WO2018006593A1 - Wifi的供电切换方法、电路及装置、存储介质 - Google Patents

Wifi的供电切换方法、电路及装置、存储介质 Download PDF

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Publication number
WO2018006593A1
WO2018006593A1 PCT/CN2017/073089 CN2017073089W WO2018006593A1 WO 2018006593 A1 WO2018006593 A1 WO 2018006593A1 CN 2017073089 W CN2017073089 W CN 2017073089W WO 2018006593 A1 WO2018006593 A1 WO 2018006593A1
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WIPO (PCT)
Prior art keywords
wifi
circuit
power supply
frequency band
battery
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PCT/CN2017/073089
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English (en)
French (fr)
Inventor
雷强
Original Assignee
中兴通讯股份有限公司
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Priority to US16/315,848 priority Critical patent/US20190313339A1/en
Publication of WO2018006593A1 publication Critical patent/WO2018006593A1/zh

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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
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular to a wireless fidelity (WIFI) power switching method, circuit and device, and storage medium.
  • WIFI wireless fidelity
  • the WIFI channel in a single 2.4G band is particularly crowded and the interference increases.
  • the corresponding circuit of the power amplifier (PA, Power Amplifier) is for the method to transmit signals, and the 5.8G band WIFI is generated in this background, which is to solve the problem of congestion in the 2.4G band.
  • the power supply of the two frequency bands PA is provided, and the power consumption is inevitably increased, which puts a test on the design of the WIFI device, especially when the adapter is switched to the battery power supply moment, the instantaneous surge current of the battery is too large, causing the battery voltage to drop, the device Power down and shutdown.
  • it is necessary to increase the power supply capacity of the battery which can be achieved by increasing the cost and volume, but for a general lithium battery, an increase in the power supply capacity means an increase in volume and thickness. For lithium ion polymer batteries, this increases in cost.
  • the scheme realizes the smooth switching of the adapter to the battery power supply under the WIFI dual-frequency power supply without increasing the cost and volume of the battery.
  • the related art solution can achieve a smooth transition from adapter to battery power switching by increasing the capacity of the battery and the instantaneous current supply capability.
  • an increase in power supply capability means an increase in volume and thickness.
  • lithium ion polymer batteries it means an increase in cost.
  • the embodiment of the invention provides a WIFI power supply switching method, circuit and device, and a storage medium, so as to at least solve the problem that the battery can only increase the battery capacity in order to ensure smooth switching of the external circuit to the battery.
  • a power supply switching method for a WIFI including: detecting a main current of a battery of the terminal to a main board when detecting that the terminal is disconnected from an external power supply circuit, and determining whether the main current is Exceeding a first preset threshold, wherein the battery supplies power to the WIFI power amplifier PA of the first frequency band and the WIFI PA of the second frequency band in the terminal; when determining that the primary current exceeds the first preset threshold Disconnecting the battery to supply power to the WIFI PA of the first frequency band.
  • the method further includes: detecting the main current; and when the main current is less than or equal to a second preset threshold And turning on the battery to supply power to the WIFI PA in the first frequency band.
  • the method further includes: reducing power of the WIFI PA of the second frequency band.
  • the WIFI PA of the first frequency band is a WIFI PA of a 5.8 GHz band
  • the WIFI PA of the second frequency band is a WIFI PA of a 2.4 GHz band.
  • a WIFI power supply switching circuit which is applied to a terminal using dual-band WIFI, and includes: a first detecting circuit configured to be disconnected when the terminal is disconnected from an external power supply circuit, Detecting a main current of the battery of the terminal to the main board and determining whether the main current exceeds a first preset threshold, and sending a first signal to the control circuit when the main current exceeds the first preset threshold, where The battery supplies power to the WIFI PA of the first frequency band and the WIFI PA of the second frequency band in the terminal; the control circuit is connected to the first detection circuit, and configured to pass the first signal to the power supply switch circuit Sending a first control signal to control disconnection of the power supply switch circuit; the power supply switch circuit being connected to the control circuit, configured Disconnecting the battery to the WIFI PA of the first frequency band according to the first control signal.
  • the power supply switch circuit reduces the power of the WIFI PA of the second frequency band by using a trigger signal after disconnecting the battery to supply power to the WIFI PA of the first frequency band.
  • control circuit is further configured to receive the second signal sent by the first detecting circuit when the first detecting circuit detects that the main current is less than or equal to a second preset threshold, and And sending, according to the second signal, the power supply switch circuit, a power supply second control signal for turning on the battery to the WIFI PA of the first frequency band, where the second preset threshold is smaller than the first Preset threshold.
  • the first detecting circuit further includes: a current sampling amplifier configured to acquire the main current; a comparator connected between the current sampling amplifier and the control circuit, configured to The main current is compared with a preset threshold, and when the main current exceeds the first preset threshold, sending a first signal to the control circuit, when the main current is less than or equal to a second preset threshold, Sending a second signal to the control circuit.
  • the circuit further includes: a second detecting circuit connected to the first detecting circuit, configured to detect whether the terminal is disconnected from the external power supply circuit, and detecting the terminal and the When the external power supply circuit is disconnected, the first detection circuit is triggered to operate.
  • a power supply switching apparatus for a WIFI including: a detecting module configured to detect a battery to a main current of the terminal when the terminal is disconnected from an external power supply circuit, and Determining whether the main current exceeds a first preset threshold, wherein the battery supplies power to the WIFI PA of the first frequency band and the WIFI PA of the second frequency band of the terminal; and the processing module is configured to determine the main current When the first preset threshold is exceeded, the battery is disconnected from the power supply of the WIFI PA of the first frequency band.
  • a storage medium is also provided.
