CN114826796B - Power supply switching circuit of dual-communication module - Google Patents
Power supply switching circuit of dual-communication module Download PDFInfo
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- CN114826796B CN114826796B CN202210745559.1A CN202210745559A CN114826796B CN 114826796 B CN114826796 B CN 114826796B CN 202210745559 A CN202210745559 A CN 202210745559A CN 114826796 B CN114826796 B CN 114826796B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/10—The network having a local or delimited stationary reach
- H02J2310/12—The local stationary network supplying a household or a building
- H02J2310/16—The load or loads being an Information and Communication Technology [ICT] facility
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Abstract
The application provides a power supply switching circuit of dual communication module, include: the device comprises a control power supply, an inverter circuit, a first switch control chip, a second switch control chip, a power supply, a first communication module and a second communication module; when the control power supply outputs a high level, the first switch control chip is controlled to be turned on so as to supply power to the first communication module, and meanwhile, the second switch control chip is controlled to be turned off through the phase-inverting circuit so as to stop supplying power to the second communication module; when the control power supply outputs a low level, the first switch control chip is controlled to be closed, so that power supply for the first communication module is stopped, and meanwhile, the second switch control chip is controlled to be opened through the phase-reversing circuit, so that power supply for the second communication module is realized. The power supply switching circuit can perform power-off processing on the communication module which does not communicate, so that the service life of the chips of the first communication module and the second communication module is prolonged.
Description
Technical Field
The application relates to the technical field of wireless communication, in particular to a power supply switching circuit of a dual-communication module.
Background
With the development of communication technology, more and more large-screen display products (e.g., televisions, commercial tablets, etc.) start to support communication in two communication modes (e.g., 5G mobile network communication and WIFI communication), and a user can switch the two communication modes through software, thereby implementing signal transmission in two different communication modes.
In the prior art, the same control power source is used in the circuit design of a product to control the power supply of the first communication module and the power supply of the second communication module to respectively supply power to the first communication module and the second communication module. However, in such a circuit, no matter the first communication module is communicating or the second communication module is communicating at the same time, both modules are in the power supply working state at the same time, so that the service life of the chips related to the first communication module and the second communication module is reduced in such a circuit, and the power consumption of the main boards of the first communication module and the second communication module is also high, thereby increasing the consumption of electric quantity.
Disclosure of Invention
In view of this, an object of the present application is to provide a power supply switching circuit for dual communication modules, which controls a switch chip by controlling a power supply, so that only a module in communication between a first communication module and a second communication module is in a power supply working state, and the communication module not in communication is powered off, thereby avoiding a situation that the two communication modules are in the power supply working state at the same time regardless of whether the two communication modules are in the communication state, and thus increasing the service lives of the chips of the first communication module and the second communication module, and reducing the power consumption of motherboards of the first communication module and the second communication module.
The embodiment of the application provides a power supply switching circuit of dual communication module, power supply switching circuit includes: the device comprises a control power supply, an inverter circuit, a first switch control chip, a second switch control chip, a power supply, a first communication module and a second communication module;
the first output end of the control power supply is connected with the first input end of the first switch control chip, and the second output end of the control power supply is connected with the first input end of the second switch control chip through the phase-inverting circuit; the output end of the first switch control chip is connected with the first communication module; the output end of the second switch control chip is connected with the second communication module;
when the control power supply outputs a high level, the first switch control chip is controlled to be turned on so as to supply power to the first communication module, and meanwhile, the second switch control chip is controlled to be turned off through the phase-inverting circuit so as to stop supplying power to the second communication module;
when the control power supply outputs a low level, the first switch control chip is controlled to be closed, so that power supply for the first communication module is stopped, and meanwhile, the second switch control chip is controlled to be opened through the phase-reversing circuit, so that power supply for the second communication module is realized.
In a possible implementation, the first output terminal of the control power supply is connected to an enable pin as the first input terminal of the first switch control chip; the second output end of the control power supply is connected with an enabling pin serving as the first input end of the second switch control chip through the phase-inverting circuit;
an output pin serving as an output end of the first switch control chip is connected with an input end of the first communication module; and an output pin serving as an output end of the second switch control chip is connected with an input end of the second communication module.
