CN212367243U - Electronic switch device capable of realizing double control or multiple control - Google Patents
Electronic switch device capable of realizing double control or multiple control Download PDFInfo
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- CN212367243U CN212367243U CN202021170643.8U CN202021170643U CN212367243U CN 212367243 U CN212367243 U CN 212367243U CN 202021170643 U CN202021170643 U CN 202021170643U CN 212367243 U CN212367243 U CN 212367243U
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Abstract
The utility model discloses an electronic switch device capable of realizing double control or multi-control, which comprises an electronic switch circuit and a plurality of external switches; the electronic switch circuit is provided with a power supply access end, a switch state connecting end of an electronic switch output control load and an external switch connecting end; two ends of the external switches are respectively connected with the on-off state connecting end and the external switch connecting end of the electronic switch output control load; the electronic switch outputs a switch state connecting end for controlling the load to be connected with one end of the load, and the other end of the load is connected to a zero line of the power supply. The utility model discloses can realize two accuses or the purpose of many accuses.
Description
Technical Field
The utility model relates to an electronic switch technical field especially relates to an electronic switch device that can realize two accuses or many accuses.
Background
The electronic switch is an operation unit for realizing the on-off of a circuit by utilizing an electronic circuit and a power electronic device, and at least comprises a controllable electronic driving device, such as a thyristor, a transistor, a field effect transistor, a controllable silicon, a relay and the like. Most of electronic switches in the prior art can only control loads by the switch or achieve the purpose of double control by mechanical switch conversion, and the multi-control effect is difficult to realize, so that great inconvenience is brought to the application of the electronic switches, and the existing electronic switch products lack competitiveness.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide an electronic switch device that can realize two accuses or many accuses, through the improvement to electronic switch circuit structure to realize two accuses or the purpose of many accuses.
The utility model provides a technical scheme that its technical problem adopted is: an electronic switch device capable of realizing double control or multiple control comprises an electronic switch circuit and a plurality of external switches; the electronic switch circuit is provided with a power supply access end, a switch state connecting end of an electronic switch output control load and an external switch connecting end; two ends of the external switches are respectively connected with the on-off state connecting end and the external switch connecting end of the electronic switch output control load; the electronic switch outputs a switch state connecting end for controlling the load to be connected with one end of the load, and the other end of the load is connected to a zero line of the power supply.
The electronic switch circuit comprises a switch tube, an AD/DC conversion circuit, an external switch detection circuit and an MCU circuit; the switch tube is connected between a live wire of a power supply and a switch state connecting end of an electronic switch output control load; the input end of the AD/DC conversion circuit is connected with the power supply access end, and the output end of the AD/DC conversion circuit is connected to the power supply end of the MCU circuit; one end of the external switch detection circuit is connected to the external switch connecting end, and the other end of the external switch detection circuit is connected to the MCU circuit; and the output of the MCU circuit is connected to the switching tube.
And the power supply access end of the electronic switch circuit is connected with a single live wire of a power supply or a zero live wire of the power supply.
And a level conversion circuit is also connected between the external switch detection circuit and the MCU circuit.
The external switch detection circuit comprises a first diode, a first resistor, a first capacitor, a second resistor and a third resistor; the positive pole of the first diode is connected to the external switch connecting end, the negative pole of the first diode is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the first capacitor, the other end of the first capacitor is connected to one end of the third resistor, the other end of the third resistor is grounded, the second resistor is connected with the first capacitor in parallel, and one end of the third resistor is further connected to the MCU circuit.
The external switch detection circuit also comprises a first voltage-regulator tube and a second capacitor; and the first voltage-regulator tube and the second capacitor are respectively connected with the third resistor in parallel.
The external switch detection circuit comprises a second diode, a fourth resistor, a first MOS (metal oxide semiconductor) tube, an eighth resistor, a second MOS tube and a sixth resistor; the anode of the second diode is connected to the external switch connecting end, the cathode of the second diode is connected to one end of a fourth resistor, the other end of the fourth resistor is connected to the drain electrode of the first MOS transistor, the source electrode of the first MOS transistor is connected to one end of a sixth resistor, the other end of the sixth resistor is grounded, the cathode of the second diode is also connected to one end of an eighth resistor, the other end of the eighth resistor is connected to the drain electrode of the second MOS transistor, the source electrode of the second MOS transistor is connected to one end of the sixth resistor, and the grid electrode of the first MOS transistor and the grid electrode of the second MOS transistor are respectively connected to the corresponding ends of the MCU circuit; one end of the sixth resistor is also connected to the MCU circuit.
