WO2021102901A1 - Battery detection circuit and method, battery, electronic device, and storage medium - Google Patents

Battery detection circuit and method, battery, electronic device, and storage medium Download PDF

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Publication number
WO2021102901A1
WO2021102901A1 PCT/CN2019/121939 CN2019121939W WO2021102901A1 WO 2021102901 A1 WO2021102901 A1 WO 2021102901A1 CN 2019121939 W CN2019121939 W CN 2019121939W WO 2021102901 A1 WO2021102901 A1 WO 2021102901A1
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WIPO (PCT)
Prior art keywords
battery
circuit
comparison circuit
voltage
output
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PCT/CN2019/121939
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French (fr)
Chinese (zh)
Inventor
金军骞
张伟鸿
周瑜
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深圳市大疆创新科技有限公司
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Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to CN201980052880.8A priority Critical patent/CN112639497A/en
Priority to PCT/CN2019/121939 priority patent/WO2021102901A1/en
Publication of WO2021102901A1 publication Critical patent/WO2021102901A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables

Definitions

  • the present invention relates to the field of batteries, in particular to a battery detection circuit, method, battery, electronic equipment, and storage medium.
  • Electronic devices installed with smart batteries may work abnormally due to some reasons during operation. For example, there is a risk of "explosion” during the flight of drones, and the risk of power outages in electric vehicles during driving, and so on. Accurately locating the cause of the abnormal operation of electronic equipment is essential for equipment optimization and timely response.
  • the stability of its power supply is very important, which will directly affect the working conditions of the electronic equipment installed with the battery. Therefore, accurate detection of whether the smart battery has abnormal output will help determine whether the abnormal operation of the electronic device is caused by the abnormality of the smart battery.
  • the invention provides a battery detection circuit, a method, a battery, an electronic device, and a storage medium, which can accurately detect the abnormality of the output voltage of the battery.
  • the first aspect of the present invention provides a battery detection circuit, including:
  • Voltage stabilizing circuit used to provide reference voltage
  • a comparison circuit for electrically connecting to the battery and the voltage stabilizing circuit, the comparison circuit being able to output an indication signal according to the reference voltage and the output voltage of the battery;
  • a control circuit for obtaining the indication signal, and determining whether the output voltage of the battery is abnormal according to the indication signal
  • the first input terminal of the comparison circuit is used to electrically connect to the output interface of the battery to obtain the output voltage of the battery;
  • the second input terminal of the comparison circuit is used to electrically connect to the voltage stabilizing circuit, To obtain the reference voltage;
  • the output terminal of the comparison circuit is used to electrically connect the control circuit to provide the indication signal to the control circuit;
  • the control circuit can determine that the output voltage of the battery is abnormal according to the indication signal, and store the abnormal output voltage information of the battery.
  • the second aspect of the present invention provides a battery including:
  • the battery protection board is provided with:
  • Voltage stabilizing circuit used to provide reference voltage
  • a comparison circuit for electrically connecting to the battery and the voltage stabilizing circuit, the comparison circuit being able to output an indication signal according to the reference voltage and the output voltage of the battery;
  • a control circuit for obtaining the indication signal, and determining whether the output voltage of the battery is abnormal according to the indication signal
  • the first input terminal of the comparison circuit is used to electrically connect to the output interface of the battery to obtain the output voltage of the battery;
  • the second input terminal of the comparison circuit is used to electrically connect to the voltage stabilizing circuit, To obtain the reference voltage;
  • the output terminal of the comparison circuit is used to electrically connect the control circuit to provide the indication signal to the control circuit;
  • the control circuit can determine that the output voltage of the battery is abnormal according to the indication signal, and store the abnormal output voltage information of the battery.
  • a third aspect of the present invention provides an electronic device including the battery according to the second aspect.
  • the fourth aspect of the present invention provides a battery detection method, which is applied to a battery.
  • the battery includes a battery cell and a battery protection board electrically connected to the battery; the battery protection board is provided with a voltage stabilizing circuit and a comparison circuit.
  • the circuit; the voltage stabilizing circuit is used to provide a reference voltage; the comparison circuit is electrically connected to the battery and the voltage stabilizing circuit, and the comparison circuit can output an indication signal according to the reference voltage and the output voltage of the battery ;
  • the method includes:
  • the output voltage abnormality information of the battery is stored.
  • a fifth aspect of the present invention provides a computer-readable storage medium having executable code stored in the computer-readable storage medium, and the executable code is used to implement the battery detection method according to the fourth aspect.
  • the battery includes a battery cell and a battery protection board.
  • a voltage stabilizing circuit In order to accurately detect whether the output voltage of the battery is abnormal, a voltage stabilizing circuit, a comparison circuit and a control circuit are arranged on the battery protection board.
  • the comparison circuit has two input terminals, which are called a first input terminal and a second input terminal.
  • the first input terminal is for example a non-inverting input terminal
  • the second input terminal is for example an inverting input terminal.
  • the voltage circuit is connected to the battery, so that the comparison circuit can obtain a stable reference voltage provided by the voltage stabilizing circuit and the output voltage of the battery.
  • the control circuit can determine whether the output voltage of the battery is abnormal according to the received instruction signal. Specifically, if the output voltage of the battery is lower than the reference voltage, an indication signal is output to the control circuit, so that the control circuit determines that the output voltage of the battery is abnormal according to the indication signal, and stores the output voltage abnormality information of the battery. Thus, the accurate detection of whether the output voltage of the battery is abnormal is realized.
  • Figure 1 is a schematic structural diagram of an unmanned aerial vehicle provided by an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a battery provided by an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a battery detection circuit provided by an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a specific implementation of a battery detection circuit provided by an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a battery detection method provided by an embodiment of the present invention.
  • the embodiment of the present invention provides a battery detection circuit, which can be applied to any electronic device.
  • the electronic device can be a handheld pan/tilt, unmanned aerial vehicle, pan/tilt car, mobile phone, computer, electric vehicle, electric vehicle, etc. Bicycles, etc.
  • Figure 1 shows the structure of the unmanned aerial vehicle.
  • the unmanned aerial vehicle can include a fuselage, a pan-tilt 1 and a camera 2 on the fuselage. .
  • the camera 2 may be set on the platform 1.
  • the camera 2 can be moved relative to the body through the pan/tilt 2.
  • the unmanned aerial vehicle may also include a power system 3.
  • the power system may include an electronic governor, one or more rotors, and one or more motors corresponding to the one or more rotors.
  • Other devices such as an inertial measurement unit may also be provided on the unmanned aerial vehicle, which are not listed here.
  • the unmanned aerial vehicle also includes a battery, through which the battery can provide power support for many devices on the unmanned aerial vehicle.
  • the battery includes a battery core 41 and a battery protection board 42 electrically connected to the battery core 41.
  • the number of battery cores 41 may be one or more.
  • the multiple cells 41 may be connected in parallel and/or in series.
  • the battery detection circuit provided herein is arranged on the battery protection board 42.
  • the battery provides an output interface 43 to the outside, through which the output interface 43 outputs voltage to the outside, so as to realize power supply for other devices.
  • the battery detection circuit is electrically connected to the battery to detect whether the output voltage of the battery is abnormal.
  • the following describes in detail how the battery detection circuit detects whether the output voltage of the battery is abnormal or not with reference to the following embodiments.
  • FIG. 3 is a schematic structural diagram of a battery detection circuit provided by an embodiment of the present invention.
  • the battery detection circuit includes: a voltage stabilizing circuit, a comparison circuit, and a control circuit. among them:
  • Voltage stabilizing circuit used to provide reference voltage
  • the comparison circuit is used to be electrically connected to the battery and the voltage stabilizing circuit.
  • the comparison circuit can output an indication signal according to the reference voltage and the output voltage of the battery;
  • the control circuit is used to obtain the indication signal, and according to the indication signal, determine whether the output voltage of the battery is abnormal.
  • the detection of whether the output voltage of the battery is abnormal is realized.
  • the principle is simply: the output voltage of the battery and the reference voltage provided by the voltage regulator circuit are input to the comparison circuit, and the comparison circuit compares the output voltage of the battery with the reference The size of the voltage.
  • the first level signal can be output
  • the second level signal can be output.
  • the comparison circuit outputs a second-level signal
  • the above-mentioned indication signal may be the second-level signal. Therefore, when the control circuit receives the instruction signal, it can determine that the output voltage of the battery is abnormal.
  • the abnormal output voltage of the battery may be a situation where the output voltage of the battery is 0 or lower than the threshold.
  • the first-level signal and the second-level signal may be referred to as a high-level signal and a low-level signal.
  • the first level signal is a high level signal
  • the second level signal is a low level signal
  • the first level signal is a low level signal
  • the second level signal is a high level signal.
  • the detection of whether the output voltage of the battery is abnormal is realized by the above-mentioned hardware circuit, and the detection rate is at the microsecond (us) level, which can achieve a high-efficiency detection effect.
  • the comparison circuit can be implemented as a circuit with a voltage comparison function, for example, a circuit including a comparator.
  • the control circuit may be implemented as a circuit having a control function, for example, a circuit including a control chip.
  • the voltage stabilizing circuit may be implemented as a circuit capable of providing a constant voltage, for example, a circuit including a device capable of providing a constant voltage such as a Zener diode, and the value of the reference voltage provided by it is, for example, a value that meets actual requirements such as 6.2V.
  • the comparison circuit includes a first input terminal, a second input terminal and an output terminal.
  • the first input terminal is represented as IN+
  • the second input terminal is represented as IN-
  • the output terminal is represented as OUT.
  • the first input terminal of the comparison circuit is used to electrically connect the output interface of the battery to obtain the output voltage of the battery.
  • the second input terminal of the comparison circuit is used to electrically connect the voltage stabilizing circuit to obtain the reference voltage.
  • the output terminal of the comparison circuit is used to electrically connect the control circuit to provide an indication signal to the control circuit.
  • the first input terminal may be the non-inverting input terminal of the comparator, and the second input terminal may be the inverting input terminal of the comparator.
  • the reverse is also possible.
