Method, circuit and electronic device for increasing battery output voltage

Abstract

The present application discloses a method, circuit and electronic device for increasing the output voltage of a battery, and relates to the field of battery technology. The method for increasing the output voltage of a battery includes: obtaining the internal impedance of the battery and the wiring impedance between the output end of the battery and multiple load devices; obtaining the DC impedance of the battery; obtaining the input voltage and input current of the load device; obtaining the threshold voltage according to the input voltage, input current, internal impedance of the battery, wiring impedance and DC impedance of the load device; when the output voltage of the battery is less than the threshold voltage, the output voltage of the battery is boosted. Based on this scheme, when the output voltage of the battery is less than the threshold voltage, the output voltage can be boosted, thereby effectively utilizing the electric energy of the low-voltage section of the battery.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a method, circuit and electronic device for increasing the output voltage of a battery. Background Art

[0002] At present, many electronic devices are powered by lithium-ion batteries. In order to increase the battery capacity of lithium-ion batteries, a certain amount of silicon-carbon negative electrode material is often added to the graphite negative electrode of the lithium-ion battery, which greatly increases the battery capacity of the lithium-ion battery in the low-voltage section.

[0003] However, most load devices in electronic devices generally require a higher input voltage to work properly. For example, Wi-Fi, integrated power management chips, etc. When the output voltage of a lithium-ion battery is low, even if silicon-carbon negative electrode materials are added to increase the battery capacity of the low-voltage section of the lithium-ion battery, it is still impossible to provide a higher input voltage for the load device, which may cause damage to the load device or abnormal shutdown of the electronic device.

[0004] Therefore, a new solution is urgently needed to solve the above problems. Summary of the invention

[0005] The present application provides a method, circuit and electronic device for increasing the output voltage of a battery. The method for increasing the output voltage of a battery includes: obtaining the internal impedance of the battery and the wiring impedance between the output end of the battery and multiple load devices; obtaining the DC impedance of the battery; obtaining the input voltage and input current of the load device; obtaining the threshold voltage according to the input voltage, input current, internal impedance of the battery, wiring impedance and DC impedance of the load device; when the output voltage of the battery is less than the threshold voltage, the output voltage of the battery is boosted. Based on this scheme, when the output voltage of the battery is less than the threshold voltage, the output voltage can be boosted, thereby effectively utilizing the electric energy of the low-voltage section of the battery, especially lithium-ion batteries containing silicon-carbon negative electrode materials, to avoid the situation where the battery capacity in the low-voltage section of the battery is high but cannot provide input voltage for the load device.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] In a first aspect, a method for increasing the output voltage of a battery is provided, which is applied to an electronic device. The electronic device includes a plurality of load devices and a battery, and the battery supplies power to the plurality of load devices. The method for increasing the output voltage of the battery includes: obtaining the internal impedance of the battery and the wiring impedance between the output end of the battery and the plurality of load devices. Obtaining the DC impedance of the battery. Obtaining the input voltage and input current of the load device. Obtaining a threshold voltage according to the input voltage, input current, internal impedance of the battery, wiring impedance, and DC impedance of the load device. When the output voltage of the battery is less than the threshold voltage, the output voltage of the battery is boosted. When the output voltage of the battery is not less than the threshold voltage, the output voltage of the battery is directly output.

[0008] In an embodiment of the present application, the internal impedance of the battery, the wiring impedance between the output end of the battery and multiple load devices, and the DC impedance of the battery are first obtained. Then the input voltage and input current of the load device are obtained. Finally, the threshold voltage is obtained according to the input voltage, input current, internal impedance of the battery, wiring impedance, and DC impedance of the load device, so that when the output voltage of the battery is less than the threshold voltage, the output voltage of the battery is boosted, and when the output voltage of the battery is not less than the threshold voltage, the output voltage of the battery is directly output. In this way, the electric energy of the low-voltage section of the battery is effectively utilized, avoiding the situation where the battery capacity of the low-voltage section of the battery is high but cannot provide input voltage for the load device.

[0009] Optionally, threshold voltage = input voltage + input current * (internal impedance + trace impedance + DC impedance).

[0010] Optionally, obtaining the DC impedance of the battery may include: obtaining multiple DC impedances of the battery at multiple temperatures, so as to obtain corresponding threshold voltages at multiple temperatures, thereby being able to more finely adjust the output voltage of the battery.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the threshold voltage is obtained according to the input voltage, input current, internal impedance of the battery, wiring impedance, and DC impedance of the load device, including: in a fixed application scenario, multiple threshold voltages are obtained according to the input voltage, input current, internal impedance of the battery, wiring impedance, and DC impedance of the load device tested multiple times at a fixed temperature. The maximum value of the multiple threshold voltages is used as the threshold voltage in the fixed application scenario and fixed temperature.

[0012] In this implementation, in a certain application scenario, multiple threshold voltages can be obtained based on the input voltage, input current, internal impedance of the battery, wiring impedance, and DC impedance at a fixed temperature of the load device tested multiple times. Then the maximum value of the multiple threshold voltages is used as the threshold voltage, so that it can be more accurately determined whether the output voltage of the battery exceeds the threshold voltage.

[0013] In combination with the first aspect, in certain implementations of the first aspect, obtaining the input voltage and input current of the load device includes: obtaining the minimum input voltage and input current of the load device.

[0014] In this implementation, the minimum input voltage and input current of the load device can be obtained. Thus, the threshold voltage can be obtained according to the minimum input voltage and input current of the load device, the internal impedance of the battery, the wiring impedance, and the DC impedance, and then it can be more accurately determined whether the output voltage of the battery exceeds the threshold voltage.

[0015] In combination with the first aspect, in some implementations of the first aspect, obtaining the input voltage and input current of the load device includes: obtaining the input voltage and input current of the load device in multiple application scenarios.

[0016] In this implementation, by acquiring the input voltage and input current of the load device in multiple application scenarios, corresponding multiple threshold voltages can be obtained, so that the output voltage of the battery in multiple application scenarios can be accurately judged.

[0017] In combination with the first aspect, in some implementations of the first aspect, the threshold voltage includes multiple threshold voltages, and each threshold voltage corresponds to a temperature and / or an application scenario.

[0018] In this implementation, different threshold voltages can be obtained according to different temperatures and different application scenarios, so that it can be accurately determined whether the output voltage of the battery under different temperatures and different application scenarios needs to be boosted.

[0019] In combination with the first aspect, in some implementations of the first aspect, obtaining the DC impedance of the battery includes: obtaining multiple DC impedances of the battery at multiple states of charge.

[0020] In this implementation, multiple DC impedances of the battery under multiple charge states can be obtained to obtain multiple threshold voltages, thereby accurately determining whether the output voltage of the battery under multiple charge states needs to be boosted.

[0021] In combination with the first aspect, in some implementations of the first aspect, the battery includes a battery protection board, and the internal impedance of the battery includes the impedance of the battery protection board.

[0022] In this implementation, the internal impedance of the battery may be the impedance of the battery protection board, so that the internal impedance of the battery may be obtained more quickly to facilitate obtaining the threshold voltage.

[0023] In the second aspect, a circuit for increasing the output voltage of a battery is provided, based on a method for increasing the output voltage of a battery. The battery includes a battery cell and a battery connector. The circuit for increasing the output voltage of the battery includes a control module, a voltage acquisition module, a bypass module, and a boost module. The first end of the voltage acquisition module is connected to the first end of the control module, and the voltage acquisition module is used to acquire the output voltage of the battery. The first end of the bypass module is connected to the second end of the control module, the second end of the bypass module is connected to the battery cell, and the third end of the bypass module is connected to the battery connector. The bypass module is used to bypass the output voltage of the battery. The first end of the boost module is connected to the third end of the control module, the second end of the boost module is connected to the battery cell, and the third end of the boost module is connected to the battery connector; the boost module is used to boost the output voltage of the battery. The control module is used to control the bypass module to conduct the battery cell and the battery connector when the output voltage of the battery is not less than the threshold voltage. When the output voltage of the battery is less than the threshold voltage, the boost module is controlled to conduct the battery cell and the battery connector.

[0024] In this implementation, the voltage acquisition module monitors the output voltage of the battery in real time and sends it to the control module. When the output voltage of the battery is not less than the threshold voltage, the control module controls the bypass module to conduct the battery cell and the battery connector, so that the electric energy of the battery cell is directly sent to the battery connector for use by the load device. When the output voltage of the battery is less than the threshold voltage, the control module controls the boost module to conduct the battery cell and the battery connector, thereby boosting the output voltage of the battery and effectively utilizing the electric energy of the low-voltage section of the battery.

