CN215009651U - On-state power taking circuit and single-live-wire power taking system - Google Patents
On-state power taking circuit and single-live-wire power taking system Download PDFInfo
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- CN215009651U CN215009651U CN202120626209.4U CN202120626209U CN215009651U CN 215009651 U CN215009651 U CN 215009651U CN 202120626209 U CN202120626209 U CN 202120626209U CN 215009651 U CN215009651 U CN 215009651U
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Abstract
The application provides an on-state power taking circuit and a single live wire power taking system, wherein the on-state power taking circuit comprises an optical coupler, a driving unit and a time delay unit, wherein the optical coupler comprises a light emitter and a light receiver; the driving unit is electrically connected with the light receiver, is in a charging state when power is taken in an off state, and is used for supplying power to the first load when power is taken in an on state; the delay unit is electrically connected with the driving unit and is used for prolonging the charging time of the driving unit. The on-state power taking circuit prolongs the charging time of the driving unit through the delay unit, and ensures that the driving unit stores sufficient electric energy to supply power to the first load, thereby ensuring that the on-state power taking circuit has sufficient power taking, and better relieving the problem that the on-state power taking circuit cannot normally work due to insufficient power taking of the single-fire switch in the prior art.
Description
Technical Field
The application relates to a single live wire gets the electric field, particularly, relates to an on-state is got electric circuit and is got electric system with single live wire.
Background
As intelligence has become more prevalent, the on-off control of existing household lights has shifted from traditional mechanical switches to smart switches. Because traditional family is single fire wiring mostly, so produced single live wire intelligence switch, can need not additionally to install the wiring, realized the normal position replacement of single live wire overall arrangement.
Because single live wire intelligence switch itself need consume certain electric current, and single live wire switch standby electricity is supplied power for the control circuit of switch through the electric current of load, even the higher single fire of efficiency gets the electric circuit, also has the problem of getting the electricity inadequately, mainly because the LED lamp is the mainstream now, carries out single fire to the LED lamp that only 3W and gets the electricity, often can only get the electric current of several hundred microamperes.
Therefore, a structure is needed to solve the problem that the single hot switch in the prior art cannot work normally due to insufficient power supply.
SUMMERY OF THE UTILITY MODEL
The application mainly aims to provide an on-state power taking circuit and a single live wire power taking system, so that the problem that the single live wire switch in the prior art cannot work normally due to insufficient power taking is solved.
In order to achieve the object, according to one aspect of the present application, there is provided an on-state power taking circuit including an optical coupler, a driving unit, and a delay unit, wherein the optical coupler includes a light emitter and a light receiver; the driving unit is electrically connected with the light receiver, is in a charging state when power is taken in an off state, and is used for supplying power to a first load when power is taken in an on state; the delay unit is electrically connected with the driving unit and is used for prolonging the charging time of the driving unit.
Optionally, the driving unit includes a first switching module and a first energy storage module, where the first switching module has a first end, a second end, and a third end, the first end of the first switching module is electrically connected to the first end of the light receptor, the second end of the first switching module is electrically connected to the second end of the light receptor, and the second end of the first switching module is further configured to be electrically connected to a live wire; the first end of the first energy storage module is electrically connected with the second end of the first switch module, the second end of the first energy storage module is electrically connected with the third end of the first switch module, the second end of the first energy storage module is also used for being connected with the first load, and the second end of the first energy storage module is also used for being electrically connected with a zero line through the second load.
Optionally, the delay unit includes a second switch module and a second energy storage module, where the second switch module has a first end, a second end, and a third end, the first end of the second switch module is electrically connected to the third end of the first switch module, the second end of the second switch module is configured to be electrically connected to the live wire, and the third end of the second switch module is configured to be electrically connected to the neutral wire through the second load; the first end of the second energy storage module is used for being electrically connected with the zero line through the second load, and the second end of the second energy storage module is electrically connected with the third end of the first switch module.
Optionally, the delay unit further includes a voltage stabilizing module, a first end of the voltage stabilizing module is electrically connected to the first end of the second switch module, and a second end of the voltage stabilizing module is electrically connected to the second end of the first energy storage module.
Optionally, the circuit further includes a protection unit, the protection unit is configured to block a surge pulse, a first end of the protection unit is configured to be electrically connected to the live wire, and a second end of the protection unit is electrically connected to the first end of the second switch module.