  • the output of the comparator when the output voltage of the battery is higher than the reference voltage, the output of the comparator is The output terminal of the battery outputs a high-level signal; when the output voltage of the battery is lower than the reference voltage, the output terminal of the comparator outputs a low-level signal. Therefore, the low-level signal can be regarded as an indication signal indicating that the output voltage of the battery is abnormal.
  • the circuit can determine that the output voltage of the battery is abnormal based on the indication signal, and store the abnormal output voltage information of the battery.
  • the control circuit is based on the falling edge.
  • the transition signal of the battery records abnormal information about the output voltage of the battery.
  • the battery detection circuit may further include a storage unit electrically connected to the control circuit for storing abnormal output voltage information of the battery.
  • the storage unit can provide permanent storage functions.
  • the control circuit is implemented as a control chip
  • the storage unit may be a memory integrated inside the control chip or an external memory.
  • the storage unit may be electrically connected to the control circuit, and when the signal used for storing the control value from the control circuit is acquired, it stores the abnormality information of the output voltage of the battery.
  • a preset flag bit may be provided in the storage unit, so that the storage of abnormal output voltage information of the battery can be implemented as: when the control circuit determines that the output voltage of the battery is abnormal, it sends a control signal to the storage unit, thereby , The storage unit sets the preset flag bit to the preset value according to the control signal. For example, when the output voltage of the battery is abnormal, the preset flag position is 1, on the contrary, when the output voltage of the battery is normal, the preset flag position is 0. By presetting the flag bit, it is convenient to locate abnormal information when reading data from the storage unit later, and improve the detection efficiency.
  • the abnormal output voltage information of the battery can also include other related information, such as the time when the abnormal output voltage of the battery occurs, the temperature of the battery, the output voltage value of the battery, and the output current of the battery. Value, etc.
  • Abnormal battery output voltage information is often accompanied by abnormal battery temperature, battery output current and other factors. By recording this other related information, it is convenient to analyze and troubleshoot the abnormal information in combination with the other related information when reading the abnormal information. .
  • the abnormal output voltage information of the battery can be read, thereby helping to determine whether the unmanned aerial vehicle is abnormal in flight It is caused by the abnormal output voltage of the battery.
  • control circuit when the control circuit determines that the output voltage of the battery is abnormal, in addition to storing the abnormal output voltage information of the battery, it can also report the abnormal output voltage information of the battery to the processor of the unmanned aerial vehicle.
  • the processor responds, or the control circuit can also control the alarm to give an alarm so that the operator can respond.
  • an alarm that is electrically connected to the control circuit can also be provided, so that the control circuit controls the alarm to give an alarm when it determines that the output voltage of the battery is abnormal.
  • the alarm can be, for example, an LED light, a buzzer, or the like.
  • the comparison circuit is implemented as a comparator as an example.
  • the first input terminal of the comparator is a non-inverting input terminal, and the second input terminal is an inverting input terminal.
  • the voltage stabilizing circuit may include a voltage stabilizing diode D, which is used in series with the battery and the ground, that is, the output voltage of the battery is processed by the voltage stabilizing diode D and then input to the comparison circuit
  • the second input terminal is used to provide a reference voltage for the comparison circuit.
  • the voltage stabilizer circuit may also include a first resistor connected in series between the Zener diode and the battery. R1. The resistance value of the first resistor R1 is set according to actual requirements.
  • the voltage stabilizing circuit is not limited to the foregoing implementation, for example, it can also be implemented as an independent power supply, which provides a reference voltage for the comparison circuit.
  • the battery detection circuit may further include: a voltage divider circuit, which is electrically connected to the output interface of the battery and the first input terminal of the comparison circuit.
  • the divided voltage is input to the first input terminal of the comparison circuit.
  • the voltage divider circuit may include a second resistor R2 and a third resistor R3 connected in series. The resistance values of the second resistor R2 and the third resistor R3 are set according to actual requirements.
  • the comparison circuit when the divided battery output voltage is greater than the reference voltage, the comparison circuit outputs a high-level signal, and when the divided battery output voltage is less than the reference voltage, the comparison circuit outputs a low-level signal.
  • the output high and low level signals are transmitted to the control circuit connected to the output terminal of the comparison circuit.
  • the output terminal of the comparison circuit can be connected to the control circuit.
  • a fourth resistor R4 is electrically connected therebetween, so as to function as a voltage divider.
  • an independent power supply can be used to supply power to the comparison circuit, so as to prevent the comparison circuit from failing to work when the battery output is abnormal.
  • the above-mentioned detected battery may also be used to supply power to the comparison circuit.
  • the specific implementation scheme can be:
  • the comparison circuit includes a first power supply terminal and a second power supply terminal. Among them, in FIG. 4, the comparison circuit is implemented as a comparator, the first power supply terminal is denoted as V+, and the second power supply terminal is denoted as V-.
  • a single power supply can be used to supply power to the comparison circuit.
  • the first power supply terminal is electrically connected to the output interface of the battery, and the second power supply terminal is grounded.
  • the battery detection circuit When the output voltage of the battery is normal, the output voltage of the battery is input to the first power supply terminal, thereby realizing power for the comparison circuit. If the output voltage of the battery is abnormal, in order to ensure that the comparison circuit still has a power supply, the battery detection circuit also includes an energy storage element, which is electrically connected to the battery and the comparison circuit. Specifically, the first power supply terminal of the comparison circuit is electrically connected between the output interface of the battery and the energy storage element, and the energy storage element is connected in series with the output interface and the ground terminal of the battery. Therefore, when the output voltage of the battery is abnormal, the energy storage element can supply power to the comparison circuit to ensure that the comparison circuit can obtain electric energy and can still work normally for at least a period of time.
  • the energy storage element may include a capacitor C.
  • the output voltage of the battery when the output voltage of the battery is normal, on the one hand, the output voltage of the battery will power the comparison circuit; on the other hand, the output voltage of the battery will charge the energy storage element so that the energy storage element can store a certain amount of power. Therefore, when the output voltage of the battery is abnormal, the power supply of the comparison circuit is switched from the battery to the energy storage element, and the energy storage element supplies power to the comparison circuit based on the stored power to support the comparison circuit to complete the output voltage of the battery and the reference voltage. Comparison.
  • the comparison circuit is powered by the above-mentioned energy storage element and the battery without introducing other power supply sources, so that the implementation of the battery detection circuit is simple, and the size of the battery protection board is less occupied.
  • the comparison circuit when the comparison circuit is implemented as a comparator, generally speaking, the amplitude of the high level output by the comparator will not be higher than the amplitude of the power supply voltage. In practical applications, the high level output of the comparator is often required. It is higher than the power supply voltage. For this reason, it is necessary to provide a pull-up resistor electrically connected to the first power supply terminal of the comparison circuit and the output terminal of the comparison circuit.
  • the pull-up resistor is represented as R5. Specifically, the pull-up resistor R5 is connected in series between the output interface of the battery and the energy storage element (C shown in FIG. 4).
  • a filter circuit electrically connected to the first input terminal of the comparison circuit and the first power supply terminal of the comparison circuit is also provided to filter out the noise components input to the comparison circuit.
  • the filter circuit may include a resistor R6.
  • the composition of the battery detection circuit is introduced. Based on the above battery detection circuit, the embodiment of the present invention also provides a battery detection method.
  • the battery detection method is applied to a battery.
  • the battery includes a battery cell and a battery protection board electrically connected to the battery cell.
  • the battery protection board is provided with a battery protection board.
  • Voltage circuit and comparison circuit are used to provide a reference voltage; the comparison circuit is electrically connected to the battery and the voltage stabilizing circuit, and the comparison circuit can output an indication signal according to the reference voltage and the output voltage of the battery.
  • the battery detection method may include the following steps:

Abstract

A battery detection circuit and method, a battery, an electronic device, and a storage medium, the battery detection circuit comprising: a voltage stabilisation circuit, a comparison circuit, and a control circuit. The voltage stabilisation circuit is used for providing a reference voltage; the comparison circuit is used for electrical connection to a battery and the voltage stabilisation circuit, and the comparison circuit can output an indication signal on the basis of the reference voltage and the output voltage of the battery; and the control circuit is used for acquiring the indication signal and, on the basis of the indication signal, determining whether the output voltage of the battery is abnormal. Specifically, when the output voltage of the battery is lower than the reference voltage, the control circuit can determine that the output voltage of the battery is abnormal on the basis of the indication signal outputted by the comparison circuit, and store information of the abnormal output voltage of the battery, thereby implementing accurate detection of whether the output voltage of the battery is abnormal.

Description

电池检测电路、方法及电池、电子设备、存储介质Battery detection circuit, method, battery, electronic equipment, storage medium 技术领域Technical field
本发明涉及电池领域，尤其涉及一种电池检测电路、方法及电池、电子设备、存储介质。The present invention relates to the field of batteries, in particular to a battery detection circuit, method, battery, electronic equipment, and storage medium.
背景技术Background technique
安装有智能电池的电子设备在工作过程中可能会由于一些原因导致工作异常。比如，无人机在飞行过程中存在“炸机”的风险，电动汽车在行驶过程中存在断电风险，等等。准确地定位出导致电子设备工作异常的原因对设备优化、做出及时的应对响应至关重要。Electronic devices installed with smart batteries may work abnormally due to some reasons during operation. For example, there is a risk of "explosion" during the flight of drones, and the risk of power outages in electric vehicles during driving, and so on. Accurately locating the cause of the abnormal operation of electronic equipment is essential for equipment optimization and timely response.
而智能电池作为动力模块，其供电稳定性十分重要，将会直接影响安装电池的电子设备的工作状况。因此，对智能电池是否异常输出进行准确检测，将会有助于判定电子设备的工作异常是否是由智能电池的异常导致的。As the power module of the smart battery, the stability of its power supply is very important, which will directly affect the working conditions of the electronic equipment installed with the battery. Therefore, accurate detection of whether the smart battery has abnormal output will help determine whether the abnormal operation of the electronic device is caused by the abnormality of the smart battery.