[0025] In combination with the second aspect, in certain implementations of the second aspect, the bypass module includes a first MOS tube, a gate of the first MOS tube is connected to the control module, a drain of the first MOS tube is connected to the battery cell, and a source of the first MOS tube is connected to the battery connector.

[0026] In this implementation, when the bypass module is turned on, the first MOS tube is turned on, so that the electric energy output by the battery cell is directly sent to the battery connector for use by the load device.

[0027] In combination with the second aspect, in certain implementations of the second aspect, the boost module includes a first inductor and a second MOS tube, the first end of the first inductor is connected to the battery core, the second end of the first inductor is connected to the drain of the second MOS tube, the gate of the second MOS tube is connected to the control module, and the source of the second MOS tube is connected to the battery connector.

[0028] In this implementation, when the boost module is turned on, the second MOS tube is turned on, so that the electric energy of the battery cell and the electric energy stored in the first inductor are sent to the battery connector, thereby increasing the output voltage of the battery for use by the load device.

[0029] In combination with the second aspect, in certain implementations of the second aspect, the boost module also includes a third MOS tube, the gate of the third MOS tube is connected to the control module, the drain of the third MOS tube is connected to the drain of the second MOS tube, and the source of the third MOS tube is grounded.

[0030] In this implementation, when the boost module is turned on, the third MOS tube can protect the boost module to prevent the boost module from being burned out due to excessive voltage, or even damaging other electronic devices.

[0031] In a third aspect, a battery is provided, comprising a battery cell, a battery connector, and a circuit for increasing the battery output voltage. The first end of the circuit for increasing the battery output voltage is connected to the battery cell, and the second end of the circuit for increasing the battery output voltage is connected to the battery connector.

[0032] In this implementation, the battery cell is used to provide electrical energy, and the circuit for increasing the battery output voltage is used to boost the output voltage when the battery output voltage is less than a threshold voltage, thereby supplying power to the load device through the battery connector to maintain normal operation of the load device.

[0033] In combination with the third aspect, in certain implementations of the third aspect, the battery further includes a thermistor, a first end of the thermistor is connected to the battery connector, and a second end of the thermistor is grounded.

[0034] In this implementation, the internal temperature of the battery is detected by a thermistor to obtain the output voltage of the battery at a certain temperature, which is then compared with the threshold voltage at the temperature to determine whether the output voltage of the battery needs to be increased.

[0035] In combination with the third aspect, in certain implementations of the third aspect, the battery further includes a protection chip, a precision resistor, a fourth MOS tube, and a fifth MOS tube. The first end of the precision resistor is respectively connected to the battery cell, the first end of the protection chip, and the third end of the circuit for increasing the battery output voltage, the second end of the precision resistor is respectively connected to the drain of the fourth MOS tube, the second end of the protection chip, and the fourth end of the circuit for increasing the battery output voltage, the gate of the fourth MOS tube is connected to the third end of the protection chip, the source of the fourth MOS tube is connected to the source of the fifth MOS tube, the gate of the fifth MOS tube is connected to the fourth end of the protection chip, and the drain of the fifth MOS tube is connected to the battery connector and the fifth end of the protection chip.

[0036] In this implementation, a precision resistor is used to detect the current of the battery, and a protection chip and a dual MOS tube consisting of a fourth MOS tube and a fifth MOS tube constitute a first protection mechanism. When the current of the battery exceeds a threshold current, the protection chip controls the fourth MOS tube and the fifth MOS tube to be disconnected, thereby protecting the battery.

[0037] In a fourth aspect, an electronic device is provided, the electronic device comprising a plurality of load devices and a battery, wherein the battery is connected to the plurality of load devices respectively to supply power to the plurality of load devices. The plurality of load devices are respectively used to implement different functions.

[0038] In this implementation, when the output voltage of the battery is less than the threshold voltage, the output voltage of the battery can be boosted to power the load device, thereby effectively utilizing the electrical energy of the low-voltage section of the battery, especially lithium-ion batteries containing silicon-carbon negative electrode materials.

[0039] In a fifth aspect, an electronic device is provided, the electronic device comprising: one or more processors, and a memory. The memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code comprises computer instructions, and the one or more processors call the computer instructions to enable the electronic device to execute the method.

[0040] In a sixth aspect, a chip system is provided. The chip system is applied to an electronic device, and the chip system includes one or more processors. The one or more processors are used to call computer instructions so that the electronic device executes the described method.

[0041] In a seventh aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes instructions, and when the instructions are executed on an electronic device, the electronic device executes the described method. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of a scenario of a mobile communication system to which an embodiment of the present application is applicable;

[0043] Figure 2 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0044] Figure 3 A schematic diagram of the structure of a software system provided in an embodiment of the present application;

[0045] Figure 4 A flowchart of a method for increasing the output voltage of a battery provided in an embodiment of the present application;

[0046] Figure 5 A flowchart of a method for increasing the output voltage of a battery provided in another embodiment of the present application;

[0047] Figure 6 A schematic diagram of the structure of a circuit for increasing the output voltage of a battery provided in another embodiment of the present application;

[0048] Figure 7A circuit diagram of a circuit for increasing a battery output voltage provided by another embodiment of the present application;

[0049] Figure 8 A schematic diagram of the structure of a battery provided in an embodiment of the present application;

[0050] Fig. 9 A circuit diagram of a battery provided in an embodiment of the present application;

[0051] Fig.10 A voltage variation diagram of a circuit for increasing the output voltage of a battery provided in another embodiment of the present application;

[0052] Fig.11 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0053] Fig.12 A schematic diagram of the structure of an electronic device provided in yet another embodiment of the present application. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text is only a description of the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0055] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0056] In order to facilitate the understanding of the embodiments of the present application, the relevant concepts involved in the embodiments of the present application are first briefly described.

[0057] 1. Lithium-ion battery.

[0058] In the field of circuit technology, a lithium-ion battery refers to a rechargeable battery that uses lithium-ion embedded compounds as positive electrode materials and graphite or other carbon-based materials as negative electrode materials. It mainly relies on the movement of lithium ions between the positive and negative electrodes to work. During the charging and discharging process, lithium ions are embedded and deintercalated back and forth between the two electrodes. That is, when charging, lithium ions are deintercalated from the positive electrode, embedded in the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; when discharging, the opposite is true. The voltage range of lithium-ion batteries is generally 2.8V~4.2V, and the typical voltage is 3.7V. When the voltage of a lithium-ion battery is lower than 2.8V or higher than 4.2V, the lithium-ion battery will be at risk of damage.

[0059] It should be noted that silicon-carbon anode material is a new type of lithium-ion battery anode material. It is a material obtained by uniformly depositing silicon nanoparticles inside the porous carbon material skeleton. The theoretical capacity of the silicon-based anode is as high as 3580mAh / g, far exceeding the 372mAh / g of the traditional graphite anode. The theoretical specific capacity of the new silicon-carbon anode has reached 4200mAh / g, which can bring a 20% - 50% increase in energy density, which can significantly improve the battery energy density.

[0060] 2. Open circuit voltage (OCV).

[0061] In the field of circuit technology, open circuit voltage refers to the voltage difference between the two poles of a battery when there is no current flowing through it and it is a reflection of the basic characteristics of the battery. In the battery production process, OCV testing is an important step to evaluate the performance parameters of the battery, such as open circuit voltage, AC internal resistance, and case voltage. OCV testing can help detect the performance parameters of the battery, calculate the starting point of the battery state of charge, and evaluate the battery's charge and discharge state, capacity, and aging condition. Through OCV testing, the OCV values ​​of multiple batteries can also be obtained to better understand the performance parameters of the battery and help customers quickly screen batteries.

[0062] 3. State of charge (SOC).

[0063] In the field of circuit technology, the state of charge, also known as the remaining capacity, refers to the ratio of the remaining dischargeable capacity of the battery to the fully charged capacity, usually expressed as a percentage. Its value range is 0~1. When SOC=0, it means that the battery is fully discharged, and when SOC=1, it means that the battery is fully charged. For example, the remaining capacity display of electronic equipment. It is an important parameter to measure the use of the battery and reflects the actual availability of the battery. SOC cannot be measured directly and is usually estimated indirectly by measuring parameters such as voltage, current and temperature. The accuracy of SOC is affected by factors such as operating temperature, charge and discharge current, number of cycles and self-discharge.