Optionally, the circuit further includes a rectifier bridge, a first end of the rectifier bridge is used for being electrically connected to the live wire, a second end of the rectifier bridge is electrically connected to the second end of the first energy storage module, a third end of the rectifier bridge is electrically connected to the first end of the second switch module, and a fourth end of the rectifier bridge is electrically connected to the second end of the light receiver, the second end of the first switch module, and the first end of the first energy storage module, respectively.
Optionally, the circuit further includes a first voltage division unit and a second voltage division unit, wherein a first end of the first voltage division unit is electrically connected to a fourth end of the rectifier bridge and a second end of the first switch module, respectively; the first end of the second voltage division unit is electrically connected with the second end of the first voltage division unit, and the second end of the second voltage division unit is electrically connected with the second end of the light receiver and the first end of the first energy storage module respectively.
Optionally, the circuit further includes a switching unit and a voltage stabilizing unit, wherein a first end of the switching unit is electrically connected to a third end of the first switching module; the first end of the voltage stabilizing unit is electrically connected with the second end of the switch unit, and the second end of the voltage stabilizing unit is electrically connected with the second end of the first energy storage module.
Optionally, the circuit further includes a third voltage division unit, a first end of the third voltage division unit is electrically connected to the third end of the first switch module, and a second end of the third voltage division unit is electrically connected to the second end of the first energy storage module.
In order to achieve the purpose, according to another aspect of the application, there is also provided a single live wire power taking system, including a second load and an on-state power taking circuit, wherein the second load is configured to be electrically connected to a neutral wire; the on-state electricity-taking circuit is any one of the circuits, a first end of the on-state electricity-taking circuit is used for being electrically connected with a live wire, and a second end of the on-state electricity-taking circuit is electrically connected with the second load.
Optionally, the system further includes an off-state power taking circuit, a first end of the off-state power taking circuit is used to be electrically connected to the live wire, and a second end of the off-state power taking circuit is electrically connected to the second load.
Optionally, the system further includes an overload protection circuit, a voltage conversion circuit, and a micro control unit, wherein a first end of the overload protection circuit is electrically connected to the live wire, and a second end of the overload protection circuit is electrically connected to the on-state power-taking circuit and the off-state power-taking circuit, respectively; the first end of the voltage conversion circuit is electrically connected with the third end of the off-state electricity taking circuit and the third end of the on-state electricity taking circuit respectively, and the second end of the voltage conversion circuit is used for being connected with a first load; the micro control unit is electrically connected with a light emitter of the on-state power taking circuit and is used for controlling the on-off state of the light emitter.
The on-state power taking circuit comprises an optical coupler, a driving unit and a time delay unit, wherein the driving unit is electrically connected with a light receiver, the driving unit is in a charging state when the off-state power taking is carried out, and the driving unit supplies power to a first load when the on-state power taking is carried out; the time delay unit is electrically connected with the driving unit and is used for prolonging the charging time of the determining unit. This application open-state is got electric circuit, through delay unit extension drive unit's charge time has guaranteed drive unit stores sufficient electric energy and gives first load power supply, thereby guaranteed open-state is got electric circuit's the getting comparatively sufficient, has alleviated the problem that the not enough normal work of single fire switch got the electricity in the prior art betterly.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
fig. 1 shows a schematic structural diagram of an on-state power taking circuit according to an embodiment of the present application;
FIG. 2 illustrates a schematic diagram of an on-state power-taking circuit according to a specific embodiment of the present application;
fig. 3 shows a schematic structural diagram of a single live wire power taking system according to an embodiment of the present application;
fig. 4 shows a schematic structural diagram of an off-state power-taking circuit according to an embodiment of the present application.
Wherein the figures include the following reference numerals:
10. a drive unit; 20. a delay unit; 30. an on-state power taking circuit; 40. a second load; 50. an off state power taking circuit; 60. a communication module; 70. an LED indicator light; 80. panel keys; 90. a micro control unit; 100. a zero-crossing detection circuit; 101. an overload protection circuit; 102. a voltage conversion circuit.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
As described in the background art, the single live wire switch in the prior art cannot normally work due to insufficient power supply, and in order to solve the above problem, the present application provides an on-state power supply circuit and a single live wire power supply system.
