CN112306208A - Power supply control circuit, communication module and electronic equipment - Google Patents
Power supply control circuit, communication module and electronic equipment Download PDFInfo
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- CN112306208A CN112306208A CN202011129054.XA CN202011129054A CN112306208A CN 112306208 A CN112306208 A CN 112306208A CN 202011129054 A CN202011129054 A CN 202011129054A CN 112306208 A CN112306208 A CN 112306208A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
Abstract
The application relates to a power supply control circuit, a communication module and electronic equipment. The power supply control circuit comprises a voltage division circuit, a voltage stabilizing circuit, a voltage comparison circuit and a switch circuit, wherein a first input end of the voltage comparison circuit is connected with a power supply end of the communication module through the voltage division circuit, a second input end of the voltage comparison circuit is connected with the power supply end through the voltage stabilizing circuit, an output end of the voltage comparison circuit is connected with a control end of the switch circuit, an input end of the switch circuit is connected with the power supply end, and an output end of the switch circuit is connected with a; when the voltage value of the first input end is smaller than the voltage value of the second input end, the voltage comparison circuit outputs a second level signal to the control end of the switch circuit, so that the switch circuit is switched on, and the power supply end supplies power to the supplied component. By adopting the power-saving control method and device, the effect of power saving can be achieved.
Description
Technical Field
The present application relates to the field of electronic technologies, and in particular, to a power supply control circuit, a communication module, and an electronic device.
Background
The communication module plays an important role in the Internet of things, converts data into a signal capable of being transmitted and transmits the signal out through a wireless network; according to network division, the communication modules have different categories such as 2G, 4G, NB-IoT (Narrow Band Internet of Things), WiFi and Bluetooth.
For a communication module including a CPU, the CPU and components in the communication module are generally powered by a main Power pin, for example, a register inside a 4G PA (Power Amplifier) is also powered by a voltage of the main Power pin, and the register controls devices such as a switch inside the PA. Taking 4G PA as an example, since the voltage supported by the communication module is basically 3.135V (volt) -4.4V, when the PA is in connection operation, if the voltage of the total power pin suddenly drops below 3.135V, the CPU directly powers off and shuts down, and the shutdown instruction is not issued in time, the voltage of the total power pin can still continue to supply power to the internal register of the PA, so that the communication module in shutdown state still has a large current consumption and a large power consumption.
Disclosure of Invention
In view of the above, it is desirable to provide a power supply control circuit, a communication module and an electronic device that can save power.
A power supply control circuit comprises a voltage division circuit, a voltage stabilizing circuit, a voltage comparison circuit and a switch circuit, wherein a first input end of the voltage comparison circuit is connected with a power supply end of a communication module through the voltage division circuit, a second input end of the voltage comparison circuit is connected with the power supply end through the voltage stabilizing circuit, an output end of the voltage comparison circuit is connected with a control end of the switch circuit, an input end of the switch circuit is connected with the power supply end, and an output end of the switch circuit is connected with a supplied power component of the communication module;
the voltage output by the power supply end is divided by the voltage dividing circuit and then output to a first input end of the voltage comparison circuit; the voltage stabilizing circuit is connected with the voltage output by the power supply end and then outputs a preset voltage to a second input end of the voltage comparison circuit, the voltage comparison circuit outputs a first level signal to the control end of the switch circuit when the voltage value of the first input end is larger than or equal to the voltage value of the second input end, and outputs a second level signal to the control end of the switch circuit when the voltage value of the first input end is smaller than the voltage value of the second input end;
the switch circuit is switched on when the control end is connected with the first level signal, the power supply end supplies power to the supplied power assembly, the switch circuit is switched off when the control end is connected with the second level signal, and the power supply end stops supplying power to the supplied power assembly.
