Electronic device, method for manufacturing electronic device, and method for changing battery

Abstract

The electronic device includes: a replaceable battery; and a charging device that charges the battery. The charging device includes: a nonvolatile memory; a control circuit that performs charge control in accordance with charge configuration information selected from a plurality of pieces of charge configuration information corresponding to the plurality of types of batteries stored in the nonvolatile memory on the basis of selection information; and a charging circuit that charges the battery on the basis of the charging control.

Description

Technical Field

[0001] This invention relates to electronic devices, methods for manufacturing electronic devices, and methods for replacing batteries. Background Technology

[0002] Patent Document 1 discloses a charging station for charging an autonomous robot equipped with a battery. When the autonomous robot docks, the charging station receives an identifier indicating the type of battery from the autonomous robot and charges the autonomous robot according to the charging configuration information.

[0003] Patent Document 1: Japanese Patent Publication No. 2020-534781

[0004] In electronic devices, different battery models are sometimes used during manufacturing and repairs such as battery replacement. That is, in electronic devices equipped with replaceable batteries, there are situations where the battery model used changes during manufacturing or repair, but no appropriate methods have been proposed to deal with such situations. Summary of the Invention

[0005] One aspect of this disclosure relates to an electronic device comprising: a replaceable battery; and a charging device for charging the battery, the charging device comprising: a non-volatile memory; a control circuit for controlling charging based on charging configuration information selected from multiple charging configuration information corresponding to multiple battery models stored in the non-volatile memory based on selection information; and a charging circuit for charging the battery based on the charging control.

[0006] Another aspect of this disclosure relates to a method of manufacturing an electronic device including a replaceable battery and a charging device for charging the battery, wherein the charging device includes: a non-volatile memory; a control circuit that performs charging control according to charging configuration information, the charging configuration information being selected from multiple charging configuration information corresponding to multiple battery models stored in the non-volatile memory based on selection information; and a charging circuit that charges the battery based on the charging control, wherein, when a first type of battery is assembled into the electronic device, the selection information for selecting a first charging configuration information corresponding to the first type of battery is set in the charging device, and when a second type of battery is assembled into the electronic device, the selection information for selecting a second charging configuration information corresponding to the second type of battery is set in the charging device.

[0007] Furthermore, another aspect of this disclosure relates to a battery replacement method for an electronic device comprising a replaceable battery and a charging device for charging the battery, wherein the charging device comprises: a non-volatile memory; a control circuit that performs charging control according to charging configuration information, the charging configuration information being selected from multiple charging configuration information corresponding to multiple battery models stored in the non-volatile memory based on selection information; and a charging circuit that charges the battery through the charging control of the control circuit, wherein, when the battery of the electronic device is replaced from a battery of model 1 to a battery of model 2, the selection information for selecting the second charging configuration information corresponding to the second battery model is set in the charging device instead of the selection information for selecting the first charging configuration information corresponding to the first battery model. Attached Figure Description

[0008] Figure 1 This is an example of the structure of the electronic device described in this embodiment.

[0009] Figure 2 This is a detailed structural example of an electronic device.

[0010] Figure 3 This is an example of the structure of a charging circuit.

[0011] Figure 4 This is an explanatory diagram of a method for setting selection information using non-volatile memory.

[0012] Figure 5 This is an explanatory diagram of the setting method based on the selection information of the terminal settings.

[0013] Figure 6 This is an example of charging profile and discharging profile information.

[0014] Figure 7 This is an illustration of the charging control process for standard charging.

[0015] Figure 8 This is an illustration of the charging control process for fast charging.

[0016] Figure 9 This is an illustration of the charging control process for rapid charging.

[0017] Figure 10 This is an explanatory diagram of the temperature management settings for constant current charging.

[0018] Figure 11 This is an explanatory diagram of the temperature management settings for constant voltage charging.

[0019] Figure 12This is an explanatory diagram of the management settings based on charging history.

[0020] Figure 13 This is a flowchart illustrating the operation of this embodiment.

