CN212573046U - On-state power taking circuit, intelligent single-live-wire switch module and intelligent single-live-wire switch - Google Patents
On-state power taking circuit, intelligent single-live-wire switch module and intelligent single-live-wire switch Download PDFInfo
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- CN212573046U CN212573046U CN202021392174.4U CN202021392174U CN212573046U CN 212573046 U CN212573046 U CN 212573046U CN 202021392174 U CN202021392174 U CN 202021392174U CN 212573046 U CN212573046 U CN 212573046U
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Abstract
The embodiment of the utility model provides an on-state is got electric circuit, intelligent single live wire switch module and intelligent single live wire switch, this on-state is got electric circuit and is included getting electric input end, getting electric output end, first switch tube, second switch tube, first diode, second diode, third diode, fourth diode and comparison circuit; when the comparison circuit outputs a first level signal, a first power taking loop is formed by the first switch tube and the second switch tube in the full cycle of the alternating current to take power; when the comparison circuit outputs the second level signal, a second power taking loop is formed by the first diode and the second diode to take power in the negative half period of the alternating current, and a third power taking loop is formed by the third diode and the fourth diode to take power in the positive half period of the alternating current. This circuit is got to open state can get the electricity at any time homoenergetic, and then improves and get the electric efficiency to avoid the problem that intelligent single live wire is out of control.
Description
Technical Field
The application relates to single live wire switch technical field, concretely relates to circuit, intelligent single live wire switch module and intelligent single live wire switch are got to open state.
Background
With the development of smart homes, switches have become increasingly intelligent. The intelligent single-live-wire switch can seamlessly replace an original wall mechanical switch by matching a single-live-wire wiring technology with a ZigBee (Violet Peak) technology under the condition of not changing the original circuit layout. However, the problem of inefficiency can appear in current single live wire switch of intelligence when the on-state is got the electricity, leads to single live wire of intelligence out of control. For example, an intelligent single hot wire switch cannot control a light fixture after the light is turned on, or the light fixture is repeatedly restarted.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the embodiment of the utility model provides an on-state electricity-taking circuit, single live wire switch module of intelligence and single live wire switch of intelligence to solve above-mentioned technical problem.
The embodiment of the utility model provides an adopt following technical scheme to realize:
an on-state power taking circuit comprises a power taking input end, a power taking output end, a first switch tube, a second switch tube, a first diode, a second diode, a third diode, a fourth diode and a comparison circuit; the first connection end of the first switch tube is connected to the power taking input end, the second connection end of the first switch tube is connected to the reference ground end, and the control end of the first switch tube is connected to the output end of the comparison circuit; the first connecting end of the second switching tube is connected to the power taking output end, the second connecting end of the second switching tube is connected to the reference ground end, and the control end of the second switching tube is connected to the output end of the comparison circuit; the anode of the first diode is connected with the power-taking output end, the anode of the third diode is connected with the power-taking input end, the cathode of the first diode is connected with the cathode of the third diode, and the connection node is connected with the input end of the comparison circuit and the reference ground end; the anode of the second diode is connected to the second connecting end of the first switching tube, and the cathode of the second diode is connected to the first connecting end of the first switching tube; the anode of the fourth diode is connected to the second connection end of the second switch tube, and the cathode of the fourth diode is connected to the first connection end of the second switch tube.
In some embodiments, the on-state power taking circuit further includes a voltage stabilizing circuit and a voltage output circuit, the voltage stabilizing circuit has a first end connected to a connection node of the second diode and the third diode, a second end connected to the input end of the comparison circuit, and a third end connected to the reference ground end; and one end of the voltage output circuit is connected to the first end of the voltage stabilizing circuit, and the other end of the voltage output circuit is connected to the reference ground end.
In some embodiments, the on-state power-taking circuit further includes an energy storage circuit, one end of the energy storage circuit is connected to the first end of the voltage stabilizing circuit, and the other end of the energy storage circuit is connected to the reference ground.
In some embodiments, a voltage stabilizing circuit includes a zener diode, a first resistor, and a first capacitor; the cathode of the voltage stabilizing diode is connected with the connecting node of the first diode and the third diode, and the anode of the voltage stabilizing diode is connected with one end of the first resistor; the other end of the first resistor is connected to a reference ground end; the connection node of the voltage-stabilizing diode and the first resistor is connected to the input end of the comparison circuit; the first capacitor is connected in parallel to two ends of the first resistor.