The power supply control circuit comprises a voltage division circuit, a voltage stabilizing circuit, a switch circuit and a power supply end, wherein the voltage division circuit and the voltage stabilizing circuit are adopted to respectively adjust the voltage output by the power supply end of the communication module and then output the voltage to the voltage comparison circuit, the voltage comparison circuit compares the voltage output by the voltage division circuit after voltage division with the voltage output by the voltage stabilizing circuit, and the on-off of the switch circuit is controlled according to the comparison result, so that whether the power supply end outputs the voltage to a supplied component of the communication module or not is controlled, specifically, if the voltage output by the voltage division circuit after voltage division is greater than or equal to the preset voltage output by the voltage stabilizing circuit, the switch circuit is controlled to be switched on, the power supply end supplies power to the supplied component, if the voltage output by the voltage division circuit. Therefore, the power-saving device can timely close the supplied power assembly after the voltage output by the power supply end is lower than a voltage, avoids the situation that the supplied power assembly continues to consume power when the voltage is low, and achieves the effect of power saving.
In one embodiment, the voltage divider circuit includes a first resistor and a second resistor, the first resistor and the second resistor are connected in series, and after the first resistor and the second resistor are connected in series, one end of the first resistor and the second resistor are connected to the power supply terminal, and the other end of the first resistor and the second resistor are connected to ground, and a common terminal of the first resistor and the second resistor is connected to a first input terminal of the voltage comparator circuit.
In one embodiment, the preset voltage is 1.8V, and a ratio of the resistance values of the first resistor and the second resistor is less than 0.74.
In one embodiment, the voltage stabilizing circuit comprises a low dropout linear regulator, wherein the input end of the low dropout linear regulator is connected with the power supply end, and the output end of the low dropout linear regulator is connected with the second input end of the voltage comparison circuit.
In one embodiment, the voltage comparison circuit comprises a comparator, a positive phase input end of the comparator is used as a first input end of the voltage comparison circuit and is used for being connected with the power supply end through the voltage division circuit, and a negative phase input end of the comparator is used as a second input end of the voltage comparison circuit and is used for being connected with the power supply end through the voltage stabilizing circuit.
In one embodiment, the switch circuit includes a PNP switch tube, a control terminal of the PNP switch tube is used as a control terminal of the switch circuit to connect to the output terminal of the voltage comparison circuit, an input terminal of the PNP switch tube is used as an input terminal of the switch circuit to connect to the power supply terminal, and an output terminal of the PNP switch tube is used as an output terminal of the switch circuit to connect to the powered component.
A communication module comprises a power supply end, a supplied component and the power supply control circuit, wherein the power supply control circuit is connected with the power supply end and the supplied component.
The communication module adopts the power supply control circuit, so that the power consumption can be reduced, and the power saving effect is achieved.
In one embodiment, the communication module further includes a CPU, and the power supply terminal is connected to the CPU.
In one embodiment, the communication module further includes a power management integrated circuit, and the CPU is connected to the power supply terminal through the power management integrated circuit.
An electronic device comprises a device body and the communication module, wherein the communication module is arranged on the device body.
Above-mentioned electronic equipment owing to adopted the communication module that can the power saving, and in the same way, can reduce the electric quantity loss of equipment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a power supply circuit diagram of a conventional communication module;
FIG. 2 is a circuit schematic of a power control circuit in one embodiment;
fig. 3 is a schematic circuit diagram of a communication module according to an embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first resistance may be referred to as a second resistance, and similarly, a second resistance may be referred to as a first resistance, without departing from the scope of the present application. The first resistance and the second resistance are both resistances, but they are not the same resistance.
It is to be understood that "connection" in the following embodiments is to be understood as "electrical connection", "communication connection", and the like if the connected circuits, modules, units, and the like have communication of electrical signals or data with each other.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
The communication module in the prior art has a problem of high power consumption, and the inventor finds that the problem is caused by that, as shown in fig. 1, a total power supply pin Vbat of the conventional communication module supplies power to a CPU and a component 4G PA in the communication module, and in a working state, if the voltage of the total power supply pin suddenly drops to be lower than 3.135V, the CPU is powered off and shut down directly, and the voltage of the total power supply pin can still supply power to a register inside the PA, so that the communication module in the shutdown state still has a large current consumption and a large power consumption. For the above reasons, the present invention provides a scheme that can save power.