[0064] 4. Direct current resistance (DCR).

[0065] In the field of circuit technology, DC impedance refers to the resistance value of a battery in a DC circuit. It is an important parameter to measure the internal resistance of a battery, which affects the discharge performance and thermal performance of the battery. The size of DCR not only reflects the performance of the battery in high-power applications, but also determines the energy loss and heat generation of the battery during the charging and discharging process. Generally speaking, the smaller the DCR, the stronger the power capacity of the battery and the better the performance. Therefore, in the design and use of batteries, reducing DCR is one of the important measures to improve battery performance.

[0066] The above is a brief introduction to the terms involved in the embodiments of the present application, which will not be repeated below.

[0067] Combine the following Figures 1 to 3 , firstly, the application scenarios of the embodiments of the present application and the structure of the electronic device to which they are applied are introduced.

[0068] Figure 1 FIG. 1 is a schematic diagram of a scenario of a mobile communication system to which an embodiment of the present application is applicable. Figure 1 As shown, the user can use the electronic device 10 to communicate with the base station 20. The embodiment of the present application does not specifically limit the type of the electronic device 10. In some embodiments, the electronic device 10 can be a mobile phone, a wearable device (such as a smart bracelet, a smart watch, a headset, etc.), a tablet computer, a laptop computer, a handheld computer, a notebook computer, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a cellular phone, a personal digital assistant (personal digital assistant, PDA), an augmented reality (Augmented reality, AR)\virtual reality (virtual reality, VR) device and other IOT (Internet of Things, Internet of Things) devices, and can also be a television, a large screen, a printer, a projector and other devices. For ease of understanding, the following embodiments are exemplified by taking the electronic device 10 as a mobile phone as an example.

[0069] Figure 2 FIG. 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 2As shown, in an embodiment of the present application, the electronic device 10 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, a first antenna 1, a second antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, and a subscriber identification module (SIM) card interface 195, etc.

[0070] Exemplarily, the sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

[0071] It should be noted that Figure 2 The structure shown does not constitute a specific limitation on the electronic device. In other embodiments of the present application, the electronic device may include Figure 2 More or fewer components than those shown, or the electronic device may include Figure 2 Combinations of some of the components shown, or the electronic device may include Figure 2 Subassemblies of some of the components shown. Figure 2 The components shown may be implemented in hardware, software, or a combination of software and hardware.

[0072] The processor 110 may include one or more processing units. For example, the processor 110 may include at least one of the following processing units: an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and a neural-network processing unit (NPU). Different processing units may be independent devices or integrated devices. The controller may generate an operation control signal according to the instruction opcode and the timing signal to complete the control of fetching and executing instructions.

[0073] The processor 110 may also be provided with a memory for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may store instructions or data that the processor 110 has just used or cyclically used. If the processor 110 needs to use the instruction or data again, it may be directly called from the memory. This avoids repeated access, reduces the waiting time of the processor 110, and thus improves the efficiency of the system.

[0074] The USB interface 130 is used to connect with other devices, so as to realize functions such as communication connection or charging of the electronic device 10 with the outside world, for example, multiple charging protocol functions of the electronic device, mobile (On the go, OTG) USB function, analog headphone function, digital headphone function and display projection (DisplayPort, DP) function, etc.

[0075] Figure 2 The connection relationship between the modules shown is only a schematic illustration and does not constitute a limitation on the connection relationship between the modules of the electronic device. Optionally, the modules of the electronic device may also adopt a combination of multiple connection modes in the above embodiments.

[0076] The charging management module 140 is used to receive power from the charger. While the charging management module 140 is charging the battery 142, it can also power the electronic device through the power management module 141. The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and / or the charging management module 140, and powers the processor 110, the internal memory 121, the display 194, the camera 193, and the wireless communication module 160. The power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle number, and battery health status (e.g., leakage, impedance). Optionally, the power management module 141 can be set in the processor 110, or the power management module 141 and the charging management module 140 can be set in the same device.

[0077] The wireless communication function of the electronic device can be implemented by the first antenna 1, the second antenna 2, the mobile communication module 150, the wireless communication module 160, the modulation and demodulation processor, and the baseband processor. The first antenna 1 and the second antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the electronic device can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve the utilization rate of the antenna.

[0078] The mobile communication module 150 can provide a wireless communication solution applied to the electronic device, such as at least one of the following solutions: a second generation (2G) mobile communication solution, a third generation (3G) mobile communication solution, a fourth generation (5G) mobile communication solution, and a fifth generation (5G) mobile communication solution.

[0079] The modem processor may include a modulator and a demodulator. The modulator is used to modulate the low-frequency baseband signal to be sent into a medium-high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor for processing. After the low-frequency baseband signal is processed by the baseband processor, it is passed to the application processor. The application processor outputs a sound signal through an audio device (e.g., a speaker 170A, a receiver 170B), or displays an image or video through a display screen 194. In some embodiments, the modem processor may be an independent device. In other embodiments, the modem processor may be independent of the processor 110 and may be set in the same device as the mobile communication module 150 or other functional modules.

[0080] Similar to the mobile communication module 150, the wireless communication module 160 can also provide wireless communication solutions for application in electronic devices, such as at least one of the following solutions: wireless local area networks (WLAN), Bluetooth (BT), Bluetooth low energy (BLE), ultra wide band (UWB), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), and infrared (IR) technology.

[0081] In some embodiments, the first antenna 1 of the electronic device is coupled to the mobile communication module 150, and the second antenna 2 of the electronic device is coupled to the wireless communication module 160, so that the electronic device can communicate with the network and other electronic devices through wireless communication technology.

[0082] The external memory interface 120 can be used to connect an external memory card, such as a secure digital (SD) card, to expand the storage capacity of the electronic device. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music and videos can be stored in the external memory card.

[0083] The internal memory 121 may be used to store computer executable program codes, which include instructions. The internal memory 121 may include a program storage area and a data storage area.

[0084] In some embodiments, the pressure sensor 180A may be provided on the display screen 194. There are many types of pressure sensors 180A, for example, they may be resistive pressure sensors, inductive pressure sensors or capacitive pressure sensors. A capacitive pressure sensor may include at least two parallel plates having a conductive material. When a force acts on the pressure sensor 180A, the capacitance between the electrodes changes, and the electronic device determines the intensity of the pressure based on the change in capacitance. When a touch operation acts on the display screen 194, the electronic device detects the touch operation based on the pressure sensor 180A. The electronic device may also calculate the position of the touch based on the detection signal of the pressure sensor 180A. In some embodiments, touch operations acting on the same touch position but with different touch operation intensities may correspond to different operation instructions. For example: when a touch operation with a touch operation intensity less than the first pressure threshold acts on a short message application icon, an instruction to view a short message is executed; when a touch operation with a touch operation intensity greater than or equal to the first pressure threshold acts on a short message application icon, an instruction to create a new short message is executed.

[0085] The fingerprint sensor 180H is used to collect fingerprints. The electronic device can use the collected fingerprint characteristics to achieve functions such as unlocking, accessing application locks, taking photos, and answering calls.

[0086] The touch sensor 180K is also called a touch control device. The touch sensor 180K can be set on the display screen 194. The touch sensor 180K and the display screen 194 form a touch screen, which is also called a touch control screen. The touch sensor 180K is used to detect touch operations acting on or near it. The touch sensor 180K can pass the detected touch operation to the application processor to determine the type of touch event. Visual output related to the touch operation can be provided through the display screen 194. In other embodiments, the touch sensor 180K can also be set on the surface of the electronic device and set at a different position from the display screen 194.

[0087] The key 190 includes a power key and a volume key. The key 190 can be a mechanical key or a touch key. The electronic device can receive a key input signal and implement a function related to the case input signal.

[0088] It should be understood that the above is only an example of the structure of the electronic device 10, and the electronic device 10 may also include other subsystems or devices, which can be configured and modified as needed, and the embodiments of the present application do not impose any limitations on this.

[0089] Based on the structural diagram of the above electronic device, the software system involved in the electronic device is briefly introduced below.

[0090] Figure 3This is a schematic diagram of the structure of a software system of an electronic device provided in an embodiment of the present application. The electronic device can be Figure 2 The electronic device shown in . Figure 3 As shown in FIG. 1 , the software system may include an application layer, a system framework layer (framework, FWK), a system operation layer, a hardware abstract layer (hardware abstract layer, HAL) and a kernel layer. The following describes each of them in detail.