A fifth resistor is connected between the other end of the fourth resistor and the drain electrode of the first MOS transistor; and a ninth resistor is connected between the other end of the eighth resistor and the drain electrode of the second MOS transistor.
The grid electrode of the first MOS tube is connected to the corresponding end of the MCU circuit through a seventh resistor; and the grid electrode of the second MOS tube is connected to the corresponding end of the MCU circuit through a tenth resistor.
The externally-matched switch detection circuit also comprises a second voltage-regulator tube and a third capacitor; and the second voltage-regulator tube and the third capacitor are respectively connected with the sixth resistor in parallel.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model adopts the electronic switch device which can realize double control or multiple control and is composed of the electronic switch circuit and a plurality of external switches; the electronic switch circuit is provided with a power supply access end, an electronic switch output control load switch state connecting end and an external switch connecting end; two ends of the external switches are respectively connected with the on-off state connecting end and the external switch connecting end of the electronic switch output control load; the electronic switch outputs a switch state connecting end for controlling the load to be connected with one end of the load, and the other end of the load is connected to a zero line of the power supply. The structure of the utility model can realize the purpose of double control or multi-control.
The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the electronic switch device of the present invention is not limited to the embodiment.
Drawings
Fig. 1 is a circuit block diagram of a first embodiment of the present invention;
fig. 2 is a circuit block diagram of a first embodiment of the present invention (the electronic switch circuit is further exploded);
fig. 3 is a schematic circuit diagram of an external switch detection circuit according to a first embodiment of the present invention;
fig. 4 is a schematic circuit diagram of the external switch detection circuit according to the second embodiment of the present invention;
fig. 5 is a circuit block diagram of a third embodiment of the present invention (the electronic switch circuit is further exploded).
Detailed Description
Example one
Referring to fig. 1 to 3, an electronic switching device capable of implementing dual control or multi control of the present invention includes an electronic switching circuit 2 and a plurality of external switches 1; the electronic switch circuit 2 is provided with a power supply access end, a switch state connecting end LD of an electronic switch output control load and an external switch connecting end P; two ends of the external switches 1 are respectively connected with a switch state connecting end LD and an external switch connecting end P of the electronic switch output control load; the electronic switch outputs a switch state connecting end LD for controlling the load to be connected with one end of the load 3, and the other end of the load 3 is connected to a zero line of a power supply; the point P and the point LD can control the switch state of the load by connecting with an external switch, the external switch can be respectively controlled by connecting with 1, 2, 3 and … N switches, and N refers to a natural number larger than 1.
In this embodiment, the electronic switch circuit 2 includes a switch tube 21, an AD/DC conversion circuit 22, an external switch detection circuit 23, and an MCU circuit 24; the switch tube 21 is connected between a live wire L of a power supply and a switch state connecting end LD of an electronic switch output control load; the input end of the AD/DC conversion circuit 22 is connected to the power supply input end, and the output end of the AD/DC conversion circuit 22 is connected to the power supply end of the MCU circuit 24; one end of the external switch detection circuit 23 is connected to the external switch connection end P, and the other end of the external switch detection circuit 23 is connected to the MCU circuit 24; the output of the MCU circuit 24 is connected to the switch tube 21. The switching tube 21, the AD/DC conversion circuit 22 and the MCU circuit 24 all adopt the technical means that can be realized by the prior art.
In this embodiment, the power supply connection end of the electronic switch circuit 23 may be connected to a single live wire of a power supply, or may be connected to a zero live wire of the power supply.
In this embodiment, the external switch detection circuit 23 includes a first diode D1, a first resistor R1, a first capacitor C1, a second resistor R2, and a third resistor R3; the positive pole of the first diode D1 is connected to an external switch connection end P, the negative pole of the first diode D1 is connected to one end of a first resistor R1, the other end of the first resistor R1 is connected to one end of a first capacitor C1, the other end of the first capacitor C1 is connected to one end of a third resistor R3, the other end of the third resistor R3 is grounded, the second resistor R2 is connected with the first capacitor C1 in parallel, and one end of the third resistor R3 is further connected to the MCU circuit.
In this embodiment, the external switch detection circuit 23 further includes a first voltage regulator ZD1 and a second capacitor C2; the first voltage regulator tube ZD1 and the second capacitor C2 are respectively connected in parallel with the third resistor R3.
When the external switch enables P to be connected to the LD, current flows through the first diode D1, the first resistor R1, the first capacitor C1 and the third resistor R3 to return to the ground wire of the electronic switch, voltage is generated at two ends of the third resistor R3, the voltage is obtained after voltage stabilization through the first voltage stabilizing tube ZD1 and bypass and filtering of the second capacitor C2, the voltage is input to the MCU to process the signal, the MCU judges that the switch is pressed down, and therefore the state of the load is controlled, otherwise, if the P end is disconnected with the LD end, the voltage at two ends of the third resistor R3 is 0V, and the MCU circuit judges that no switch signal is input.
