WO2017219675A1 - 过载保护方法、装置及系统 - Google Patents

过载保护方法、装置及系统 Download PDF

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Publication number
WO2017219675A1
WO2017219675A1 PCT/CN2017/072561 CN2017072561W WO2017219675A1 WO 2017219675 A1 WO2017219675 A1 WO 2017219675A1 CN 2017072561 W CN2017072561 W CN 2017072561W WO 2017219675 A1 WO2017219675 A1 WO 2017219675A1
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WIPO (PCT)
Prior art keywords
terminal
overload protection
voltage
control circuit
protection control
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PCT/CN2017/072561
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English (en)
French (fr)
Inventor
刘嘉俊
邬毅雯
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中兴通讯股份有限公司
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Publication of WO2017219675A1 publication Critical patent/WO2017219675A1/zh

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion
    • H02M1/32Means for protecting converters other than automatic disconnection

Definitions

  • the present invention relates to the field of communications, and in particular to an overload protection method, apparatus, and system.
  • the terminal When the terminal works in some special scenarios (for example, in the slot burst mode), it needs 3A of working current instantaneously. Since the power supply capability of the interface of the terminal is only 500mA, the interface will reduce the voltage input to the terminal due to its own protection. (For example, the terminal is connected to the power supply device through the USB interface). When the voltage input to the terminal is lowered to the normal working voltage of the terminal, the terminal will be powered down, causing the terminal to restart and disconnect the network, which seriously affects the user's use.
  • the embodiment of the invention provides an overload protection method, device and system, so as to at least solve the problem that the terminal loses power when the terminal works in the slot burst mode in the related art.
  • an overload protection method comprising: detecting that a terminal operates in a slot burst mode and/or an instantaneous decrease in signal strength received by the terminal; by using an overload for current compensation
  • the protection control circuit performs current compensation on the terminal system.
  • detecting that the terminal operates in the slot burst mode and/or the instantaneous decrease of the signal strength received by the terminal comprises: detecting that the system voltage of the terminal is lower than a first predetermined threshold, and/or, A system current of the terminal is detected to be above a second predetermined threshold.
  • the method further includes: detecting that the system voltage is higher than the first predetermined threshold, or detecting that the system current is lower than The second predetermined threshold; limiting current charging of the system by the overload protection control circuit.
  • the method further includes: detecting the fault of the overload protection control circuit; reporting the fault to the user interface UI.
  • the time slot burst mode includes: a time division duplex TDD time slot burst mode, and a global mobile communication GSM time slot burst mode.
  • an overload protection apparatus including: a first detection module, configured to detect that a terminal operates in a slot burst mode and/or an instantaneous decrease in a signal strength received by the terminal; And a compensation module, configured to perform current compensation on the terminal system by an overload protection control circuit for performing current compensation.
  • the first detecting module includes: a first detecting unit, configured to detect that a system voltage of the terminal is lower than a first predetermined threshold; and a second detecting unit, configured to detect that a system current of the terminal is higher than a first Two predetermined thresholds.
  • the device further includes: a second detecting module, configured to detect that the system voltage is higher than the first predetermined threshold, or detect that the system current is lower than the second predetermined threshold; and the charging module is configured to: Current limiting charging is performed on the system by the overload protection control circuit.
  • the device further includes: a third detecting module, configured to detect the fault of the overload protection control circuit; and a reporting module, configured to report the fault to the user interface UI.
  • a third detecting module configured to detect the fault of the overload protection control circuit
  • a reporting module configured to report the fault to the user interface UI.
  • an overload protection system including: a first USB interface for receiving an input voltage and transmitting the input voltage to a first voltage conversion circuit; the first voltage conversion a circuit for converting the input voltage to a predetermined voltage and transmitting the predetermined voltage to a first overload protection control circuit to supply power to the first overload protection control circuit; the first overload protection control circuit And determining, according to the detected system current, that the terminal works in a slot burst mode and/or that the signal strength received by the terminal is instantaneously decreased, sending a voltage signal to the power management chip; the power management chip is configured to: Sampling the voltage signal and transmitting the sampled voltage signal to the main control chip; the main control chip is configured to control the overload protection control circuit after receiving the sampled voltage signal The terminal system performs current compensation.
  • an overload protection system including: a second USB interface for receiving an input voltage and transmitting the input voltage to a second voltage conversion circuit; the second voltage conversion a circuit for converting the input voltage to a predetermined voltage and transmitting the predetermined voltage to a second overload protection control circuit; the second overload protection control circuit configured to determine, according to the received predetermined voltage
  • the terminal works in the slot burst mode and/or the signal strength received by the terminal decreases instantaneously, and the terminal system performs current compensation.
  • a storage medium is also provided.
  • the storage medium is arranged to store program code for performing the steps of detecting that the terminal is operating in a slot burst mode and/or that the signal strength received by the terminal is instantaneously reduced; by an overload protection control circuit for current compensation Current compensation is performed on the terminal system.
  • the storage medium is further configured to store program code for performing the steps of: detecting that the terminal operates in the slot burst mode and/or the instantaneous decrease in signal strength received by the terminal comprises: detecting The system voltage of the terminal is below a first predetermined threshold, and/or the system current of the terminal is detected to be above a second predetermined threshold.