Referring to fig. 2, in one embodiment, a power supply control circuit is provided, including a voltage dividing circuit 110, a voltage stabilizing circuit 120, a voltage comparing circuit 130, and a switching circuit 140; a first input terminal of the voltage comparison circuit 130 is connected to the power supply terminal Vbat of the communication module through the voltage divider circuit 110, a second input terminal of the voltage comparison circuit 130 is connected to the power supply terminal Vbat through the voltage regulator circuit 120, and an output terminal of the voltage comparison circuit 130 is connected to the control terminal of the switch circuit 140. The input end of the switch circuit 140 is connected to the power supply end Vbat, and the output end of the switch circuit 140 is connected to the powered component 200 of the communication module. The power supply terminal Vbat of the communication module is a total power supply pin for accessing an external voltage to supply power to a CPU and other powered components inside the communication module, and may be, for example, a voltage input pin of the communication module. The power-supplied component 200 of the communication module is a component in the communication module that shares the power supply terminal Vbat with the CPU, and may be a power amplifier, for example.
The voltage output by the power supply terminal Vbat is divided by the voltage dividing circuit 110 and then output to a first input terminal of the voltage comparison circuit 130, and the voltage stabilizing circuit 120 outputs a preset voltage to a second input terminal of the voltage comparison circuit 130 after accessing the voltage output by the power supply terminal Vbat; specifically, the voltage stabilizing circuit 120 steps down the input voltage and outputs a preset voltage with a stable voltage value to the second input terminal of the voltage comparing circuit 130.
The voltage comparison circuit 130 outputs a first level signal to the control terminal of the switch circuit 140 when the voltage value of the first input terminal is greater than or equal to the voltage value of the second input terminal, and outputs a second level signal to the control terminal of the switch circuit 140 when the voltage value of the first input terminal is less than the voltage value of the second input terminal. The switch circuit 140 is turned on when the control terminal is connected to the first level signal, and the power supply terminal Vbat supplies power to the powered component 200, and the switch circuit 140 is turned off when the control terminal is connected to the second level signal, and the power supply terminal Vbat stops supplying power to the powered component 200. That is, if the voltage divided by the voltage dividing circuit 110 and outputted to the voltage comparing circuit 130 is greater than or equal to the preset voltage stably outputted by the voltage stabilizing circuit 120, the power supply terminal Vbat supplies power to the powered component 200, and if the voltage divided by the voltage dividing circuit 110 and outputted to the voltage comparing circuit 130 is less than the preset voltage, the power supply terminal Vbat stops supplying power to the powered component 200.
The power supply control circuit adjusts the voltage output by the power supply terminal Vbat of the communication module by using the voltage dividing circuit 110 and the voltage stabilizing circuit 120, and outputs the adjusted voltage to the voltage comparing circuit 130, the voltage comparing circuit 130 compares the voltage output by the voltage dividing circuit 110 after voltage division with the voltage output by the voltage stabilizing circuit 120, and controls the on/off of the switch circuit 140 according to the comparison result, so as to control whether the power supply terminal Vbat outputs the voltage to the powered component 200 of the communication module, specifically, if the voltage output by the voltage dividing circuit 110 after voltage division is greater than or equal to the preset voltage output by the voltage stabilizing circuit 120, the switch circuit 140 is controlled to be on, the power supply terminal Vbat supplies power to the powered component 200, and if the voltage output by the voltage dividing circuit 110 after voltage division is less than the preset voltage, the switch circuit 140 is controlled to be off, and the power supply terminal Vbat stops supplying power. Therefore, the powered component 200 can be timely turned off after the voltage output by the power supply end Vbat is lower than a voltage, the situation that the powered component 200 continues to consume power when the voltage is low is avoided, and the effect of saving power is achieved.