[0091] The application layer can include a series of application packages, such as desktop applications, contact applications, call applications, short messages, gallery, video applications, calendar, camera, navigation applications, map applications, Bluetooth, WLAN, email client and other applications.

[0092] The system framework layer provides an application programming interface (API) and a programming framework for the application programs of the application layer. The system framework layer may include some predefined functions, such as a function for receiving events sent by the system framework layer.

[0093] Specifically, the system framework layer may include view system (Views), content providers (ContentProviders), resource manager (Resource Manager), notification manager (Notification Manager), activity manager (Activity Manager), window manager (Windows Manager), etc.

[0094] The view system includes visual controls, such as controls for displaying text, controls for displaying images, etc. The view system can be used to build applications. A display interface can be composed of one or more views. For example, a display interface including a text notification icon can include a view for displaying text and a view for displaying images.

[0095] Content providers allow applications to access another application's data (such as a contact database), or to share their own data. Content providers are used to store and retrieve data and make it accessible to applications. The data can include video, images, audio, calls made and received, browsing history and bookmarks, phone books, etc.

[0096] The resource manager provides various resources for applications, such as localized strings, icons, images, layout files, video files, and so on.

[0097] The notification manager enables applications to display notification information in the status bar. It can be used to convey notification-type messages and can disappear automatically after a short stay without user interaction. For example, the notification manager is used to notify download completion, message reminders, etc. The notification manager can also be a notification that appears in the system top status bar in the form of a chart or scroll bar text, such as notifications of applications running in the background, or a notification that appears on the screen in the form of a dialog window. For example, a text message is displayed in the status bar, a prompt sound is emitted, an electronic device vibrates, an indicator light flashes, etc.

[0098] The activity manager is used to manage the application life cycle and provide common navigation back functionality.

[0099] The window manager is used to manage window programs. The window manager can obtain the display screen size, determine whether there is a status bar, lock the screen, capture the screen, etc.

[0100] The system runtime layer includes program libraries and program runtime libraries. For example, in the Android system, program libraries include some C / C++ libraries that can be used by different components in the Android system. They provide services to developers through the Android application framework. The program runtime library includes a core library that provides most of the functions of the JAVA programming language core library.

[0101] The hardware abstraction layer is the interface layer between the hardware layer and the software layer, which is used to abstract the hardware. The hardware abstraction layer includes audio and video interfaces, call interfaces, wireless fidelity (WiFi) interfaces, etc.

[0102] The kernel layer may include display drivers, camera drivers, sensor drivers, etc., which are used to drive related hardware of the hardware layer, such as display screens, cameras, sensors, etc.

[0103] The technical problems existing in the relevant technologies are introduced in detail below.

[0104] Since lithium-ion batteries have a high battery capacity, many electronic devices use lithium-ion batteries to power internal load devices. Recently, in order to increase the battery capacity of lithium-ion batteries, a certain amount of silicon-carbon negative electrode material is often added to the graphite negative electrode of the lithium-ion battery, which greatly increases the battery capacity of the lithium-ion battery. However, the battery capacity increase of lithium-ion batteries is mainly concentrated in the low-voltage segment, such as 2.75V~3.5V. Moreover, as more silicon-carbon materials are added to the graphite negative electrode of the lithium-ion battery, the capacitance of the lithium-ion battery will be concentrated in the lower voltage segment, for example, 2.0V~3.5V.

[0105] At the same time, although the battery capacity of lithium-ion batteries has been greatly improved. However, the input voltage requirements of the load devices inside electronic devices have not changed much. For example, the input voltage range of Wi-Fi is 2.2~5V, the input voltage range of universal flash storage (UFS) and double data rate synchronous dynamic random access memory (DDR SDRAM) is 2.5~5V, the input voltage range of power management integrated circuit (PMIC) is 2.5~5V, the input voltage range of smart-power amplifier (smart-PA) is 2.7~5V, and the input voltage range of organic light emitting display (OLED) is 2.5~5V. When the output voltage of the lithium-ion battery is low (for example, <3V), due to the line impedance between the output end of the lithium-ion battery and the load end, the output voltage of the lithium-ion battery will produce a certain voltage drop, which cannot meet the input voltage requirements of the load devices. Even if the addition of silicon-carbon negative electrode materials increases the battery capacity of the low-voltage section of the lithium-ion battery, it is still impossible to provide a higher input voltage for the load device, which may cause damage to the load device or abnormal shutdown of the electronic equipment.

[0106] In view of this, an embodiment of the present application provides a method for increasing the output voltage of a battery, and the method for increasing the output voltage of a battery includes: obtaining the internal impedance of the battery and the wiring impedance between the output end of the battery and multiple load devices; obtaining the DC impedance of the battery; obtaining the input voltage and input current of the load device; obtaining the threshold voltage according to the input voltage, input current, internal impedance of the battery, wiring impedance, and DC impedance of the load device; when the output voltage of the battery is less than the threshold voltage, the output voltage of the battery is boosted. Based on this scheme, when the output voltage of the battery is less than the threshold voltage, the output voltage can be boosted, thereby effectively utilizing the electric energy of the low-voltage section of the battery, especially lithium-ion batteries containing silicon-carbon negative electrode materials, to avoid the situation where the battery capacity of the low-voltage section of the battery is high but cannot provide input voltage for the load device.

[0107] Combine the following Figures 4 to 5 , and then the method for increasing the battery output voltage provided in the embodiment of the present application is introduced in detail.

[0108] Figure 4 This is a flow chart of a method for increasing the output voltage of a battery provided in an embodiment of the present application. Figure 4As shown, in one embodiment provided in the present application, a method for increasing the output voltage of a battery is provided, which is applied to an electronic device. The electronic device includes a plurality of load devices and a battery. The battery is used to supply power to the plurality of load devices. Exemplarily, the load device can be an electronic device such as Wi-Fi, an embedded multi-media card (embedded multi-media card, eMMC), a secure digital card (secure digital card, SD), an integrated power management circuit, etc.

[0109] The method for increasing the battery output voltage comprises the following steps:

[0110] S401, the electronic device obtains the internal impedance of the battery and the wiring impedance between the output end of the battery and a plurality of load devices.

[0111] For example, in order to accurately obtain the total impedance of the battery in the process of supplying power to the load device, the internal impedance of the battery and the wiring impedance between the output end of the battery and the multiple load devices can be obtained first, and the internal impedance of the battery and the wiring impedance between the output end of the battery and the multiple load devices can be stored in a storage device.

[0112] It should be noted that the battery may include a battery cell and a battery protection board, wherein the battery cell is used to store electric energy and the battery protection board is used to protect the charging and discharging process of the battery cell. Therefore, the internal impedance of the battery may be the impedance of the battery protection board.

[0113] It should be understood that the wiring impedance is the resistance encountered by the electric energy of the battery cell during the transmission process of the wire, which will cause consumption of the electric energy of the battery cell.

[0114] S402: The electronic device obtains the DC impedance of the battery.

[0115] Exemplarily, the battery may be modeled to obtain the open circuit voltage and state of charge of the battery, and the DC impedance of the battery may be obtained according to the open circuit voltage and current.

[0116] It should be noted that when the battery is at different temperatures and / or charge states, different DC impedances may be obtained.

[0117] It should be understood that a fuel gauge may be used to detect parameters such as the state of charge and open circuit voltage of the battery.

[0118] S403: The electronic device obtains the input voltage and input current of the load device.

[0119] For example, the input power of the load device of the electronic device in different application scenarios can be evaluated or detected to obtain the input voltage and input current of the load device. The application scenarios of the electronic device can be playing videos, playing games, listening to music, etc.

[0120] It should be noted that the input voltage of the load device can be either the minimum input voltage or the rated input voltage marked in the specification of the load device. The minimum input voltage of the load device is the minimum voltage at which the load device can work normally. When the output voltage of the battery is lower than the threshold voltage calculated from the minimum input voltage, it means that the load device can no longer work normally.

[0121] S404, the electronic device obtains a threshold voltage according to the input voltage and input current of the load device, the internal impedance of the battery, the wiring impedance, and the DC impedance.

[0122] For example, the threshold voltage of the battery under various application scenarios and at different temperatures can be obtained based on the minimum input voltage and input current of the load device under different application scenarios, the internal impedance of the battery, the wiring impedance, and the DC impedance of the battery under different temperatures.

