the first switch circuit is turned on, the second controllable switch circuit is turned off. When the second switch circuit is turned on, the first controllable switch circuit is turned off, effectively preventing The current flow of the parallel switch circuit is ensured to ensure the normal operation of the load.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: Within the spirit and principle of the present invention, it can still modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not deviate from the corresponding technical solutions The protection scope of the present invention.

Claims (8)

1. A single live wire electronic switch, which includes: a controller communication module and a multi-channel parallel switch load circuit;

   The switch load circuit includes a switch circuit and a load connected in series with the commercial power;

   The controller communication module includes a plurality of output terminals, the controller communication module is respectively connected to the multiple circuits of the switch circuit through the plurality of output terminals, and the controller communication module is configured to receive the light-on signal according to the received And a light-off signal, controlling the on and off of multiple switch circuits through multiple output control signals from the output terminals.
2. The single live wire electronic switch according to claim 1, further comprising an AC-DC power supply and a power supply circuit;

   The power-drawing circuit is connected to the plurality of switch circuits and the controller communication module, and when the plurality of switch circuits are all turned on, the power-drawing circuit supplies power to the controller communication module;

   The AC-DC power supply is connected to the mains, multiple loads of the switch load circuit, and the controller communication module. When at least one of the switch circuits is turned off, the AC-DC power supply is used The controller communication module supplies power.
3. The single live wire electronic switch according to claim 1, wherein

   When the controller communication module receives a light-on signal of the switch load circuit, the output terminal corresponding to the switch circuit of the switch load circuit outputs a high level to control the switch circuit to be turned on and the switch circuit Connected load work;

   When the controller communication module receives the light-off signal of the switch load circuit, the output terminal corresponding to the switch circuit of the switch load circuit outputs a low level to control the switch circuit to turn off, and the switch circuit connected to the switch circuit Load rest.
4. The single live wire electronic switch according to claim 2, wherein the power taking circuit includes an energy storage element, wherein,

   When all the switch circuits are turned on, the power supply circuit supplies power to the controller communication module through the energy storage element;

   When the electrical energy of the energy storage element is lower than the minimum working threshold, the power extraction circuit connects to the commercial power through multiple paths of the switch circuit to perform electrical energy supplement, and when the electrical energy of the energy storage element reaches the normal working threshold Power the communication module of the controller again.
5. The single live wire electronic switch according to claim 2, wherein the switch circuit includes a first switch tube, a controllable switch circuit, and a second switch tube;

   The first switch tube and the second switch tube are field effect tubes, and the source electrode of the first switch tube is connected to the source electrode of the second switch tube and the controllable switch circuit, respectively. The grid of a switch tube is connected to the power-drawing circuit, and the drain of the first switch tube is connected to the commercial power;

   One end of the controllable switch circuit is connected to the sources of the first switch tube and the second switch tube, and the other end of the controllable switch circuit is connected to an output end of the controller communication module ;

   The source electrode of the second switch tube is connected to the source electrode of the first switch tube and the controllable switch circuit respectively, the gate of the second switch tube is connected to the power extraction circuit, and the second The drain of the switch tube is connected to the load, and the load is connected to the AC-DC power supply;

   When the controller communication module outputs a high level through an output terminal, the first switch tube, the controllable switch circuit, and the second switch tube of the switch circuit corresponding to the output terminal are turned on, and the Load work

   When the controller communication module outputs a low level through the output terminal, the first switch tube, the controllable switch circuit, and the second switch tube of the switch circuit corresponding to the output terminal are turned off, and the load connected to the switch circuit rests .
6. The single live wire electronic switch according to claim 5, wherein the switch circuit further comprises a first diode and a second diode;

   The anode of the first diode is connected to the mains and the drain of the first switch respectively, the cathode of the first diode and the cathode of the second diode, the Electrical circuit connection;

   The anode of the second diode is connected to the drain of the second switch tube and the load, respectively, and the cathode of the second diode is connected to the cathode of the first diode, respectively. Electrical circuit connection;

   When all the switch circuits are turned on, the power supply circuit supplies power to the controller communication module through the energy storage element. When the energy of the energy storage element is lower than the minimum working threshold, the The power supply circuit controls all the first switch tubes and the second switch tubes of the multi-channel switch circuit to be turned off, and the first diode and the second secondary tube of the multi-channel switch circuit are connected to the commercial power. The energy storage element supplements the electric energy. When the electric energy of the energy storage element reaches the normal working threshold, the power supply circuit controls all the first switch tubes and the second switch tubes of the multiple switching circuits to be turned on.
7. The single live wire electronic switch according to claim 5, wherein the controllable switch circuit includes a first resistor, a second resistor, and a fifth switch tube;

   The fifth switching tube is a field effect tube, and one end of the first resistor is connected to the source of the first switching tube, the source of the fifth switching tube, and the source of the second switching tube, The other end of the first resistor is connected to the grid of the fifth switch tube and the second resistor;

   The source of the fifth switch is connected to the source of the first switch, the source of the second switch, and the first resistor, and the gate of the fifth switch is connected to the first A resistor, the second resistor is connected, and the drain of the fifth switch tube is grounded;

   One end of the second resistor is connected to the first resistor and the gate of the fifth switch tube, and the other end of the second resistor is connected to an output end of the controller communication module;

   When the controller communication module outputs a high level through an output terminal, the fifth switch corresponding to the output terminal is turned on, and when the controller communication module outputs a low level through the output terminal, the output The fifth switch corresponding to the terminal is turned off.
8. The single live wire electronic switch according to any one of claims 1-7, further comprising:

   The sensor is adapted to send a light-on signal or a light-off signal to the controller communication module in response to an external trigger.

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