[0021] Figure 14 This is a flowchart illustrating the manufacturing method of the electronic device according to this embodiment.

[0022] Figure 15 This is a flowchart illustrating the battery replacement method of the electronic device according to this embodiment.

[0023] Label Explanation

[0024] 2: Electronic equipment; 10: Battery; 12: Power supply device; 14: Power transmission device; 20: Charging device; 30: Charging circuit; 32: Current source circuit; 34: Reverse current prevention circuit; 40: Voltage measurement circuit; 42: A / D conversion circuit; 50: Control circuit; 52: Register section; 60: Non-volatile memory; 70: Power receiving circuit; 72: Rectifier circuit; 80: Power supply circuit; 90: Temperature measurement section; 92: Interface circuit; CCF: Charging control process setting information; CPF1, CPF2: Charging configuration Information; DPF1, DPF2: Discharge configuration information; ICH: Charging current; IST, IFA, IRP: Target current value; OPA: Amplifier circuit; RB, RCS, RD, RP, RS: Resistors; SDB: Control signal; TA, TB1, TB2: Transistors; TBAT, TCK, TSLB, TTM, TVOUT: Terminals; VBAT: Battery voltage; VCH: Charging voltage; VCV: Constant voltage; VOC: Voltage threshold for overcharge determination; VDE: Voltage threshold for discharge stop determination. Detailed Implementation

[0025] The embodiments will now be described. Furthermore, the embodiments described below are not intended to unduly limit the scope of this invention. Also, not all structures described in these embodiments are necessarily essential structural elements.

[0026] 1. Electronic equipment

[0027] Figure 1 This is an example of the structure of the electronic device 2 according to this embodiment. The electronic device 2 includes a charging device 20 and a battery 10. The battery 10 is, for example, a replaceable battery. For example, the battery 10 can be replaced during the manufacture of the electronic device 2 or during repairs such as battery replacement. The charging device 20 charges the battery 10 and includes a charging circuit 30, a control circuit 50, and a non-volatile memory 60. In addition, the electronic device 2 and the charging device 20 are not limited to... Figure 1The structure allows for various transformations, such as omitting some structural elements or adding other structural elements.

[0028] Electronic device 2 is, for example, a hearing aid, an audio-visual headset, or a wearable device. The headset is, for example, referred to as a wireless headset. Furthermore, as electronic device 2, various devices can be envisioned, such as head-mounted displays, smartphones, mobile phones, and other portable communication terminals, watches, biometric measurement devices, shavers, electric toothbrushes, wrist computers, handheld terminals, or in-vehicle systems in automobiles.

[0029] The charging device 20 is a device for charging the battery 10, and can be implemented, for example, by a circuit device called an IC. Alternatively, the charging device 20 can be configured by separately providing a charging circuit 30, an IC implementing a control circuit 50, and an IC implementing a non-volatile memory 60. The battery 10, which is to be charged, is, for example, a secondary battery, such as a lithium-ion secondary battery, a nickel-metal hydride battery, or a nickel-cadmium battery. Alternatively, the battery 10 can also be implemented using a supercapacitor. The battery 10 is connected to the terminal TBAT of the charging device 20. The terminal TBAT is implemented, for example, by external connection terminals or pads of the circuit device of the charging device 20. For example, external connection terminals are terminals provided in the package of the circuit device. Furthermore, in the pad area, a metal layer is exposed from a passivation film that serves as an insulating layer, and the exposed metal layer constitutes the pad. In this embodiment, the connection is an electrical connection. An electrical connection is a connection capable of transmitting electrical signals and transmitting information via electrical signals. An electrical connection can also be a connection via passive components, etc.