发明内容Summary of the invention
本发明提供了一种电池检测电路、方法及电池、电子设备、存储介质，能够实现对电池的输出电压异常情况进行准确检测。The invention provides a battery detection circuit, a method, a battery, an electronic device, and a storage medium, which can accurately detect the abnormality of the output voltage of the battery.
本发明的第一方面提供了一种电池检测电路，包括：The first aspect of the present invention provides a battery detection circuit, including:
稳压电路，用于提供参考电压；Voltage stabilizing circuit, used to provide reference voltage;
比较电路，用于电连接于电池以及所述稳压电路，所述比较电路能够根据所述参考电压以及所述电池的输出电压输出指示信号；以及，A comparison circuit for electrically connecting to the battery and the voltage stabilizing circuit, the comparison circuit being able to output an indication signal according to the reference voltage and the output voltage of the battery; and,
控制电路，用于获取所述指示信号，并根据所述指示信号，确定所述电池的输出电压是否异常；A control circuit for obtaining the indication signal, and determining whether the output voltage of the battery is abnormal according to the indication signal;
其中，所述比较电路的第一输入端用于电连接所述电池的输出接口，以获取所述电池的输出电压；所述比较电路的第二输入端用于电连接所述稳压 电路，以获取所述参考电压；所述比较电路的输出端用于电连接所述控制电路，以提供所述指示信号给所述控制电路；Wherein, the first input terminal of the comparison circuit is used to electrically connect to the output interface of the battery to obtain the output voltage of the battery; the second input terminal of the comparison circuit is used to electrically connect to the voltage stabilizing circuit, To obtain the reference voltage; the output terminal of the comparison circuit is used to electrically connect the control circuit to provide the indication signal to the control circuit;
当所述电池的输出电压低于所述参考电压时，所述控制电路能够根据所述指示信号，确定所述电池的输出电压异常，并存储所述电池的输出电压异常信息。When the output voltage of the battery is lower than the reference voltage, the control circuit can determine that the output voltage of the battery is abnormal according to the indication signal, and store the abnormal output voltage information of the battery.
本发明的第二方面提供了一种电池，包括：The second aspect of the present invention provides a battery including:
电芯以及与所述电芯电连接的电池保护板；A battery cell and a battery protection board electrically connected with the battery cell;
所述电池保护板上设置有：The battery protection board is provided with:
稳压电路，用于提供参考电压；Voltage stabilizing circuit, used to provide reference voltage;
比较电路，用于电连接于电池以及所述稳压电路，所述比较电路能够根据所述参考电压以及所述电池的输出电压输出指示信号；以及，A comparison circuit for electrically connecting to the battery and the voltage stabilizing circuit, the comparison circuit being able to output an indication signal according to the reference voltage and the output voltage of the battery; and,
控制电路，用于获取所述指示信号，并根据所述指示信号，确定所述电池的输出电压是否异常；A control circuit for obtaining the indication signal, and determining whether the output voltage of the battery is abnormal according to the indication signal;
其中，所述比较电路的第一输入端用于电连接所述电池的输出接口，以获取所述电池的输出电压；所述比较电路的第二输入端用于电连接所述稳压电路，以获取所述参考电压；所述比较电路的输出端用于电连接所述控制电路，以提供所述指示信号给所述控制电路；Wherein, the first input terminal of the comparison circuit is used to electrically connect to the output interface of the battery to obtain the output voltage of the battery; the second input terminal of the comparison circuit is used to electrically connect to the voltage stabilizing circuit, To obtain the reference voltage; the output terminal of the comparison circuit is used to electrically connect the control circuit to provide the indication signal to the control circuit;
当所述电池的输出电压低于所述参考电压时，所述控制电路能够根据所述指示信号，确定所述电池的输出电压异常，并存储所述电池的输出电压异常信息。When the output voltage of the battery is lower than the reference voltage, the control circuit can determine that the output voltage of the battery is abnormal according to the indication signal, and store the abnormal output voltage information of the battery.
本发明的第三方面提供了一种电子设备，包括上述第二方面所述的电池。A third aspect of the present invention provides an electronic device including the battery according to the second aspect.
本发明的第四方面提供了一种电池检测方法，应用于电池，所述电池包括电芯以及与所述电芯电连接的电池保护板；所述电池保护板上设置有稳压电路和比较电路；所述稳压电路用于提供参考电压；所述比较电路电连接于所述电池以及所述稳压电路，所述比较电路能够根据所述参考电压以及所述电池的输出电压输出指示信号；所述方法包括：The fourth aspect of the present invention provides a battery detection method, which is applied to a battery. The battery includes a battery cell and a battery protection board electrically connected to the battery; the battery protection board is provided with a voltage stabilizing circuit and a comparison circuit. The circuit; the voltage stabilizing circuit is used to provide a reference voltage; the comparison circuit is electrically connected to the battery and the voltage stabilizing circuit, and the comparison circuit can output an indication signal according to the reference voltage and the output voltage of the battery ; The method includes:
获取所述比较电路输出的所述指示信号；Acquiring the indication signal output by the comparison circuit;
根据所述指示信号确定所述电池的输出电压是否异常；Determining whether the output voltage of the battery is abnormal according to the indication signal;
若所述电池的输出电压异常，则存储所述电池的输出电压异常信息。If the output voltage of the battery is abnormal, the output voltage abnormality information of the battery is stored.
本发明的第五方面提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有可执行代码，所述可执行代码用于实现如第四方面所述的电池检测方法。A fifth aspect of the present invention provides a computer-readable storage medium having executable code stored in the computer-readable storage medium, and the executable code is used to implement the battery detection method according to the fourth aspect.
电池中包括电芯和电池保护板，为实现对电池的输出电压是否异常的准确检测，在电池保护板上设置有稳压电路、比较电路和控制电路。比较电路具有两个输入端，分别称为第一输入端和第二输入端，第一输入端比如为同相输入端，第二输入端比如为反相输入端，这两个输入端分别与稳压电路和电池连接，从而，比较电路可以获得稳压电路提供的稳定的参考电压以及电池的输出电压，通过对比参考电压与电池的输出电压以向控制电路输出反应比较结果的指示信号，从而，控制电路根据接收到的指示信号可以确定电池的输出电压是否异常。具体地，如电池的输出电压低于参考电压时向控制电路输出指示信号，从而使得控制电路根据该指示信号确定电池的输出电压异常，并存储电池的输出电压异常信息。从而实现了电池的输出电压是否异常的准确检测。The battery includes a battery cell and a battery protection board. In order to accurately detect whether the output voltage of the battery is abnormal, a voltage stabilizing circuit, a comparison circuit and a control circuit are arranged on the battery protection board. The comparison circuit has two input terminals, which are called a first input terminal and a second input terminal. The first input terminal is for example a non-inverting input terminal, and the second input terminal is for example an inverting input terminal. The voltage circuit is connected to the battery, so that the comparison circuit can obtain a stable reference voltage provided by the voltage stabilizing circuit and the output voltage of the battery. By comparing the reference voltage with the output voltage of the battery, it outputs an indication signal reflecting the comparison result to the control circuit, thus, The control circuit can determine whether the output voltage of the battery is abnormal according to the received instruction signal. Specifically, if the output voltage of the battery is lower than the reference voltage, an indication signal is output to the control circuit, so that the control circuit determines that the output voltage of the battery is abnormal according to the indication signal, and stores the output voltage abnormality information of the battery. Thus, the accurate detection of whether the output voltage of the battery is abnormal is realized.
附图说明Description of the drawings
此处所说明的附图用来提供对本发明的进一步理解，构成本发明的一部分，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：The drawings described here are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and the description thereof are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:
图1为本发明实施例提供的一种无人飞行器的结构示意图；Figure 1 is a schematic structural diagram of an unmanned aerial vehicle provided by an embodiment of the present invention;
图2为本发明实施例提供的一种电池的结构示意图；FIG. 2 is a schematic structural diagram of a battery provided by an embodiment of the present invention;
图3为本发明实施例提供的一种电池检测电路的结构示意图；FIG. 3 is a schematic structural diagram of a battery detection circuit provided by an embodiment of the present invention;
图4为本发明实施例提供的一种电池检测电路的具体实现方式的示意图；4 is a schematic diagram of a specific implementation of a battery detection circuit provided by an embodiment of the present invention;
图5为本发明实施例提供的一种电池检测方法的流程示意图。FIG. 5 is a schematic flowchart of a battery detection method provided by an embodiment of the present invention.
具体实施方式Detailed ways
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.
本发明实施例提供了一种电池检测电路，该电池检测电路可以适用于任一电子设备上，该电子设备可以是手持云台、无人飞行器、云台车、手机、电脑、电动汽车、电动自行车，等等。The embodiment of the present invention provides a battery detection circuit, which can be applied to any electronic device. The electronic device can be a handheld pan/tilt, unmanned aerial vehicle, pan/tilt car, mobile phone, computer, electric vehicle, electric vehicle, etc. Bicycles, etc.
以无人飞行器为例，图1示意了无人飞行器的组成结构，如图1所示，无人飞行器可以包括机身、设置在机身上的云台1、设置在机身上的相机2。具体地，相机2可以设置在云台1上。相机2通过云台2可以相对机身而移动。无人飞行器还可以包括动力系统3。该动力系统可以包括电子调速器、一个或多个旋翼以及与该一个或多个旋翼对应的一个或多个电机。无人飞行器上还可以设置诸如惯性测量单元等其他器件(图中未示出)，在此不列举。另外，为保证无人飞行器能够正常运作，无人飞行器上还包括电池，通过电池可以为无人飞行器上的众多器件提供电力支持。Take the unmanned aerial vehicle as an example. Figure 1 shows the structure of the unmanned aerial vehicle. As shown in Figure 1, the unmanned aerial vehicle can include a fuselage, a pan-tilt 1 and a camera 2 on the fuselage. . Specifically, the camera 2 may be set on the platform 1. The camera 2 can be moved relative to the body through the pan/tilt 2. The unmanned aerial vehicle may also include a power system 3. The power system may include an electronic governor, one or more rotors, and one or more motors corresponding to the one or more rotors. Other devices (not shown in the figure) such as an inertial measurement unit may also be provided on the unmanned aerial vehicle, which are not listed here. In addition, in order to ensure the normal operation of the unmanned aerial vehicle, the unmanned aerial vehicle also includes a battery, through which the battery can provide power support for many devices on the unmanned aerial vehicle.