[0123] It should be noted that the threshold voltage of the battery under different application scenarios and different temperatures can be stored in a storage device or a system on chip, etc., and the output voltage of the battery can be directly compared with the threshold voltage when the load device of the electronic device is working later.

[0124] Exemplarily, threshold voltage=input voltage+input current*(internal impedance+trace impedance+DC impedance).

[0125] S405: When the output voltage of the battery is less than the threshold voltage, the electronic device boosts the output voltage of the battery.

[0126] For example, the output voltage of the battery is monitored in real time, and the output voltage of the battery is compared with the threshold voltage corresponding to the application scenario and temperature. When the output voltage of the battery is not less than the threshold voltage, the output voltage of the battery is not processed. When the output voltage of the battery is less than the threshold voltage, the output voltage of the battery is boosted, so that the electric energy of the low-voltage section of the battery is effectively utilized, which can support the operation of the load devices in the electronic device.

[0127] It should be noted that when the output voltage of the battery is not less than the threshold voltage, it means that the output voltage of the battery can meet the needs of the load device. At this time, the output voltage of the battery is directly output without other processing, so that the output voltage of the battery directly supplies power to the load device.

[0128] Figure 5 This is a flow chart of a method for increasing the output voltage of a battery provided by another embodiment of the present application. Figure 5As shown, in one embodiment provided in the present application, a method for increasing the output voltage of a battery is provided, which is applied to an electronic device. The electronic device includes a plurality of load devices and a battery. The battery is used to supply power to the plurality of load devices. The method for increasing the output voltage of the battery includes the following steps:

[0129] S401, the electronic device obtains the internal impedance of the battery and the wiring impedance between the output end of the battery and a plurality of load devices.

[0130] For example, in order to accurately obtain the total impedance of the battery in the process of supplying power to the load device, the internal impedance of the battery and the wiring impedance between the output end of the battery and the multiple load devices can be obtained first, and the internal impedance of the battery and the wiring impedance between the output end of the battery and the multiple load devices can be stored in a storage device.

[0131] It should be noted that the battery may include a battery cell and a battery protection board, wherein the battery cell is used to store electric energy and the battery protection board is used to protect the charging and discharging process of the battery cell. Therefore, the internal impedance of the battery may be the impedance of the battery protection board.

[0132] It should be understood that the routing impedance is the resistance encountered by the electric energy of the battery cell during the transmission of the wire, which will cause consumption of the electric energy of the battery cell.

[0133] S402: The electronic device obtains the DC impedance of the battery at multiple temperatures and / or charge states.

[0134] Exemplarily, the battery may be modeled to obtain the open circuit voltage of the battery at multiple temperatures and / or charge states, and the DC impedance of multiple batteries may be obtained based on the open circuit voltage and current of the battery at multiple temperatures and / or charge states.

[0135] It should be understood that a fuel gauge may be used to detect parameters such as the state of charge and open circuit voltage of the battery.

[0136] S403: The electronic device obtains input voltage and input current of a load device in multiple application scenarios.

[0137] For example, the input power of the load device of the electronic device in different application scenarios can be evaluated or detected to obtain the input voltage and input current of the load device. The application scenarios of the electronic device can be playing videos, playing games, listening to music, etc.

[0138] It should be noted that the input voltage of the load device can be either the minimum input voltage or the rated input voltage marked in the specification of the load device. The minimum input voltage of the load device is the minimum voltage at which the load device can work normally. When the output voltage of the battery is lower than the threshold voltage calculated from the minimum input voltage, it means that the load device can no longer work normally.

[0139] S4041. In a fixed application scenario, the electronic device obtains multiple threshold voltages according to the input voltage, input current, internal impedance of the battery, wiring impedance, and DC impedance at a fixed temperature of the load device tested multiple times.

[0140] For example, in a fixed application scenario, the electronic device can obtain multiple threshold voltages according to the input voltage and input current of the load device tested multiple times, the internal impedance of the battery, the wiring impedance, and the DC impedance of the battery at a fixed temperature.

[0141] Exemplarily, threshold voltage=input voltage+input current*(internal impedance+trace impedance+DC impedance).

[0142] S4042. Use the maximum value among the multiple threshold voltages as the threshold voltage.

[0143] Exemplarily, the multiple threshold voltages are multiple different measurement results. In order to completely ensure that the output voltage of the battery can be increased when the output voltage of the battery is low, the maximum value of the multiple threshold voltages can be used as the threshold voltage. Once the output voltage of the battery is lower than the maximum threshold voltage, the output voltage of the battery is increased, thereby effectively ensuring that the output voltage of the battery can support the operation of the load device.

[0144] It should be noted that the threshold voltage of the battery under different application scenarios and different temperatures can be stored in a storage device or a system on chip, etc., and the output voltage of the battery can be directly compared with the threshold voltage when the load device of the electronic device is working later.

[0145] S4051. The electronic device determines whether the output voltage of the battery is less than a threshold voltage.

[0146] Exemplarily, the output voltage of the battery is monitored in real time, and the output voltage of the battery is compared with a threshold voltage corresponding to the application scenario and temperature.

[0147] S4052: When the output voltage of the battery is not less than the threshold voltage, directly output the output voltage of the battery.

[0148] Exemplarily, when the output voltage of the battery is not less than the threshold voltage, it indicates that the output voltage of the battery can meet the demand of the load device. At this time, the output voltage of the battery is directly output without other processing, so that the output voltage of the battery directly supplies power to the load device.

[0149] S4053: When the output voltage of the battery is less than the threshold voltage, the output voltage of the battery is boosted.

[0150] Exemplarily, when the output voltage of the battery is less than the threshold voltage, the output voltage of the battery is boosted so that the electric energy of the low-voltage section of the battery is effectively utilized to support the normal operation of the load devices in the electronic device.

[0151] Combine the following Figure 6 to Figure 7 , and then the circuit solution for increasing the battery output voltage provided in the embodiment of the present application is introduced in detail.

[0152] Figure 6 Schematic diagram of a circuit for increasing the output voltage of a battery provided in an embodiment of the present application. Figure 6 As shown, illustratively, in an embodiment of the present application, a circuit 50 for increasing the output voltage of a battery is provided. It should be noted that the battery includes a battery cell and a battery connector. The battery cell is used to store electrical energy, and the battery connector is used to transmit the electrical energy stored in the battery to a load device inside an electronic device.

[0153] Exemplarily, the circuit 50 for increasing the battery output voltage includes a control module 501, a voltage acquisition module 502, a bypass module 503, and a boost module 504. A first end of the voltage acquisition module 502 is connected to a first end of the control module 501. The voltage acquisition module 502 is used to acquire the output voltage of the battery in real time and send it to the control module 501, so as to facilitate determining whether the output voltage of the battery can meet the input voltage requirement of the load device.

[0154] Optionally, the voltage acquisition module 502 may also acquire the output current of the battery.

[0155] In the embodiment of the present application, the control module 501 is used to determine the size between the output voltage of the battery and the threshold voltage. When the output voltage of the battery is not less than the threshold voltage, the bypass module 503 is controlled to conduct the battery cell and the battery connector, so that the bypass module 503 bypasses the battery cell voltage, so that the battery cell voltage is directly sent to the load device through the bypass module 503 and the battery connector. When the output voltage of the battery is less than the threshold voltage, the boost module 504 is controlled to conduct the battery cell and the battery connector, so that the boost module 504 boosts the battery cell voltage, so that the boosted battery cell voltage is sent to the battery connector through the battery connector.

[0156] The first end of the bypass module 503 is connected to the second end of the control module 501, the second end of the bypass module 503 is connected to the battery cell, and the third end of the bypass module 503 is connected to the battery connector. The bypass module 503 is used to bypass the output voltage of the battery.

[0157] In the embodiment of the present application, when the control module 501 controls the bypass module 503 to be turned on, it proves that the output voltage of the battery can fully meet the needs of the load device. Therefore, the bypass module 503 does not need to process the battery cell voltage again, and the battery cell power can be directly sent to the load device through the battery connector.

[0158] The first end of the boost module 504 is connected to the third end of the control module 501, the second end of the boost module 504 is connected to the battery cell, and the third end of the boost module 504 is connected to the battery connector. The boost module 504 is used to boost the output voltage of the battery.