  • the storage medium is arranged to store program code for performing the following steps:
  • the battery is disconnected from the power supply of the WIFI PA of the first frequency band.
  • the technical solution of the embodiment of the present invention when detecting that the terminal is disconnected from the external power supply circuit, detecting a main current of the battery of the terminal to the main board and determining whether the main current exceeds a first preset threshold, wherein the battery Powering the WIFI power amplifier PA of the first frequency band and the WIFI PA of the second frequency band in the terminal; and when determining that the primary current exceeds the first preset threshold, disconnecting the battery to the first frequency band Power supply for WIFI PA.
  • the battery When the main current inside the terminal is too high, the battery is cut off to supply power to the WIFI PA in the first frequency band, and the power supply to the WIFI PA in the second frequency band is maintained, so that the related art can be solved in order to ensure the external circuit
  • the smooth switching of battery power can only increase the battery capacity problem, and realize the smooth switching of external circuit to battery power supply under wifi dual-frequency power supply without increasing the cost and volume of the battery.
  • FIG. 1 is a block diagram showing the hardware structure of a mobile terminal of a WIFI power supply switching method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a power supply switching method of a WIFI according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of a power supply switching circuit of a WIFI according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a first detecting circuit according to an embodiment of the present invention.
  • FIG. 5 is a structural block diagram of a power supply switching apparatus of a WIFI according to an embodiment of the present invention
  • FIG. 6 is a block diagram showing the structure of a power switching device according to an embodiment of the present invention.
  • FIG. 7 is a circuit diagram in accordance with an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a workflow according to an embodiment of the present invention.
  • FIG. 1 is a hardware structural block diagram of a mobile terminal of a WIFI power supply switching method according to an embodiment of the present invention.
  • the mobile terminal 10 may include one or more (only one shown) processor 102 (the processor 102 may include, but is not limited to, a Micro Controller Unit (MCU) or a programmable logic device.
  • a processing device such as an FPGA (Field Programmable Gate A), a memory 104 for storing data, and a transmission device 106 for a communication function.
  • FPGA Field Programmable Gate A
  • FIG. 1 is merely illustrative and does not limit the structure of the above electronic device.
  • the mobile terminal 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration than that shown in FIG.
  • the memory 104 can be used to store software programs and modules of the application software, such as the program instructions/modules corresponding to the power supply switching method of the WIFI in the embodiment of the present invention, and the processor 102 executes by executing the software programs and modules stored in the memory 104.
  • Memory 104 may include high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
  • memory 104 can further include a processor 102 remotely set memories that can be connected to the mobile terminal 10 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Transmission device 106 is for receiving or transmitting data via a network.
  • the above-described network specific example may include a wireless network provided by a communication provider of the mobile terminal 10.
  • the transmission device 106 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet.
  • the transmission device 106 can be a radio frequency (RF) module for communicating with the Internet wirelessly.
  • NIC Network Interface Controller
  • RF radio frequency
  • FIG. 2 is a flowchart of a WIFI power supply switching method according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps. :
  • Step S202 detecting that the terminal is disconnected from the external power supply circuit, detecting the main current of the battery from the terminal to the main board and determining whether the main current exceeds a first preset threshold, wherein the battery gives the WIFI power amplifier PA of the first frequency band in the terminal And powering the WIFI PA in the second frequency band;
  • Step S204 when it is determined that the main current exceeds the first preset threshold, disconnect the battery to supply power to the WIFI PA of the first frequency band.
  • the execution body of the foregoing steps may be a terminal, such as a controller, a battery management circuit, etc., but is not limited thereto.
  • the WIFI PA in the first frequency band may be a WIFI PA in the 5.8 GHz band
  • the WIFI PA in the second frequency band may be a WIFI PA in the 2.4 GHz band, which is used by the dual-band wifi terminal in the related art.
  • the frequency band can also be a WIFI network in other frequency bands.
  • the power of the WIFI PA in the second frequency band is further decreased, and the WIFI in the second frequency band is lowered.
  • the power of the PA is to turn on the 5.8 GHz wifi PA, reduce the power of the 2.4 GHz wifi PA, and then turn on the power supply of the 5.8 GHz wifi PA to maintain the current balance.
  • whether the power supply to the WIFI PA in the first frequency band is selected may be selected according to the current actual current size.
  • the second preset threshold may be less than or equal to the first preset threshold, and when the second preset threshold is less than the first preset threshold, the power supply of the WIFI PA restored to the first frequency band is considered The current is pulled up, making the entire system more stable.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM, including a number of instructions to make a terminal device (can It is a method of performing various embodiments of the present invention, such as a cell phone, computer, server, or network device.
  • a WIFI power supply switching circuit and device are also provided, which are applied to a terminal using a dual-frequency WIFI, and the circuit or device is used to implement the foregoing embodiments and preferred embodiments, and has not been described yet. Narration.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • FIG. 3 is a structural block diagram of a power supply switching circuit of a WIFI according to an embodiment of the present invention. As shown in FIG. 3, the circuit includes:
  • the first detecting circuit 32 is connected to the first detecting circuit and configured to detect the main current of the battery from the terminal to the main board and determine whether the main current exceeds a first preset threshold when the first detecting circuit detects that the terminal is disconnected from the external power supply circuit. And transmitting, when the main current exceeds the first preset threshold, a first signal to the control circuit, wherein the battery supplies power to the WIFI PA of the first frequency band and the WIFI PA of the second frequency band of the terminal;
  • the control circuit 34 is connected to the first detecting circuit and configured to send a first control signal to the power supply switch circuit through the first signal to control disconnection of the power supply switch circuit;
  • the power switch circuit 36 is connected to the control circuit and configured to disconnect the battery to supply power to the WIFI PA of the first frequency band according to the first control signal.