如图2中所示，电池中包括电芯41以及与电芯41电连接的电池保护板42。其中，电芯41的数量可以是一个或多个。多个电芯41可以通过并联和/或串联的方式进行连接。本文提供的电池检测电路设置于电池保护板42。电池对外提供输出接口43，通过该输出接口43向外输出电压，以实现为其他器件进行供电。电池检测电路电连接于电池，以实现对电池的输出电压是否异常进行检测。As shown in FIG. 2, the battery includes a battery core 41 and a battery protection board 42 electrically connected to the battery core 41. Wherein, the number of battery cores 41 may be one or more. The multiple cells 41 may be connected in parallel and/or in series. The battery detection circuit provided herein is arranged on the battery protection board 42. The battery provides an output interface 43 to the outside, through which the output interface 43 outputs voltage to the outside, so as to realize power supply for other devices. The battery detection circuit is electrically connected to the battery to detect whether the output voltage of the battery is abnormal.
下面结合以下实施例对电池检测电路如何检测电池的输出电压是否异常进行详细说明。The following describes in detail how the battery detection circuit detects whether the output voltage of the battery is abnormal or not with reference to the following embodiments.
图3为本发明实施例提供的一种电池检测电路的结构示意图，如图3所示，该电池检测电路包括：稳压电路、比较电路和控制电路。其中：FIG. 3 is a schematic structural diagram of a battery detection circuit provided by an embodiment of the present invention. As shown in FIG. 3, the battery detection circuit includes: a voltage stabilizing circuit, a comparison circuit, and a control circuit. among them:
稳压电路，用于提供参考电压；Voltage stabilizing circuit, used to provide reference voltage;
比较电路，用于电连接于电池以及稳压电路，比较电路能够根据参考电压以及电池的输出电压输出指示信号；The comparison circuit is used to be electrically connected to the battery and the voltage stabilizing circuit. The comparison circuit can output an indication signal according to the reference voltage and the output voltage of the battery;
控制电路，用于获取指示信号，并根据指示信号，确定电池的输出电压是否异常。The control circuit is used to obtain the indication signal, and according to the indication signal, determine whether the output voltage of the battery is abnormal.
基于该电池检测电路实现对电池的输出电压是否异常的检测，其原理简单来说就是：电池的输出电压和稳压电路提供的参考电压都输入到比较电路，比较电路比较电池的输出电压与参考电压的大小，当电池的输出电压大于参考电压时，可以输出第一电平信号，当电池的输出电压小于参考电压时，可以输出第二电平信号。假设电池的输出电压异常时，比较电路输出的是第二电平信号，则上述指示信号可以是该第二电平信号。从而，控制电路在接收到该指示信号时，可以确定电池的输出电压异常。其中，电池的输出电压异常可以是电池的输出电压为0或低于阈值的情形。Based on the battery detection circuit, the detection of whether the output voltage of the battery is abnormal is realized. The principle is simply: the output voltage of the battery and the reference voltage provided by the voltage regulator circuit are input to the comparison circuit, and the comparison circuit compares the output voltage of the battery with the reference The size of the voltage. When the output voltage of the battery is greater than the reference voltage, the first level signal can be output, and when the output voltage of the battery is less than the reference voltage, the second level signal can be output. Assuming that when the output voltage of the battery is abnormal, the comparison circuit outputs a second-level signal, and the above-mentioned indication signal may be the second-level signal. Therefore, when the control circuit receives the instruction signal, it can determine that the output voltage of the battery is abnormal. Wherein, the abnormal output voltage of the battery may be a situation where the output voltage of the battery is 0 or lower than the threshold.
实际应用中，第一电平信号和第二电平信号可以称为高电平信号和低电平信号。当第一电平信号为高电平信号时，第二电平信号为低电平信号；当第一电平信号为低电平信号时，第二电平信号为高电平信号。In practical applications, the first-level signal and the second-level signal may be referred to as a high-level signal and a low-level signal. When the first level signal is a high level signal, the second level signal is a low level signal; when the first level signal is a low level signal, the second level signal is a high level signal.
由此可见，电池的输出电压是否异常的检测，是通过上述硬件电路来实现的，检测速率在微秒(us)级，能够实现高效率的检测效果。It can be seen that the detection of whether the output voltage of the battery is abnormal is realized by the above-mentioned hardware circuit, and the detection rate is at the microsecond (us) level, which can achieve a high-efficiency detection effect.
实际应用中，比较电路可以实现为具有电压比较功能的电路，例如包括比较器的电路。控制电路可以实现为具有控制功能的电路，例如包括控制芯片的电路。稳压电路可以实现为能够提供恒定电压的电路，例如包括诸如稳压二极管等能提供恒定电压的器件的电路，其提供的参考电压的取值比如为6.2V等符合实际需求的值。In practical applications, the comparison circuit can be implemented as a circuit with a voltage comparison function, for example, a circuit including a comparator. The control circuit may be implemented as a circuit having a control function, for example, a circuit including a control chip. The voltage stabilizing circuit may be implemented as a circuit capable of providing a constant voltage, for example, a circuit including a device capable of providing a constant voltage such as a Zener diode, and the value of the reference voltage provided by it is, for example, a value that meets actual requirements such as 6.2V.
具体地，比较电路包括第一输入端、第二输入端和输出端。在图3中，第一输入端表示为IN+，第二输入端表示为IN-，输出端表示为OUT。Specifically, the comparison circuit includes a first input terminal, a second input terminal and an output terminal. In FIG. 3, the first input terminal is represented as IN+, the second input terminal is represented as IN-, and the output terminal is represented as OUT.
如图3中所示，比较电路的第一输入端用于电连接电池的输出接口，以获取电池的输出电压。比较电路的第二输入端用于电连接稳压电路，以获取参考电压。比较电路的输出端用于电连接控制电路，以提供指示信号给控制电路。As shown in FIG. 3, the first input terminal of the comparison circuit is used to electrically connect the output interface of the battery to obtain the output voltage of the battery. The second input terminal of the comparison circuit is used to electrically connect the voltage stabilizing circuit to obtain the reference voltage. The output terminal of the comparison circuit is used to electrically connect the control circuit to provide an indication signal to the control circuit.
实际应用中，当比较电路实现为比较器时，第一输入端可以是比较器的同相输入端，第二输入端可以是比较器的反相输入端。当然，反之亦可。In practical applications, when the comparison circuit is implemented as a comparator, the first input terminal may be the non-inverting input terminal of the comparator, and the second input terminal may be the inverting input terminal of the comparator. Of course, the reverse is also possible.
本发明实施例中，假设电池的输出电压未发生异常时，电池的输出电压高于稳压电路提供的参考电压，而当电池的输出电压异常时，电池的输出电压低于参考电压。In the embodiment of the present invention, it is assumed that when the output voltage of the battery is not abnormal, the output voltage of the battery is higher than the reference voltage provided by the voltage stabilizing circuit, and when the output voltage of the battery is abnormal, the output voltage of the battery is lower than the reference voltage.
从而，以比较电路的第一输入端为比较器的同相输入端，比较电路的第二输入端为比较器的反相输入端为例，电池的输出电压高于参考电压时，比较器的输出端输出高电平信号；电池的输出电压低于参考电压时，比较器的输出端输出低电平信号，从而，该低电平信号可以视为是指示电池的输出电压异常的指示信号，控制电路能够根据该指示信号，确定电池的输出电压异常，并存储电池的输出电压异常信息。换句话说，如果电池的输出电压此前一直时正常的，之后发生了异常，那么比较器的输出端会发生由高电平到低电平的下降沿跳变，从而，控制电路基于该下降沿的跳变信号进行电池的输出电压异常信息的记录。Thus, taking the first input terminal of the comparison circuit as the non-inverting input terminal of the comparator, and the second input terminal of the comparison circuit as the inverting input terminal of the comparator as an example, when the output voltage of the battery is higher than the reference voltage, the output of the comparator is The output terminal of the battery outputs a high-level signal; when the output voltage of the battery is lower than the reference voltage, the output terminal of the comparator outputs a low-level signal. Therefore, the low-level signal can be regarded as an indication signal indicating that the output voltage of the battery is abnormal. The circuit can determine that the output voltage of the battery is abnormal based on the indication signal, and store the abnormal output voltage information of the battery. In other words, if the output voltage of the battery has been normal before, and then an abnormality occurs, the output of the comparator will undergo a falling edge transition from high to low. Therefore, the control circuit is based on the falling edge. The transition signal of the battery records abnormal information about the output voltage of the battery.
实际应用中，为了实现电池的输出电压异常信息的存储，电池检测电路中还可以包括电连接于控制电路的存储单元，用于存储电池的输出电压异常信息。其中，该存储单元可以提供永久性的存储功能。当控制电路实现为控制芯片时，该存储单元可以是控制芯片内部集成的存储器，也可以是外置的存储器。存储单元可以电连接于控制电路，当获取控制电路发出地用于控制值存储的信号时，存储电池的输出电压异常信息。In practical applications, in order to realize the storage of abnormal output voltage information of the battery, the battery detection circuit may further include a storage unit electrically connected to the control circuit for storing abnormal output voltage information of the battery. Among them, the storage unit can provide permanent storage functions. When the control circuit is implemented as a control chip, the storage unit may be a memory integrated inside the control chip or an external memory. The storage unit may be electrically connected to the control circuit, and when the signal used for storing the control value from the control circuit is acquired, it stores the abnormality information of the output voltage of the battery.