In some embodiments, the comparison circuit includes a first input terminal and a second input terminal, the first input terminal is connected to a connection node of the zener diode and the first resistor; the on-state power taking circuit further comprises a comparison feedback circuit connected to a second input end of the comparison circuit, and the comparison feedback circuit comprises a second resistor, a third resistor, a fourth resistor, a fifth resistor and a triode; one end of the second resistor is connected with the direct-current power supply, and the other end of the second resistor is connected with one end of the third resistor; the other end of the third resistor is connected with the collector of the triode; the connection node of the second resistor and the third resistor is connected to the second input end of the comparison circuit; the emitter of the triode is connected with the reference ground end; one end of the fifth resistor is connected between the control end of the first switching tube and the control end of the second switching tube, and the other end of the fifth resistor is connected to one end of the fourth resistor; the other end of the fourth resistor is connected with the base electrode of the triode; and the connection node of the fourth resistor and the fifth resistor is connected to the output end of the comparison circuit.
In some embodiments, the first switching tube is a first MOS tube, and the second diode is a body diode of the first MOS tube; the second switch tube is a second MOS tube, and the fourth diode is a body diode of the second MOS tube.
In some embodiments, the first switch tube includes any one or more combination of a MOS tube, a triode and a thyristor; the second switch tube comprises any one or a combination of a MOS tube, a triode and a silicon controlled rectifier.
The embodiment of the utility model provides an intelligence single live wire switch module is still provided, get the electric circuit including the open state of any one of the above-mentioned; the intelligent single-live-wire switch module further comprises a closed-state power taking circuit, a communication circuit and a DC-DC circuit; one end of the DC-DC circuit is connected with the on-state power-taking circuit and the off-state power-taking circuit, and the other end of the DC-DC circuit is connected with the communication circuit.
In some embodiments, the intelligent single fire wire switch module further comprises a relay and a relay control circuit; one end of the relay is connected with the power taking output end of the on-state power taking circuit, and the other end of the relay is used for connecting a load; one end of the relay control circuit is connected with the relay, and the other end of the relay control circuit is connected with the communication circuit.
The embodiment of the utility model provides a still provide a single live wire switch of intelligence, including the shell and locate the shell in as above arbitrary single live wire switch module of intelligence.
The embodiment of the utility model provides an on-state power-taking circuit gets the electricity through getting the electricity input, and through getting the output electric energy of electricity, when comparison circuit output first level signal, in the full cycle of alternating current, get the electricity through first switch tube and second switch tube formation first get the electric circuit and get between the electricity input and get the electricity output and get the electricity; when the comparison circuit outputs the second level signal, a second power taking loop is formed between the power taking input end and the power taking output end through the first diode and the second diode to take power in the negative half period of the alternating current, and a third power taking loop is formed between the power taking output end and the power taking output end through the third diode and the fourth diode to take power in the positive half period of the alternating current. Therefore, the embodiment of the utility model provides an on-state is got electric circuit and can get the electricity at the arbitrary time homoenergetic, and then improves and get electric efficiency to avoid the problem that intelligent single live wire switch is out of control.
These and other aspects of the present application will be more readily apparent from the following description of the embodiments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 shows a block diagram of an on-state power-taking circuit provided by an embodiment of the present invention.
Fig. 2 shows a block diagram of another on-state power-taking circuit provided in an embodiment of the present invention.
Fig. 3 shows a schematic circuit structure diagram of an on-state power-taking circuit provided by an embodiment of the present invention.
Fig. 4 shows a block diagram of an intelligent single-live-wire switch module provided by an embodiment of the present invention.
Fig. 5 shows the utility model discloses the structural schematic diagram of the single live wire switch of intelligence that the embodiment provided.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In order to make those skilled in the art better understand the solution of the present application, the following description will be made with reference to the accompanying drawings in the embodiment of the present invention for clearly and completely describing the technical solution in the embodiment of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
An on state: this refers to the situation where the working circuits of the loads are connected.
And (3) closed state: this is the case when the working circuit of the load is open.