  • the circuit further includes: a second detecting circuit connected to the first detecting circuit, configured to detect whether the terminal is disconnected from the external power supply circuit, and when detecting that the terminal is disconnected from the external power supply circuit, Then triggering the first detection circuit to work.
  • the power adjustment procedure is invoked by the trigger signal to reduce the power of the WIFI PA of the second frequency band.
  • the trigger signal can be controlled by software, such as lowering the power supply position, reducing the current, and reducing the power. Pressure and so on.
  • the first detecting circuit is further configured to continue to detect the main current according to a preset period after the power supply switch circuit disconnects the battery to supply power to the WIFI PA of the first frequency band.
  • the control circuit is further configured to receive the second signal sent by the first detecting circuit when the first detecting circuit detects that the main current is less than or equal to the second preset threshold, and send the second signal to the power supply switch circuit according to the second signal And supplying a second control signal to the WIFI PA of the first frequency band, wherein the second preset threshold is less than the first preset threshold.
  • FIG. 4 is a schematic structural diagram of a first detecting circuit according to an embodiment of the present invention. As shown in FIG. 4, the first detecting circuit 32 further includes:
  • a current sampling amplifier 40 configured to collect a main current
  • the comparator 42 is connected between the current sampling amplifier and the control circuit, configured to compare the main current with a preset threshold, and send a first signal to the control circuit when the main current exceeds the first preset threshold, When the main current is less than or equal to the second predetermined threshold, the second signal is sent to the control circuit.
  • the comparator can be realized by a voltage comparator, the input of the voltage comparator is a voltage, the current sampling amplifier converts the collected main current into a voltage, and the converted voltage is input to the voltage comparator, and the voltage comparator converts the converted The voltage is compared with a reference voltage (corresponding to a preset threshold), and an output digital signal (such as a first signal and a second signal) is selected according to the comparison result.
  • a reference voltage corresponding to a preset threshold
  • FIG. 5 is a structural block diagram of a power supply switching apparatus of a WIFI according to an embodiment of the present invention. As shown in FIG. 5, the apparatus includes:
  • the detecting module 50 is configured to detect, when detecting that the terminal is disconnected from the external power supply circuit, the main current of the battery from the terminal to the main board and determine whether the main current exceeds a first preset threshold, wherein the battery gives the WIFI of the first frequency band in the terminal The PA and the WIFI PA of the second frequency band are powered;
  • the processing module 52 is configured to disconnect the battery to supply power to the WIFI PA of the first frequency band when determining that the main current exceeds the first preset threshold.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
  • the forms are located in different processors.
  • This embodiment is an optional embodiment according to the present invention, and is used to specifically describe the solution:
  • FIG. 6 is a structural block diagram of a power switching device according to an embodiment of the present invention. As shown in FIG. 6, the device shown in this embodiment includes: a current detecting circuit 501, an adapter pull-out signal detecting circuit 502, a logic control circuit 503, and a power supply. Switch circuit 504, WIFI a certain frequency band PA power supply circuit 505.
  • the current detecting circuit 501 detects the current on the main circuit. If the current exceeds the allowable value after the adapter is pulled out, the current is output to the logic control circuit to disconnect the power supply of 5.8 G HzPA to reduce the current and protect the battery supply voltage. If the current does not exceed the allowable value, then the PA supply does not need to be turned off. If the current does not exceed the allowable value, the 5.8 GHz PA supply is not disconnected.
  • the second part of the adapter pulls out the signal detecting circuit 502, and provides the logic control circuit 503 with a signal when the adapter is pulled out, which requires high real-time performance.
  • the third portion of the logic control circuit 503 performs logic processing on the signals of the first portion and the second portion to provide a control signal to the back end circuit.
  • the fourth part of the power supply switch circuit 504 receives the control signal of the third part 503, and controls the switching of the PA power supply circuit of a certain frequency band.
  • the fifth part provides power supply 505 for the PA in a certain
  • the solution is provided to the logic control circuit by detecting the pull-out signal at the moment when the adapter is pulled out, and according to the output of the current detecting circuit, the logic control circuit determines whether to control the power supply switch circuit to turn off the power supply of the wifi 5.8 GHz band PA, and then One band reduces configuration, If the mode is reduced to 1*1 mode, the current is detected by the current detecting circuit. When the current is reduced to the allowable value, the 5.8 GHz band PA is powered by the logic control circuit.
  • the whole process is basically completed by hardware, and the speed is very fast. The user basically does not feel it, and achieves a smooth transition during the power switching process.
  • the specific implementation is as follows:
  • FIG. 7 is a circuit diagram according to an embodiment of the present invention.
  • the specific circuit 602 corresponding to the adapter pull-out signal detecting circuit 502 of FIG. 6 is implemented by collecting a power supply signal of the adapter through a voltage dividing resistor, and Preventing the generation of surge voltage increases the surge protection tube protection circuit.
  • a high level signal is generated here, and the device is pulled low when it is low. This signal is output to the logic control circuit 503 in reference to FIG.
  • the current detecting circuit 601 mainly comprises a current sampling resistor, a current sampling amplifying circuit and a comparator.
  • the comparator When the adapter is pulled out, due to the inrush current, when the current sampling value is greater than the threshold voltage VREF, the comparator output low level is sent to The logic control circuit 603, the integrated adapter pulls out the signal 602, and the logic circuit 603 turns off the switch circuit 604. After the current is reduced by the measure, after the current drops to the value, the comparator outputs a high level, and the logic control circuit 603 opens the switch circuit 604 to restore the 5.8 G Hz PA power supply.
  • the specific circuit is the logic gate circuit 603.