According to an exemplary embodiment of the present application, as shown in fig. 1, there is provided an on-state power taking circuit, including an optical coupler, a driving unit 10 and a delay unit 20, wherein the optical coupler includes a light emitter and a light receiver U15; the driving unit 10 is electrically connected to the light receptor U15, and when the driving unit 10 is in an off state, the driving unit 10 is in a charging state, and when the driving unit 10 is in an on state, the driving unit is used for supplying power to a first load; the delay unit 20 is electrically connected to the driving unit 10, and the delay unit 20 is configured to extend a charging time of the driving unit 10.
The on-state power taking circuit comprises an optical coupler, a driving unit and a time delay unit, wherein the driving unit is electrically connected with the light receiver, the driving unit is in a charging state when the on-state power taking is carried out, and the driving unit supplies power to a first load when the on-state power taking is carried out; the delay unit is electrically connected with the driving unit and is used for prolonging the charging time of the determining unit. The above-mentioned power circuit is got to state of opening of this application, the charge time through above-mentioned delay unit extension above-mentioned drive unit has guaranteed that above-mentioned drive unit stores sufficient electric energy and has given above-mentioned first load power supply to guaranteed that above-mentioned power circuit is got to state of opening is got comparatively sufficient, has alleviated the problem that the not enough normal work of simplex switch got the electricity in the prior art betterly.
According to a specific embodiment of the present application, as shown in fig. 2, the driving unit includes a first switching module Q9 and a first energy storage module C19, wherein the first switching module Q9 has a first end, a second end and a third end, the first end of the first switching module Q9 is electrically connected to the first end of the light receiver U15, the second end of the first switching module Q9 is electrically connected to the second end of the light receiver U15, and the second end of the first switching module Q9 is further used for electrically connecting to a live wire; a first end of the first energy storage module C19 is electrically connected to a second end of the first switch module Q9, a second end of the first energy storage module C19 is electrically connected to a third end of the first switch module Q9, a second end of the first energy storage module C19 is further configured to be connected to the first load, and a second end of the first energy storage module C19 is further configured to be electrically connected to a neutral line through a second load. When the power is taken in an off state, the first switch module is in a disconnected state, and the live wire, the first energy storage module, the second load and the zero line form a loop to charge the first energy storage module; when the power is taken in the on state, the light emitter is conducted to emit light, the light receiver is conducted, the first switch module is in the on state, and the first energy storage module discharges to supply power to the first load.
According to another specific embodiment of the present application, as shown in fig. 2, the delay unit includes a second switch module SR3 and a second energy storage module C14, wherein the second switch module SR3 has a first end, a second end and a third end, the first end of the second switch module SR3 is electrically connected to the third end of the first switch module Q9, the second end of the second switch module SR3 is electrically connected to the live wire, and the third end of the second switch module SR3 is electrically connected to the neutral wire through the second load; a first end of the second energy storage module C14 is electrically connected to the neutral line via the second load, and a second end of the second energy storage module C14 is electrically connected to the third end of the first switching module Q9. The second switch module is disconnected when the first switch module is in a disconnected state, current flows into the second energy storage module, the second switch module and the first load when the first switch module is in a closed state, the duration time of the disconnected state of the second switch module is prolonged through the second energy storage module, the second switch module cannot be immediately switched on, the first energy storage module cannot immediately supply power to the first load, the charging time of the first energy storage module is further prolonged, the first energy storage module can store sufficient electric energy, and the power taking of the on-state power taking circuit is further ensured to be sufficient.
In another specific embodiment of the present application, as shown in fig. 2, the delay unit further includes a voltage stabilizing module ZD12, a first end of the voltage stabilizing module ZD12 is electrically connected to a first end of the second switch module SR3, and a second end of the voltage stabilizing module ZD12 is electrically connected to a second end of the first energy storage module C19. The delay unit plays a voltage stabilizing state through the voltage stabilizing module.
In a specific embodiment, as shown in fig. 2, the ZD12 is a first zener diode, the first end of the ZD12 is an anode of the first zener diode ZD12, and the second end of the ZD12 is a cathode of the first zener diode ZD 12.