[0030] Charging circuit 30 charges battery 10. For example, charging circuit 30 charges battery 10 using power received based on charging voltage VCH supplied to node NIN. Charging voltage VCH is the power supply voltage for charging. For example, charging circuit 30 generates charging current ICH based on charging voltage VCH to charge battery 10. Specifically, charging circuit 30 charges battery 10 through constant current charging and CCCV charging. Constant current charging is CC charging. In CCCV charging, charging circuit 30 first performs constant current charging (CC charging) of battery 10, and then switches to constant voltage charging (CV charging) to charge battery 10. For example, when charging battery 10 through constant current charging, it switches from constant current charging to constant voltage charging when battery voltage VBAT reaches a specified voltage. Furthermore, the power received through charging voltage VCH can be obtained through a method described later. Figure 2 The power received by such contactless power transmission can also be received via wired contact power transmission. Furthermore, the charging voltage VCH is, for example, 5V to 4V, and the battery voltage VBAT is, for example, 4.3V to 3.6V.

[0031] The control circuit 50 performs various control and computational processes. For example, the control circuit 50 controls the charging circuit 30, or performs read and write control of the non-volatile memory 60. The control circuit 50 can be implemented, for example, using an ASIC (Application Specific Integrated Circuit) with automatic configuration routing such as a gate array, but it can also be implemented using a processor such as a DSP (Digital Signal Processor), CPU (Central Processing Unit), or microcontroller.

[0032] The non-volatile memory 60 is a memory that can retain its stored contents even without an external power supply. The non-volatile memory 60 can be implemented, for example, using an EEPROM (Electrically Erasable Programmable Read-Only Memory), FAMOS (Floating Gate Avalanche Injection MOS), or an OTP (One Time Programmable) memory. The non-volatile memory 60 can be a memory built into the circuitry implementing the charging device 20, or it can be a memory located external to the circuitry implementing the charging device 20.

[0033] Furthermore, in this embodiment, the control circuit 50 reads charging configuration information from the non-volatile memory 60 and performs charging control. For example, the control circuit 50 performs charging control based on charging configuration information selected from multiple charging configuration information CPF1, CPF2, etc., corresponding to multiple battery models stored in the non-volatile memory 60, based on selection information. Then, the charging circuit 30 charges the battery 10 according to the charging control based on the charging configuration information. For example, the control circuit 50 controls the charging circuit 30 based on the selected charging configuration information, thereby performing charging control of the battery 10.

[0034] Model numbers are used to differentiate products during the production and design stages. They are identified by markings or symbols that categorize products according to their model number. Model numbers can be used to distinguish products from the same manufacturer or from different manufacturers.

[0035] The charging configuration information includes various parameters for charging control of the corresponding battery model. For example, the charging configuration information is set based on battery characteristics such as the charging characteristics of the corresponding battery model. For instance, the charging configuration information for battery model 1 differs from that for battery model 2, and the parameters used for optimal charging control are different. That is, the charging configuration information for battery model 1 is set based on battery characteristics such as the charging characteristics of battery model 1, and the charging configuration information for battery model 2 is set based on battery characteristics such as the charging characteristics of battery model 2. In this embodiment, such charging configuration information CPF1 corresponding to battery model 1 and charging configuration information CPF2 corresponding to battery model 2 are stored in the non-volatile memory 60. CPF1 is the first charging configuration information, and CPF2 is the second charging configuration information. It is also possible to store charging configuration information corresponding to three or more different models in the non-volatile memory 60. Furthermore, when the first type of battery 10 is assembled into the electronic device 2, the control circuit 50 selects the charging configuration information CPF1 corresponding to the first type of battery 10 based on the selection information, reads it from the non-volatile memory 60, and performs charging control based on the read charging configuration information CPF1. Similarly, when the second type of battery 10 is assembled into the electronic device 2, the control circuit 50 selects the charging configuration information CPF2 corresponding to the second type of battery 10 based on the selection information, reads it from the non-volatile memory 60, and performs charging control based on the read charging configuration information CPF2.

[0036] As described above, the electronic device 2 of this embodiment includes a replaceable battery 10 and a charging device 20 for charging the battery 10. Furthermore, the charging device 20 includes a non-volatile memory 60, a control circuit 50, and a charging circuit 30. The control circuit 50 performs charging control based on charging configuration information selected from multiple charging configuration information CPF1, CPF2, etc., corresponding to multiple battery models stored in the non-volatile memory 60, based on selection information. Then, the charging circuit 30 charges the battery 10 based on the charging control of the control circuit 50.