  • the storage medium is further configured to store program code for performing the following steps: after current compensation of the system by the overload protection control circuit for performing current compensation, the step further comprising: detecting that the system voltage is higher than The first predetermined threshold, or detecting that the system current is lower than the second predetermined threshold; and limiting current charging of the system by the overload protection control circuit.
  • the storage medium is further configured to store program code for performing the step of detecting the overload protection control circuit failure; reporting the failure to the user interface UI.
  • the storage medium is further configured to store program code for performing the following steps: the time slot burst
  • the mode includes: time division duplex TDD mode slot burst mode, global mobile communication GSM mode slot burst mode.
  • the terminal system is current compensated by the overload protection control circuit for performing current compensation. Due to the addition of the overload protection control circuit, when the terminal is detected to operate in the time slot burst mode, the terminal system is current compensated by the added overload protection control circuit to ensure that the system voltage of the terminal does not decrease to the normal working voltage. Underneath, make sure the terminal is working properly. Therefore, the problem that the terminal loses power when the terminal works in the slot burst mode in the related art can be solved, and the reliability and security of the terminal operation are improved.
  • FIG. 1 is a block diagram showing the hardware structure of a mobile terminal according to an overload protection method according to an embodiment of the present invention
  • FIG. 2 is a flow chart of an overload protection method according to an embodiment of the present invention.
  • FIG. 3 is a first circuit diagram 1 of an overload protection control circuit in accordance with an embodiment of the present invention.
  • FIG. 4 is a circuit diagram 2 of a preferred embodiment of an overload protection control circuit in accordance with an embodiment of the present invention
  • FIG. 5 is a structural block diagram of an overload protection device according to an embodiment of the present invention.
  • FIG. 6 is a block diagram showing the structure of a first detecting module 52 in an overload protection device according to an embodiment of the present invention
  • FIG. 7 is a block diagram 1 of a preferred structure of an overload protection device according to an embodiment of the present invention.
  • FIG. 8 is a block diagram 2 of a preferred structure of an overload protection device according to an embodiment of the present invention.
  • FIG. 9 is a first schematic diagram of an overload protection system according to an embodiment of the present invention.
  • FIG. 10 is a second schematic diagram of an overload protection system in accordance with an embodiment of the present invention.
  • the principle of the embodiment of the present invention is that when the terminal works in the slot burst mode and/or the signal strength received by the terminal decreases instantaneously, the terminal needs a large current to work, and the current compensation is performed by the overload protection control circuit, and the system voltage of the terminal is not It will fall below the normal working voltage of the terminal, which can avoid problems such as restart, network disconnection and black screen when the terminal works in the slot burst mode.
  • FIG. 1 is a hardware structural block diagram of a mobile terminal of an overload protection 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 processing device such as a microprocessor MCU or a programmable logic device FPGA).
  • 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 application software, such as program instructions/modules corresponding to the overload protection method in the embodiment of the present invention, and the processor 102 executes various programs by running software programs and modules stored in the memory 104. Functional application and data processing, that is, the above method is implemented.
  • 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 may further include memory remotely located relative to processor 102, which may be connected to 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 an overload protection 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 works in the slot burst mode and/or the signal strength received by the terminal decreases instantaneously;
  • Step S204 current compensation is performed on the terminal system by an overload protection control circuit for performing current compensation.
  • the overload protection control circuit is added, so that when the terminal is detected to operate in the time slot burst mode, the current system is compensated by the added overload protection control circuit to ensure that the system voltage of the terminal is not reduced to Under normal operating voltage, ensure that the terminal is working properly. Therefore, the problem that the terminal loses power when the terminal works in the slot burst mode in the related art can be solved, and the reliability and security of the terminal operation are improved.
  • the foregoing detecting that the terminal works in the slot burst mode and/or the instantaneous decrease of the signal strength received by the terminal may be implemented in multiple manners, for example, by detecting that the system voltage of the terminal is lower than the first predetermined.
  • the method further includes: detecting that the system voltage is higher than a first predetermined threshold, or detecting that the system current is lower than the second The threshold is predetermined; the system is current-limited and charged by the overload protection control circuit.
  • the fault is reported to the user interface (User Interface, UI for short) after the fault of the overload protection control circuit is detected.
  • the main control chip can monitor the status of the overload protection control circuit in real time. If the status of the overload protection control circuit is abnormal (for example, it cannot work normally), the main control chip displays an abnormality on the UI interface to remind the user that the overload protection control circuit status appears. Abnormal, the terminal needs to be inspected or repaired. Through the above steps, it is possible to ensure that the overload protection control circuit is inspected or repaired in time after the failure of the overload protection control circuit.
  • the time slot burst mode may include: a Time Division Duplex (TDD) slot burst mode, and a Global System for Mobile Communication (GSM) slot burst mode. But it is not limited to this.
  • TDD Time Division Duplex
  • GSM Global System for Mobile Communication
  • the embodiment of the present invention is described by taking an example of determining the terminal operating in the slot burst mode by detecting the system voltage of the terminal and detecting the system current of the terminal.