  • the input is high level
  • the current detection circuit output is also high level
  • the logic NOR output is low.
  • Level in this case, refer to the WIFI band PA power supply circuit 505 in Figure 6 is in the on state, when the adapter is pulled out, the adapter pulls out the signal is low, if the current does not exceed the allowable value, the current detection The circuit output is still high for the high logic or NOT gate output, or low. If the current exceeds the allowable value, the current sense circuit output goes low, the logic or non-output is high, and the 505 switch is off. Refer to the 505 power switch in Figure 6 for the off state.
  • the power of another frequency band of wifi is appropriately reduced.
  • the logic control or the gate output is low, referring to the 505 power supply switch in FIG. It is in the conduction state.
  • the specific circuit corresponding to 504 in FIG. 6 is a PMOS switch circuit 604.
  • the logic OR gate output is low, the PA power supply circuit of a certain frequency band of wifi is turned on.
  • the logic OR gate output is high, refer to the 506wifi PA power supply circuit in Figure 6 to disconnect the power supply.
  • FIG. 8 is a schematic diagram of a workflow according to an embodiment of the present invention. As shown in FIG. 8, the method includes:
  • the detection adapter pull-out circuit detects that the adapter is unplugged, and the output changes from a high level to a low level.
  • S2 Determine whether the current exceeds the allowable value. If it exceeds, the logic control circuit outputs a high level signal, and the power supply switch circuit turns off the PA power supply. If the allowable value is not exceeded, the 5.8 GHz band PA remains powered.
  • S3 The control terminal of the power supply switch changes from low level to high level, the switch is turned off, and the PA power supply of a certain frequency band of wifi is disconnected.
  • the detection current circuit detects the current value of the total power supply circuit.
  • the smooth switching of the adapter to the battery power supply under the dual-frequency power supply of the wifi is realized without increasing the cost and the volume of the battery.
  • Embodiments of the present invention also provide a storage medium.
  • the above storage medium may be configured to store program code for performing the following steps:
  • the foregoing storage medium may include, but not limited to, a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), and a mobile hard disk.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • the processor executes, when detecting that the terminal is disconnected from the external power supply circuit, according to the stored program code in the storage medium, detecting the main current of the battery from the terminal to the main board and determining whether the main current is Exceeding a first preset threshold, wherein the battery supplies power to the WIFI power amplifier PA of the first frequency band and the WIFI PA of the second frequency band;