[0037] Thus, when the battery 10 assembled in the electronic device 2 is a first-type battery, the charging configuration information corresponding to the first type is selected from multiple charging configuration information CPF1, CPF2, etc. stored in the non-volatile memory 60 based on selection information. Similarly, when the battery 10 assembled in the electronic device 2 is a second-type battery, the charging configuration information corresponding to the second type is selected from multiple charging configuration information CPF1, CPF2, etc. stored in the non-volatile memory 60 based on selection information. Then, charging control of the battery 10 is performed based on the selected charging configuration information. Therefore, appropriate charging control corresponding to the type of battery 10 assembled in the electronic device 2 can be achieved.

[0038] Figure 2 A detailed structural example of the electronic device 2 of this embodiment is shown. Figure 2 This is a structural example of wireless charging based on receiving power through contactless power transmission to charge the battery 10. Figure 2 In addition to the charging circuit 30, control circuit 50, and non-volatile memory 60, the charging device 20 also includes a voltage measurement circuit 40, a power receiving circuit 70, and a power supply circuit 80. Furthermore, the charging device 20 may include a temperature measurement unit 90 and an interface circuit 92. Moreover, the electronic device 2 and the charging device 20 are not limited to... Figure 2 The structure allows for various transformations, such as omitting some structural elements or adding other structural elements.

[0039] Voltage measurement circuit 40 measures battery voltage VBAT. Battery voltage VBAT is, for example, the voltage of the positive electrode of battery 10. For example, voltage measurement circuit 40 measures battery voltage VBAT at node NB, which is a charging node of battery 10. For example, voltage measurement circuit 40 includes A / D conversion circuit 42. A / D conversion circuit 42 performs A / D conversion of battery voltage VBAT at node NB and outputs the digital data obtained by A / D conversion to control circuit 50.

[0040] The receiving circuit 70 receives power from the power supply device 14 without contact. That is, it receives power wirelessly. For example, a primary coil L1 is provided on the side of the power supply device 14, and a secondary coil L2 is provided on the side of the power receiving device implemented by the charging device 20. The power supply device 14 is provided, for example, in a charging dock, charging case, or the like, for charging the electronic device 2. Then, the power supply driver of the power supply device 14 applies an AC voltage to the primary coil L1, thereby supplying power from the primary coil L1 to the secondary coil L2. The receiving circuit 70 receives power from the power supply device 14. Specifically, the receiving circuit 70 converts the AC induced voltage of the secondary coil L2 into a DC rectified voltage. This conversion is performed by a rectifier circuit 72 provided by the receiving circuit 70. The rectifier circuit 72 can be implemented, for example, by multiple transistors or diodes. The charging circuit 30 charges the battery 10 based on the charging voltage VCH, which is the rectified voltage.

[0041] The non-volatile memory 60 stores multiple charging configuration information CPF1, CPF2... corresponding to multiple battery models and multiple discharging configuration information DPF1, DPF2... corresponding to multiple battery models. In this case, the charging configuration information and discharging configuration information can also be stored as a combined charging and discharging configuration information. In addition, the non-volatile memory 60 can store selection information for selecting the charging configuration information and discharging configuration information corresponding to the model of battery 10 from the multiple charging configuration information CPF1, CPF2... and the multiple discharging configuration information DPF1, DPF2...