As shown in fig. 1, fig. 1 schematically shows a block diagram of an on-state power-taking circuit 100 according to an embodiment of the present invention. The on-state power-taking circuit 100 includes a power-taking input terminal 110, a power-taking output terminal 120, a first rectifying circuit 130, a second rectifying circuit 140, and a comparing circuit 150. The power-taking input terminal 110 is used for connecting an external live wire, and the power-taking output terminal 120 is used for outputting electric energy to a load. The first rectifying circuit 130 includes a first terminal, a second terminal, and a third terminal; the first terminal is connected to the power-taking input terminal 110, the second terminal is connected to the reference ground terminal 160, and the third terminal is connected to the comparison circuit 150. The second rectifying circuit 140 includes a fourth end, a fifth end, and a sixth end; the fourth terminal is connected to the power-taking output terminal 120, the fifth terminal is connected to the reference ground terminal 160, and the sixth terminal is connected to the comparison circuit 150. The comparator circuit 150 includes an input terminal and an output terminal; the input end is connected to the power-taking input end, and the output end is connected to the third end of the first rectifying circuit 130 and the sixth end of the second rectifying circuit 140. The first rectifying circuit 130 and the second rectifying circuit 140 are configured to form a first power-taking loop between the power-taking input terminal 110 and the power-taking output terminal 120 according to the first level signal output by the comparing circuit 150; the first rectifying circuit 130 is further configured to form a second power-taking loop between the power-taking input terminal 110 and the power-taking output terminal 120 in the negative half-cycle of the alternating current according to the second level signal output by the comparing circuit 150; the second rectifying circuit 140 is further configured to form a third power-taking loop between the power-taking input terminal 110 and the power-taking output terminal 120 in the positive half cycle of the alternating current according to the second level signal output by the comparing circuit 150.
In this embodiment, the power-taking input terminal 110 is connected to a live wire to take power from the alternating current; the power output terminal 120 is connected to a load, which may be a lamp. In this embodiment, the first level signal may be a high level signal, and the second level signal may be a low level signal. When the comparison circuit 150 outputs a high level signal, the first rectification circuit 130 and the second rectification circuit 140 form a first power-taking loop between the power-taking input end 110 and the power-taking output end 120, and the current reaches the power-taking output end 120 through the power-taking input end 110, the first rectification circuit 130 and the second rectification circuit 140, so that power taking is completed. When the comparison circuit 150 outputs a low level signal, the first rectification circuit 130 forms a second power-taking loop between the power-taking input end 110 and the power-taking output end 120 in a negative half cycle of the alternating current, and the current reaches the power-taking input end 110 through the power-taking output end 120, the reference ground end 160 and the first rectification circuit 130, so that power taking is completed; in the positive half cycle of the alternating current, the second rectifying circuit 140 forms a third power-taking loop between the power-taking input terminal 110 and the power-taking output terminal 120, and the current reaches the power-taking output terminal 120 through the power-taking input terminal 110, the reference ground terminal 160 and the second rectifying circuit 140, so that the power taking is completed. It should be noted that the reference ground 160 is a reference ground on the circuit board. When the comparison circuit 150 outputs a low level, the first rectification circuit 130 and the second rectification circuit 140 are two half-wave rectification circuits respectively, and the two half-wave rectification circuits form a full-wave rectification circuit in the full cycle of the alternating current, so that power can be taken in the full cycle of the alternating current, and the power taking efficiency is improved.
In the on-state power taking circuit provided by this embodiment, power is taken through the power taking input terminal, electric energy is output through the power taking output terminal, and when the comparison circuit outputs the first level signal, a first power taking loop is formed between the power taking input terminal and the power taking output terminal through the first rectification circuit and the second rectification circuit in the full cycle of the alternating current to take power; when the comparison circuit outputs the second level signal, a second power taking loop is formed between the power taking input end and the power taking output end through the first rectification circuit to take power in the negative half period of the alternating current, and a third power taking loop is formed between the power taking output end and the power taking output end through the second rectification circuit to take power in the positive half period of the alternating current. Therefore, the embodiment of the utility model provides an on-state is got electric circuit and can get the electricity at the arbitrary time homoenergetic, and then improves and get electric efficiency to avoid the problem that intelligent single live wire switch is out of control.