  • FIG. 3 is a first circuit diagram of an overload protection control circuit according to an embodiment of the present invention. As shown in FIG. 3, a process in which an overload protection control circuit performs current compensation on a terminal system is described by taking a mobile terminal connected to a computer through a USB interface as an example.
  • the voltage conversion circuit converts the 5V input voltage to 3.6V, and inputs the converted voltage 3.6V into the overload protection control circuit to supply power to the overload protection control circuit.
  • the overload protection control circuit detects that the system voltage of the mobile terminal is greater than the first preset threshold (for example, 3.3V), that is, the system voltage is above the normal working voltage of the terminal, then the overload protection control is turned off.
  • the PMOS tube VT5 the terminal system is powered by the voltage conversion circuit, and the mobile terminal works normally.
  • the overload protection control circuit performs current limiting charging on the capacitors (C344 and C345) (for example, it can limit the charging of the capacitor with a current of 300 mA). If the current limiting charging is not performed, the capacitor is inserted when the mobile terminal is inserted into the USB port. The charging current is infinite, so the input 5V voltage will be reduced to a low level, causing the mobile terminal to be inoperable.
  • the GSM time slot burst mode requires about 140us high current mobile terminal to work normally. At this time, the system voltage of the terminal will drop below 3.3V.
  • the overload protection control circuit When the system voltage is detected to be greater than the preset threshold, the overload protection control circuit will control the conduction of VT5, and the capacitor will compensate the large current required by the system. When the system voltage recovers above 3.3V, the overload protection control circuit controls the VT5 to be turned off, the system continues to be powered by the voltage conversion circuit, and the capacitor in the overload protection control circuit is current-limited. In addition, in the working process of the terminal, if the main control chip detects that the overload protection circuit is abnormal and cannot work normally, it reports the UI interface to notify the user that the device needs to be inspected or repaired.
  • FIG. 4 is a circuit diagram 2 of a preferred circuit of an overload protection control circuit according to an embodiment of the present invention. As shown in FIG. 4, a process in which an overload protection control circuit performs current compensation on a terminal system is described by taking a mobile terminal connected to a computer through a USB interface as an example.
  • the voltage conversion circuit converts the 5V input voltage to 3.6V, and inputs the converted voltage 3.6V into the overload protection control circuit to supply power to the overload protection control circuit.
  • the voltage detection amplifier D16 and the 30 milliohm resistor in the overload protection control circuit form a current detecting unit, and the current detecting unit sends the output OUT to the power management chip, and the power management chip performs AD sampling on the received current value. Digitally obtain the real-time current value of the system and send it to the main control chip.
  • the overload protection control circuit detects that the system current of the terminal is greater than the preset threshold
  • the master chip receives the received
  • the voltage signal CTL controls the VT5 to conduct, and the current is compensated by the capacitor (C344, C355); in the overload protection control circuit, the current is less than the preset threshold, the main control chip controls the VT5 to be turned off, and the system continues to be powered by the voltage conversion circuit.
  • the current limit of the capacitor in the overload protection control circuit is limited.
  • 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,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
  • an overload protection device and a system are provided, which are used to implement the above embodiments and preferred embodiments, and are not described again.
  • the term “module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 5 is a structural block diagram of an overload protection device according to an embodiment of the present invention. As shown in FIG. 5, the device includes:
  • the first detecting module 52 is configured to detect that the terminal works in the slot burst mode and/or the signal strength received by the terminal decreases instantaneously;
  • the compensation module 54 is connected to the first detecting module 52 for current compensation of the terminal system by an overload protection control circuit for performing current compensation.
  • FIG. 6 is a structural block diagram of a first detecting module 52 in an overload protection device according to an embodiment of the present invention.
  • the first detecting module 52 includes: a first detecting unit 62 and a second detecting unit 64, respectively Be explained.
  • a first detecting unit 62 configured to detect that a system voltage of the terminal is lower than a first predetermined threshold
  • the second detecting unit 64 is connected to the first detecting unit 62 for detecting that the system current of the terminal is high. At a second predetermined threshold.
  • FIG. 7 is a block diagram of a preferred structure of an overload protection device according to an embodiment of the present invention. As shown in FIG. 7, the device includes, in addition to all the modules shown in FIG.
  • the second detecting module 72 is connected to the compensation module 54 for detecting that the system voltage is higher than the first predetermined threshold, or detecting that the system current is lower than the second predetermined threshold;
  • the charging module 74 is connected to the second detecting module 72 for current limiting charging of the system by the overload protection control circuit.
  • FIG. 8 is a block diagram of a preferred structure of an overload protection device according to an embodiment of the present invention. As shown in FIG. 8, the device includes: in addition to all the modules shown in FIG. 5 or FIG.
  • the third detecting module 82 is configured to detect that the overload protection control circuit is faulty
  • the reporting module 84 is connected to the third detecting module 82 for reporting the fault to the user interface UI.