In a possible implementation manner, the output end of the power supply is respectively connected with the input pin of the first switch control chip and the input pin of the second switch control chip;
the power supply is used for outputting voltage to an output pin of the first switch control chip to supply power to the first communication module when an enable pin of the first switch control chip is connected with a high level; and when the enable pin of the second switch control chip is connected with a high level, outputting the voltage to the output pin of the second switch control chip to supply power for the second communication module.
In one possible implementation, the ground pin of the first switch control chip is grounded; and the grounding pin of the second switch control chip is grounded.
In one possible implementation, the inverter circuit includes: the circuit comprises a first resistor, a second resistor and a triode;
the second output end of the control power supply is connected with the input pin of the triode through the first resistor;
the collector of the triode is connected with an enabling pin of the second switch control chip;
the collector of the triode is connected with the output end of the power supply through a second resistor;
and the emitter of the triode is grounded.
In one possible embodiment, the power supply switching circuit further includes: a first capacitor and a second capacitor;
the first end of the first capacitor is connected with the output end of the power supply; the second end of the first capacitor is connected with the ground end;
the first end of the second capacitor is connected with the output end of the power supply; and the second end of the second capacitor is connected with the ground end.
In one possible embodiment, the power supply switching circuit further includes: a third capacitor and a fourth capacitor;
the first end of the third capacitor is connected with the grounding pin of the first switch control chip; the second end of the third capacitor is connected with an output pin of the first switch control chip;
the first end of the fourth capacitor is connected with the grounding pin of the first switch control chip; and the second end of the fourth capacitor is connected with an output pin of the first switch control chip.
In one possible embodiment, the power supply switching circuit further includes: a fifth capacitor and a sixth capacitor;
a first end of the fifth capacitor is connected with a grounding pin of the second switch control chip; a second end of the fifth capacitor is connected with an output pin of the second switch control chip;
the first end of the sixth capacitor is connected with the grounding pin of the second switch control chip; and the second end of the sixth capacitor is connected with an output pin of the second switch control chip.
In a possible implementation manner, the first communication module is a WIFI communication module, and the second communication module is a mobile communication module.
In one possible implementation, the first switch control chip is a processor of a TPS2065DDBVR model; the second switch control chip is a processor of the model TPS2065DDBVR.
The embodiment of the application provides a pair of power supply switching circuit of dual communication module, through controlling the power control switch chip, make only the module that communicates just can be in the operating condition that supplies power among first communication module and the second communication module, the communication module to not communicating breaks down the power supply and handles, thereby avoided two communication modules whether be in the condition that the operating condition that all can be in simultaneously supplies power in the communication state, therefore, the life of the chip of first communication module and second communication module has been increased, and the electric quantity consumption of the mainboard of first communication module and second communication module has been reduced.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 illustrates a schematic structural diagram of a power supply switching circuit of a dual communication module according to an embodiment of the present disclosure;
fig. 2 shows a schematic diagram of supplying power to a WIFI communication module according to an embodiment of the present application;
fig. 3 is a schematic diagram illustrating a 5G communication module according to an embodiment of the present disclosure;
fig. 4 is a schematic circuit diagram illustrating a power supply switching circuit of a dual communication module according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. Every other embodiment that one skilled in the art can obtain without inventive effort based on the embodiments of the present application falls within the scope of protection of the present application.
The embodiment of the application provides a power supply switching circuit of dual communication module can carry out outage processing to the communication module that does not communicate to increase the life of the chip of first communication module and second communication module, and reduced the electric quantity consumption of the mainboard of first communication module and second communication module.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a power supply switching circuit of a dual communication module according to an embodiment of the present disclosure.
As shown in fig. 1, a power supply switching circuit of a dual communication module provided in an embodiment of the present application includes: the control circuit comprises a control power supply 10, an inverter circuit 20, a first switch control chip 30, a second switch control chip 40, a power supply 50, a first communication module 60 and a second communication module 70;
a first output end of the control power supply 10 is connected with a first input end of the first switch control chip 30, and a second output end of the control power supply 10 is connected with a first input end of the second switch control chip 40 through the inverter circuit 20; the output end of the first switch control chip 30 is connected to the first communication module 60; the output end of the second switch control chip 40 is connected to the second communication module 70.