Because the voltage output by the power supply terminal Vbat is lower than the preset threshold, the CPU is powered off, and the voltage dividing magnitude of the voltage dividing circuit 110 can be specifically set, so that the voltage output to the voltage comparison circuit 130 after the voltage dividing of the preset threshold is met is greater than or equal to the preset voltage, and therefore, the power is supplied to the powered component 200 when the voltage output by the power supply terminal Vbat is greater than or equal to the preset threshold, and the power is stopped being supplied to the powered component 200 when the voltage output by the power supply terminal Vbat is less than the preset threshold, so that the powered component is accurately stopped working when the CPU is powered off, and power is saved in time.
In one embodiment, the voltage divider circuit 110 includes a first resistor R1 and a second resistor R2, wherein the first resistor R1 and the second resistor R2 are connected in series, and are connected in series with one end connected to the power supply terminal Vbat and the other end connected to ground. Specifically, one end of the first resistor R1 is connected to the power supply terminal Vbat, the other end of the first resistor R1 is connected to one end of the second resistor R2, and the other end of the second resistor R2 is grounded. The common terminal of the first resistor R1 and the second resistor R2 is connected to the first input terminal of the voltage comparison circuit 130. The voltage division is carried out by adopting a structure that two resistors are connected in series, and the structure is simple. It is understood that in other embodiments, the voltage divider circuit 110 may also adopt other structures that can implement voltage division.
In one embodiment, the predetermined voltage is 1.8V, and the ratio of the resistances of the first resistor and the second resistor is less than 0.74. Specifically, R1/R2< 0.74.
Generally, when the voltage output by the power supply terminal Vbat is lower than 3.135V, the CPU is powered down and shut down, i.e., the preset threshold is usually 3.135V. Substituting 3.135V into the condition for turning on the switch circuit 140 (at this time, the power supply terminal Vbat supplies power to the powered component 200), so as to satisfy 3.135V >1.8V (R1+ R2)/R2, and after simplification: R1/R2< 0.74. By setting the voltage stabilizing circuit 120 to output 1.8V in a voltage stabilizing manner and correspondingly adopting the first resistor and the second resistor with the resistance value ratio smaller than 0.74, the power supply to the powered component 200 can be stopped when the voltage output by the power supply end Vbat is larger than 3.135V and the power supply to the powered component 200 is stopped when the voltage output by the power supply end Vbat is smaller than 3.135V, so that the powered component can be stopped working accurately when the CPU is shut down, and power can be saved in time.
In one embodiment, the voltage stabilizing circuit 120 comprises a low dropout linear regulator (LDO), an input terminal of the LDO is connected to the supply terminal Vbat, and an output terminal of the LDO is connected to a second input terminal of the voltage comparing circuit 130. The output voltage of the low dropout linear regulator is stable, and the input voltage can be subjected to voltage reduction regulation and then is output in a voltage stabilizing way; the voltage outputted from the voltage stabilizing circuit 120 is used as a reference voltage for comparison, and the voltage is compared with the voltage outputted after voltage division by the voltage dividing circuit 110 based on the stable voltage, so that the accuracy of voltage comparison analysis can be improved.
In one embodiment, the voltage comparison circuit 130 includes a comparator, a positive input terminal of which is used as a first input terminal of the voltage comparison circuit 130 for connecting the power supply terminal Vbat through the voltage dividing circuit 110, and an opposite input terminal of which is used as a second input terminal of the voltage comparison circuit 130 for connecting the power supply terminal Vbat through the voltage stabilizing circuit 120. And the comparator is adopted to compare the voltage, so that the structure is simple. It is understood that in other embodiments, the voltage comparison circuit 130 may also adopt other structures that can implement voltage comparison.