The utility model discloses an electronic switch device capable of realizing double control or multi-control, which adopts an electronic switch circuit 2 and a plurality of external switches 1 to form the electronic switch device capable of realizing double control or multi-control; the electronic switch circuit 2 is provided with a power supply access end, a switch state connecting end LD of the electronic switch output control load and an external switch connecting end P; two ends of the external switches 1 are respectively connected with a switch state connecting end LD and an external switch connecting end P of the electronic switch output control load; the electronic switch outputs a switch state connecting end LD for controlling the load to be connected with one end of the load 3, and the other end of the load 3 is connected to a zero line of a power supply. The structure of the utility model can realize the purpose of double control or multi-control.
Example two
Referring to fig. 1, fig. 2 and fig. 4, the difference between the electronic switching device capable of implementing dual control or multi-control of the present invention and the first embodiment is that the externally-configured switch detection circuit 23 includes a second diode D2, a fourth resistor R4, a first MOS transistor Q1, an eighth resistor R8, a second MOS transistor Q2 and a sixth resistor R6; the anode of the second diode D2 is connected to the external switch connection end P, the cathode of the second diode D2 is connected to one end of a fourth resistor R4, the other end of the fourth resistor R4 is connected to the drain of a first MOS transistor Q1, the source of the first MOS transistor Q1 is connected to one end of a sixth resistor R6, the other end of the sixth resistor R6 is grounded, the cathode of the second diode D2 is also connected to one end of an eighth resistor R8, the other end of the eighth resistor R8 is connected to the drain of a second MOS transistor Q2, the source of the second MOS transistor Q2 is connected to one end of the sixth resistor R6, and the gate of the first MOS transistor Q1 and the gate of the second MOS transistor Q2 are respectively connected to corresponding ends of the MCU circuit 24; one end of the sixth resistor R6 is also connected to the MCU circuit 23.
In this embodiment, a fifth resistor R5 is further connected between the other end of the fourth resistor R4 and the drain of the first MOS transistor Q1; a ninth resistor R9 is further connected between the other end of the eighth resistor R8 and the drain of the second MOS transistor Q2.
In this embodiment, the gate of the first MOS transistor Q1 is connected to the corresponding end of the MCU circuit 24 through a seventh resistor R7; the gate of the second MOS transistor Q2 is connected to the corresponding end of the MCU circuit 24 through a tenth resistor R10.
In this embodiment, the externally-connected switch detection circuit 23 further includes a second voltage regulator ZD2 and a third capacitor C3; the second stabilizing voltage ZD2 and the third capacitor C3 are respectively connected in parallel with the sixth resistor R6.
When an external switch enables a P to be connected to an LD, when an electronic switch is switched on or off, the P end can be controlled by the circuit when the voltage difference of the P end to the ground is large, 1) when a load is in an on state, an MCU controls a first MOS tube Q1 through a seventh resistor R7 to be switched on, the MCU controls a second MOS tube Q2 through a tenth resistor R10 to be switched off, the current of the P end flows through a second diode D2, a fourth resistor R4, a fifth resistor R5, the first MOS tube Q1 is divided by a sixth resistor R6, the voltage of a second voltage-regulator tube ZD2 is stabilized, and the voltage of the P end is filtered by a third capacitor C3 and then is judged by the MCU; 2) when the load is in an off state, the MCU controls the first MOS tube Q1 through the seventh resistor R7 to be turned off, the MCU controls the second MOS tube Q2 through the tenth resistor R10 to be turned on, the current at the P end flows through the second diode D2, the eighth resistor R8, the ninth resistor R9 and the second MOS tube Q2, the voltage is divided through the sixth resistor R6, the voltage is stabilized through the second voltage stabilizing tube ZD2, the third capacitor C3 is filtered, and then judgment processing is carried out on the MCU.
EXAMPLE III
Referring to fig. 5, the difference between the electronic switch device capable of implementing dual control or multi-control of the present invention and the first embodiment is that a level shift circuit 25 is further connected between the external switch detection circuit 23 and the MCU circuit 24. The level shift circuit 25 adopts the technical means which can be realized by the prior art, the level shift circuit 25 can be a discrete component or an integrated chip, and the level shift circuit 25 is used for ensuring that the signal input to the MCU by the external switch detection circuit is more reliable and stable.