As shown in fig. 2, an embodiment of the present invention provides another open-state power-taking circuit 200, where the open-state power-taking circuit 200 has a power-taking input 210, a power-taking output 220, a first rectification circuit 230, a second rectification circuit 240 and a comparison circuit 250 which are the same as the open-state power-taking circuit 100, and on this basis, the open-state power-taking circuit 200 further includes a voltage stabilizing circuit 260 and a voltage output circuit 270. The voltage stabilizing circuit 260 includes a seventh terminal, an eighth terminal, and a ninth terminal; the seventh end is connected to the connection node between the power-taking input end 210 and the first end of the first rectification circuit 230, the eighth end is connected to the input end of the comparison circuit 250, the ninth end is connected to the reference ground end 290, and the seventh end of the voltage stabilizing circuit 260 is further connected to the fourth end of the second rectification circuit 240; the voltage output circuit 270 has one end connected to the seventh end of the regulator 260 for providing an output voltage, and the other end connected to the ninth end of the regulator 260.
In this embodiment, the voltage regulator circuit 260 is used to output a stable voltage from the voltage output circuit 270, so as to provide a dc power supply for the subsequent circuit. Further, the comparing circuit 250 includes a first input terminal and a second input terminal, wherein the first input terminal is connected to the eighth terminal of the voltage stabilizing circuit 260, and the second input terminal is preset with a reference voltage. When the voltage output circuit 270 can provide sufficient energy for the subsequent circuit, that is, when the voltage output by the voltage output circuit 270 is high, the voltage at the first input terminal of the comparison circuit 270 connected to the voltage stabilizing circuit 260 is also higher, at this time, the voltage at the first input terminal of the comparison circuit 250 is greater than the preset reference voltage at the second input terminal, the comparison circuit 250 outputs the first level signal, and at this time, the first power taking loop formed by the first rectification circuit 230 and the second rectification circuit 240 takes power. When the energy provided by the voltage output circuit 270 for the subsequent circuit is insufficient, that is, when the voltage output by the voltage output circuit 270 is low, the voltage of the first input terminal of the comparison circuit 270 connected to the voltage stabilizing circuit 260 is also lower, at this time, the voltage of the first input terminal of the comparison circuit 250 is smaller than the preset reference voltage of the second input terminal, the comparison circuit 250 outputs the second level signal, at this time, in the negative half cycle of the alternating current, the current can be input into the reference ground terminal 290 from the power taking output terminal 220 through the first rectification circuit 230, then input into the voltage stabilizing circuit 260 through the reference ground terminal 290, and finally reaches the power taking input terminal 210, so as to form a second power taking loop for taking power; in the positive half cycle of the alternating current, after the current can be input into the reference ground terminal 290 through the voltage stabilizing circuit 260, the current is input into the second rectifying circuit 240 through the reference ground terminal 290, and finally reaches the current-taking output terminal 220 to form a third current-taking loop for taking the current.
Further, the on-state power-taking circuit 200 may further include a tank circuit 280, wherein one end of the tank circuit 280 is connected to the seventh end of the voltage stabilizing circuit 260, and the other end is connected to the ground reference terminal 290.
As shown in fig. 3, fig. 3 is a schematic circuit diagram of an on-state power-taking circuit 200 provided in this embodiment. The first rectifying circuit 230 includes a first switching tube Q1, a first diode D1, and a second diode D2; the second rectifying circuit 240 includes a second switching tube Q2, a third diode D3, and a fourth diode D4. The first connection end of the first switch tube Q1 is connected to the power-taking input end L1, the second connection end is connected to the reference ground end, and the control end is connected to the output end of the comparison circuit 250. In this embodiment, the first switch Q1 is a first MOS transistor Q1; the drain of the first MOS transistor Q1 is connected to the power-taking input terminal L1, the source is connected to the ground reference terminal, and the gate is connected to the output terminal of the comparison circuit 250. The first connection end of the second switch tube Q2 is connected to the power-taking output end L2, the second connection end is connected to the reference ground end, and the control end is connected to the output end of the comparison circuit 250. In this embodiment, the second switching transistor Q2 is a second MOS transistor Q2; the second MOS transistor Q2 has a drain connected to the power-taking output terminal L2, a source connected to the ground reference terminal, and a gate connected to the output terminal of the comparison circuit 250. In some embodiments, the first switching tube Q1 may be any one or more combination of a MOS tube, a triode, and a thyristor; the second switching tube Q2 may be any one or more combination of MOS tube, triode and thyristor.