In one embodiment, the switch circuit 140 includes a PNP switch, a control terminal of the PNP switch is used as a control terminal of the switch circuit 140 to connect to the output terminal of the voltage comparison circuit 130, an input terminal of the PNP switch is used as an input terminal of the switch circuit 140 to connect to the power supply terminal Vbat, and an output terminal of the PNP switch is used as an output terminal of the switch circuit 140 to connect to the powered component 200. Specifically, the PNP switch tube is a triode. By adopting the PNP switching tube, the on-off switching is carried out according to the first level signal and the second level signal, so that the switching effect is realized, the power supply end Vbat is controlled to output or not output voltage to the powered assembly 200, the structure is simple, and the realization is easy; specifically, the first level signal and the second level signal are one of a low level and a high level, respectively. It is understood that in other embodiments, the switching circuit 140 may also have other structures for performing the switching function, for example, the switching circuit 140 may include an NPN switch tube.
To explain a detailed embodiment, the power supply end Vbat of the power supply control circuit is input to the LDO, and the LDO selects a reference voltage with a stable output of 1.8V to supply to the inverting input end of the voltage comparator; the supply terminal Vbat is input to the non-inverting input terminal of the voltage comparator through a voltage dividing circuit 110 composed of a first resistor R1 and a second resistor R2.
When V + > V- (the voltage of the positive phase input end is greater than the voltage of the negative phase input end), the output of the voltage comparator is positive, the voltage of the power supply end is greater than 1.8V (R1+ R2)/R2, the PNP switching tube is conducted, the power supply end Vbat directly supplies power to the 4G PA, and the 4G PA works normally.
When V + < V-, the output of the voltage comparator is 0, and at the moment, the voltage of the power supply end is <1.8V (R1+ R2)/R2PNP switch tube is not conducted, and the 4G PA is directly powered down.
Because the voltage of the power supply end is less than 3.135V, the CPU is powered off, after the power supply end is substituted into the formula, the resistance relation between the first resistor R1 and the second resistor R2 should meet 3.135V/1.8V > (R1+ R2)/R2, after simplification: R1/R2< 0.74. The power supply control circuit can solve the problem that when the voltage of the power supply end Vbat is lower than 3.135V, the CPU is directly powered off and shut down, and the 4G PA is not timely shut down and still continuously consumes power, thereby achieving the purpose of power saving.
In one embodiment, a communication module is provided, which includes a power supply terminal Vbat, a powered component 200, and the power supply control circuit described above, where the power supply control circuit connects the power supply terminal Vbat and the powered component 200. The structure of the power supply control circuit is as described above, and is not described herein.
In particular, the powered component 200 may be a power amplifier, such as a 4G PA.
The communication module adopts the power supply control circuit, so that the power consumption can be reduced, and the power saving effect is achieved.
In one embodiment, referring to fig. 3, the communication module further includes a CPU, and the power supply terminal Vbat is connected to the CPU. Namely, the power supply terminal Vbat is used for supplying power to both the CPU and the powered component 200, and when the CPU is powered off, the power supply control circuit can disconnect the loop of the power supply terminal Vbat for supplying power to the powered component 200, thereby achieving the purpose of power saving.
In one embodiment, as shown in fig. 3, the communication module further includes a Power Management Integrated Circuit (PMIC), and the CPU is connected to the power supply terminal Vbat through the PMIC. The power management integrated circuit is adopted to manage the power of the CPU, and the reliability is high.
In one embodiment, an electronic device is provided, which includes a device body and the communication module described above, and the communication module is disposed on the device body. The device body is a basic component of the electronic device, for example, the device body can comprise a shell, a display screen and the like, the shell and the display screen are assembled to form an external frame of the electronic device, and the communication module can be arranged in the shell.
In one embodiment, the electronic device further includes a power circuit, where the power circuit is connected to the power terminal Vbat of the communication module, and is configured to output a voltage to the power terminal Vbat, so as to supply power to the communication module.