其中，可选地，存储单元中可以设置有预设标志位，从而，电池的输出 电压异常信息的存储可以实现为：控制电路在确定电池的输出电压异常时，向存储单元发出控制信号，从而，存储单元根据该控制信号将预设标志位设置为预设值。比如，在电池的输出电压异常时，将该预设标志位置为1，反之，在电池的输出电压正常时，将该预设标志位置为0。通过预设标志位，方便后续从存储单元读取数据时对于异常信息的定位，提高检测效率。Optionally, a preset flag bit may be provided in the storage unit, so that the storage of abnormal output voltage information of the battery can be implemented as: when the control circuit determines that the output voltage of the battery is abnormal, it sends a control signal to the storage unit, thereby , The storage unit sets the preset flag bit to the preset value according to the control signal. For example, when the output voltage of the battery is abnormal, the preset flag position is 1, on the contrary, when the output voltage of the battery is normal, the preset flag position is 0. By presetting the flag bit, it is convenient to locate abnormal information when reading data from the storage unit later, and improve the detection efficiency.
电池的输出电压异常信息中除了可以包含上述预设标志位外，还可以包括其他相关信息，比如可以包括电池的输出电压异常发生的时间，电池的温度，电池的输出电压值，电池的输出电流值，等等。电池的输出电压异常信息往往伴随着电池使用温度、电池输出电流等因素的异常，通过记录该其他相关信息，便于后续在读取异常信息时，结合该其他相关信息对于异常信息进行分析、排查原因。In addition to the above-mentioned preset flags, the abnormal output voltage information of the battery can also include other related information, such as the time when the abnormal output voltage of the battery occurs, the temperature of the battery, the output voltage value of the battery, and the output current of the battery. Value, etc. Abnormal battery output voltage information is often accompanied by abnormal battery temperature, battery output current and other factors. By recording this other related information, it is convenient to analyze and troubleshoot the abnormal information in combination with the other related information when reading the abnormal information. .
基于电池的输出电压异常信息的存储，当无人飞行器在因为掉电而发生炸机等异常情况时，可以读取该电池的输出电压异常信息，从而有助于判定无人飞行器的飞行异常是否是由电池的输出电压异常而导致的。Based on the storage of abnormal information about the output voltage of the battery, when the unmanned aerial vehicle encounters an abnormal situation such as an explosion due to a power failure, the abnormal output voltage information of the battery can be read, thereby helping to determine whether the unmanned aerial vehicle is abnormal in flight It is caused by the abnormal output voltage of the battery.
另外，可选地，当控制电路在确定电池的输出电压异常时，除了可以将电池的输出电压异常信息存储下来外，还可以将电池的输出电压异常信息上报至无人飞行器的处理器，以便处理器做出响应，或者，控制电路也可以控制报警器进行报警，以使操作人员做出响应。可以理解的是，为实现该报警功能，还可以设置电连接于控制电路的报警器，以使控制电路在确定电池的输出电压异常时，控制报警器进行报警。该报警器比如可以是LED灯、蜂鸣器等。In addition, optionally, when the control circuit determines that the output voltage of the battery is abnormal, in addition to storing the abnormal output voltage information of the battery, it can also report the abnormal output voltage information of the battery to the processor of the unmanned aerial vehicle. The processor responds, or the control circuit can also control the alarm to give an alarm so that the operator can respond. It is understandable that, in order to realize the alarm function, an alarm that is electrically connected to the control circuit can also be provided, so that the control circuit controls the alarm to give an alarm when it determines that the output voltage of the battery is abnormal. The alarm can be, for example, an LED light, a buzzer, or the like.
以上对电池检测电路的主要组成及其工作原理进行了概括说明，下面结合图4所示实施例对该电池检测电路的一种可选的具体实现方式进行示例性说明。The main components and working principles of the battery detection circuit are summarized above, and an optional specific implementation of the battery detection circuit will be exemplified below in conjunction with the embodiment shown in FIG. 4.
其中，图4中以比较电路实现为比较器为例进行的说明，比较器的第一输入端为同相输入端，第二输入端为反相输入端。Among them, in FIG. 4, the comparison circuit is implemented as a comparator as an example. The first input terminal of the comparator is a non-inverting input terminal, and the second input terminal is an inverting input terminal.
如图4所示，可选地，稳压电路可以包括稳压二极管D，用于与电池和接 地端串联，也就是说，电池的输出电压经过稳压二极管D的处理后，输入到比较电路的第二输入端，以为比较电路提供参考电压。另外，可选地，为保证输入到比较电路的第二输入端的参考电压满足要求以及满足稳压二极管的工作要求，稳压电路中还可以包括串联在稳压二极管和电池之间的第一电阻R1。第一电阻R1的阻值根据实际需求而设定。As shown in Figure 4, optionally, the voltage stabilizing circuit may include a voltage stabilizing diode D, which is used in series with the battery and the ground, that is, the output voltage of the battery is processed by the voltage stabilizing diode D and then input to the comparison circuit The second input terminal is used to provide a reference voltage for the comparison circuit. In addition, optionally, in order to ensure that the reference voltage input to the second input terminal of the comparison circuit meets the requirements and meets the working requirements of the Zener diode, the voltage stabilizer circuit may also include a first resistor connected in series between the Zener diode and the battery. R1. The resistance value of the first resistor R1 is set according to actual requirements.
当然，稳压电路并不限于上述实现方式，比如还可以实现为一个独立供电的电源，由该电源为比较电路提供参考电压。Of course, the voltage stabilizing circuit is not limited to the foregoing implementation, for example, it can also be implemented as an independent power supply, which provides a reference voltage for the comparison circuit.
另外，如前文所述，电池的输出电压用于输入到比较电路的第一输入端。实际应用中，当电池的输出电压的幅值比较高时，可能并不符合比较电路的第一输入端对输入电压的要求。因此，可选地，为保证比较电路的正常工作，如图4中所示，电池检测电路中还可以包括：分压电路，电连接于电池的输出接口和比较电路的第一输入端，用于分压电池的输出电压，将分压后的电压输入比较电路的第一输入端。其中，分压电路可以包括串联的第二电阻R2和第三电阻R3。第二电阻R2和第三电阻R3的阻值根据实际需求而设定。In addition, as mentioned above, the output voltage of the battery is used for input to the first input terminal of the comparison circuit. In practical applications, when the amplitude of the output voltage of the battery is relatively high, it may not meet the requirement of the input voltage of the first input terminal of the comparison circuit. Therefore, optionally, in order to ensure the normal operation of the comparison circuit, as shown in FIG. 4, the battery detection circuit may further include: a voltage divider circuit, which is electrically connected to the output interface of the battery and the first input terminal of the comparison circuit. Regarding the output voltage of the divided battery, the divided voltage is input to the first input terminal of the comparison circuit. The voltage divider circuit may include a second resistor R2 and a third resistor R3 connected in series. The resistance values of the second resistor R2 and the third resistor R3 are set according to actual requirements.
由此可见，当分压后的电池输出电压大于参考电压时，比较电路输出高电平信号，当分压后的电池输出电压小于参考电压时，比较电路输出低电平信号。输出的高、低电平信号被传输到连接在比较电路的输出端的控制电路中，为满足控制电路对输入电压的幅值要求，如图4所示，可以在比较电路的输出端与控制电路之间电连接有第四电阻R4，从而起到分压的作用。It can be seen that when the divided battery output voltage is greater than the reference voltage, the comparison circuit outputs a high-level signal, and when the divided battery output voltage is less than the reference voltage, the comparison circuit outputs a low-level signal. The output high and low level signals are transmitted to the control circuit connected to the output terminal of the comparison circuit. In order to meet the requirements of the control circuit for the amplitude of the input voltage, as shown in Figure 4, the output terminal of the comparison circuit can be connected to the control circuit. A fourth resistor R4 is electrically connected therebetween, so as to function as a voltage divider.
另外，为了保证比较电路能够正常工作，需要为比较电路提供电源。可选地，可以采用独立的电源为比较电路进行供电，以免在电池输出异常时，比较电路无法工作。可选地，也可以采用上述被检测的电池为比较电路供电。In addition, in order to ensure that the comparison circuit can work normally, it is necessary to provide power for the comparison circuit. Optionally, an independent power supply can be used to supply power to the comparison circuit, so as to prevent the comparison circuit from failing to work when the battery output is abnormal. Optionally, the above-mentioned detected battery may also be used to supply power to the comparison circuit.
当采用电池为比较电路供电时，具体的实现方案可以是：When a battery is used to power the comparison circuit, the specific implementation scheme can be:
比较电路包括第一供电端和第二供电端。其中，在图4中，比较电路实现为比较器，第一供电端表示为V+，第二供电端表示为V-。The comparison circuit includes a first power supply terminal and a second power supply terminal. Among them, in FIG. 4, the comparison circuit is implemented as a comparator, the first power supply terminal is denoted as V+, and the second power supply terminal is denoted as V-.
如图4中所示，可以采用单电源供电的方式为比较电路供电，此时，第一供电端电连接于电池的输出接口，第二供电端接地。As shown in FIG. 4, a single power supply can be used to supply power to the comparison circuit. At this time, the first power supply terminal is electrically connected to the output interface of the battery, and the second power supply terminal is grounded.
当电池的输出电压正常时，电池的输出电压输入到该第一供电端，从而实现为比较电路供电。而如果电池的输出电压异常时，为保证比较电路仍旧有供电电源，电池检测电路中还包括储能元件，该储能元件电连接于电池以及比较电路。具体地，比较电路的第一供电端电连接于电池的输出接口与储能元件之间，储能元件与电池的输出接口和接地端串联。从而，当电池的输出电压异常时，储能元件能够为比较电路供电，保证比较电路能够获取电能，在至少一段时间内仍能正常工作。When the output voltage of the battery is normal, the output voltage of the battery is input to the first power supply terminal, thereby realizing power for the comparison circuit. If the output voltage of the battery is abnormal, in order to ensure that the comparison circuit still has a power supply, the battery detection circuit also includes an energy storage element, which is electrically connected to the battery and the comparison circuit. Specifically, the first power supply terminal of the comparison circuit is electrically connected between the output interface of the battery and the energy storage element, and the energy storage element is connected in series with the output interface and the ground terminal of the battery. Therefore, when the output voltage of the battery is abnormal, the energy storage element can supply power to the comparison circuit to ensure that the comparison circuit can obtain electric energy and can still work normally for at least a period of time.