In order to ensure that the driving unit is not damaged when a lightning surge occurs, according to another specific embodiment of the present invention, as shown in fig. 2, the circuit further includes a protection unit D4, the protection unit D4 is configured to block a surge pulse, a first end of the protection unit D4 is configured to be electrically connected to the live line, and a second end of the protection unit D4 is electrically connected to a first end of the second switch module SR 3. Through above-mentioned protection unit, can restrain the harm of thunderbolt surge to above-mentioned drive unit effectively, guaranteed that above-mentioned on-state gets the security performance of electric circuit better.
In practical applications, a person skilled in the art may select any feasible device as the protection unit, and in a specific embodiment, the protection unit includes a transient diode. When two poles of the transient diode are impacted by reverse transient high energy, the transient diode can change the high impedance between the two poles into low impedance at a higher speed, absorb the surge power of thousands of watts and enable the voltage between the two poles to be at a preset value, thereby effectively protecting the driving unit.
In another specific embodiment of the present application, as shown in fig. 2, the protection unit D4 is a transient diode.
In another specific embodiment of the present invention, as shown in fig. 2, the circuit further includes a rectifier bridge DB3, a first end of the rectifier bridge DB3 is electrically connected to the live wire, a second end of the rectifier bridge DB3 is electrically connected to a second end of the first energy storage module, a third end of the rectifier bridge DB3 is electrically connected to a first end of the second switch module, and a fourth end of the rectifier bridge DB3 is electrically connected to a second end of the light receiver, a second end of the first switch module, and a first end of the first energy storage module, respectively.
According to another specific embodiment of the present application, as shown in fig. 2, the circuit further includes a first voltage dividing unit R50 and a second voltage dividing unit R12, wherein a first end of the first voltage dividing unit R50 is electrically connected to a fourth end of the rectifier bridge DB3 and a second end of the first switch module Q9, respectively; a first end of the second voltage divider R12 is electrically connected to a second end of the first voltage divider R50, and a second end of the second voltage divider R12 is electrically connected to a second end of the photodetector U15 and a first end of the first energy storage module C19, respectively.
In an actual application process, as shown in fig. 2, the first voltage dividing unit R50 is a first resistor, and the second voltage dividing unit R12 is a second resistor.
In another embodiment of the present application, as shown in fig. 2, the first switch module Q9 includes a triac, the second switch module SR3 includes a triac, and the second load is a low power lamp. The above-mentioned power circuit is got to the on-state of this application uses one-way silicon controlled rectifier drive bidirectional thyristor, can effectively reduce the consumption, improves the stroboscopic problem of second load, when having solved single live wire switch area multichannel second load simultaneously, the problem that wherein some way can extinguish automatically. And the on-off of the circuit is controlled by the unidirectional silicon controlled rectifier and the bidirectional silicon controlled rectifier, so that the response speed is high, the controllable and durable effects are achieved, the required driving current is small, the efficiency is high, the driving circuit is simple, the circuit is built by common discrete elements, and the cost is low.
In a more specific embodiment, as shown in fig. 2, the first switch module Q9 is a triac, the second switch module SR3 is a triac, the first energy storage module C19 is a first capacitor, and the second energy storage module C14 is a second capacitor.
In order to further ensure that the power supply of the on-state power supply circuit is sufficient, according to a specific embodiment of the present application, as shown in fig. 2, the circuit further includes a switch unit D10 and a voltage stabilizing unit ZD15, wherein a first end of the switch unit D10 is electrically connected to a third end of the first switch module Q9; a first terminal of the voltage stabilizing unit ZD15 is electrically connected to a second terminal of the switch unit D10, and a second terminal of the voltage stabilizing unit ZD15 is electrically connected to a second terminal of the first energy storage module C19. After the first switching module Q9 is turned on, the switching unit and the voltage stabilizing unit are turned on to charge the first energy storage module, and the on-state of the first switching module is maintained, thereby further ensuring that the first energy storage module can store sufficient electric energy.
In a specific embodiment of the present application, the switch unit is a first diode, and the voltage stabilizing unit is a second voltage stabilizing diode, but of course, the switch unit may also be other types of switch devices, and the voltage stabilizing unit may also be other suitable voltage stabilizing devices in the prior art.