[0042] Discharge configuration information contains various parameters for discharge control of a specific battery model. For example, the discharge configuration information is set based on battery characteristics such as the discharge characteristics of the corresponding battery model. For instance, the discharge configuration information for battery model 1 differs from that for battery model 2, as the parameters used for optimal discharge control are different. That is, the discharge configuration information for battery model 1 is set based on battery characteristics such as the discharge characteristics of battery model 1, and the discharge configuration information for battery model 2 is set based on battery characteristics such as the discharge characteristics of battery model 2. Figure 2In this process, discharge configuration information DPF1 corresponding to a first-type battery and discharge configuration information DPF2 corresponding to a second-type battery are stored in a non-volatile memory 60. DPF1 is the first discharge configuration information, and DPF2 is the second discharge configuration information. Alternatively, discharge configuration information corresponding to three or more different models can be stored in the non-volatile memory 60. Furthermore, when the first-type battery 10 is assembled into the electronic device 2, the control circuit 50 selects the discharge configuration information DPF1 corresponding to the first-type battery 10 based on selection information, reads it from the non-volatile memory 60, and performs discharge control based on the read discharge configuration information DPF1. Similarly, when the second-type battery 10 is assembled into the electronic device 2, the control circuit 50 selects the discharge configuration information DPF2 corresponding to the second-type battery 10 based on selection information, reads it from the non-volatile memory 60, and performs discharge control based on the read discharge configuration information DPF2.

[0043] The control circuit 50 includes a register section 52. The register section 52 stores various information. The control circuit 50 operates based on the data and instructions stored in the register section 52. The register section 52 can be implemented, for example, using a flip-flop circuit or a memory such as RAM. The register section 52 stores various information, for example, by loading information read from the non-volatile memory 60. Additionally, the register section 52 stores information input from the outside via the interface circuit 92. Furthermore, a communication circuit (not shown) for communication with the power supply device 14 may be provided in the charging device 20, and the register section 52 stores information received from the power supply device 14 through this communication circuit.

[0044] For example, charging configuration information and discharging configuration information selected from multiple charging configuration information CPF1, CPF2... and multiple discharging configuration information DPF1, DPF2... are loaded from the non-volatile memory 60 into the register section 52. In this case, charge / discharge configuration information that combines charging and discharging configuration information can also be loaded from the non-volatile memory 60 into the register section 52. Then, the control circuit 50 performs charging control and discharging control based on the charging configuration information, discharging configuration information, or charge / discharge configuration information loaded into the register section 52.

[0045] In addition, Figure 2 In this process, the selection information used to select charging configuration information and discharging configuration information is stored in non-volatile memory 60, but the selection information can also be set by setting the terminal TSLB as described later.

[0046] The power supply circuit 80 performs a discharge operation on the battery 10, supplying a power supply voltage based on the discharge operation to the power supply device 12. The power supply device 12 is, for example, a processing device such as a microcomputer installed in the electronic device 2. Specifically, the power supply circuit 80 operates using the battery voltage VBAT of the battery 10 as the power supply voltage. Then, the power supply circuit 80 outputs an output voltage VOUT based on the battery voltage VBAT as the power supply voltage for the power supply device 12. For example, the power supply circuit 80 includes a charge pump circuit or a switching regulator circuit, which performs a charge pump operation or a switching regulation operation to reduce the battery voltage VBAT, and supplies the output voltage VOUT after reducing the battery voltage VBAT to the power supply device 12 via the terminal TVOUT.

[0047] Furthermore, the charging device 20 is equipped with a charging system circuit and a discharging system circuit. The charging system circuit operates based on the received power to charge the battery 10. For example, the charging system circuit is supplied with the received power through the charging voltage VCH and operates based on the charging voltage VCH to charge the battery 10. On the other hand, the discharging system circuit operates based on the battery voltage VBAT of the battery 10. That is, each circuit in the discharging system circuit operates with the battery voltage VBAT as the power supply voltage. In addition, the power supply circuit 80, which is the discharging system circuit, outputs an output voltage VOUT based on the battery voltage VBAT as the power supply voltage for the device 12.

[0048] Furthermore, the control circuit 50 includes control circuits for both the charging and discharging systems. The discharging system control circuit can operate using the battery voltage VBAT as a power supply voltage even when no power is being received from the power receiving circuit 70.