其中，如图4所示，可选地，该储能元件可以包括电容C。Wherein, as shown in FIG. 4, optionally, the energy storage element may include a capacitor C.
实际应用中，电池的输出电压正常时，一方面，电池的输出电压会为比较电路供电，另一方面，电池的输出电压会对储能元件充电，以使储能元件能够储存一定的电量。从而，当电池的输出电压异常时，比较电路的供电电源由电池切换为储能元件，由该储能元件基于已经存储的电量为比较电路供电，以支持比较电路完成电池的输出电压与参考电压的比较。In practical applications, when the output voltage of the battery is normal, on the one hand, the output voltage of the battery will power the comparison circuit; on the other hand, the output voltage of the battery will charge the energy storage element so that the energy storage element can store a certain amount of power. Therefore, when the output voltage of the battery is abnormal, the power supply of the comparison circuit is switched from the battery to the energy storage element, and the energy storage element supplies power to the comparison circuit based on the stored power to support the comparison circuit to complete the output voltage of the battery and the reference voltage. Comparison.
通过上述储能元件与电池为比较电路供电，无需引入其他的供电电源，使得电池检测电路的实现简单，对电池保护板的尺寸占用更少。The comparison circuit is powered by the above-mentioned energy storage element and the battery without introducing other power supply sources, so that the implementation of the battery detection circuit is simple, and the size of the battery protection board is less occupied.
另外，在比较电路实现为比较器时，一般来说，比较器能够输出的高电平的幅值不会高于供电电压的幅值，而实际应用中，往往需要比较器输出的高电平高于供电电压，为此，需要提供电连接于比较电路的第一供电端与比较电路的输出端的上拉电阻。在图4中，该上拉电阻表示为R5。其中，具体地，上拉电阻R5串联在电池的输出接口与储能元件(图4中示意的C)之间。In addition, when the comparison circuit is implemented as a comparator, generally speaking, the amplitude of the high level output by the comparator will not be higher than the amplitude of the power supply voltage. In practical applications, the high level output of the comparator is often required. It is higher than the power supply voltage. For this reason, it is necessary to provide a pull-up resistor electrically connected to the first power supply terminal of the comparison circuit and the output terminal of the comparison circuit. In Figure 4, the pull-up resistor is represented as R5. Specifically, the pull-up resistor R5 is connected in series between the output interface of the battery and the energy storage element (C shown in FIG. 4).
另外，为保证比较电路免受其他干扰，还提供了电连接于比较电路的第一输入端和比较电路的第一供电端的滤波电路，以用于滤除输入到比较电路中的杂波分量。如图4中所示，可选地，该滤波电路可以包括电阻R6。In addition, in order to protect the comparison circuit from other interferences, a filter circuit electrically connected to the first input terminal of the comparison circuit and the first power supply terminal of the comparison circuit is also provided to filter out the noise components input to the comparison circuit. As shown in FIG. 4, optionally, the filter circuit may include a resistor R6.
以上各实施例中对电池检测电路的组成进行了介绍，基于以上电池检测电路，本发明实施例还提供了一种电池检测方法。In the above embodiments, the composition of the battery detection circuit is introduced. Based on the above battery detection circuit, the embodiment of the present invention also provides a battery detection method.
图5为本发明实施例提供的一种电池检测方法的流程示意图，该电池检测方法应用于电池，该电池中包括电芯以及与电芯电连接的电池保护板，电池 保护板上设置有稳压电路和比较电路。其中，稳压电路用于提供参考电压；比较电路电连接于电池以及稳压电路，比较电路能够根据该参考电压以及电池的输出电压输出指示信号。基于此，如图5所示，该电池检测方法可以包括如下步骤：5 is a schematic flow chart of a battery detection method provided by an embodiment of the present invention. The battery detection method is applied to a battery. The battery includes a battery cell and a battery protection board electrically connected to the battery cell. The battery protection board is provided with a battery protection board. Voltage circuit and comparison circuit. Among them, the voltage stabilizing circuit is used to provide a reference voltage; the comparison circuit is electrically connected to the battery and the voltage stabilizing circuit, and the comparison circuit can output an indication signal according to the reference voltage and the output voltage of the battery. Based on this, as shown in FIG. 5, the battery detection method may include the following steps:
501、获取比较电路输出的指示信号。501. Obtain the indication signal output by the comparison circuit.
502、根据指示信号确定电池的输出电压是否异常。502. Determine whether the output voltage of the battery is abnormal according to the indication signal.
503、若电池的输出电压异常，则存储电池的输出电压异常信息。503. If the output voltage of the battery is abnormal, store the output voltage abnormality information of the battery.
上述步骤可以由前述实施例中的控制电路来执行。The above steps can be executed by the control circuit in the foregoing embodiment.
本实施例中上述电路的组成以及工作过程，可以参见前述其他实施例中的相关说明，在此不赘述。For the composition and working process of the above-mentioned circuit in this embodiment, reference may be made to the relevant descriptions in the foregoing other embodiments, which will not be repeated here.
以上各个实施例中的技术方案、技术特征在不相冲突的情况下均可以单独，或者进行组合，只要未超出本领域技术人员的认知范围，均属于本发明保护范围内的等同实施例。The technical solutions and technical features in each of the above embodiments can be singly or combined without conflict, as long as they do not exceed the cognitive scope of those skilled in the art, they all belong to equivalent embodiments within the protection scope of the present invention.
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the description and drawings of the present invention, or directly or indirectly applied to other related technologies In the same way, all fields are included in the scope of patent protection of the present invention.
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. range.

Claims (51)

  1. 一种电池检测电路，其特征在于，包括：A battery detection circuit, characterized in that it comprises:
    稳压电路，用于提供参考电压；Voltage stabilizing circuit, used to provide reference voltage;
    比较电路，用于电连接于电池以及所述稳压电路，所述比较电路能够根据所述参考电压以及所述电池的输出电压输出指示信号；以及，A comparison circuit for electrically connecting to the battery and the voltage stabilizing circuit, the comparison circuit being able to output an indication signal according to the reference voltage and the output voltage of the battery; and,
    控制电路，用于获取所述指示信号，并根据所述指示信号，确定所述电池的输出电压是否异常；A control circuit for obtaining the indication signal, and determining whether the output voltage of the battery is abnormal according to the indication signal;
    其中，所述比较电路的第一输入端用于电连接所述电池的输出接口，以获取所述电池的输出电压；所述比较电路的第二输入端用于电连接所述稳压电路，以获取所述参考电压；所述比较电路的输出端用于电连接所述控制电路，以提供所述指示信号给所述控制电路；Wherein, the first input terminal of the comparison circuit is used to electrically connect to the output interface of the battery to obtain the output voltage of the battery; the second input terminal of the comparison circuit is used to electrically connect to the voltage stabilizing circuit, To obtain the reference voltage; the output terminal of the comparison circuit is used to electrically connect the control circuit to provide the indication signal to the control circuit;
    当所述电池的输出电压低于所述参考电压时，所述控制电路能够根据所述指示信号，确定所述电池的输出电压异常，并存储所述电池的输出电压异常信息。When the output voltage of the battery is lower than the reference voltage, the control circuit can determine that the output voltage of the battery is abnormal according to the indication signal, and store the abnormal output voltage information of the battery.
  2. 根据权利要求1所述的电池检测电路，其特征在于，还包括：存储单元，电连接于所述控制电路，用于存储所述电池的输出电压异常信息。The battery detection circuit according to claim 1, further comprising: a storage unit, electrically connected to the control circuit, for storing abnormal output voltage information of the battery.
  3. 根据权利要求2所述的电池检测电路，其特征在于，所述控制电路，用于在确定所述电池的输出电压异常时，向所述存储单元发出控制信号；4. The battery detection circuit according to claim 2, wherein the control circuit is configured to send a control signal to the storage unit when it is determined that the output voltage of the battery is abnormal;
    所述存储单元中设置有预设标志位，所述存储单元用于根据所述控制信号将所述预设标志位设置为预设值。A preset flag bit is set in the storage unit, and the storage unit is configured to set the preset flag bit to a preset value according to the control signal.
  4. 根据权利要求1所述的电池检测电路，其特征在于，还包括：电连接于所述控制电路的报警器；The battery detection circuit according to claim 1, further comprising: an alarm electrically connected to the control circuit;
    所述控制电路，用于在确定所述电池的输出电压异常时，控制所述报警器进行报警。The control circuit is used to control the alarm to give an alarm when it is determined that the output voltage of the battery is abnormal.
  5. 根据权利要求1所述的电池检测电路，其特征在于，还包括：The battery detection circuit according to claim 1, further comprising:
    储能元件，用于电连接于所述电池以及所述比较电路，当所述电池的输出电压异常时，所述储能元件能够为所述比较电路供电。The energy storage element is used to be electrically connected to the battery and the comparison circuit. When the output voltage of the battery is abnormal, the energy storage element can supply power to the comparison circuit.
  6. 根据权利要求5所述的电池检测电路，其特征在于，所述比较电路包括第一供电端，所述第一供电端电连接于所述电池的输出接口与所述储能元件之间，以通过所述电池或所述储能元件为所述比较电路供电。The battery detection circuit according to claim 5, wherein the comparison circuit comprises a first power supply terminal, and the first power supply terminal is electrically connected between the output interface of the battery and the energy storage element to The comparison circuit is powered by the battery or the energy storage element.
  7. 根据权利要求6所述的电池检测电路，其特征在于，所述比较电路还包括第二供电端，所述第二供电端电连接于接地端。7. The battery detection circuit according to claim 6, wherein the comparison circuit further comprises a second power supply terminal, and the second power supply terminal is electrically connected to a ground terminal.
  8. 根据权利要求5所述的电池检测电路，其特征在于，所述储能元件与所述电池的输出接口和接地端串联。The battery detection circuit according to claim 5, wherein the energy storage element is connected in series with the output interface and the ground terminal of the battery.