The anode of the third diode D3 is connected to the power-taking input terminal L1, and the cathode is connected to the seventh terminal of the voltage stabilizing circuit 260; the anode of the first diode D1 is connected between the power-taking output terminal L2 and the second switch tube, and the cathode is connected between the cathode of the third diode D3 and the seventh terminal of the voltage stabilizing circuit 260; the anode of the second diode D2 is connected to the second connection end of the first switch tube, and the cathode is connected to the first connection end of the first switch tube; the anode of the fourth diode D4 is connected to the second connection terminal of the second switch tube, and the cathode is connected to the first connection terminal of the first switch tube.
The stabilizing circuit 260 includes a zener diode Dz, a first resistor R1, and a first capacitor C1. The cathode of the zener diode Dz is connected to the connection node between the power-taking input terminal L1 and the first end of the first rectifying circuit 230, and the anode is connected to one end of the first resistor R1. Specifically, the cathode of the zener diode Dz is connected to the cathode of the first diode D1 and the cathode of the third diode D3, and the anode of the zener diode Dz is connected to one end of the first resistor R1. The other end of the first resistor R1 is connected to a ground reference. The connection node of the zener diode Dz and the first resistor R1 is connected to the first input terminal of the comparison circuit 250; the first capacitor C1 is connected in parallel across the first resistor R1. The voltage output circuit 270 includes a capacitor C2, wherein one end of the capacitor C2 is connected to the ground reference terminal, and the other end is connected to the cathode of the zener diode Dz to output the voltage for providing the dc power for the subsequent circuit. In this embodiment, the on-state power taking circuit 200 may further include a fifth diode D5, the fifth diode D5 is connected between the zener diode DZ and the capacitor C2, specifically, the anode of the fifth diode D5 is connected to the cathode of the zener diode DZ, and the cathode is connected to the capacitor C2.
The tank circuit 280 includes a capacitor C3, one terminal of the capacitor C3 is connected between the cathode of the zener diode Dz and the cathode of the third diode D3, and the other terminal is connected to the ground reference terminal.
The comparator circuit 250 includes a comparator A1, wherein the non-inverting input of the comparator A1 is the first input of the comparator circuit 250 and the inverting input of the comparator A1 is the second input of the comparator circuit 250. The non-inverting input terminal of the comparator a1 is connected between the anode of the zener diode Dz and the first resistor R1, and the output terminal is connected to the gates of the first MOS transistor Q1 and the second MOS transistor Q2. In this embodiment, the on-state power-taking circuit 200 further includes a comparison feedback circuit 251, and the comparison feedback circuit 251 is connected to the second input terminal of the comparator a1 to provide the reference voltage. The comparison feedback circuit 251 includes a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, and a transistor Q3. One end of the second resistor R2 is connected with the direct current power supply, and the other end is connected with one end of the third resistor R3; the other end of the third resistor R3 is connected to the collector of the triode Q3; the connection node of the second resistor R2 and the third resistor R3 is connected to the inverting input end of the comparator A1; the emitter of transistor Q3 is connected to a reference ground. One end of the fifth resistor R5 is connected between the gate of the first MOS transistor Q1 and the gate of the second MOS transistor Q2, and the other end is connected to one end of the fourth resistor R4; the other end of the fourth resistor R4 is connected to the base of the triode Q3; the connection node of the fourth resistor R4 and the fifth resistor R5 is connected to the output terminal of the comparator a 1.
The principle of the above-mentioned on-state power-taking circuit 200 is as follows:
this on-state electricity-taking circuit 200 can produce stable output voltage through zener diode Dz and carry out the charge-discharge to electric capacity C2, and then can provide 12V's voltage output, for the later stage circuit provides the power. Meanwhile, the capacitor C2 and the capacitor C3 also store energy, so that the energy is continuously supplied to the subsequent circuit. When the capacitor C2 and the capacitor C3 can provide energy to the subsequent circuit, that is, the voltages at the two ends of the capacitor C2 and the capacitor C3 are large, the voltage at the non-inverting input end of the comparator a1 is larger than the voltage at the inverting input end, the comparator a2 outputs a high-level signal, and the first MOS transistor Q1 and the second MOS transistor Q2 are turned on. At this time, the current passes through the power-taking input end L1, the first MOS transistor Q1, the reference ground, the second MOS transistor Q2, and the power-taking output end L2 to form a first power-taking loop. At the moment, the electricity can be taken in the whole period of the alternating current.