In order to further ensure that the on-state power-taking circuit can sufficiently take power, in an actual application process, as shown in fig. 2, the circuit further includes a third voltage-dividing unit R51, a first end of the third voltage-dividing unit R51 is electrically connected to a third end of the first switch module Q9, and a second end of the third voltage-dividing unit R51 is electrically connected to a second end of the first energy storage module C19. After the first switch module Q9 is turned on, the third switch module is turned on to charge the first energy storage module, and the on state of the first switch module is maintained, thereby further ensuring that the first energy storage module can store sufficient electric energy.
In practical applications, the third voltage dividing unit may be any suitable voltage dividing device in the prior art, and in a specific embodiment, the third voltage dividing unit is a third resistor.
According to another specific embodiment of the present application, as shown in fig. 2, the circuit further includes a second diode D7, an anode of the second diode D7 is electrically connected to the rectifier bridge DR3, and a cathode of the second diode D7 is electrically connected to the power source Vin. The circuit further includes a fourth resistor R57 and a third capacitor C22, wherein a first end of the fourth resistor R57 is electrically connected to a first end of the first switch module Q9, a second end of the fourth resistor R57 is electrically connected to a second end of the first energy storage module C19, a first end of the third capacitor C22 is electrically connected to a first end of the first switch module Q9, and a second end of the third capacitor C22 is electrically connected to a second end of the first energy storage module C19. The circuit further includes a fifth resistor R66 and a sixth resistor R45, the photo detector U15 is electrically connected to the first end of the first switch module Q9 through the fifth resistor R66, the first end of the sixth resistor R45 is electrically connected to the cathode of the light emitter, and the second end of the sixth resistor R45 is electrically connected to the microcontroller.
In fig. 2, the on-state power-taking circuit is electrically connected to the live line through the LOAD1, and AGND represents electrically connected to the neutral line through the second LOAD.
According to another exemplary embodiment of the present application, there is also provided a single live wire power taking system, as shown in fig. 3, the single live wire power taking system includes a second load 40 and an on-state power taking circuit 30, where the second load 40 is configured to be electrically connected to a neutral wire; the on-state power circuit 30 is any one of the above circuits, a first terminal of the on-state power circuit 30 is electrically connected to a hot line, and a second terminal of the on-state power circuit 30 is electrically connected to the second load 40.
The single live wire power taking system comprises a second load and an on-state power taking circuit, wherein the on-state power taking circuit is any one of the circuits. Above-mentioned single live wire gets electric system, through the delay unit among the above-mentioned open state circuit of getting, the charge time of extension drive unit has guaranteed that drive unit stores sufficient electric energy and supplies power to it is comparatively sufficient to have guaranteed that above-mentioned open state gets electric circuit's the electricity of getting, has alleviated the problem that the not enough normal work of single live wire switch electricity of prior art is got to the better, has guaranteed the normal work of above-mentioned single live wire system of getting.
According to a specific embodiment of the present application, as shown in fig. 3, the system further includes an off-state power-taking circuit 50, a first terminal of the off-state power-taking circuit 50 is configured to be electrically connected to the hot wire, and a second terminal of the off-state power-taking circuit 50 is electrically connected to the second load 40. When the power is off, the system supplies power to the first load through the power-off circuit 50.
In an actual application process, the structure diagram of the off-state power-taking circuit is shown in fig. 4, the off-state power-taking circuit is a low-power-consumption switching power supply, and can supply enough current to the first load circuit when the second load is turned off, and meanwhile, the flickering or micro-lighting phenomenon of the low-power LED lamp cannot be caused. When lightning surge occurs, the piezoresistor RT1 can protect the off-state power taking circuit from being damaged. Of course, the structure of the off-state power-taking circuit is not limited to the structure shown in fig. 4, and may be any suitable off-state power-taking circuit structure in the prior art. As shown in fig. 4, the off-state power-taking circuit further includes a seventh resistor R52, an eighth resistor R53, a ninth resistor R55, a tenth resistor R56, an eleventh resistor R67, a rectifier bridge DB4, a fourth capacitor C20, a fifth capacitor C30, a sixth capacitor C40, a seventh capacitor C25, an eighth capacitor C26, a ninth capacitor C27, a tenth capacitor C41, a third zener diode ZD3, a third diode D22, a fourth diode D23, a fifth diode D24, a second optical coupler U6, a processing chip U7, and a transformer T1, wherein PGND represents ground, the off-state power-taking circuit is electrically connected to the live wire through the LOAD1, and AGND represents electrically connected to the neutral wire through the second LOAD.