  9. 根据权利要求5所述的电池检测电路，其特征在于，所述储能元件包括电容。The battery detection circuit according to claim 5, wherein the energy storage element comprises a capacitor.
  10. 根据权利要求6所述的电池检测电路，其特征在于，还包括：The battery detection circuit according to claim 6, further comprising:
    上拉电阻，用于电连接于所述比较电路的第一供电端与所述比较电路的输出端；A pull-up resistor for electrically connecting to the first power supply terminal of the comparison circuit and the output terminal of the comparison circuit;
    所述上拉电阻串联在所述电池的输出接口与所述储能元件之间。The pull-up resistor is connected in series between the output interface of the battery and the energy storage element.
  11. 根据权利要求6所述的电池检测电路，其特征在于，还包括：The battery detection circuit according to claim 6, further comprising:
    滤波电路，用于电连接于所述比较电路的第一输入端和所述比较电路的第一供电端。The filter circuit is configured to be electrically connected to the first input terminal of the comparison circuit and the first power supply terminal of the comparison circuit.
  12. 根据权利要求1所述的电池检测电路，其特征在于，所述稳压电路包括：The battery detection circuit according to claim 1, wherein the voltage stabilizing circuit comprises:
    稳压二极管，用于与所述电池和接地端串联。The Zener diode is used in series with the battery and the ground terminal.
  13. 根据权利要求12所述的电池检测电路，其特征在于，所述稳压电路还包括：The battery detection circuit according to claim 12, wherein the voltage stabilizing circuit further comprises:
    第一电阻，用于串联在所述稳压二极管和所述电池之间。The first resistor is used to connect in series between the Zener diode and the battery.
  14. 根据权利要求1所述的电池检测电路，其特征在于，还包括：The battery detection circuit according to claim 1, further comprising:
    分压电路，电连接于所述电池的输出接口和所述比较电路的第一输入端，用于分压所述电池的输出电压，将分压后的电压输入所述比较电路的第一输入端。A voltage divider circuit, electrically connected to the output interface of the battery and the first input terminal of the comparison circuit, used to divide the output voltage of the battery, and input the divided voltage into the first input of the comparison circuit end.
  15. 根据权利要求14所述的电池检测电路，其特征在于，所述分压电路 包括串联的第二电阻和第三电阻。The battery detection circuit according to claim 14, wherein the voltage divider circuit comprises a second resistor and a third resistor connected in series.
  16. 根据权利要求1所述的电池检测电路，其特征在于，所述比较电路的输出端与所述控制电路之间电连接有第四电阻。The battery detection circuit according to claim 1, wherein a fourth resistor is electrically connected between the output terminal of the comparison circuit and the control circuit.
  17. 一种电池，其特征在于，包括：A battery, characterized in that it comprises:
    电芯以及与所述电芯电连接的电池保护板；A battery cell and a battery protection board electrically connected with the battery cell;
    所述电池保护板上设置有：The battery protection board is provided with:
    稳压电路，用于提供参考电压；Voltage stabilizing circuit, used to provide reference voltage;
    比较电路，用于电连接于电池以及所述稳压电路，所述比较电路能够根据所述参考电压以及所述电池的输出电压输出指示信号；以及，A comparison circuit for electrically connecting to the battery and the voltage stabilizing circuit, the comparison circuit being able to output an indication signal according to the reference voltage and the output voltage of the battery; and,
    控制电路，用于获取所述指示信号，并根据所述指示信号，确定所述电池的输出电压是否异常；A control circuit for obtaining the indication signal, and determining whether the output voltage of the battery is abnormal according to the indication signal;
    其中，所述比较电路的第一输入端用于电连接所述电池的输出接口，以获取所述电池的输出电压；所述比较电路的第二输入端用于电连接所述稳压电路，以获取所述参考电压；所述比较电路的输出端用于电连接所述控制电路，以提供所述指示信号给所述控制电路；Wherein, the first input terminal of the comparison circuit is used to electrically connect to the output interface of the battery to obtain the output voltage of the battery; the second input terminal of the comparison circuit is used to electrically connect to the voltage stabilizing circuit, To obtain the reference voltage; the output terminal of the comparison circuit is used to electrically connect the control circuit to provide the indication signal to the control circuit;
    当所述电池的输出电压低于所述参考电压时，所述控制电路能够根据所述指示信号，确定所述电池的输出电压异常，并存储所述电池的输出电压异常信息。When the output voltage of the battery is lower than the reference voltage, the control circuit can determine that the output voltage of the battery is abnormal according to the indication signal, and store the abnormal output voltage information of the battery.
  18. 根据权利要求17所述的电池，其特征在于，还包括：存储单元，电连接于所述控制电路，用于存储所述电池的输出电压异常信息。The battery according to claim 17, further comprising: a storage unit, electrically connected to the control circuit, for storing abnormal output voltage information of the battery.
  19. 根据权利要求18所述的电池，其特征在于，所述控制电路，用于在确定所述电池的输出电压异常时，向所述存储单元发出控制信号；The battery according to claim 18, wherein the control circuit is configured to send a control signal to the storage unit when it is determined that the output voltage of the battery is abnormal;
    所述存储单元中设置有预设标志位，所述存储单元用于根据所述控制信号将所述预设标志位设置为预设值。A preset flag bit is set in the storage unit, and the storage unit is configured to set the preset flag bit to a preset value according to the control signal.
  20. 根据权利要求17所述的电池，其特征在于，还包括：电连接于所述控制电路的报警器；The battery according to claim 17, further comprising: an alarm electrically connected to the control circuit;
    所述控制电路，用于在确定所述电池的输出电压异常时，控制所述报警 器进行报警。The control circuit is used to control the alarm to give an alarm when it is determined that the output voltage of the battery is abnormal.
  21. 根据权利要求17所述的电池，其特征在于，还包括：The battery according to claim 17, further comprising:
    储能元件，用于电连接于所述电池以及所述比较电路，当所述电池的输出电压异常时，所述储能元件能够为所述比较电路供电。The energy storage element is used to be electrically connected to the battery and the comparison circuit. When the output voltage of the battery is abnormal, the energy storage element can supply power to the comparison circuit.
  22. 根据权利要求21所述的电池，其特征在于，所述比较电路包括第一供电端，所述第一供电端电连接于所述电池的输出接口与所述储能元件之间，以通过所述电池或所述储能元件为所述比较电路供电。The battery according to claim 21, wherein the comparison circuit comprises a first power supply terminal, and the first power supply terminal is electrically connected between the output interface of the battery and the energy storage element to pass all The battery or the energy storage element supplies power to the comparison circuit.
  23. 根据权利要求22所述的电池，其特征在于，所述比较电路还包括第二供电端，所述第二供电端电连接于接地端。The battery according to claim 22, wherein the comparison circuit further comprises a second power supply terminal, and the second power supply terminal is electrically connected to the ground terminal.
  24. 根据权利要求21所述的电池，其特征在于，所述储能元件与所述电池的输出接口和接地端串联。The battery according to claim 21, wherein the energy storage element is connected in series with the output interface and the ground terminal of the battery.
  25. 根据权利要求21所述的电池，其特征在于，所述储能元件包括电容。The battery according to claim 21, wherein the energy storage element comprises a capacitor.
  26. 根据权利要求22所述的电池，其特征在于，还包括：The battery according to claim 22, further comprising:
    上拉电阻，用于电连接于所述比较电路的第一供电端与所述比较电路的输出端；A pull-up resistor for electrically connecting to the first power supply terminal of the comparison circuit and the output terminal of the comparison circuit;
    所述上拉电阻串联在所述电池的输出接口与所述储能元件之间。The pull-up resistor is connected in series between the output interface of the battery and the energy storage element.
  27. 根据权利要求22所述的电池，其特征在于，还包括：The battery according to claim 22, further comprising:
    滤波电路，用于电连接于所述比较电路的第一输入端和所述比较电路的第一供电端。The filter circuit is configured to be electrically connected to the first input terminal of the comparison circuit and the first power supply terminal of the comparison circuit.
  28. 根据权利要求17所述的电池，其特征在于，所述稳压电路包括：The battery according to claim 17, wherein the voltage stabilizing circuit comprises:
    稳压二极管，用于与所述电池和接地端串联。The Zener diode is used in series with the battery and the ground terminal.
  29. 根据权利要求28所述的电池，其特征在于，所述稳压电路还包括：The battery according to claim 28, wherein the voltage stabilizing circuit further comprises:
    第一电阻，用于串联在所述稳压二极管和所述电池之间。The first resistor is used to connect in series between the Zener diode and the battery.
  30. 根据权利要求17所述的电池，其特征在于，还包括：The battery according to claim 17, further comprising:
    分压电路，电连接于所述电池的输出接口和所述比较电路的第一输入端，用于分压所述电池的输出电压，将分压后的电压输入所述比较电路的第一输入端。A voltage divider circuit, electrically connected to the output interface of the battery and the first input terminal of the comparison circuit, used to divide the output voltage of the battery, and input the divided voltage into the first input of the comparison circuit end.
  31. 根据权利要求30所述的电池，其特征在于，所述分压电路包括串联的第二电阻和第三电阻。The battery according to claim 30, wherein the voltage divider circuit includes a second resistor and a third resistor connected in series.
  32. 根据权利要求17所述的电池，其特征在于，所述比较电路的输出端与所述控制电路之间电连接有第四电阻。18. The battery according to claim 17, wherein a fourth resistor is electrically connected between the output terminal of the comparison circuit and the control circuit.
  33. 一种电子设备，其特征在于，包括如权利要求17至32中任一项所述的电池。An electronic device, characterized by comprising the battery according to any one of claims 17 to 32.
  34. 根据权利要求33所述的电子设备，其特征在于，所述电子设备包括如下至少一种：手持云台、无人飞行器、云台车。The electronic device according to claim 33, wherein the electronic device comprises at least one of the following: a handheld pan/tilt, an unmanned aerial vehicle, and a pan/tilt cart.