  • the processor performs, according to the stored program code in the storage medium, disconnecting the battery to supply power to the WIFI PA of the first frequency band when determining that the main current exceeds the first preset threshold.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the technical solution of the embodiment of the present invention detects the main current of the battery of the terminal to the main board when the terminal is disconnected from the external power supply circuit, and determines whether the main current exceeds a first preset threshold, wherein the battery gives The WIFI power amplifier PA of the first frequency band and the WIFI PA of the second frequency band of the terminal are powered; when it is determined that the main current exceeds the first preset threshold, disconnecting the battery to the first frequency band WIFI PA power supply.
  • the battery When the main current inside the terminal is too high, the battery is cut off to supply power to the WIFI PA in the first frequency band, and the power supply to the WIFI PA in the second frequency band is maintained, so that the related art can be solved in order to ensure the external circuit
  • the smooth switching of battery power can only increase the battery capacity problem, and realize the smooth switching of external circuit to battery power supply under wifi dual-frequency power supply without increasing the cost and volume of the battery.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract

本发明提供了一种WIFI的供电切换方法、电路及装置、存储介质，其中，该方法包括：在检测到终端与外部供电电路断开时，检测终端的电池到主板的主电流并判断主电流是否超过第一预设阈值，其中，电池给终端中第一频段的WIFI PA和第二频段的WIFI PA进行供电；在确定主电流超过第一预设阈值时，断开电池给第一频段的WIFI PA的供电。

Description

WIFI的供电切换方法、电路及装置、存储介质 技术领域
本发明涉及通信领域，具体而言，涉及一种无线保真(WIFI，Wireless Fidelity)的供电切换方法、电路及装置、存储介质。
背景技术
随着WIFI的迅速普及，人们在使用WIFI的场景越来越多，传图片，在线看电影，数据量急剧增加，对实时性的要求也越来越高。单一2.4G频段的WIFI信道显得特别拥挤，干扰也随之增加。现场功率放大器(PA，Power Amplifier)对应的电路是为了方法发射信号，5.8G频段WIFI在这种背景下产生，就是为了很好的解决2.4G频段拥挤的问题。但同时提供两个频段PA的供电，功耗必然增大，给WIFI设备的设计提出了考验，特别是对适配器切换到电池供电瞬间，电池瞬间的浪涌电流过大，导致电池电压下降，设备掉电关机的情况。要避免这类情况的发生，必须增大电池的供电能力，可以通过增加成本和体积达到，但是对于一般的锂电池，供电能力的增加意味着体积和厚度的增加。对于锂离子聚合物电池，意味这成本的增加。本方案通过设计上的改进，在不增加电池成本和体积的情况下，实现WIFI双频供电下适配器到电池供电的平稳切换。
相关技术的方案都是通过增大电池的容量和瞬间电流提供能力可以达到适配器到电池供电切换的平稳过渡。但是对于一般的锂电池，供电能力的增加意味这体积和厚度的增加。对于锂离子聚合物电池，意味着成本的增加。
针对相关技术中存在的上述问题，目前尚未发现有效的解决方案。
发明内容
本发明实施例提供了一种WIFI的供电切换方法、电路及装置、存储介质，以至少解决相关技术中为了保证外部电路到电池供电的平稳切换只能增加电池容量的问题。
根据本发明的一个实施例，提供了一种WIFI的供电切换方法，包括：在检测到终端与外部供电电路断开时，检测所述终端的电池到主板的主电流并判断所述主电流是否超过第一预设阈值，其中，所述电池给所述终端中第一频段的WIFI功率放大器PA和第二频段的WIFI PA进行供电；在确定所述主电流超过所述第一预设阈值时，断开所述电池给所述第一频段的WIFI PA的供电。
在一实施方式中，在断开所述电池给所述第一频段的WIFI PA的供电之后，所述方法还包括：检测所述主电流；在所述主电流小于或等于第二预设阈值时，导通所述电池给所述第一频段的WIFI PA的供电。
在一实施方式中，在断开所述电池给所述第一频段的WIFI PA的供电之后，所述方法还包括：降低所述第二频段的WIFI PA的功率。
在一实施方式中，所述第一频段的WIFI PA为5.8GHz频段的WIFI PA，所述第二频段的WIFI PA为2.4GHz频段的WIFI PA。
根据本发明的另一个实施例，提供了一种WIFI的供电切换电路，应用在使用双频WIFI的终端上，包括：第一检测电路，配置为在所述终端与外部供电电路断开时，检测所述终端的电池到主板的主电流并判断所述主电流是否超过第一预设阈值，在所述主电流超过所述第一预设阈值时，向控制电路发送第一信号，其中，所述电池给所述终端中第一频段的WIFI PA和第二频段的WIFI PA进行供电；所述控制电路，与所述第一检测电路连接，配置为通过所述第一信号向供电开关电路发出第一控制信号以控制所述供电开关电路的断开；所述供电开关电路，与所述控制电路连接，配置 为根据所述第一控制信号断开所述电池给所述第一频段的WIFI PA的供电。