  • FIG. 9 is a schematic diagram 1 of an overload protection system according to an embodiment of the present invention. As shown in FIG. 9, the system further includes:
  • a first USB interface 92 configured to receive an input voltage, and send the input voltage to the first voltage conversion circuit
  • the first voltage conversion circuit 94 is connected to the first USB interface 92 for converting an input voltage to a predetermined voltage, and transmitting the predetermined voltage to the first overload protection control circuit to supply power to the first overload protection control circuit;
  • the first overload protection control circuit 96 is connected to the first voltage conversion circuit 94 for determining that the terminal operates in the slot burst mode and/or the signal strength received by the terminal is instantaneously decreased according to the detected system current. In case, a voltage signal is sent to the power management chip;
  • the power management chip 98 is connected to the first overload protection control circuit 96 for sampling the voltage signal and transmitting the sampled voltage signal to the main control chip;
  • the main control chip 910 is connected to the first overload protection control circuit 96 and the power management chip 98 for controlling the overload protection control circuit to perform current compensation on the terminal system after receiving the sampled voltage signal.
  • FIG. 10 is a second schematic diagram of an overload protection system according to an embodiment of the present invention, the system further includes:
  • a second USB interface 102 configured to receive an input voltage, and send the input voltage to the second voltage conversion circuit
  • the second voltage conversion circuit 104 is connected to the second USB interface 102 for converting the input voltage to a predetermined voltage, and transmitting the predetermined voltage to the second overload protection control circuit to supply power to the second overload protection control circuit;
  • the second overload protection control circuit 106 is connected to the second voltage conversion circuit 104, and is further configured to determine, according to the received predetermined voltage, that the terminal operates in the slot burst mode and/or the signal strength received by the terminal is instantaneously decreased. In the case of the work, a voltage signal is sent to the power management chip.
  • the embodiment of the present invention takes the system including the overload protection control circuit 96, the power management chip 98, the main control chip 910, the voltage conversion circuit 94 and the USB interface 92 as shown in FIG.
  • the main control chip, the power management chip, the overload protection control circuit and the voltage conversion circuit form a feedback loop in the system.
  • the overload protection control circuit charges the capacitor current limit all the way, detects the system voltage or the system current all the way, and turns off the system power supply according to the set threshold value.
  • the voltage conversion circuit supplies power to the system and performs current limiting charging through the load protection control circuit; when the overload protection control circuit detects that the system voltage is less than a preset threshold, the overload protection control circuit
  • the system is compensated for power supply to avoid insufficient power supply of the USB interface under system overload, which causes the system voltage to drop below the preset threshold and the system cannot operate normally.
  • the main control chip monitors the state of the overload protection control circuit in real time, determines whether the overload protection control circuit is normally controlled or has a problem. If the overload protection control circuit is abnormal, the main control chip will display an abnormality on the UI interface to remind the user that the device needs to be checked. Or repair.
  • 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.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the storage medium is further configured to store program code for performing the steps of: detecting that the terminal is operating in a slot burst mode and/or the instantaneous decrease in signal strength received by the terminal comprises:
  • the storage medium is further configured to store program code for performing the following steps: after current compensation of the system by the overload protection control circuit for current compensation, the step further comprising:
  • the system is current-limited and charged by the overload protection control circuit.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the storage medium is further arranged to store program code for performing the following steps:
  • the slot burst working mode includes: a time division duplex TDD slot burst operation mode, and a global mobile communication GSM slot burst operation mode.
  • the foregoing storage medium may include, but is not limited to, a U disk, a read only memory. (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), removable hard disk, disk or optical disk, and other media that can store program code.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • removable hard disk disk or optical disk, and other media that can store program code.
  • the processor performs, according to the stored program code in the storage medium, detecting that the terminal works in the slot burst mode and/or the signal strength received by the terminal is instantaneously decreased;
  • the overload protection control circuit for current compensation performs current compensation on the terminal system.
  • the processor performs, according to the stored program code in the storage medium, detecting that the terminal works in the slot burst mode and/or the instantaneous decrease of the signal strength received by the terminal includes: detecting The system voltage of the terminal is below a first predetermined threshold, and/or the system current of the terminal is detected to be above a second predetermined threshold.
  • the processor after the processor performs current compensation on the system by using an overload protection control circuit for performing current compensation according to the stored program code in the storage medium, the processor further performs: detecting that the system voltage is higher than The first predetermined threshold, or detecting that the system current is lower than the second predetermined threshold; the system is current-limited by the overload protection control circuit.
  • the processor executes according to the stored program code in the storage medium: detecting an overload protection control circuit failure; reporting the fault to the user interface UI.
  • the processor executes according to the stored program code in the storage medium: the slot burst operation mode includes: a time division duplex TDD slot burst operation mode, and a global mobile communication GSM slot burst. Operating mode.
  • 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 present invention relates to the field of communications, and can solve the problem that the terminal works in the slot burst mode in the related art, causing the terminal to lose power, and improving the reliability and security of the terminal operation.