In another specific embodiment of the present application, as shown in fig. 3, the system further includes an overload protection circuit 101, a voltage conversion circuit 102, and a micro control unit 90, wherein a first end of the overload protection circuit 101 is electrically connected to the live line, and a second end of the overload protection circuit 101 is electrically connected to the on-state power-taking circuit 30 and the off-state power-taking circuit 50, respectively; a first terminal of the voltage conversion circuit 102 is electrically connected to a third terminal of the off-state power taking circuit 50 and a third terminal of the on-state power taking circuit 30, respectively, and a second terminal of the voltage conversion circuit 102 is used for connecting to a first load; the micro control unit 90 is electrically connected to the light emitter of the on-state power taking circuit 30, and the micro control unit 90 is configured to control the on/off state of the light emitter. In the system, the safety of the system is ensured through the overload protection circuit, the voltage conversion circuit is used for converting high voltage into low voltage, power supply for the first load is further facilitated, and the micro control unit controls the on-off state of the light emitter by outputting high and low levels.
In a specific embodiment, the voltage conversion circuit is a low dropout linear regulator, as shown in fig. 3, the system converts 220V ac power into voltage Vin to be transmitted to the voltage conversion circuit 102 through the off-state power-taking circuit 50, converts 220V ac power into voltage Vin to be transmitted to the voltage conversion circuit 102 through the on-state power-taking circuit 30, and converts the voltage V ac into voltage Vcc to power the communication module 60 and the micro control unit 90 through the voltage conversion circuit 102. In practical applications, the first load includes the communication module 60 and the micro control unit 90, but the first load may be other load units. The communication module 60 may be a communication module of a radio frequency chip.
In another specific embodiment of the present application, as shown in fig. 3, the system further includes a zero crossing point detection circuit 100, an LED indicator 70 and a panel key 80, wherein the LED indicator 70 is electrically connected to the micro control unit 90, the micro control unit 90 controls the on/off of the LED indicator 70, the panel key 80 is electrically connected to the micro control unit 90, when the key is pressed, the panel key 80 sends a corresponding key pressing signal to the micro control unit 90, a first end of the zero crossing point detection circuit 100 is electrically connected to the overload protection circuit 101, the off-state power taking circuit 50 and the bidirectional thyristor SR3 of the zero crossing point on-state power taking circuit 30, and a second end of the zero crossing point detection circuit 100 is electrically connected to the micro control unit 90.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
1) the on-state power taking circuit comprises an optical coupler, a driving unit and a time delay unit, wherein the driving unit is electrically connected with the light receiver, the driving unit is in a charging state when the on-state power taking is carried out, and the driving unit supplies power to a first load when the on-state power taking is carried out; the delay unit is electrically connected with the driving unit and is used for prolonging the charging time of the determining unit. The above-mentioned power circuit is got to state of opening of this application, the charge time through above-mentioned delay unit extension above-mentioned drive unit has guaranteed that above-mentioned drive unit stores sufficient electric energy and has given above-mentioned first load power supply to guaranteed that above-mentioned power circuit is got to state of opening is got comparatively sufficient, has alleviated the problem that the not enough normal work of simplex switch got the electricity in the prior art betterly.
2) The single live wire power taking system comprises a second load and an on-state power taking circuit, wherein the on-state power taking circuit is any one of the circuits. Above-mentioned single live wire gets electric system, through the delay unit among the above-mentioned open state circuit of getting, the charge time of extension drive unit has guaranteed that drive unit stores sufficient electric energy and supplies power to it is comparatively sufficient to have guaranteed that above-mentioned open state gets electric circuit's the electricity of getting, has alleviated the problem that the not enough normal work of single live wire switch electricity of prior art is got to the better, has guaranteed the normal work of above-mentioned single live wire system of getting.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (12)
1. An on-state power taking circuit, comprising:
the optical coupler comprises a light emitter and a light receiver;
the driving unit is electrically connected with the light receiver, is in a charging state when power is taken in an off state, and is used for supplying power to a first load when power is taken in an on state;
and the time delay unit is electrically connected with the driving unit and is used for prolonging the charging time of the driving unit.