在一实施方式中，所述供电开关电路在断开所述电池给所述第一频段的WIFI PA的供电之后，通过触发信号降低所述第二频段的WIFI PA的功率。
在一实施方式中，所述控制电路还配置为在所述第一检测电路检测到所述主电流小于或等于第二预设阈值时，接收所述第一检测电路发送的第二信号，并根据所述第二信号向所述供电开关电路发出用于导通所述电池给所述第一频段的WIFI PA的供电第二控制信号，其中，所述第二预设阈值小于所述第一预设阈值。
在一实施方式中，所述第一检测电路还包括：电流采样放大器，配置为采集所述主电流；比较器，连接于所述电流采样放大器和所述控制电路之间，配置为将所述主电流和预设阈值进行比较，并在所述主电流超过所述第一预设阈值时，向所述控制电路发送第一信号，在所述主电流小于或等于第二预设阈值时，向所述控制电路发送第二信号。
在一实施方式中，所述电路还包括：第二检测电路，与所述第一检测电路连接，配置为检测所述终端与所述外部供电电路是否断开，在检测到所述终端与所述外部供电电路断开时，触发所述第一检测电路工作。
根据本发明的又一个实施例，提供了一种WIFI的供电切换装置，包括：检测模块，配置为在检测到终端与外部供电电路断开时，检测所述终端的电池到主板的主电流并判断所述主电流是否超过第一预设阈值，其中，所述电池给所述终端中第一频段的WIFI PA和第二频段的WIFI PA进行供电；处理模块，配置为在确定所述主电流超过所述第一预设阈值时，断开所述电池给所述第一频段的WIFI PA的供电。
根据本发明的又一个实施例，还提供了一种存储介质。该存储介质设置为存储用于执行以下步骤的程序代码：
在检测到终端与外部供电电路断开时，检测所述终端的电池到主板的主电流并判断所述主电流是否超过第一预设阈值，其中，所述电池给所述终端中第一频段的WIFI功率放大器PA和第二频段的WIFI PA进行供电；
在确定所述主电流超过所述第一预设阈值时，断开所述电池给所述第一频段的WIFI PA的供电。
通过本发明实施例的技术方案，检测到终端与外部供电电路断开时，检测所述终端的电池到主板的主电流并判断所述主电流是否超过第一预设阈值，其中，所述电池给所述终端中第一频段的WIFI功率放大器PA和第二频段的WIFI PA进行供电；在确定所述主电流超过所述第一预设阈值时，断开所述电池给所述第一频段的WIFI PA的供电。由于在终端内部的主电流过高的时候，切断了电池给所述第一频段的WIFI PA的供电，维持给第二频段的WIFI PA的供电，因此，可以解决相关技术中为了保证外部电路到电池供电的平稳切换只能增加电池容量的问题，在不增加电池成本和体积的情况下，实现wifi双频供电下外部电路到电池供电的平稳切换。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是本发明实施例的一种WIFI的供电切换方法的移动终端的硬件结构框图；
图2是根据本发明实施例的WIFI的供电切换方法的流程图；
图3是根据本发明实施例的WIFI的供电切换电路的结构框图；
图4是根据本发明实施例的第一检测电路的结构示意图；
图5是根据本发明实施例的WIFI的供电切换装置的结构框图；
图6是根据本发明实施例的电源切换装置的结构框图；
图7是根据本发明实施例的电路图；
图8是根据本发明实施例的工作流程示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
实施例1
本申请实施例一所提供的方法实施例可以在移动终端、计算机终端或者类似的运算装置中执行。以运行在移动终端上为例，图1是本发明实施例的一种WIFI的供电切换方法的移动终端的硬件结构框图。如图1所示，移动终端10可以包括一个或多个(图中仅示出一个)处理器102(处理器102可以包括但不限于微处理器(MCU，Micro Controller Unit)或可编程逻辑器件(FPGA，Field Programmable Gate A)等的处理装置)、用于存储数据的存储器104、以及用于通信功能的传输装置106。本领域普通技术人员可以理解，图1所示的结构仅为示意，其并不对上述电子装置的结构造成限定。例如，移动终端10还可包括比图1中所示更多或者更少的组件，或者具有与图1所示不同的配置。
存储器104可用于存储应用软件的软件程序以及模块，如本发明实施例中的WIFI的供电切换方法对应的程序指令/模块，处理器102通过运行存储在存储器104内的软件程序以及模块，从而执行各种功能应用以及数据处理，即实现上述的方法。存储器104可包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中，存储器104可进一步包括相对于处理器 102远程设置的存储器，这些远程存储器可以通过网络连接至移动终端10。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
传输装置106用于经由一个网络接收或者发送数据。上述的网络具体实例可包括移动终端10的通信供应商提供的无线网络。在一个实例中，传输装置106包括一个网络适配器(NIC，Network Interface Controller)，其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中，传输装置106可以为射频(RF，Radio Frequency)模块，其用于通过无线方式与互联网进行通讯。
在本实施例中提供了一种运行于上述移动终端的WIFI的供电切换方法，图2是根据本发明实施例的WIFI的供电切换方法的流程图，如图2所示，该流程包括如下步骤：
步骤S202，在检测到终端与外部供电电路断开时，检测终端的电池到主板的主电流并判断主电流是否超过第一预设阈值，其中，电池给终端中第一频段的WIFI功率放大器PA和第二频段的WIFI PA进行供电；
步骤S204，在确定主电流超过第一预设阈值时，断开电池给第一频段的WIFI PA的供电。
通过上述步骤，检测到终端与外部供电电路断开时，检测终端的电池到主板的主电流并判断主电流是否超过第一预设阈值，其中，电池给终端中第一频段的WIFI功率放大器PA和第二频段的WIFI PA进行供电；在确定主电流超过第一预设阈值时，断开电池给第一频段的WIFI PA的供电。由于在终端内部的主电流过高的时候，切断了电池给第一频段的WIFI PA的供电，维持给第二频段的WIFI PA的供电，因此，可以解决相关技术中为了保证外部电路到电池供电的平稳切换只能增加电池容量的问题，在不增加电池成本和体积的情况下，实现wifi双频供电下外部电路到电池供电 的平稳切换。
在一实施方式中，上述步骤的执行主体可以为终端，如控制器，电池管理电路等，但不限于此。
在本实施例中，第一频段的WIFI PA可以为5.8GHz频段的WIFI PA，第二频段的WIFI PA可以为2.4GHz频段的WIFI PA，这是相关技术中的双频wifi终端使用的两个频段，当然，也可以是其他频段的WIFI网络。
在一实施方式中，在确定主电流超过第一预设阈值时时，在断开电池给第一频段的WIFI PA的供电之后，还降低第二频段的WIFI PA的功率，降低第二频段的WIFI PA的功率是为了打开5.8GHz的wifi PA，将2.4GHz的wifi PA的功率降低，然后导通5.8GHz的wifi PA的供电，从而保持电流的平衡。