[0159] In an embodiment of the present application, when the control module 501 controls the boost module 504 to turn on, it proves that the output voltage of the battery can no longer meet the needs of the load device. Therefore, the boost module 504 is required to boost the battery cell voltage and send it to the load device through the battery connector, so that the output voltage of the battery can meet the needs of the load device.

[0160] Figure 7 FIG. 1 is a circuit diagram of a circuit for increasing the output voltage of a battery provided in an embodiment of the present application. Figure 7 As shown, exemplarily, in an embodiment of the present application, a circuit 50 for increasing the output voltage of a battery is provided. The circuit 50 for increasing the output voltage of a battery includes a control module 501, a voltage acquisition module 502, a bypass module 503, and a boost module 504. The control module 501 is connected to the voltage acquisition module 502, the bypass module 503, and the boost module 504, respectively.

[0161] The voltage acquisition module 502 is used to collect the output voltage of the battery in real time and send it to the control module 501, so as to facilitate the determination of whether the output voltage of the battery can meet the input voltage requirement of the load device. The control module 501 is used to determine the size between the output voltage of the battery and the threshold voltage. When the output voltage of the battery is not less than the threshold voltage, the bypass module 503 is controlled to conduct the battery cell and the battery connector, so that the bypass module 503 bypasses the battery cell voltage, so that the battery cell voltage is directly sent to the load device through the bypass module 503 and the battery connector. When the output voltage of the battery is less than the threshold voltage, the boost module 504 is controlled to conduct the battery cell and the battery connector, so that the boost module 504 boosts the battery cell voltage, so that the boosted battery cell voltage is sent to the battery connector through the battery connector.

[0162] Exemplarily, the bypass module 503 includes a first MOS transistor Q1 , a gate of the first MOS transistor Q1 is connected to the control module 501 , a drain of the first MOS transistor Q1 is connected to the battery cell, and a source of the first MOS transistor Q1 is connected to the battery connector.

[0163] In the embodiment of the present application, when the output voltage of the battery is not less than the threshold voltage and the bypass module 503 is turned on by the control module 501, it means that the first MOS tube Q1 is turned on and the battery cell power can only be sent to the load device through the first MOS tube Q1 and the battery connector.

[0164] In one embodiment, illustratively, the boost module 504 includes a first inductor L1 and a second MOS transistor Q2. The first end of the first inductor L1 is connected to the battery core, the second end of the first inductor L1 is connected to the drain of the second MOS transistor Q2, the gate of the second MOS transistor Q2 is connected to the control module 501, and the source of the second MOS transistor Q2 is connected to the battery connector.

[0165] In the embodiment of the present application, when the output voltage of the battery is less than the threshold voltage and the boost module 504 is turned on by the control module 501, it means that the first inductor L1 and the second MOS tube Q2 are turned on, so that the battery cell energy and the energy stored in the first inductor L1 are sent to the load device through the battery connector, thereby increasing the output voltage of the battery.

[0166] In another embodiment, illustratively, the boost module 504 includes a first inductor L1, a second MOS transistor Q2, and a third MOS transistor Q3. The first end of the first inductor L1 is connected to the battery core, the second end of the first inductor L1 is connected to the drain of the second MOS transistor Q2, the gate of the second MOS transistor Q2 is connected to the control module 501, and the source of the second MOS transistor Q2 is connected to the battery connector. The gate of the third MOS transistor Q3 is connected to the control module 501, the drain of the third MOS transistor Q3 is connected to the drain of the second MOS transistor Q2, and the source of the third MOS transistor Q3 is grounded.

[0167] In the embodiment of the present application, when the output voltage of the battery is less than the threshold voltage, the boost module 504 is turned on by the control module 501, indicating that the first inductor L1, the second MOS tube Q2, and the third MOS tube Q3 are turned on, so that the electric energy of the battery cell and the electric energy stored in the first inductor L1 are sent to the load device through the battery connector, which plays a role in increasing the output voltage of the battery. At the same time, the third MOS tube Q3 can protect the boost module 504, thereby preventing the boost module 504 from being burned due to excessive voltage, or even damaging other electronic devices.

[0168] Combine the following Figures 8 to 10 , and then the battery solution provided in the embodiment of the present application is introduced in detail.

[0169] Figure 8 Schematic diagram of the structure of a battery provided in an embodiment of the present application. Figure 8As shown, exemplarily, in an embodiment of the present application, a schematic diagram of the structure of a battery is provided. The battery 142 includes a battery cell 601, a battery connector 602, and a circuit 50 for increasing the battery output voltage.

[0170] Exemplarily, the first end of the circuit 50 for boosting the battery output voltage is connected to the battery cell 601, and the second end of the circuit 50 for boosting the battery output voltage is connected to the battery connector 602. The battery cell 601 is used to store electrical energy. The battery connector 602 is used to connect the battery cell 601 to a plurality of load devices. The circuit 50 for boosting the battery output voltage is used to directly output the electrical energy of the battery cell 601 when the output voltage of the battery is not less than a threshold voltage, and to supply power to the load device through the battery connector 602. When the output voltage of the battery is less than the threshold voltage, the output voltage of the battery is boosted so that the boosted output voltage supplies power to the load device through the battery connector 602. This effectively utilizes the electrical energy of the low-voltage section of the battery, especially lithium-ion batteries containing silicon-carbon negative electrode materials, and avoids the situation where the battery capacity in the low-voltage section of the battery is high but cannot provide input voltage to the load device.

[0171] It should be noted that the battery 142 also includes an anti-counterfeiting module, which identifies the anti-counterfeiting information of the battery through the I2C bus, thereby distinguishing the battery 142 inside each electronic device. The battery 142 also includes a dual protection function to prevent the battery 142 from overvoltage, overcurrent, short circuit, overheating, etc. during use.

[0172] Fig. 9 1 is a circuit diagram of a battery provided in an embodiment of the present application. Fig. 9 As shown, exemplarily, in an embodiment of the present application, a schematic diagram of the structure of a battery is provided. The battery 142 includes a battery cell 601, a battery connector 602, and a circuit 50 for increasing the battery output voltage.

[0173] Exemplarily, the first end of the circuit 50 for boosting the battery output voltage is connected to the battery cell 601, and the second end of the circuit 50 for boosting the battery output voltage is connected to the battery connector 602. The battery cell 601 is used to store electrical energy. The battery connector 602 is used to connect the battery cell 601 to a plurality of load devices. The circuit 50 for boosting the battery output voltage is used to directly output the electrical energy of the battery cell 601 when the output voltage of the battery is not less than a threshold voltage, and to supply power to the load device through the battery connector 602. When the output voltage of the battery is less than the threshold voltage, the output voltage of the battery is boosted so that the boosted output voltage supplies power to the load device through the battery connector 602. This effectively utilizes the electrical energy of the low-voltage section of the battery, especially lithium-ion batteries containing silicon-carbon negative electrode materials, and avoids the situation where the battery capacity in the low-voltage section of the battery is high but cannot provide input voltage to the load device.

[0174] It should be noted that the battery 142 also includes an anti-counterfeiting module, which identifies the anti-counterfeiting information of the battery through the inter-integrated circuit (I2C) bus, thereby distinguishing the battery 142 inside each electronic device. The battery 142 also includes a dual protection function to prevent the battery 142 from overvoltage, overcurrent, short circuit, overheating, etc. during use.

[0175] It should be understood that the battery connector 602 includes multiple pins, such as the P+ and P- pins connected to the positive and negative electrodes of the battery respectively, the B+ pin is used to collect the positive electrode voltage of the battery cell, the TH pin is used to collect the temperature through the negative temperature coefficient (NTC), and the serial clock (SCL) pin and the serial data (SDA) pin are I2C communication pins of the circuit 50 for increasing the battery output voltage.

[0176] For example, in one embodiment, the battery 142 may further include a thermistor NTC, a first end of the thermistor NTC is connected to the battery connector 602 , and a second end of the thermistor NTC is grounded.

[0177] In the embodiment of the present application, the thermistor NTC is used to collect the internal temperature of the battery 142 .

[0178] Exemplarily, in another embodiment, the battery 142 further includes a protection chip IC, a precision resistor R1, a fourth MOS tube Q4, and a fifth MOS tube Q5. The first end of the precision resistor R1 is respectively connected to the battery cell 601, the first end of the protection chip IC, and the third end of the circuit 50 for increasing the battery output voltage. The second end of the precision resistor R1 is respectively connected to the drain of the fourth MOS tube Q4, the second end of the protection chip IC, and the fourth end of the circuit 50 for increasing the battery output voltage. The gate of the fourth MOS tube Q4 is connected to the third end of the protection chip IC. The source of the fourth MOS tube Q4 is connected to the source of the fifth MOS tube Q5, the gate of the fifth MOS tube Q5 is connected to the fourth end of the protection chip IC, and the drain of the fifth MOS tube is connected to the battery connector 602 and the fifth end of the protection chip IC.