In addition, as an example, the output terminal of the power supply 50 is connected to the second input terminal of the first switch control chip 30 and the second input terminal of the second switch control chip 40, respectively.
As an example, the second input terminal of the first switch control chip 30 may be an input pin of the first switch control chip 30, and the second input terminal of the second switch control chip 40 may be an input pin of the second switch control chip 40.
When the control power supply 10 outputs a high level, the first switch control chip 30 is controlled to be turned on to supply power to the first communication module 60, and the second switch control chip 40 is controlled to be turned off through the inverter circuit 20 to stop supplying power to the second communication module 70;
when the control power supply 10 outputs a low level, the first switch control chip 30 is controlled to be turned off, so as to stop supplying power to the first communication module 60, and the second switch control chip 40 is controlled to be turned on through the inverter circuit 20, so as to supply power to the second communication module 70.
In specific implementation, the first communication module 60 may be a WIFI communication module, and the second communication module 70 may be a mobile communication module. As an example, the mobile communication module may be a 5G communication module.
Next, how the power supply switching circuit operates when the first communication module 60 is a WIFI communication module and the second communication module 70 is a 5G communication module will be described.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a power supply to a WIFI communication module according to an embodiment of the present disclosure.
As shown in fig. 2, when the control power supply 10 receives a WIFI communication request, the control power supply 10 outputs a high level signal H, the first switch control chip 30 turns on the first switch control chip 30 after receiving the high level signal H, at this time, the first switch control chip 30 may receive the voltage E from the power supply 50, after the first switch control chip 30 receives the voltage E of the power supply 50, the voltage E of the power supply 50 is output to the WIFI communication module 60, and the WIFI communication module 60 is powered on.
After the control power supply 10 outputs the high level signal H, the inverter circuit 20 converts the high level signal into the low level signal L after receiving the high level signal H, and then outputs the low level signal L to the second switch control chip 40, and after the second switch control chip 40 receives the low level signal L, the second switch control chip 40 is turned off, at this time, the second switch control chip 40 cannot receive the voltage from the power supply 50, and the 5G communication module 70 is powered off.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating a 5G communication module according to an embodiment of the present disclosure.
As shown in fig. 3, when the control power supply 10 receives a 5G communication request, the control power supply 10 outputs a low level signal L, and after the first switch control chip 30 receives the low level signal L, the first switch control chip 30 is turned off, at this time, the first switch control chip 30 cannot receive the voltage from the power supply 50, and the WIFI communication module 60 is powered off.
After the control power source 10 outputs the low level signal L, the inverter circuit 20 converts the low level signal L into the high level signal H after receiving the low level signal L, and then outputs the high level signal H to the second switch control chip 40, and after the second switch control chip 40 receives the high level signal H, the second switch control chip 40 turns on the second switch control chip 40, at this time, the second switch control chip 40 may receive the voltage E from the power supply 50, and after the second switch control chip 40 receives the voltage of the power supply 50, the second switch control chip 40 outputs the voltage E of the power supply 50 to the 5G communication module 70,5G communication module 70 for powering on.
Referring to fig. 4, fig. 4 is a schematic circuit diagram illustrating a power supply switching circuit of a dual communication module according to an embodiment of the present disclosure.
As shown in fig. 4, a first output terminal of the control power supply 10 is connected to an enable pin 4 as a first switch control chip 30; a second output end of the control power supply 10 is connected with an enable pin 4 as a first input end of the second switch control chip 40 through the inverter circuit 20;
the output end of the power supply 50 is respectively connected with the input pin 5 of the first switch control chip 30 and the input pin 5 of the second switch control chip 40;
the output pin 1 of the first switch control chip 30 is connected with the input end of the first communication module 60; the output pin 1 of the second switch control chip 40 is connected to the input end of the second communication module 70.
The grounding pin 2 of the first switch control chip 30 is grounded; the ground pin 2 of the second switch control chip 40 is grounded. The protection pin 3 of the first switch control chip 30 is grounded; the protection pin 3 of the second switch control chip 40 is grounded.