在根据本实施例的可选实施方式中，在断开电池给第一频段的WIFI PA的供电之后，还可以根据当前实际电流的大小来选择是否选择给第一频段的WIFI PA的供电，具体包括：
S11，按照预设周期检测主电流；
S12，在主电流小于或等于第二预设阈值时，导通电池给第一频段的WIFI PA的供电。在一实施方式中，第二预设阈值可以小于或等于第一预设阈值，在第二预设阈值小于第一预设阈值时，由于考虑了恢复给第一频段的WIFI PA的供电带来的电流拉升，使整个系统更稳定。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以 是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例的方法。
实施例2
在本实施例中还提供了一种WIFI的供电切换电路、装置，应用在使用双频WIFI的终端上，该电路或装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图3是根据本发明实施例的WIFI的供电切换电路的结构框图，如图3所示，该电路包括：
第一检测电路32，与第一检测电路连接，配置为在第一检测电路检测终端与外部供电电路断开时，检测终端的电池到主板的主电流并判断主电流是否超过第一预设阈值，在主电流超过第一预设阈值时，向控制电路发送第一信号，其中，电池给终端中第一频段的WIFI PA和第二频段的WIFI PA进行供电；
控制电路34，与第一检测电路连接，配置为通过第一信号向供电开关电路发出第一控制信号以控制供电开关电路的断开；
供电开关电路36，与控制电路连接，配置为根据第一控制信号断开电池给第一频段的WIFI PA的供电。
在一实施方式中，电路还包括：第二检测电路，与第一检测电路连接，配置为检测终端与外部供电电路是否断开，在检测到所述终端与所述外部供电电路断开时，则触发所述第一检测电路工作。
在一实施方式中，供电开关电路在断开电池给第一频段的WIFI PA的供电之后，通过触发信号来调用功率调整程序，降低第二频段的WIFI PA的功率。具体可以通过软件来控制，如调低供电档位，降低电流，降低电 压等。
在一实施方式中，第一检测电路还配置为在供电开关电路断开电池给第一频段的WIFI PA的供电之后按照预设周期继续检测主电流。控制电路还配置为在第一检测电路检测到主电流小于或等于第二预设阈值时，接收所述第一检测电路发送的第二信号，并根据所述第二信号向供电开关电路发出用于导通电池给第一频段的WIFI PA的供电第二控制信号，其中，第二预设阈值小于第一预设阈值。
图4是根据本发明实施例的第一检测电路的结构示意图，如图4所示，第一检测电路32还包括：
电流采样放大器40，配置为采集主电流；
比较器42，连接于电流采样放大器和控制电路之间，配置为将主电流和预设阈值进行比较，并在主电流超过第一预设阈值时，向控制电路发送第一信号，在所述主电流小于或等于第二预设阈值时，向所述控制电路发送第二信号。
比较器可以通过电压比较器来实现，电压比较器的输入端是电压，电流采样放大器将采集到的主电流转换为电压，将转换后的电压输入到电压比较器，电压比较器将转换后的电压和基准电压(与预设阈值对应)进行比较，并根据比较结果选择输出数字信号(如第一信号和第二信号)。
图5是根据本发明实施例的WIFI的供电切换装置的结构框图，如图5所示，该装置包括：
检测模块50，配置为在检测到终端与外部供电电路断开时，检测终端的电池到主板的主电流并判断主电流是否超过第一预设阈值，其中，电池给终端中第一频段的WIFI PA和第二频段的WIFI PA进行供电；
处理模块52，配置为在确定主电流超过第一预设阈值时，断开电池给第一频段的WIFI PA的供电。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
实施例3
本实施例是根据本发明的可选实施例，用于对本方案进行具体详细的说明：
本实施例提供了一种基于wifi双频供电情况下从电源适配器供电切换到电池供电情况下的电源切换方案，由于5.8GHz用的情况较少，所以我们考虑在切换瞬间选择控制5.8GHz频段的WIFI PA的供电来缓冲瞬间电流，虽然PA又断电的过程，但这种控制的时间很短，用户一般感知不到。图6是根据本发明实施例的电源切换装置的结构框图，如图6所示，本实施例所示的装置包括：电流检测电路501，适配器拔出信号检测电路502、逻辑控制电路503、供电开关电路504、WIFI某频段PA供电电路505。电流检测电路501检测主电路上的电流，如果在适配器拔出后，该电流超过允许值，输出给逻辑控制电路，断开5.8G HzPA的供电，以达到减少电流，保护电池供电电压的目的。如果电流没有超过允许值，则不需要关断PA供电。如果电流没有超过允许值，则不断开5.8GHzPA供电。第二部分适配器拔出信号检测电路502，在适配器拔出瞬间提供给逻辑控制电路503拔出信号，对实时性要求较高。第三部分逻辑控制电路503，对第一部分和第二部分的信号进行逻辑处理，给后端电路提供控制信号。第四部分供电开关电路504，接收第三部分503的控制信号，对某频段PA供电电路进开关控制。第五部分为WIFI某频段的PA提供供电505。
本方案通过在适配器拔出瞬间检测拔出信号提供给逻辑控制电路，另外根据电流检测电路的输出，由逻辑控制电路决定是否控制供电开关电路关闭wifi5.8GHz频段PA的供电，然后通过软件将另外一个频段降低配置， 如降为1*1模式，在通过电流检测电路监控电流的变化，当电流降低到允许值之后，在通过逻辑控制电路打开5.8GHz频段PA供电，整个过程基本由硬件来完成，速度很快，用户基本感觉不到，实现了供电切换过程中的平稳过渡。具体实施方式如下：
图7是根据本发明实施例的电路图，如图7所示，包括：参考图6中的适配器拔出信号检测电路502对应的具体电路602实现是通过分压电阻采集适配器的供电信号，同时为了防止浪涌电压的产生增加了浪涌保护管保护电路。适配器插入时，此处产生高电平信号，设配器拔出时为低电平信号。该信号输出至参考图6中的逻辑控制电路503。
电流检测电路601主要有电流采样电阻、电流采样放大电路和比较器三部分组成，当适配器拔出瞬间，由于存在浪涌电流，电流采样值大于阈值电压VREF时，比较器输出低电平送至逻辑控制电路603，综合适配器拔出信号602，逻辑电路603关闭开关电路604。当通过措施减小电流后，电流降到值后，比较器输出高电平，逻辑控制电路603打开开关电路604,恢复5.8G HzPA供电。
参考图6中的逻辑控制电路503对应的具体电路为或逻辑的逻辑门电路603，有适配器的时候，输入为高电平，电流检测电路输出也为高电平，逻辑或非门输出为低电平，这种情况下，参考图6中的WIFI某频段PA供电电路505为导通状态，当适配器拔出时，适配器拔出信号为低电平，如果电流没有超过允许值，则电流检测电路输出还是为高逻辑或非门输出不变，还是低电平。如果电流超过允许值，电流检测电路输出变为低，逻辑或非们输出为高电平，505开关为关断状态。参考图6中的505供电开关为关断状态。此时适当降低wifi另外一个频段的功率，参考图6中的501电流检测电路监测电流的状态，等电流达到允许值后，逻辑控制或门输出为低电平，参考图6中的505供电开关为导通状态。