[0179] In the embodiment of the present application, the precision resistor R1 is used to detect the current of the battery cell 601. The battery 142 is provided with a dual protection mechanism. The first protection mechanism is a protection chip IC + dual MOS tube. Among them, the dual MOS tube is composed of a fourth MOS tube Q4 and a fifth MOS tube Q5. In actual work, when the current of the battery cell 601 does not exceed the threshold current, the protection chip IC controls the fourth MOS tube Q4 and the fifth MOS tube Q5 to be turned on, so that the electric energy of the battery cell 601 is normally sent to the load device through the circuit 50 for increasing the battery output voltage and the battery connector 602. When the current of the battery cell 601 exceeds the threshold current, the protection chip IC controls the fourth MOS tube Q4 and the fifth MOS tube Q5 to be disconnected, thereby protecting the internal electronic devices of the battery 142. The second protection mechanism is a circuit 50 for increasing the battery output voltage. The circuit 50 for increasing the battery output voltage can detect the voltage and current of the battery cell 601 in real time. When the voltage or current exceeds the set threshold, the circuit 50 for increasing the battery output voltage will be controlled to be disconnected.

[0180] It should be noted that, in actual operation, when the battery 142 is in the charging process, the current flows in from the P+ pin, passes through the bypass module 503 (i.e., the first MOS tube Q1) in the circuit 50 for increasing the battery output voltage, and reaches the positive electrode of the battery cell 601. Then, the current flows back to the P- pin from the negative electrode of the battery cell 601 through the precision resistor R1 and the back-to-back dual MOS tubes (Q4+Q5).

[0181] When the battery 142 is in the discharge process, the current fuel gauge detects the voltage of the battery cell 601 through the B+ pin and the P- pin and reports it to the system on chip / chip. When the voltage of the battery cell 601 is higher than the threshold voltage VSET, the system on chip controls the bypass module 503 inside the circuit 50 for boosting the battery output voltage to be turned on through the I2C bus. In other words, the system on chip controls the circuit 50 for boosting the battery output voltage to be in bypass mode. When the voltage of the battery cell 601 is lower than the threshold voltage VSET, the system on chip controls the boost module 504 inside the circuit 50 for boosting the battery output voltage to be turned on through the I2C bus. In other words, the system on chip controls the circuit 50 for boosting the battery output voltage to be in boost mode.

[0182] Fig.10 This is a voltage variation diagram of a circuit for increasing the battery output voltage provided by an embodiment of the present application. Fig.10 As shown, in one embodiment provided in the present application, a discharge process of the battery 142 in a certain application scenario is provided.

[0183] For example, the electronic device obtains the threshold voltage of the battery as 3.2V based on the internal impedance, wiring impedance, DC impedance, input voltage and input current of the load device of the battery in a certain application scenario. The internal discharge curve of the battery is the discharge curve of the battery cell 601 single-cell bypass discharge to a termination voltage of 2.75V. The battery output voltage curve is the voltage change curve at the battery connector 602.

[0184] When the voltage of the battery cell 601 is higher than the threshold voltage, the circuit 50 for increasing the battery output voltage controls the bypass module 503 to be turned on, that is, the circuit 50 for increasing the battery output voltage is in bypass mode, and the voltage of the battery cell 601 is normally output and decreased. When the voltage of the battery cell 601 is lower than the threshold voltage, the circuit 50 for increasing the battery output voltage controls the boost module 504 to be turned on, that is, the circuit 50 for increasing the battery output voltage is in boost mode, so that the output voltage of the battery cell 601 is stabilized at about 3.2V. In this way, the electric energy of the low-voltage section of the battery can be effectively utilized, so that the input voltage of the load device is always in the normal voltage range in this application scenario, so as to be used by the load device, and to avoid damage to the load device or abnormal shutdown of the system. At the same time, it can also avoid the situation where the battery capacity of the low-voltage section of the battery is high, but the input voltage cannot be provided to the load device. In particular, for lithium-ion batteries containing silicon-carbon negative electrode materials, the capacity utilization rate of the low-voltage section battery of the lithium-ion battery can be effectively improved.

[0185] The following is a detailed introduction to the electronic device provided in the embodiments of the present application.

[0186] Fig.11 FIG. 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Fig.11 As shown, in one embodiment provided in the present application, the electronic device 10 includes a plurality of load devices 701 and a battery 142, and the battery 142 is respectively connected to the plurality of load devices 701 to supply power to the plurality of load devices 701. The plurality of load devices 701 are respectively used to implement different functions.

[0187] In an embodiment of the present application, when the output voltage of the battery 142 is not less than the threshold voltage, the battery 142 directly supplies the cell power to the load device 701. When the output voltage of the battery 142 is less than the threshold voltage, the battery 142 boosts the cell power so that the boosted output voltage can meet the needs of the load device 701, avoiding damage to the load device 701 or abnormal shutdown of the system. At the same time, the battery 142 can also avoid the situation where the battery capacity of the low-voltage section of the battery is high but cannot provide input voltage to the load device 701. In particular, for lithium-ion batteries containing silicon-carbon negative electrode materials, the capacity utilization rate of the low-voltage section battery of the lithium-ion battery can be effectively improved.

[0188] It should be understood that the above is only an example of the structure of the electronic device 10, and the electronic device 10 may also include other subsystems or devices, which can be configured and modified as needed, and the embodiments of the present application do not impose any limitations on this.

[0189] Fig.12 A schematic diagram of the structure of an electronic device provided in yet another embodiment of the present application. Fig.12 The dotted line in the figure indicates that the unit or the module is optional; the electronic device 10 can be used to implement the function test method of the anti-flicker sensor described in the above method embodiment. For example, the electronic device 10 can be an electronic device with a camera and video recording function integrated with an anti-flicker sensor. For example, a smart phone, a smart tablet, a smart computer, a smart security device, etc.

[0190] The electronic device 10 includes one or more processors 110, which can support the electronic device 10 to implement the control method in the method embodiment. The processor 110 can be a general-purpose processor or a special-purpose processor. For example, the processor 110 can be a central processing unit (CPU), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, such as discrete gates, transistor logic devices, or discrete hardware components.

[0191] Optionally, the processor 110 may be used to control the electronic device 10, execute software programs, and process data of the software programs. The electronic device 10 may also include a communication unit 905 to implement input (reception) and output (transmission) of signals.

[0192] For example, the electronic device 10 may be a chip, the communication unit 905 may be an input and / or output circuit of the chip, or the communication unit 905 may be a communication interface of the chip, and the chip may be a component of the electronic device or other electronic devices.

[0193] For another example, the electronic device 10 may be an electronic device, and the communication unit 905 may be a transceiver of the electronic device 10, or the communication unit 905 may include one or more memories 902 on which a program 904 is stored, and the program 904 may be executed by the processor 110 to generate instructions 903, so that the processor 110 executes the functional testing method of the anti-flicker sensor described in the above method embodiment according to the instructions 903.

[0194] Optionally, data may also be stored in the memory 902 .

[0195] Optionally, the processor 110 may also read data stored in the memory 902 . The data may be stored at the same storage address as the program 904 , or may be stored at a different storage address from the program 904 .

[0196] Optionally, the processor 110 and the memory 902 may be provided separately or integrated together, for example, integrated on a system on chip (SOC) of the electronic device.

[0197] Exemplarily, the memory 902 can be used to store the related program 904 of the functional testing method of the anti-flicker sensor provided in the embodiment of the present application, and the processor 110 can be used to call the related program 904 of the functional testing method of the anti-flicker sensor stored in the memory 902 when executing the functional testing method of the anti-flicker sensor, so as to execute the functional testing method of the anti-flicker sensor in the embodiment of the present application.

[0198] Optionally, the present application further provides a computer program product, which, when executed by the processor 110, implements the functional testing method of the anti-flicker sensor in any method embodiment of the present application.

[0199] For example, the computer program product may be stored in the memory 902 , such as a program 904 , which is converted into an executable target file that can be executed by the processor 110 after preprocessing, compiling, assembling, and linking.