In specific implementation, the power supply 50 is configured to output a voltage to the output pin 1 of the first switch control chip 30 through the input pin 5 of the first switch control chip 30 to supply power to the first communication module 60 when the enable pin 4 of the first switch control chip 30 is connected to a high level; when the enable pin 4 of the second switch control chip 40 is connected to a high level, the voltage is output to the output pin 1 of the second switch control chip 40 through the input pin 5 of the second switch control chip 40 to supply power to the second communication module 70.
Here, the voltage output by the power supply 50 is a voltage that maintains the normal operation of the first communication module 60 and the second communication module 70, for example, if the voltage of the normal operation of the first communication module and the second communication module is 5V, the power supply outputs a voltage of 5V.
As an example, the inverter circuit 20 may include: the circuit comprises a first resistor R1, a second resistor R2 and a triode V.
A second output end of the control power supply 10 is connected with an input pin 1 of a triode V through the first resistor R1, and one end of a collector 3 of the triode V is connected with an enable pin 4 of a second switch control chip 40;
the other end of the collector 3 of the triode V is connected with the output end of the power supply 50 through a second resistor R2;
the emitter 2 of the triode V is grounded.
Further, the power supply switching circuit further includes: a first capacitor C1 and a second capacitor C2;
a first end of the first capacitor C1 is connected with an output end of the power supply 50; the second end of the first capacitor C1 is connected with the ground end;
a first end of the second capacitor C2 is connected to an output end of the power supply 50; and the second end of the second capacitor C2 is connected with the ground end.
Here, the first capacitor C1 and the second capacitor C2 are used for filtering the voltage output by the power supply 50 and maintaining the output voltage of the power supply 50 stable.
The power supply switching circuit further includes: a third capacitor C3 and a fourth capacitor C4;
a first end of the third capacitor C3 is connected to the ground pin 2 of the first switch control chip 30; a second end of the third capacitor C3 is connected to the output pin 1 of the first switch control chip 30;
a first end of the fourth capacitor C4 is connected to the ground pin 2 of the first switch control chip 30; a second end of the fourth capacitor C4 is connected to the output pin 1 of the first switch control chip 30.
Here, the third capacitor C3 and the fourth capacitor C4 are used for filtering the voltage input to the first communication module 50.
The power supply switching circuit further includes: a fifth capacitor C5 and a sixth capacitor C6;
a first end of the fifth capacitor C5 is connected to the ground pin 2 of the second switch control chip 40; a second end of the fifth capacitor C5 is connected to the output pin 1 of the second switch control chip 40;
a first end of the sixth capacitor C6 is connected to the ground pin 2 of the second switch control chip 40; a second end of the sixth capacitor C6 is connected to the output pin 1 of the second switch control chip 40.
Here, the fifth capacitor C5 and the sixth capacitor C6 are used for filtering the voltage input to the second communication module 60.
When the WIFI communication module is implemented specifically, if the first communication module is a WIFI communication module, the second communication module is a 5G communication module, when the control power supply 10 receives a WIFI communication signal, the control power supply 10 outputs a high-level signal, the enable pin 4 of the first switch control chip controls the first switch control chip 30 to be turned on after receiving the high-level signal sent by the control power supply 10, after the first switch control chip 30 is turned on, the input pin 5 of the first switch control chip receives a voltage which is filtered by the first capacitor C1 and the second capacitor C2 and maintains the normal work of the WIFI communication module 60, then the voltage which ensures the normal work of the WIFI is output through the output pin 1, and after the voltage is filtered by the third capacitor C3 and the fourth capacitor C4, the filtered voltage is output to the WIFI communication module, so that the power supply of the WIFI communication module 60 is ensured.
When the control power supply 10 receives the WIFI communication signal and outputs a high level signal, the triode V receives the high level signal sent by the control power supply 10, after the triode V receives the high level signal, the triode V converts the high level signal output by the control power supply 10 into a low level signal, and then outputs the low level signal to the enable pin 4 of the second switch control chip 40 through the collector 3, and after receiving the low level signal, the enable pin 4 controls the second switch control chip 40 to close.