When the energy provided by the capacitor C2 and the capacitor C2 is insufficient, that is, the voltages at the two ends of the capacitor C2 and the capacitor C3 are small, the voltage at the non-inverting input end of the comparator a1 is smaller than the voltage at the inverting input end, the comparator a1 outputs a low-level signal, and the first MOS transistor Q1 and the second MOS transistor Q2 are turned off. At this time, in the negative half period of the alternating current, the current passes through the power taking output end L2, the first diode D1, the zener diode Dz, the first resistor R1, the reference ground, the second diode D2 and the power taking input end L1 to form a second power taking loop to take power. In some embodiments, the second diode D2 may be a body diode of the first MOS transistor Q1, thereby saving circuit cost. Further, in the positive half period of the alternating current, the current passes through the power-taking input end L1, the third diode D3, the zener diode Dz, the first resistor R1, the reference ground, the fourth diode D4 and the power-taking output end L2 to form a third power-taking loop to take power. In some embodiments, the fourth diode D4 may be a body diode of the second MOS transistor Q2, thereby saving circuit cost. When the comparator a1 outputs a low level signal, the first rectifying circuit 230 and the second rectifying circuit 240 are two half-wave rectifying circuits, respectively, and the two half-wave rectifying circuits form a full-wave rectifying circuit in the full cycle of the alternating current, so that power can be taken in the full cycle of the alternating current. Therefore, the on-state power taking circuit 200 provided by the embodiment of the application can take power at any time, so that the power taking efficiency is improved, the problem that the intelligent single live wire is out of control is avoided, and the problem that the intelligent single live wire switch cannot control the lamp or the lamp to be repeatedly restarted due to insufficient power taking efficiency can be solved.
In addition, the problem of the single live wire switch out of control of intelligence is solved to the tradition can increase an extra X electric capacity in the single live wire switch of intelligence, but this mode has obviously strengthened the construction degree of difficulty. Therefore, the on-state power taking circuit 200 provided by the embodiment can reduce the installation difficulty of the intelligent single live wire switch by improving the power taking efficiency of the intelligent single live wire.
In the on-state power taking circuit provided by this embodiment, power is taken through the power taking input terminal, electric energy is output through the power taking output terminal, and when the comparison circuit outputs the first level signal, a first power taking loop is formed between the power taking input terminal and the power taking output terminal through the first rectification circuit and the second rectification circuit in the full cycle of the alternating current to take power; when the comparison circuit outputs the second level signal, a second power taking loop is formed between the power taking input end and the power taking output end through the first rectification circuit to take power in the negative half period of the alternating current, and a third power taking loop is formed between the power taking output end and the power taking output end through the second rectification circuit to take power in the positive half period of the alternating current. Therefore, the embodiment of the utility model provides an on-state is got electric circuit and can get the electricity at the arbitrary time homoenergetic, and then improves and get electric efficiency to avoid the problem that intelligent single live wire switch is out of control.
As shown in fig. 4, an embodiment of the present invention further provides an intelligent single-live-wire switch module 300, which includes the above-mentioned on-state power-taking circuit 100 or on-state power-taking circuit 200. Further, the intelligent single live wire switch module 300 further includes an off-state power-taking circuit 310, a communication circuit 320 and a DC-DC circuit 330; the DC-DC circuit 330 has one end connected to the on-power circuit 100 and the off-power circuit 310 or connected to the on-power circuit 200 and the off-power circuit 310 and the other end connected to the communication circuit 320.
In this embodiment, the communication circuit 320 may be, but is not limited to, a ZigBee module, a bluetooth module, or the like.
In some embodiments, the DC-DC circuit 330 may be replaced with an LDO (low dropout regulator) circuit.