2. The circuit of claim 1, wherein the driving unit comprises:
the first switch module is provided with a first end, a second end and a third end, the first end of the first switch module is electrically connected with the first end of the light receiver, the second end of the first switch module is electrically connected with the second end of the light receiver, and the second end of the first switch module is also used for being electrically connected with a live wire;
the first end of the first energy storage module is electrically connected with the second end of the first switch module, the second end of the first energy storage module is electrically connected with the third end of the first switch module, the second end of the first energy storage module is also used for being connected with the first load, and the second end of the first energy storage module is also used for being electrically connected with a zero line through the second load.
3. The circuit of claim 2, wherein the delay unit comprises:
the first end of the second switch module is electrically connected with the third end of the first switch module, the second end of the second switch module is used for being electrically connected with the live wire, and the third end of the second switch module is used for being electrically connected with the zero wire through the second load;
and the first end of the second energy storage module is electrically connected with the zero line through the second load, and the second end of the second energy storage module is electrically connected with the third end of the first switch module.
4. The circuit of claim 3, wherein the delay cell further comprises:
and the first end of the voltage stabilizing module is electrically connected with the first end of the second switch module, and the second end of the voltage stabilizing module is electrically connected with the second end of the first energy storage module.
5. The circuit of claim 3, further comprising:
and the protection unit is used for blocking surge pulse, the first end of the protection unit is used for being electrically connected with the live wire, and the second end of the protection unit is electrically connected with the first end of the second switch module.
6. The circuit of claim 3, further comprising:
the first end of the rectifier bridge is used for being electrically connected with the live wire, the second end of the rectifier bridge is electrically connected with the second end of the first energy storage module, the third end of the rectifier bridge is electrically connected with the first end of the second switch module, and the fourth end of the rectifier bridge is electrically connected with the second end of the light receiver, the second end of the first switch module and the first end of the first energy storage module respectively.
7. The circuit of claim 6, further comprising:
a first voltage division unit, a first end of which is electrically connected with a fourth end of the rectifier bridge and a second end of the first switch module respectively;
and the first end of the second voltage division unit is electrically connected with the second end of the first voltage division unit, and the second end of the second voltage division unit is electrically connected with the second end of the light receiver and the first end of the first energy storage module respectively.
8. The circuit of claim 2, further comprising:
the first end of the switch unit is electrically connected with the third end of the first switch module;
and the first end of the voltage stabilizing unit is electrically connected with the second end of the switch unit, and the second end of the voltage stabilizing unit is electrically connected with the second end of the first energy storage module.
9. The circuit of claim 2, further comprising:
and the first end of the third voltage division unit is electrically connected with the third end of the first switch module, and the second end of the third voltage division unit is electrically connected with the second end of the first energy storage module.
10. The utility model provides a single live wire gets electric system which characterized in that includes:
a second load for electrical connection with a neutral line;
an on-state power circuit as claimed in any one of claims 1 to 9, having a first terminal for electrical connection with a live line and a second terminal for electrical connection with the second load.
11. The system of claim 10, further comprising:
and a first end of the off-state electricity taking circuit is electrically connected with the live wire, and a second end of the off-state electricity taking circuit is electrically connected with the second load.
12. The system of claim 11, further comprising:
the first end of the overload protection circuit is electrically connected with the live wire, and the second end of the overload protection circuit is electrically connected with the on-state power taking circuit and the off-state power taking circuit respectively;
a first end of the voltage conversion circuit is electrically connected with a third end of the off-state electricity taking circuit and a third end of the on-state electricity taking circuit respectively, and a second end of the voltage conversion circuit is used for connecting a first load;
and the micro control unit is electrically connected with a light emitter of the on-state power taking circuit and is used for controlling the on-off state of the light emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120626209.4U CN215009651U (en) | 2021-03-26 | 2021-03-26 | On-state power taking circuit and single-live-wire power taking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120626209.4U CN215009651U (en) | 2021-03-26 | 2021-03-26 | On-state power taking circuit and single-live-wire power taking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215009651U true CN215009651U (en) | 2021-12-03 |
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ID=79162866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120626209.4U Active CN215009651U (en) | 2021-03-26 | 2021-03-26 | On-state power taking circuit and single-live-wire power taking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215009651U (en) |
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2021
- 2021-03-26 CN CN202120626209.4U patent/CN215009651U/en active Active
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