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Abstract

一种过载保护方法、装置及系统。该方法包括:检测到终端(10)工作在时隙突发模式和/或终端(10)接收到的信号强度瞬时降低(S202);通过用于进行电流补偿的过载保护控制电路对终端系统进行电流补偿(S204)。通过该过载保护方法、装置及系统,能够解决终端工作在时隙突发模式时,导致终端掉电的问题,提高了终端运行的可靠性和安全性。

Description

过载保护方法、装置及系统 技术领域
本发明涉及通信领域,具体而言,涉及一种过载保护方法、装置及系统。
背景技术
当终端在一些特殊场景(例如,在时隙突发模式)工作时,瞬时需要3A的工作电流,由于终端的接口的供电能力只有500mA,这样接口出于自身保护则会降低输入到终端的电压(例如,终端通过USB接口与电源设备连接),当输入到终端的电压降低到终端的正常工作电压之下,终端就会掉电,导致终端重启断网,严重影响用户使用。
发明内容
本发明实施例提供了一种过载保护方法、装置及系统,以至少解决相关技术中终端工作在时隙突发模式时,导致终端掉电的问题。
根据本发明的一个实施例,提供了一种过载保护方法,包括:检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低;通过用于进行电流补偿的过载保护控制电路对所述终端系统进行电流补偿。
可选地,检测到所述终端工作在所述时隙突发模式和/或所述终端接收到的信号强度瞬时降低包括:检测到终端的系统电压低于第一预定阈值,和/或,检测到所述终端的系统电流高于第二预定阈值。
可选地,在通过用于进行电流补偿的过载保护控制电路对系统进行电流补偿之后,所述方法还包括:检测到系统电压高于所述第一预定阈值,或者,检测到系统电流低于所述第二预定阈值;通过所述过载保护控制电路对系统进行限流充电。
可选地,所述方法还包括:检测到所述过载保护控制电路故障;将所述故障上报用户界面UI。
可选地,所述时隙突发模式包括:时分双工TDD时隙突发模式,全球移动通信GSM时隙突发模式。
根据本发明的另一个实施例,提供了一种过载保护装置,包括:第一检测模块,用于检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低;补偿模块,用于通过用于进行电流补偿的过载保护控制电路对所述终端系统进行电流补偿。
可选地,所述第一检测模块包括:第一检测单元,用于检测到终端的系统电压低于第一预定阈值;第二检测单元,用于检测到所述终端的系统电流高于第二预定阈值。
可选地,所述装置还包括:第二检测模块,用于检测到系统电压高于所述第一预定阈值,或者,检测到系统电流低于所述第二预定阈值;充电模块,用于通过所述过载保护控制电路对系统进行限流充电。
可选地,所述装置还包括:第三检测模块,用于检测到所述过载保护控制电路故障;上报模块,用于将所述故障上报用户界面UI。
根据本发明的又一个实施例,提供了一种过载保护系统,包括:第一USB接口,用于接收输入电压,并将所述输入电压发送给第一电压转换电路;所述第一电压转换电路,用于将所述输入电压转换到预定电压,并将所述预定电压发送给第一过载保护控制电路,为所述第一过载保护控制电路供电;所述第一过载保护控制电路,用于根据检测到的系统电流,确定终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低的情况下,向电源管理芯片发送电压信号;所述电源管理芯片,用于对所述电压信号进行采样,并将采样后的电压信号发送给主控芯片;所述主控芯片,用于在接收到所述采样后的电压信号后,控制所述过载保护控制电路对所述终端系统进行电流补偿。
根据本发明的又一个实施例,提供了一种过载保护系统,包括:第二USB接口,用于接收输入电压,并将所述输入电压发送给第二电压转换电路;所述第二电压转换电路,用于将所述输入电压转换到预定电压,并将所述预定电压发送给第二过载保护控制电路;所述第二过载保护控制电路,用于根据接收到的所述预定电压,确定终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低的情况下,对所述终端系统进行电流补偿。
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:检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低;通过用于进行电流补偿的过载保护控制电路对所述终端系统进行电流补偿。
可选地,存储介质还设置为存储用于执行以下步骤的程序代码:检测到所述终端工作在所述时隙突发模式和/或所述终端接收到的信号强度瞬时降低包括:检测到终端的系统电压低于第一预定阈值,和/或,检测到所述终端的系统电流高于第二预定阈值。
可选地,存储介质还设置为存储用于执行以下步骤的程序代码:在通过用于进行电流补偿的过载保护控制电路对系统进行电流补偿之后,所述步骤还包括:检测到系统电压高于所述第一预定阈值,或者,检测到系统电流低于所述第二预定阈值;通过所述过载保护控制电路对系统进行限流充电。
可选地,存储介质还设置为存储用于执行以下步骤的程序代码:检测到所述过载保护控制电路故障;将所述故障上报用户界面UI。
可选地,存储介质还设置为存储用于执行以下步骤的程序代码:所述时隙突发工 作模式包括:时分双工TDD模式时隙突发工作模式,全球移动通信GSM模式时隙突发工作模式。
通过本发明,检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低;通过用于进行电流补偿的过载保护控制电路对终端系统进行电流补偿。由于增加了过载保护控制电路,使得在检测到终端工作在时隙突发模式的情况下,通过增加的过载保护控制电路对终端系统进行电流补偿,保证终端的系统电压不会降低到正常工作电压之下,确保终端正常工作。因此,可以解决相关技术中终端工作在时隙突发模式时,导致终端掉电的问题,提高终端运行的可靠性和安全性。
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过载保护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过载保护方法的流程图;