The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solutions disclosed above can be used by those skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. An electronic switch device capable of realizing double control or multiple control, which is characterized in that: comprises an electronic switch circuit and a plurality of external switches; the electronic switch circuit is provided with a power supply access end, a switch state connecting end of an electronic switch output control load and an external switch connecting end; two ends of the external switches are respectively connected with the on-off state connecting end and the external switch connecting end of the electronic switch output control load; the electronic switch outputs a switch state connecting end for controlling the load to be connected with one end of the load, and the other end of the load is connected to a zero line of the power supply.
2. The electronic switching device capable of implementing dual or multiple control according to claim 1, wherein: the electronic switch circuit comprises a switch tube, an AD/DC conversion circuit, an external switch detection circuit and an MCU circuit; the switch tube is connected between a live wire of a power supply and a switch state connecting end of an electronic switch output control load; the input end of the AD/DC conversion circuit is connected with the power supply access end, and the output end of the AD/DC conversion circuit is connected to the power supply end of the MCU circuit; one end of the external switch detection circuit is connected to the external switch connecting end, and the other end of the external switch detection circuit is connected to the MCU circuit; and the output of the MCU circuit is connected to the switching tube.
3. The electronic switching device capable of realizing double or multiple control according to claim 1 or 2, wherein: and the power supply access end of the electronic switch circuit is connected with a single live wire of a power supply or a zero live wire of the power supply.
4. The electronic switching device capable of implementing dual or multiple control according to claim 2, wherein: and a level conversion circuit is also connected between the external switch detection circuit and the MCU circuit.
5. The electronic switching device capable of implementing dual or multiple control according to claim 2, wherein: the external switch detection circuit comprises a first diode, a first resistor, a first capacitor, a second resistor and a third resistor; the positive pole of the first diode is connected to the external switch connecting end, the negative pole of the first diode is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the first capacitor, the other end of the first capacitor is connected to one end of the third resistor, the other end of the third resistor is grounded, the second resistor is connected with the first capacitor in parallel, and one end of the third resistor is further connected to the MCU circuit.
6. The electronic switching device capable of implementing dual or multiple control according to claim 5, wherein: the external switch detection circuit also comprises a first voltage-regulator tube and a second capacitor; and the first voltage-regulator tube and the second capacitor are respectively connected with the third resistor in parallel.
7. The electronic switching device capable of implementing dual or multiple control according to claim 2, wherein: the external switch detection circuit comprises a second diode, a fourth resistor, a first MOS (metal oxide semiconductor) tube, an eighth resistor, a second MOS tube and a sixth resistor; the anode of the second diode is connected to the external switch connecting end, the cathode of the second diode is connected to one end of a fourth resistor, the other end of the fourth resistor is connected to the drain electrode of the first MOS transistor, the source electrode of the first MOS transistor is connected to one end of a sixth resistor, the other end of the sixth resistor is grounded, the cathode of the second diode is also connected to one end of an eighth resistor, the other end of the eighth resistor is connected to the drain electrode of the second MOS transistor, the source electrode of the second MOS transistor is connected to one end of the sixth resistor, and the grid electrode of the first MOS transistor and the grid electrode of the second MOS transistor are respectively connected to the corresponding ends of the MCU circuit; one end of the sixth resistor is also connected to the MCU circuit.
8. The electronic switching device capable of implementing dual or multiple control according to claim 7, wherein: a fifth resistor is connected between the other end of the fourth resistor and the drain electrode of the first MOS transistor; and a ninth resistor is connected between the other end of the eighth resistor and the drain electrode of the second MOS transistor.
9. The electronic switching device capable of implementing dual or multiple control according to claim 8, wherein: the grid electrode of the first MOS tube is connected to the corresponding end of the MCU circuit through a seventh resistor; and the grid electrode of the second MOS tube is connected to the corresponding end of the MCU circuit through a tenth resistor.
10. The electronic switching device capable of implementing dual or multiple control according to claim 9, wherein: the externally-matched switch detection circuit also comprises a second voltage-regulator tube and a third capacitor; and the second voltage-regulator tube and the third capacitor are respectively connected with the sixth resistor in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021170643.8U CN212367243U (en) | 2020-06-22 | 2020-06-22 | Electronic switch device capable of realizing double control or multiple control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021170643.8U CN212367243U (en) | 2020-06-22 | 2020-06-22 | Electronic switch device capable of realizing double control or multiple control |
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| Publication Number | Publication Date |
|---|---|
| CN212367243U true CN212367243U (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021170643.8U Active CN212367243U (en) | 2020-06-22 | 2020-06-22 | Electronic switch device capable of realizing double control or multiple control |
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| CN (1) | CN212367243U (en) |
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