The electronic equipment adopts the communication module capable of saving electricity, and can reduce the electric quantity loss of the equipment in the same way.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A power supply control circuit is characterized by comprising a voltage division circuit, a voltage stabilizing circuit, a voltage comparison circuit and a switch circuit, wherein a first input end of the voltage comparison circuit is connected with a power supply end of a communication module through the voltage division circuit, a second input end of the voltage comparison circuit is connected with the power supply end through the voltage stabilizing circuit, an output end of the voltage comparison circuit is connected with a control end of the switch circuit, an input end of the switch circuit is connected with the power supply end, and an output end of the switch circuit is connected with a powered component of the communication module;
the voltage output by the power supply end is divided by the voltage dividing circuit and then output to a first input end of the voltage comparison circuit; the voltage stabilizing circuit is connected with the voltage output by the power supply end and then outputs a preset voltage to a second input end of the voltage comparison circuit, the voltage comparison circuit outputs a first level signal to the control end of the switch circuit when the voltage value of the first input end is larger than or equal to the voltage value of the second input end, and outputs a second level signal to the control end of the switch circuit when the voltage value of the first input end is smaller than the voltage value of the second input end;
the switch circuit is switched on when the control end is connected with the first level signal, the power supply end supplies power to the supplied power assembly, the switch circuit is switched off when the control end is connected with the second level signal, and the power supply end stops supplying power to the supplied power assembly.
2. The power supply control circuit according to claim 1, wherein the voltage divider circuit comprises a first resistor and a second resistor, the first resistor and the second resistor are connected in series, and after the first resistor and the second resistor are connected in series, one end of the first resistor and the second resistor are connected to the power supply terminal, and the other end of the first resistor and the second resistor are connected to ground, and a common terminal of the first resistor and the second resistor is connected to a first input terminal of the voltage comparator circuit.
3. The power supply control circuit according to claim 2, wherein the predetermined voltage is 1.8V, and a ratio of the resistances of the first resistor and the second resistor is less than 0.74.
4. The power supply control circuit of claim 1, wherein the voltage stabilizing circuit comprises a low dropout linear regulator, an input terminal of the low dropout linear regulator is connected to the power supply terminal, and an output terminal of the low dropout linear regulator is connected to the second input terminal of the voltage comparison circuit.
5. The power supply control circuit according to claim 1, wherein the voltage comparison circuit comprises a comparator, a positive input terminal of the comparator is used as a first input terminal of the voltage comparison circuit for connecting the power supply terminal through the voltage division circuit, and a negative input terminal of the comparator is used as a second input terminal of the voltage comparison circuit for connecting the power supply terminal through the voltage stabilizing circuit.
6. The power supply control circuit according to claim 1, wherein the switch circuit comprises a PNP switch tube, a control terminal of the PNP switch tube is used as the control terminal of the switch circuit to connect to the output terminal of the voltage comparison circuit, an input terminal of the PNP switch tube is used as the input terminal of the switch circuit to connect to the power supply terminal, and an output terminal of the PNP switch tube is used as the output terminal of the switch circuit to connect to the supplied power component.
7. A communication module comprising a power supply terminal, a powered component, and a power supply control circuit as claimed in any one of claims 1 to 6, the power supply control circuit connecting the power supply terminal and the powered component.
8. The communication module according to claim 7, further comprising a CPU, wherein the power supply terminal is connected to the CPU.
9. The communication module of claim 8, further comprising a power management integrated circuit, wherein the CPU is connected to the power supply terminal through the power management integrated circuit.
10. An electronic device comprising a device body and the communication module according to any one of claims 7 to 9, wherein the communication module is provided to the device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011129054.XA CN112306208A (en) | 2020-10-21 | 2020-10-21 | Power supply control circuit, communication module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011129054.XA CN112306208A (en) | 2020-10-21 | 2020-10-21 | Power supply control circuit, communication module and electronic equipment |
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| CN112306208A true CN112306208A (en) | 2021-02-02 |
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| CN202011129054.XA Pending CN112306208A (en) | 2020-10-21 | 2020-10-21 | Power supply control circuit, communication module and electronic equipment |
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