图3是根据本发明实施例的过载保护控制电路的优选电路图一;
图4是根据本发明实施例的过载保护控制电路的优选电路图二;
图5是根据本发明实施例的过载保护装置的结构框图;
图6是根据本发明实施例的过载保护装置中第一检测模块52的结构框图;
图7是根据本发明实施例的过载保护装置的优选结构框图一;
图8是根据本发明实施例的过载保护装置的优选结构框图二;
图9是根据本发明实施例的过载保护系统的示意图一;
图10是根据本发明实施例的过载保护系统的示意图二。
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
本发明实施例的原理是当终端工作在时隙突发模式和/或终端接收到的信号强度瞬时降低时,终端需要大电流进行工作,通过过载保护控制电路进行电流补偿,终端的系统电压不会掉到终端正常工作电压以下,可以避免终端工作在时隙突发模式时,出现重启,断网,黑屏等问题。
本申请实施例1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过载保护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或可编程逻辑器件FPGA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过载保护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(Network Interface Controller,NIC),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(Radio Frequency,RF)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过载保护方法,图2是根据本发明实施例的过载保护方法的流程图,如图2所示,该流程包括如下步骤:
步骤S202,检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低;
步骤S204,通过用于进行电流补偿的过载保护控制电路对终端系统进行电流补偿。
通过上述步骤,增加了过载保护控制电路,使得在检测到终端工作在时隙突发模式的情况下,通过增加的过载保护控制电路对终端系统进行电流补偿,保证终端的系统电压不会降低到正常工作电压之下,确保终端正常工作。因此,可以解决相关技术中终端工作在时隙突发模式时,导致终端掉电的问题,提高终端运行的可靠性和安全性。
可选地,上述检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低可以通过多种方式实现,例如,可以通过检测到终端的系统电压低于第一预定阈值,和/或,检测到终端的系统电流高于第二预定阈值。需要说明的是,通过检测系统电压或者系统电流确定终端工作在时隙突发模式仅是本发明实施例的优选方式,但是并不限于此。
可选地,在通过用于进行电流补偿的过载保护控制电路对系统进行电流补偿之后,所述方法还包括:检测到系统电压高于第一预定阈值,或者,检测到系统电流低于第二预定阈值;通过过载保护控制电路对系统进行限流充电。通过上述步骤,使得在终端插入USB口的瞬时,过载保护控制电路不会对终端系统进行无限大的电流补偿,解决了过载保护控制电路补偿过载,导致的终端的系统电压降低到正常工作电压之下,终端无法正常工作的问题。
可选地,在终端工作过程中,可以在检测到过载保护控制电路故障后,将故障上报用户界面(User Interface,简称为UI)。例如,主控芯片可以实时监测过载保护控制电路的状态,如果过载保护控制电路状态出现异常(例如,无法正常工作),主控芯片则在UI界面上显示异常,提醒用户过载保护控制电路状态出现异常,终端需要检查或维修。通过上述步骤,可以确保过载保护控制电路出现故障后,及时对过载保护控制电路进行检查或者维修。
可选地,时隙突发模式可以包括:时分双工(Time Division Duplex,简称为TDD)时隙突发模式,全球移动通信(Global System for Mobile Communication,简称为GSM)时隙突发模式,但是并不限于此。
为了方便理解上述实施例,本发明实施例以通过检测终端的系统电压、检测终端的系统电流的方式确定终端工作在时隙突发模式为例分别进行说明。
图3是根据本发明实施例的过载保护控制电路的优选电路图一,如图3所示,以移动终端通过USB接口连接到电脑为例进行说明过载保护控制电路对终端系统进行电流补偿的过程。
当移动终端通过USB口插入电脑,电压转换电路把5V输入电压转换为3.6V,并将该转换的电压3.6V输入过载保护控制电路,为过载保护控制电路提供电力。在终端运行过程中,当过载保护控制电路检测到移动终端的系统电压大于第一预设阀值(例如,3.3V),即系统电压在终端正常工作电压之上,此时关断过载保护控制电路中PMOS管VT5,终端系统由电压转换电路供电,移动终端正常工作。同时,过载保护控制电路对电容(C344和C345)进行限流充电(例如,可以限定以300mA的电流对电容进行充电),如果不进行限流充电,当移动终端插入USB口的瞬间,对电容的充电电流是无限大的,这样输入的5V电压将会被降到很低,导致移动终端会无法工作。当移动终端工作过程中转换为TDD,GSM时隙突发模式时,需要约140us大电流移动终端才可以正常工作,这时终端的系统电压会降到3.3V以下,此时,过载保护控制电路检测到系统电压大于预设阀值,过载保护控制电路则会控制导通VT5,通过电容补偿系统所需的大电流。当系统电压恢复到3.3V以上,过载保护控制电路则控制关断VT5,系统继续由电压转换电路供电,同时对过载保护控制电路会中电容进行限流充电。另外,在终端工作过程中,如果主控芯片检测到过载保护电路出现异常不能正常工作,则报上UI界面,通知用户设备需要检查或者维修。
图4是根据本发明实施例的过载保护控制电路的优选电路图二,如图4所示,以移动终端通过USB接口连接到电脑为例进行说明过载保护控制电路对终端系统进行电流补偿的过程。