When the control power supply 10 receives a 5G communication signal, the control power supply 10 outputs a low level signal, and the enable pin 4 of the first switch control chip 30 controls the first switch control chip 30 to be turned off after receiving the low level signal sent by the control power supply 10;
when the control power supply 10 receives the 5G communication signal and outputs a low level signal, the triode V receives a low level signal sent by the control power supply 10, after the triode V receives the low level signal, the triode V converts the low level signal into a high level signal, then the high level signal is output to the enable pin 4 of the second switch control chip 40 through the collector 3, after the enable pin 4 receives the high level signal, the second switch control chip 40 is controlled to be turned on, after the second switch control chip 40 is turned on, the voltage which is filtered by the first capacitor C1 and the second capacitor C2 and maintains the normal operation of the 5G communication module 70 is received through the input pin 5 of the second switch control chip, then the voltage which ensures the normal operation of the 5G communication module 70 is output through the output pin 1 of the second switch control chip, and after the voltage is filtered by the fifth capacitor C5 and the sixth capacitor C6, the filtered voltage is output to the 5G communication module 70, so that the power supply of the 5G communication module 70 is ensured.
In practical implementation, as an example, the resistance of the first resistor R1 may be 4.7K, the resistance of the second resistor R2 may be 4.7K, the capacitance of the first capacitor C1 may be 10 μ/16V, the capacitance of the second capacitor C2 may be 100n/16V, the capacitance of the third capacitor C3 may be 10 μ/16V, the capacitance of the fourth capacitor C4 may be 100n/16V, the capacitance of the fifth capacitor C5 may be 10 μ/16V, and the capacitance of the sixth capacitor C6 may be 100n/16V.
As an example, the first switch control chip may select a TPS2065DDBVR type processor, and the second switch control chip may select a TPS2065DDBVR type processor.
By way of example, the triode may be a 2PC4617Q type triode.
The embodiment of the application provides a pair of communication module's power supply switching circuit can cut off the power supply to the communication module that does not communicate and handle to avoid two communication modules whether be in communication state and all can be in the condition of power supply operating condition simultaneously, consequently, increased the life of the chip of first communication module and second communication module, and reduced the electric quantity consumption of the mainboard of first communication module and second communication module.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used to illustrate the technical solutions of the present application, but not to limit the technical solutions, and the scope of the present application is not limited to the above-mentioned embodiments, although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the exemplary embodiments of the present application, and are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A power supply switching circuit of a dual communication module comprises: control power supply, inverter circuit, first switch control chip, second switch control chip, first communication module and second communication module, its characterized in that:
the first output end of the control power supply is connected with the first input end of the first switch control chip, and the second output end of the control power supply is connected with the first input end of the second switch control chip through the phase-inverting circuit; the output end of the first switch control chip is connected with the first communication module; the output end of the second switch control chip is connected with the second communication module;
when the control power supply outputs a high level, the first switch control chip is controlled to be turned on so as to supply power to the first communication module, and meanwhile, the second switch control chip is controlled to be turned off through the phase-inverting circuit so as to stop supplying power to the second communication module;
when the control power supply outputs a low level, the first switch control chip is controlled to be closed, so that power supply for the first communication module is stopped, and meanwhile, the second switch control chip is controlled to be opened through the phase-reversing circuit, so that power supply for the second communication module is realized.
2. The power supply switching circuit according to claim 1, wherein the first output terminal of the control power supply is connected to an enable pin as the first input terminal of the first switch control chip; the second output end of the control power supply is connected with an enabling pin serving as the first input end of the second switch control chip through the phase-inverting circuit;
an output pin serving as an output end of the first switch control chip is connected with an input end of the first communication module; and an output pin serving as an output end of the second switch control chip is connected with an input end of the second communication module.
3. The power supply switching circuit according to claim 2, wherein an output terminal of the power supply is connected to an input pin of the first switch control chip and an input pin of the second switch control chip, respectively;
the power supply is used for outputting voltage to an output pin of the first switch control chip to supply power to the first communication module when an enable pin of the first switch control chip is connected with a high level; and when the enable pin of the second switch control chip is connected with a high level, outputting the voltage to the output pin of the second switch control chip to supply power for the second communication module.