Further, the intelligent single live wire switch module 300 further includes a relay 340 and a relay control circuit 350. One end of the relay 340 is connected to the power-taking output terminal of the on-state power-taking circuit 100 or the power-taking output terminal of the on-state power-taking circuit 200, and the other end is connected to the load. In this embodiment, the load may be, but is not limited to, a lamp, and the lamp may be connected between the relay and the neutral wire. The relay control circuit 350 has one end connected to the relay 340 and the other end connected to the communication circuit 320.
In some embodiments, the power-taking output terminal of the on-state power-taking circuit 100 or the power-taking output terminal of the on-state power-taking circuit 200 may be connected to a plurality of relays 340 to control a plurality of loads to meet the user's requirements.
In some embodiments, the intelligent single hot wire switch module 300 may further include an indicator light circuit 360 and a key circuit 370, both the indicator light circuit 360 and the key circuit 370 being connected to the communication circuit.
The embodiment of the utility model provides an intelligence single live wire switch module gets the electricity through getting the electricity input, and through getting the output electric energy of electricity when comparison circuit output first level signal, in the full cycle of alternating current, form first electricity getting return circuit and get the electricity through first rectifier circuit and second rectifier circuit between getting the electricity input and getting the electricity output; when the comparison circuit outputs the second level signal, a second power taking loop is formed between the power taking input end and the power taking output end through the first rectification circuit to take power in the negative half period of the alternating current, and a third power taking loop is formed between the power taking output end and the power taking output end through the second rectification circuit to take power in the positive half period of the alternating current. Therefore, the embodiment of the utility model provides an on-state is got electric circuit and can get the electricity at the arbitrary time homoenergetic, and then improves and get electric efficiency to avoid the problem that intelligent single live wire switch is out of control.
As shown in fig. 5, the embodiment of the present invention further provides an intelligent single live wire switch 400, where the intelligent single live wire switch 400 includes a housing 410 and the intelligent single live wire switch module 300, and the intelligent single live wire switch module 300 is disposed in the housing 410.
The embodiment of the utility model provides an intelligence single live wire switch gets the electricity through getting the electricity input, and through getting the output electric energy of electricity when comparison circuit output first level signal, in the full cycle of alternating current, form first electricity getting return circuit and get the electricity through first rectifier circuit and second rectifier circuit between getting the electricity input and getting the electricity output; when the comparison circuit outputs the second level signal, a second power taking loop is formed between the power taking input end and the power taking output end through the first rectification circuit to take power in the negative half period of the alternating current, and a third power taking loop is formed between the power taking output end and the power taking output end through the second rectification circuit to take power in the positive half period of the alternating current. Therefore, the embodiment of the utility model provides an on-state is got electric circuit and can get the electricity at the arbitrary time homoenergetic, and then improves and get electric efficiency to avoid the problem that intelligent single live wire switch is out of control.
Although the present application has been described with reference to the preferred embodiments, it is to be understood that the present application is not limited to the disclosed embodiments, but rather, the present application is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the present application.
Claims (10)
1. An on-state power taking circuit is characterized by comprising a power taking input end, a power taking output end, a first switch tube, a second switch tube, a first diode, a second diode, a third diode, a fourth diode and a comparison circuit;
the first connection end of the first switch tube is connected to the power taking input end, the second connection end of the first switch tube is connected to the reference ground end, and the control end of the first switch tube is connected to the output end of the comparison circuit;
the first connecting end of the second switching tube is connected to the power taking output end, the second connecting end of the second switching tube is connected to the reference ground end, and the control end of the second switching tube is connected to the output end of the comparison circuit;
the anode of the first diode is connected to the power-taking output end, the anode of the third diode is connected to the power-taking input end, the cathode of the first diode is connected with the cathode of the third diode, and a connection node is connected to the input end of the comparison circuit and the reference ground end;
the anode of the second diode is connected to the second connection end of the first switch tube, and the cathode of the second diode is connected to the first connection end of the first switch tube;
and the anode of the fourth diode is connected to the second connection end of the second switching tube, and the cathode of the fourth diode is connected to the first connection end of the second switching tube.
2. The on-state power-taking circuit of claim 1, further comprising:
the first end of the voltage stabilizing circuit is connected to the connection node of the second diode and the third diode, the second end of the voltage stabilizing circuit is connected to the input end of the comparison circuit, and the third end of the voltage stabilizing circuit is connected to the reference ground end; and
and one end of the voltage output circuit is connected to the first end of the voltage stabilizing circuit, and the other end of the voltage output circuit is connected to the reference ground end.