当移动终端通过USB口插入电脑,电压转换电路把5V输入电压转换为3.6V,并将该转换的电压3.6V输入过载保护控制电路,为过载保护控制电路提供电力。在终端运行过程中,过载保护控制电路中电压检测放大器D16和30毫欧电阻组成一个电流检测单元,电流检测单元将输出OUT发给电源管理芯片,电源管理芯片对收到的电流值进行AD采样数字化获得系统实时电流值,并发给主控芯片。当移动终端工作过程中转换为TDD,GSM时隙突发模式时,信号强度突然减弱的时候,在过载保护控制电路检测到终端的系统电流大于预设阀值后,主控芯片通过接收到的电压信号CTL控制VT5导通,通过电容(C344,C355)对系统进行电流补偿;在过载保护控制电路系统电流小于预设阀值,主控芯片控制VT5关断,同时系统继续由电压转换电路供电,并对过载保护控制电路会中电容进行限流充电。
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所述的方法。
实施例2
在本实施例中还提供了一种过载保护装置及系统,该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5是根据本发明实施例的过载保护装置的结构框图,如图5所示,该装置包括:
第一检测模块52,用于检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低;
补偿模块54,连接至上述第一检测模块52,用于通过用于进行电流补偿的过载保护控制电路对终端系统进行电流补偿。
图6是根据本发明实施例的过载保护装置中第一检测模块52的结构框图,如图6所示,该第一检测模块52包括:第一检测单元62和第二检测单元64,下面分别进行说明。
第一检测单元62,用于检测到终端的系统电压低于第一预定阈值;
第二检测单元64,连接至上述第一检测单元62,用于检测到终端的系统电流高 于第二预定阈值。
图7是根据本发明实施例的过载保护装置的优选结构框图一,如图7所示,该装置除包括图5所示的所有模块外,还包括:
第二检测模块72,连接至上述补偿模块54,用于检测到系统电压高于第一预定阈值,或者,检测到系统电流低于第二预定阈值;
充电模块74,连接至上述第二检测模块72,用于通过过载保护控制电路对系统进行限流充电。
图8是根据本发明实施例的过载保护装置的优选结构框图二,如图8所示,该装置除包括图5或图7所示的所有模块外,还包括:
第三检测模块82,用于检测到过载保护控制电路故障;
上报模块84,连接至上述第三检测模块82,用于将故障上报用户界面UI。
在本实施例中还提供了一种过载保护系统,图9是根据本发明实施例的过载保护系统的示意图一,如图9所示,该系统还包括:
第一USB接口92,用于接收输入电压,并将输入电压发送给第一电压转换电路;
第一电压转换电路94,连接至上述第一USB接口92,用于将输入电压转换到预定电压,并将预定电压发送给第一过载保护控制电路,为所述第一过载保护控制电路供电;
第一过载保护控制电路96,连接至上述第一电压转换电路94,用于根据检测到的系统电流,确定终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低的情况下,向电源管理芯片发送电压信号;
电源管理芯片98,连接至第一过载保护控制电路96,用于对电压信号进行采样,并将采样后的电压信号发送给主控芯片;
主控芯片910,连接至上述第一过载保护控制电路96和电源管理芯片98,用于在接收到采样后的电压信号后,控制过载保护控制电路对终端系统进行电流补偿。
图10是根据本发明实施例的过载保护系统的示意图二,该系统还包括:
第二USB接口102,用于接收输入电压,并将输入电压发送给第二电压转换电路;
第二电压转换电路104,连接至上述第二USB接口102,用于将输入电压转换到预定电压,并将预定电压发送给第二过载保护控制电路,为第二过载保护控制电路供电;
第二过载保护控制电路106,连接至上述第二电压转换电路104,还用于根据接收到的预定电压,确定终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低的工作的情况下,向电源管理芯片发送电压信号。
为了方便理解上述实施例,本发明实施例以如图9所示的包含过载保护控制电路96,电源管理芯片98,主控芯片910,电压转换电路94和USB接口92的系统为例 对系统的运行进行说明。该系统中主控芯片,电源管理芯片,过载保护控制电路,电压转换电路组成一个反馈回路。当系统工作时,系统通过USB接口输入电源,电压转换电压把USB接口输入电源转换为系统可以使用的电源。同时过载保护控制电路一路给电容限流充电,一路检测系统电压或者系统电流,根据所设置的阀值对系统供电关断开启补偿。当过载保护控制电路检测系统电压大于预设阀值时,电压转换电路给系统供电并通过载保护控制电路进行限流充电;当过载保护控制电路检测系统电压小于预设阀值,过载保护控制电路给系统进行供电补偿,避免系统过载情况下USB接口供电不足,导致系统电压会降到预设阀值以下,系统无法正常运行。主控芯片实时监测过载保护控制电路的状态,确定过载保护控制电路是否正常控制或者是否出问题,如果过载保护控制电路出现异常,主控芯片会在UI界面上显示异常,提醒用户,设备需要检查或维修。
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
本发明的实施例还提供了一种存储介质。可选地,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:
S1,检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低;
S2,通过用于进行电流补偿的过载保护控制电路对终端系统进行电流补偿。
可选地,存储介质还被设置为存储用于执行以下步骤的程序代码:检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低包括:
S1,检测到终端的系统电压低于第一预定阈值,和/或,检测到终端的系统电流高于第二预定阈值。