[0200] Optionally, the present application also provides a chip system, which is applied to the electronic device 10, and the chip system includes one or more processors, and the one or more processors are used to call computer instructions to enable the electronic device 10 to execute the functional testing method of the anti-flicker sensor.

[0201] Optionally, the present application further provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a computer, the function test method of the anti-flicker sensor described in any method embodiment of the present application is implemented. The computer program can be a high-level language program or an executable target program.

[0202] For example, the computer-readable storage medium is, for example, a memory 902. The memory 902 may be a volatile memory or a non-volatile memory, or the memory 902 may include both a volatile memory and a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0203] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0204] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0205] The beneficial effects that can be achieved by the electronic device provided in the above-mentioned embodiment of the present application can refer to the beneficial effects corresponding to the modules provided above, which will not be repeated here.

[0206] It should be understood that the above is only to help those skilled in the art to better understand the embodiments of the present application, rather than to limit the scope of the embodiments of the present application. According to the above examples given, those skilled in the art can obviously make various equivalent modifications or changes. For example, some steps in each embodiment of the above detection method may be unnecessary, or some steps may be newly added. Or a combination of any two or any multiple embodiments of the above. Such modifications, changes or combined solutions also fall within the scope of the embodiments of the present application. In addition, the coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0207] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0208] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0209] It should also be understood that the above description of the embodiments of the present application focuses on emphasizing the differences between the various embodiments. The same or similar points that are not mentioned can be referenced to each other. For the sake of brevity, they will not be repeated here.

[0210] It should also be understood that in the various embodiments of the present application, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0211] It should also be understood that in the embodiments of the present application, "pre-setting" and "pre-definition" can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including an electronic device), and the present application does not limit its specific implementation method.

[0212] It should also be understood that the division of the methods, situations, categories and embodiments in the embodiments of the present application is only for the convenience of description and should not constitute a special limitation. The features of various methods, categories, situations and embodiments can be combined without contradiction.

[0213] It should also be understood that in the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0214] Finally, it should be noted that the above is only a specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims. In short, the above is only a preferred embodiment of the technical solution of the present application, and is not used to limit the protection scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for increasing the output voltage of a battery, characterized in that: Applied to electronic equipment, the electronic equipment comprises a plurality of load devices and a battery, the battery supplies power to the plurality of load devices; The method for increasing the battery output voltage comprises: Obtaining the internal impedance of the battery and the wiring impedance between the output end of the battery and the plurality of load devices; Obtaining the DC impedance of the battery; Obtaining an input voltage and an input current of the load device; A threshold voltage is obtained according to the input voltage of the load device, the input current, the internal impedance of the battery, the wiring impedance, and the DC impedance; the threshold voltage=input voltage+input current*(internal impedance+wiring impedance+DC impedance); When the output voltage of the battery is less than the threshold voltage, the output voltage of the battery is boosted; and the threshold voltage is obtained according to the input voltage of the load device, the input current, the internal impedance of the battery, the wiring impedance, and the DC impedance, including: In a fixed application scenario, a plurality of threshold voltages are obtained according to the input voltage, the input current, the internal impedance of the battery, the wiring impedance, and the DC impedance at a fixed temperature of the load device tested multiple times; The maximum value of the multiple threshold voltages is used as the threshold voltage in the fixed application scenario and fixed temperature.

2. The method for increasing the battery output voltage as claimed in claim 1, characterized in that: The obtaining of the DC impedance of the battery includes: A plurality of the DC impedances of the battery at a plurality of temperatures are obtained.

3. The method for increasing the battery output voltage as claimed in claim 1, characterized in that: The input voltage includes a minimum input voltage.

4. The method for increasing the battery output voltage as claimed in claim 1, characterized in that: The obtaining of the input voltage and input current of the load device comprises: The input voltage and input current of the load device in multiple application scenarios are obtained.

5. The method for increasing the battery output voltage as claimed in claim 1, characterized in that: The threshold voltage includes multiple ones, and each threshold voltage corresponds to a temperature and / or an application scenario.

6. The method for increasing the output voltage of a battery according to any one of claims 1 to 5, characterized in that: The obtaining of the DC impedance of the battery includes: A plurality of DC impedances of the battery under a plurality of states of charge are obtained.

7. The method for increasing the output voltage of a battery according to any one of claims 1 to 5, characterized in that: The battery includes a battery protection board, and the internal impedance of the battery includes the impedance of the battery protection board.

8. The method for increasing the output voltage of a battery according to any one of claims 1 to 5, characterized in that: The method further includes outputting the output voltage of the battery when the output voltage of the battery is not less than the threshold voltage.

9. A circuit for increasing the output voltage of a battery, characterized in that: Based on the method for increasing the output voltage of a battery according to any one of claims 1 to 8, the battery comprises a battery cell and a battery connector; the circuit for increasing the output voltage of the battery comprises a control module, a voltage acquisition module, a bypass module, and a boost module; The first end of the voltage acquisition module is connected to the first end of the control module, and the voltage acquisition module is used to acquire the output voltage of the battery; The first end of the bypass module is connected to the second end of the control module, the second end of the bypass module is connected to the battery cell, and the third end of the bypass module is connected to the battery connector; the bypass module is used to bypass the output voltage of the battery; The first end of the boost module is connected to the third end of the control module, the second end of the boost module is connected to the battery cell, and the third end of the boost module is connected to the battery connector; the boost module is used to boost the output voltage of the battery; The control module is used to control the bypass module to conduct the battery cell and the battery connector when the output voltage of the battery is not less than the threshold voltage; and to control the boost module to conduct the battery cell and the battery connector when the output voltage of the battery is less than the threshold voltage.

10. The circuit for increasing the battery output voltage as claimed in claim 9, characterized in that: The bypass module includes a first MOS tube, a gate of the first MOS tube is connected to the control module, a drain of the first MOS tube is connected to the battery cell, and a source of the first MOS tube is connected to the battery connector.

11. The circuit for increasing the battery output voltage as claimed in claim 9, characterized in that: The boost module includes a first inductor and a second MOS tube, wherein a first end of the first inductor is connected to the battery core, a second end of the first inductor is connected to a drain of the second MOS tube, a gate of the second MOS tube is connected to the control module, and a source of the second MOS tube is connected to the battery connector.

12. The circuit for increasing the battery output voltage as claimed in claim 11, characterized in that: The boost module further includes a third MOS tube, a gate of the third MOS tube is connected to the control module, a drain of the third MOS tube is connected to the drain of the second MOS tube, and a source of the third MOS tube is grounded.

13. A battery, characterized in that: A battery cell, a battery connector, and a circuit for increasing the battery output voltage as claimed in any one of claims 9 to 12; A first end of the circuit for increasing the battery output voltage is connected to the battery cell, and a second end of the circuit for increasing the battery output voltage is connected to the battery connector.

14. The battery according to claim 13, characterized in that The battery further comprises a thermistor, a first end of the thermistor is connected to the battery connector, and a second end of the thermistor is grounded.

15. The battery according to claim 13, characterized in that The battery also includes a protection chip, a precision resistor, a fourth MOS tube and a fifth MOS tube; The first end of the precision resistor is respectively connected to the battery cell, the first end of the protection chip and the third end of the circuit for increasing the battery output voltage, the second end of the precision resistor is respectively connected to the drain of the fourth MOS tube, the second end of the protection chip and the fourth end of the circuit for increasing the battery output voltage, the gate of the fourth MOS tube is connected to the third end of the protection chip, the source of the fourth MOS tube is connected to the source of the fifth MOS tube, the gate of the fifth MOS tube is connected to the fourth end of the protection chip, and the drain of the fifth MOS tube is connected to the battery connector and the fifth end of the protection chip.

16. An electronic device, characterized in that: The electronic device comprises a plurality of load devices and a battery as claimed in any one of claims 13 to 15, wherein the battery is respectively connected to the plurality of load devices to supply power to the plurality of load devices; The multiple load devices are used to realize different functions respectively.

17. An electronic device, characterized in that: The electronic device includes: one or more processors, and a memory; The memory is coupled to the one or more processors, and the memory is used to store computer program codes, wherein the computer program codes include computer instructions, and the one or more processors call the computer instructions to enable the electronic device to execute the method according to any one of claims 1 to 8.

18. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes instructions, and when the instructions are executed on an electronic device, the electronic device executes the method according to any one of claims 1 to 8.

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