  35. 一种电池检测方法，其特征在于，应用于电池，所述电池包括电芯以及与所述电芯电连接的电池保护板；所述电池保护板上设置有稳压电路和比较电路；所述稳压电路用于提供参考电压；所述比较电路电连接于所述电池以及所述稳压电路，所述比较电路能够根据所述参考电压以及所述电池的输出电压输出指示信号；所述方法包括：A battery detection method, characterized in that it is applied to a battery. The battery includes a battery cell and a battery protection board electrically connected to the battery; the battery protection board is provided with a voltage stabilizing circuit and a comparison circuit; The voltage stabilization circuit is used to provide a reference voltage; the comparison circuit is electrically connected to the battery and the voltage stabilization circuit, and the comparison circuit can output an indication signal according to the reference voltage and the output voltage of the battery; the method include:
    获取所述比较电路输出的所述指示信号；Acquiring the indication signal output by the comparison circuit;
    根据所述指示信号确定所述电池的输出电压是否异常；Determining whether the output voltage of the battery is abnormal according to the indication signal;
    若所述电池的输出电压异常，则存储所述电池的输出电压异常信息。If the output voltage of the battery is abnormal, the output voltage abnormality information of the battery is stored.
  36. 根据权利要求35所述的方法，其特征在于，所述比较电路包括第一输入端、第二输入端和输出端；所述比较电路的第一输入端用于电连接所述电池的输出接口，以获取所述电池的输出电压；所述比较电路的第二输入端用于电连接所述稳压电路，以获取所述参考电压；所述比较电路的输出端用于输出所述指示信号；The method according to claim 35, wherein the comparison circuit comprises a first input terminal, a second input terminal and an output terminal; the first input terminal of the comparison circuit is used to electrically connect the output interface of the battery , To obtain the output voltage of the battery; the second input terminal of the comparison circuit is used to electrically connect the voltage stabilizing circuit to obtain the reference voltage; the output terminal of the comparison circuit is used to output the indication signal ；
    所述根据所述指示信号确定所述电池的输出电压是否异常，包括：The determining whether the output voltage of the battery is abnormal according to the indication signal includes:
    根据当所述电池的输出电压低于所述参考电压时所述比较电路输出的指示信号，确定所述电池的输出电压异常。According to the indication signal output by the comparison circuit when the output voltage of the battery is lower than the reference voltage, it is determined that the output voltage of the battery is abnormal.
  37. 根据权利要求35所述的方法，其特征在于，所述电池还包括存储单元，所述存储单元中设置有预设标志位；The method according to claim 35, wherein the battery further comprises a storage unit, and a preset flag bit is set in the storage unit;
    所述存储所述电池的输出电压异常信息，包括：The storing the abnormal output voltage information of the battery includes:
    向所述存储单元发出控制信号，以使所述存储单元根据所述控制信号将所述预设标志位设置为预设值。Sending a control signal to the storage unit, so that the storage unit sets the preset flag bit to a preset value according to the control signal.
  38. 根据权利要求35所述的方法，其特征在于，所述方法还包括：The method according to claim 35, wherein the method further comprises:
    若所述电池的输出电压异常，则输出报警提示信息。If the output voltage of the battery is abnormal, an alarm message is output.
  39. 根据权利要求36所述的方法，其特征在于，所述电池还包括：The method of claim 36, wherein the battery further comprises:
    储能元件，用于电连接于所述电池以及所述比较电路，当所述电池的输出电压异常时，所述储能元件能够为所述比较电路供电。The energy storage element is used to be electrically connected to the battery and the comparison circuit. When the output voltage of the battery is abnormal, the energy storage element can supply power to the comparison circuit.
  40. 根据权利要求39所述的方法，其特征在于，所述比较电路包括第一供电端，所述第一供电端电连接于所述电池的输出接口与所述储能元件之间，以通过所述电池或所述储能元件为所述比较电路供电。The method according to claim 39, wherein the comparison circuit comprises a first power supply terminal, and the first power supply terminal is electrically connected between the output interface of the battery and the energy storage element to pass the The battery or the energy storage element supplies power to the comparison circuit.
  41. 根据权利要求40所述的方法，其特征在于，所述比较电路还包括第二供电端，所述第二供电端电连接于接地端。The method according to claim 40, wherein the comparison circuit further comprises a second power supply terminal, and the second power supply terminal is electrically connected to the ground terminal.
  42. 根据权利要求39所述的方法，其特征在于，所述储能元件与所述电池的输出接口和接地端串联。The method according to claim 39, wherein the energy storage element is connected in series with the output interface and the ground terminal of the battery.
  43. 根据权利要求39所述的方法，其特征在于，所述储能元件包括电容。The method of claim 39, wherein the energy storage element comprises a capacitor.
  44. 根据权利要求40所述的方法，其特征在于，所述电池还包括：The method of claim 40, wherein the battery further comprises:
    上拉电阻，用于电连接于所述比较电路的第一供电端与所述比较电路的输出端；A pull-up resistor for electrically connecting to the first power supply terminal of the comparison circuit and the output terminal of the comparison circuit;
    所述上拉电阻串联在所述电池的输出接口与所述储能元件之间。The pull-up resistor is connected in series between the output interface of the battery and the energy storage element.
  45. 根据权利要求40所述的方法，其特征在于，所述电池还包括：The method of claim 40, wherein the battery further comprises:
    滤波电路，用于电连接于所述比较电路的第一输入端和所述比较电路的第一供电端。The filter circuit is configured to be electrically connected to the first input terminal of the comparison circuit and the first power supply terminal of the comparison circuit.
  46. 根据权利要求36所述的方法，其特征在于，所述稳压电路包括：The method according to claim 36, wherein the voltage stabilizing circuit comprises:
    稳压二极管，用于与所述电池和接地端串联。The Zener diode is used in series with the battery and the ground terminal.
  47. 根据权利要求46所述的方法，其特征在于，所述稳压电路还包括：The method of claim 46, wherein the voltage stabilizing circuit further comprises:
    第一电阻，用于串联在所述稳压二极管和所述电池之间。The first resistor is used to connect in series between the Zener diode and the battery.
  48. 根据权利要求36所述的方法，其特征在于，所述电池还包括：The method of claim 36, wherein the battery further comprises:
    分压电路，电连接于所述电池的输出接口和所述比较电路的第一输入端，用于分压所述电池的输出电压，将分压后的电压输入所述比较电路的第一输入端。A voltage divider circuit, electrically connected to the output interface of the battery and the first input terminal of the comparison circuit, used to divide the output voltage of the battery, and input the divided voltage into the first input of the comparison circuit end.
  49. 根据权利要求48所述的方法，其特征在于，所述分压电路包括串联的第二电阻和第三电阻。The method of claim 48, wherein the voltage divider circuit comprises a second resistor and a third resistor connected in series.
  50. 根据权利要求35所述的方法，其特征在于，所述比较电路的输出端电连接有第四电阻。The method according to claim 35, wherein the output terminal of the comparison circuit is electrically connected with a fourth resistor.
  51. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有可执行代码，所述可执行代码用于实现如权利要求35至50中任一项所述的电池检测方法。A computer-readable storage medium, wherein executable code is stored in the computer-readable storage medium, and the executable code is used to implement the battery detection method according to any one of claims 35 to 50 .
PCT/CN2019/121939 2019-11-29 2019-11-29 Battery detection circuit and method, battery, electronic device, and storage medium WO2021102901A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101158710A (en) * 2006-08-17 2008-04-09 美国凹凸微系有限公司 Monitoring battery cell voltage
CN101425678A (en) * 2007-10-30 2009-05-06 比亚迪股份有限公司 Battery protection method and system
CN207117578U (en) * 2017-04-07 2018-03-16 深圳市大疆创新科技有限公司 Protection circuit
CN108323221A (en) * 2017-08-25 2018-07-24 深圳市云中飞网络科技有限公司 Terminal device, battery component and battery protecting plate
US20190154759A1 (en) * 2017-11-17 2019-05-23 Sanken Electric Co., Ltd. Battery voltage detector

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4931378B2 (en) * 2005-07-06 2012-05-16 三洋電機株式会社 Power supply for vehicle
US8922218B2 (en) * 2011-12-28 2014-12-30 O2Micro Inc Detection circuits for batteries
CN104052027A (en) * 2013-03-11 2014-09-17 深圳市海洋王照明工程有限公司 Cell undervoltage protection circuit and DC air fan
CN104811015A (en) * 2014-01-23 2015-07-29 立锜科技股份有限公司 Power supply device, and control circuit and control method thereof
CN203745536U (en) * 2014-02-28 2014-07-30 惠州中城电子科技有限公司 Total-voltage-loss detection system of three-phase electronic type multifunctional meter
CN204092031U (en) * 2014-07-28 2015-01-14 深圳京柏医疗设备有限公司 A kind of ultrasonic fetal gage
CN105656170A (en) * 2016-02-25 2016-06-08 成都迅德科技有限公司 Novel storage battery under-voltage detection circuit
CN105871004B (en) * 2016-04-15 2018-09-11 智恒科技股份有限公司 Power type battery discharge prevention system and its guard method
EP3503341B1 (en) * 2017-08-25 2021-08-04 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Terminal equipment, battery system and battery abnormality detecting device
CN110492184B (en) * 2018-05-14 2021-06-25 深圳沃达泰克科技有限公司 Storage battery maintenance device and method and electronic equipment
CN209516621U (en) * 2019-02-01 2019-10-18 深圳市冠旭电子股份有限公司 Under-voltage protecting circuit and cell apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101158710A (en) * 2006-08-17 2008-04-09 美国凹凸微系有限公司 Monitoring battery cell voltage
CN101425678A (en) * 2007-10-30 2009-05-06 比亚迪股份有限公司 Battery protection method and system
CN207117578U (en) * 2017-04-07 2018-03-16 深圳市大疆创新科技有限公司 Protection circuit
CN108323221A (en) * 2017-08-25 2018-07-24 深圳市云中飞网络科技有限公司 Terminal device, battery component and battery protecting plate
US20190154759A1 (en) * 2017-11-17 2019-05-23 Sanken Electric Co., Ltd. Battery voltage detector

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