参考图6中的504对应的具体电路为一个PMOS开关电路604，当逻辑或门输出为低电平时，wifi某频段PA供电电路导通供电。当逻辑或门输出为高电平时，参考图6中的506wifi某频段PA供电电路断开供电。
图8是根据本发明实施例的工作流程示意图，如图8所示，包括：
S1：首先是检测适配器拔出电路检测到适配器拔出，此时输出由高电平变为低电平。
S2：判断电流是否超过允许值，如果超过，逻辑控制电路输出高电平信号，供电开关电路关闭PA供电，如果没有超过允许值，5.8GHz频段PA保持供电。
S3：供电开关的控制端由低电平变为高电平，开关关断，wifi某频段PA供电断开。
S4：在wifi某一频段PA供电断开后，减小另一频段的功率以减小总的供电电流。
S5：检测电流电路检测总供电回路的电流值。
S6：判断供电电流减小到允许值，如果已经减小到允许值，，逻辑门因而输出低电平，打开供电开关，wifi某一频段PA恢复供电。如果没有达到，进一步减小另一频段的功率，然后继续检测判断，直到减小到允许值。
通过本实施例，在不增加电池成本和体积的情况下，实现wifi双频供电下适配器到电池供电的平稳切换。
实施例4
本发明的实施例还提供了一种存储介质。在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S41，在检测到终端与外部供电电路断开时，检测终端的电池到主板的主电流并判断主电流是否超过第一预设阈值，其中，电池给终端中第一频段的WIFI功率放大器PA和第二频段的WIFI PA进行供电；
S42，在确定主电流超过第一预设阈值时，断开电池给第一频段的WIFI PA的供电。
在一实施方式中，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
在一实施方式中，在本实施例中，处理器根据存储介质中已存储的程序代码执行在检测到终端与外部供电电路断开时，检测终端的电池到主板的主电流并判断主电流是否超过第一预设阈值，其中，电池给终端中第一频段的WIFI功率放大器PA和第二频段的WIFI PA进行供电；
在一实施方式中，在本实施例中，处理器根据存储介质中已存储的程序代码执行在确定主电流超过第一预设阈值时，断开电池给第一频段的WIFI PA的供电。
在一实施方式中，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精 神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
本发明实施例的技术方案，检测到终端与外部供电电路断开时，检测所述终端的电池到主板的主电流并判断所述主电流是否超过第一预设阈值，其中，所述电池给所述终端中第一频段的WIFI功率放大器PA和第二频段的WIFI PA进行供电；在确定所述主电流超过所述第一预设阈值时，断开所述电池给所述第一频段的WIFI PA的供电。由于在终端内部的主电流过高的时候，切断了电池给所述第一频段的WIFI PA的供电，维持给第二频段的WIFI PA的供电，因此，可以解决相关技术中为了保证外部电路到电池供电的平稳切换只能增加电池容量的问题，在不增加电池成本和体积的情况下，实现wifi双频供电下外部电路到电池供电的平稳切换。

Claims (11)

  1. 一种无线保真WIFI的供电切换方法，包括：
    在检测到终端与外部供电电路断开时，检测所述终端的电池到主板的主电流，其中，所述电池给所述终端中第一频段的WIFI功率放大器PA和第二频段的WIFI PA进行供电；
    在确定所述主电流超过第一预设阈值时，断开所述电池给所述第一频段的WIFI PA的供电。
  2. 根据权利要求1所述的方法，其中，在断开所述电池给所述第一频段的WIFI PA的供电之后，所述方法还包括：
    检测所述主电流；
    在所述主电流小于或等于第二预设阈值时，导通所述电池给所述第一频段的WIFI PA的供电。
  3. 根据权利要求1所述的方法，其中，在断开所述电池给所述第一频段的WIFI PA的供电之后，所述方法还包括：
    降低所述第二频段的WIFI PA的功率。
  4. 根据权利要求1至3任一项所述的方法，其中，所述第一频段的WIFI PA为5.8GHz频段的WIFI PA，所述第二频段的WIFI PA为2.4GHz频段的WIFI PA。
  5. 一种WIFI的供电切换电路，应用在使用双频WIFI的终端上，包括：
    第一检测电路，配置为在所述终端与外部供电电路断开时，检测所述终端的电池到主板的主电流，在所述主电流超过第一预设阈值时，向控制电路发送第一信号，其中，所述电池给所述终端中第一频段的WIFI PA和第二频段的WIFI PA进行供电；
    所述控制电路，与所述第一检测电路连接，配置为通过所述第一信号向供电开关电路发出第一控制信号以控制所述供电开关电路的断开；
    所述供电开关电路，与所述控制电路连接，配置为根据所述第一控制信号断开所述电池给所述第一频段的WIFI PA的供电。
  6. 根据权利要求5所述的供电切换电路，其中，所述供电开关电路在断开所述电池给所述第一频段的WIFI PA的供电之后，通过触发信号降低所述第二频段的WIFI PA的功率。
  7. 根据权利要求5所述的供电切换电路，其中，所述控制电路还配置为在所述第一检测电路检测到所述主电流小于或等于第二预设阈值时，接收所述第一检测电路发送的第二信号，并根据所述第二信号向所述供电开关电路发出用于导通所述电池给所述第一频段的WIFI PA进行供电的第二控制信号，其中，所述第二预设阈值小于所述第一预设阈值。
  8. 根据权利要求5所述的供电切换电路，其中，所述第一检测电路包括：
    电流采样放大器，配置为采集所述主电流；
    比较器，连接于所述电流采样放大器和所述控制电路之间，配置为将所述主电流和预设阈值进行比较，并在所述主电流超过所述第一预设阈值时，向所述控制电路发送第一信号，和/或在所述主电流小于或等于第二预设阈值时，向所述控制电路发送第二信号。
  9. 根据权利要求5所述的供电切换电路，其中，所述供电切换电路还包括：
    第二检测电路，与所述第一检测电路连接，配置为检测所述终端与所述外部供电电路是否断开，在检测到所述终端与所述外部供电电路断开时，触发所述第一检测电路工作。
  10. 一种WIFI的供电切换装置，包括：
    检测模块，配置为在检测到终端与外部供电电路断开时，检测所述终端的电池到主板的主电流，其中，所述电池给所述终端中第一频段的WIFI  PA和第二频段的WIFI PA进行供电；
    处理模块，配置为在确定所述主电流超过第一预设阈值时，断开所述电池给所述第一频段的WIFI PA的供电。
  11. 一种存储介质，所述存储介质中存储有计算机可执行指令，该计算机可执行指令配置为执行权利要求1-4任一项所述的WIFI的供电切换方法。
PCT/CN2017/073089 2016-07-06 2017-02-08 Wifi的供电切换方法、电路及装置、存储介质 WO2018006593A1 (zh)

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