3. The on-state power circuit of claim 2, further comprising an energy storage circuit having one end connected to a first end of a voltage regulator circuit and another end connected to the reference ground.
4. The on-state power taking circuit of claim 3, wherein the voltage stabilizing circuit comprises a zener diode, a first resistor and a first capacitor; the negative electrode of the voltage stabilizing diode is connected to the connection node of the first diode and the third diode, and the positive electrode of the voltage stabilizing diode is connected to one end of the first resistor; the other end of the first resistor is connected to the reference ground end; the connection node of the voltage-stabilizing diode and the first resistor is connected to the input end of the comparison circuit; the first capacitor is connected in parallel to two ends of the first resistor.
5. An on-state power taking circuit as claimed in claim 4, wherein the comparison circuit comprises a first input terminal and a second input terminal, the first input terminal is connected to a connection node of the zener diode and the first resistor; the on-state power taking circuit further comprises a comparison feedback circuit connected to the second input end of the comparison circuit, and the comparison feedback circuit comprises a second resistor, a third resistor, a fourth resistor, a fifth resistor and a triode;
one end of the second resistor is connected to a direct-current power supply, and the other end of the second resistor is connected to one end of the third resistor; the other end of the third resistor is connected to the collector of the triode; the connection node of the second resistor and the third resistor is connected to the second input end of the comparison circuit; the emitter of the triode is connected with the reference ground end; one end of the fifth resistor is connected between the control end of the first switching tube and the control end of the second switching tube, and the other end of the fifth resistor is connected to one end of the fourth resistor; the other end of the fourth resistor is connected to the base electrode of the triode; and the connection node of the fourth resistor and the fifth resistor is connected to the output end of the comparison circuit.
6. The on-state power taking circuit according to any one of claims 1 to 5, wherein the first switching tube is a first MOS tube, and the second diode is a body diode of the first MOS tube; the second switch tube is a second MOS tube, and the fourth diode is a body diode of the second MOS tube.
7. An on-state power taking circuit as claimed in any one of claims 1 to 5, wherein the first switching tube comprises any one or more of a MOS tube, a triode and a thyristor; the second switch tube comprises any one or a plurality of combinations of MOS tubes, triodes and controllable silicon.
8. An intelligent single live wire switch module, comprising the on-state power taking circuit of any one of claims 1 to 7; the single live wire switch module of intelligence still includes:
a closed-state power taking circuit;
a communication circuit; and
and one end of the DC-DC circuit is connected with the open-state power taking circuit and the closed-state power taking circuit, and the other end of the DC-DC circuit is connected with the communication circuit.
9. The intelligent single fire wire switch module of claim 8, further comprising:
one end of the relay is connected with the power taking output end of the on-state power taking circuit, and the other end of the relay is used for being connected with a load; and
and one end of the relay control circuit is connected to the relay, and the other end of the relay control circuit is connected to the communication circuit.
10. An intelligent single live wire switch, comprising a housing and an intelligent single live wire switch module as claimed in any one of claims 8 to 9 disposed in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021392174.4U CN212573046U (en) | 2020-07-15 | 2020-07-15 | On-state power taking circuit, intelligent single-live-wire switch module and intelligent single-live-wire switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021392174.4U CN212573046U (en) | 2020-07-15 | 2020-07-15 | On-state power taking circuit, intelligent single-live-wire switch module and intelligent single-live-wire switch |
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| Publication Number | Publication Date |
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| CN212573046U true CN212573046U (en) | 2021-02-19 |
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| CN202021392174.4U Active CN212573046U (en) | 2020-07-15 | 2020-07-15 | On-state power taking circuit, intelligent single-live-wire switch module and intelligent single-live-wire switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023130327A1 (en) * | 2022-01-06 | 2023-07-13 | 武汉领普科技有限公司 | Single live-wire power fetching circuit and method, adapter circuit, single live-wire power fetching adaptation method, and switch |
-
2020
- 2020-07-15 CN CN202021392174.4U patent/CN212573046U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023130327A1 (en) * | 2022-01-06 | 2023-07-13 | 武汉领普科技有限公司 | Single live-wire power fetching circuit and method, adapter circuit, single live-wire power fetching adaptation method, and switch |
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