可选地,存储介质还被设置为存储用于执行以下步骤的程序代码:在通过用于进行电流补偿的过载保护控制电路对系统进行电流补偿之后,所述步骤还包括:
S1,检测到系统电压高于第一预定阈值,或者,检测到系统电流低于第二预定阈值;
S2,通过过载保护控制电路对系统进行限流充电。
可选地,存储介质还被设置为存储用于执行以下步骤的程序代码:
S1,检测到过载保护控制电路故障;
S2,将故障上报用户界面UI。
可选地,存储介质还被设置为存储用于执行以下步骤的程序代码:
S1,时隙突发工作模式包括:时分双工TDD时隙突发工作模式,全球移动通信GSM时隙突发工作模式。
可选地,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。
可选地,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:检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低;通过用于进行电流补偿的过载保护控制电路对终端系统进行电流补偿。
可选地,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:检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低包括:检测到终端的系统电压低于第一预定阈值,和/或,检测到终端的系统电流高于第二预定阈值。
可选地,在本实施例中,处理器根据存储介质中已存储的程序代码,在通过用于进行电流补偿的过载保护控制电路对系统进行电流补偿之后,还执行:检测到系统电压高于第一预定阈值,或者,检测到系统电流低于第二预定阈值;通过过载保护控制电路对系统进行限流充电。
可选地,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:检测到过载保护控制电路故障;将故障上报用户界面UI。
可选地,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:时隙突发工作模式包括:时分双工TDD时隙突发工作模式,全球移动通信GSM时隙突发工作模式。
可选地,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。
工业使用性
本申请涉及通信领域,可以解决相关技术中终端工作在时隙突发模式时,导致终端掉电的问题,提高终端运行的可靠性和安全性。
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。

Claims (11)

  1. 一种过载保护方法,包括:
    检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低;
    通过用于进行电流补偿的过载保护控制电路对终端系统进行电流补偿。
  2. 根据权利要求1所述的方法,其中,检测到所述终端工作在所述时隙突发模式和/或所述终端接收到的信号强度瞬时降低包括:
    检测到终端的系统电压低于第一预定阈值,和/或,检测到所述终端的系统电流高于第二预定阈值。
  3. 根据权利要求2所述的方法,其中,在通过用于进行电流补偿的过载保护控制电路对系统进行电流补偿之后,所述方法还包括:
    检测到系统电压高于所述第一预定阈值,或者,检测到系统电流低于所述第二预定阈值;
    通过所述过载保护控制电路对系统进行限流充电。
  4. 根据权利要求1所述的方法,还包括:
    检测到所述过载保护控制电路故障;
    将所述故障上报用户界面UI。
  5. 根据权利要求1至4中任一项所述的方法,其中,所述时隙突发模式包括:时分双工TDD时隙突发模式,全球移动通信GSM时隙突发模式。
  6. 一种过载保护装置,包括:
    第一检测模块,设置为检测到终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低;
    补偿模块,设置为通过用于进行电流补偿的过载保护控制电路对终端系统进行电流补偿。
  7. 根据权利要求6所述的装置,其中,所述第一检测模块包括:
    第一检测单元,设置为检测到终端的系统电压低于第一预定阈值;
    第二检测单元,设置为检测到所述终端的系统电流高于第二预定阈值。
  8. 根据权利要求7所述的装置,还包括:
    第二检测模块,设置为检测到系统电压高于所述第一预定阈值,或者,检测到系统电流低于所述第二预定阈值;
    充电模块,设置为通过所述过载保护控制电路对系统进行限流充电。
  9. 根据权利要求6所述的装置,还包括:
    第三检测模块,设置为检测到所述过载保护控制电路故障;
    上报模块,设置为将所述故障上报用户界面UI。
  10. 一种过载保护系统,包括:
    第一USB接口,用于接收输入电压,并将所述输入电压发送给第一电压转换电路;
    所述第一电压转换电路,用于将所述输入电压转换到预定电压,并将所述预定电压发送给第一过载保护控制电路,为所述第一过载保护控制电路供电;
    所述第一过载保护控制电路,用于根据检测到的系统电流,确定终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低的情况下,向电源管理芯片发送电压信号;
    所述电源管理芯片,用于对所述电压信号进行采样,并将采样后的电压信号发送给主控芯片;
    所述主控芯片,用于在接收到所述采样后的电压信号后,控制所述过载保护控制电路对终端系统进行电流补偿。
  11. 一种过载保护系统,包括:
    第二USB接口,用于接收输入电压,并将所述输入电压发送给第二电压转换电路;
    所述第二电压转换电路,用于将所述输入电压转换到预定电压,并将所述预定电压发送给第二过载保护控制电路;
    所述第二过载保护控制电路,用于根据接收到的所述预定电压,确定终端工作在时隙突发模式和/或所述终端接收到的信号强度瞬时降低的情况下,对终端系统进行电流补偿。
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