4. The power supply switching circuit according to claim 1, wherein a ground pin of the first switch control chip is grounded; and the grounding pin of the second switch control chip is grounded.
5. The power supply switching circuit according to claim 3, wherein the inverter circuit comprises: the circuit comprises a first resistor, a second resistor and a triode;
the second output end of the control power supply is connected with the input pin of the triode through the first resistor;
the collector of the triode is connected with an enabling pin of the second switch control chip;
the collector of the triode is connected with the output end of the power supply through a second resistor;
and the emitter of the triode is grounded.
6. The power supply switching circuit according to claim 3, further comprising: a first capacitor and a second capacitor;
the first end of the first capacitor is connected with the output end of the power supply; the second end of the first capacitor is connected with the ground end;
the first end of the second capacitor is connected with the output end of the power supply; and the second end of the second capacitor is connected with the ground end.
7. The power supply switching circuit according to claim 4, further comprising: a third capacitor and a fourth capacitor;
the first end of the third capacitor is connected with the grounding pin of the first switch control chip; the second end of the third capacitor is connected with an output pin of the first switch control chip;
the first end of the fourth capacitor is connected with the grounding pin of the first switch control chip; and the second end of the fourth capacitor is connected with an output pin of the first switch control chip.
8. The power supply switching circuit according to claim 4, further comprising: a fifth capacitor and a sixth capacitor;
the first end of the fifth capacitor is connected with the grounding pin of the second switch control chip; a second end of the fifth capacitor is connected with an output pin of the second switch control chip;
the first end of the sixth capacitor is connected with the grounding pin of the second switch control chip; and the second end of the sixth capacitor is connected with an output pin of the second switch control chip.
9. The power switching circuit of claim 1, wherein the first communication module is a WIFI communication module and the second communication module is a mobile communication module.
10. The power supply switching circuit according to claim 1, wherein the first switch control chip is of a model number TPS2065DDBVR; the model of the second switch control chip is TPS2065DDBVR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210745559.1A CN114826796B (en) | 2022-06-29 | 2022-06-29 | Power supply switching circuit of dual-communication module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210745559.1A CN114826796B (en) | 2022-06-29 | 2022-06-29 | Power supply switching circuit of dual-communication module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104199338B (en) * | 2014-08-04 | 2017-03-15 | 珠海中慧微电子有限公司 | A kind of communicating control method of RS485 communicating circuits |
| CN104516388A (en) * | 2014-12-16 | 2015-04-15 | 珠海格力电器股份有限公司 | Communication circuit and air conditioner of self-adaptation power supply |
| CN204496230U (en) * | 2015-04-02 | 2015-07-22 | 青岛海信电器股份有限公司 | A kind of two MCU control switching circuit and display device |
| CN208241574U (en) * | 2018-06-07 | 2018-12-14 | 金卡智能集团股份有限公司 | Power control circuit for Internet of Things instrument communication module group |
| CN210078688U (en) * | 2018-12-03 | 2020-02-18 | 天博电子信息科技有限公司 | Fire hydrant data transmission module, system and fire hydrant |
| CN111342541B (en) * | 2018-12-19 | 2021-04-16 | 智原微电子(苏州)有限公司 | Power supply switching circuit |
| CN210038908U (en) * | 2019-04-19 | 2020-02-07 | 深圳市威赛诺科技有限公司 | Control circuit of touch panel management intelligent lock power supply |
| CN110191449B (en) * | 2019-05-29 | 2022-02-18 | 上海庆科信息技术有限公司 | Communication mode switching method, device, storage medium, processor and system |
| CN113726622A (en) * | 2020-05-26 | 2021-11-30 | 大富科技(安徽)股份有限公司 | Communication equipment, tower amplifier equipment and automatic switching circuit thereof |
| CN114499480A (en) * | 2021-12-14 | 2022-05-13 | 上海华兴数字科技有限公司 | Power switch control assembly, method and device and operation machine |
| CN216852372U (en) * | 2022-01-14 | 2022-06-28 | 广东纯米电器科技有限公司 | Power consumption control circuit and household appliance |
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