[0049] The temperature measurement unit 90 measures the temperature of the battery 10. The control circuit 50 performs charging and discharging control of the battery 10 based on the temperature measurement results from the temperature measurement unit 90. For example, if the charging device 20 has a terminal TTM for connecting a temperature sensor such as a thermistor, the temperature measurement unit 90 uses the temperature sensor connected to the terminal TTM to measure the temperature of the battery 10. Taking a thermistor as an example, the temperature measurement unit 90 measures the temperature based on the current flowing through the thermistor. Furthermore, the temperature sensor is not limited to a thermistor; various sensors, such as temperature sensors utilizing thermocouples or semiconductor-type temperature sensors, can be used. Additionally, the temperature sensor can be located externally to the circuitry (IC) implementing the charging device 20 or integrated within the circuitry.

[0050] Interface circuit 92 is a circuit used for communication with external processing devices, etc. For example, interface circuit 92 communicates with external processing devices based on a given communication standard. For example, interface circuit 92 performs serial communication such as I2C (Inter-Integrated Circuit) or SPI (Serial Peripheral Interface). For example, by providing a serial clock terminal TCK and a serial data terminal TDA in the charging device 20, serial communication can be achieved using these terminals TCK and TDA.

[0051] As mentioned above, in Figure 2 In this device, the charging device 20 includes a power supply circuit 80 that supplies power to the device 12 based on the battery voltage VBAT of the battery 10. Furthermore, the control circuit 50 controls the power supply to the power supply circuit 80 based on discharge configuration information selected from multiple discharge configuration information DPF1, DPF2, ... corresponding to multiple battery models stored in the non-volatile memory 60, based on selection information. Thus, when power is supplied to the device 12 based on the battery voltage VBAT, discharge control of the battery 10 based on the appropriate discharge configuration information corresponding to the battery model can be achieved, thereby realizing this power supply.

[0052] In this case, the discharge configuration information can include, for example, a voltage threshold for determining whether to stop the discharge. Thus, when power is supplied to the device 12 via the discharge of battery 10, the discharge of battery 10 can be stopped using the voltage threshold for determining whether to stop the discharge. Therefore, for example, over-discharge of battery 10 can be prevented, and appropriate discharge control of battery 10 can be achieved.

[0053] Figure 3 This illustrates the structure of the charging circuit 30. For example... Figure 3 As shown, the charging circuit 30 includes a current source circuit 32, an amplifier circuit OPA, a reverse current prevention circuit 34, a transistor TA, and resistors RCS and RS. The amplifier circuit OPA can also be called an operational amplifier. Furthermore, the charging circuit 30 is not limited to... Figure 3 The structure allows for various transformations, such as omitting some structural elements or adding other structural elements.

[0054] The current source circuit 32 outputs an output current IS based on a reference voltage. The output current IS is a current source current generated by the current source circuit 32. The output current IS is supplied to the non-inverting input terminal of the amplifier circuit OPA and the node NCS on the drain side of the P-type transistor TA. Then, based on the output current IS, a charging current ICH is generated through the amplifier circuit OPA, the transistor TA, the resistor RS, and the RCS.

[0055] The source of transistor TA is connected to node NIN, and its drain is connected to node NCS. A charging voltage VCH is supplied to node NIN. Resistor RCS is placed between nodes NCS and NCSI. Resistor RS is placed between nodes NCS and NCSR. The non-inverting input terminal of amplifier circuit OPA is connected to node NCSI, the inverting input terminal is connected to node NCSR, and the output terminal is connected to the gate of transistor TA. Amplifier circuit OPA is enabled when the enable signal EN is low. Therefore, the charging current ICH = (RCS / RS) × IS is supplied to node NCSR, and the charging current ICH is supplied to node NB, which is the charging node.

[0056] The reverse current prevention circuit 34 includes a P-type transistor TB1, an N-type transistor TB2, and a resistor RB. The source of transistor TB1 is connected to node NB, and its drain is connected to node NCSR. The source of transistor TB2 is connected to ground, and its drain is connected to node NB2, which is the gate of transistor TB1. The resistor RB is positioned between nodes NB and NB2.

[0057] When charging of battery 10 begins, control circuit 50 turns on transistor TB2 via control signal SDB. This also turns on transistor TB1, and charging current ICH flows from node NCSR to node NB, charging battery 10. Then, when charging of battery 10 ends, control circuit 50 turns off transistor TB2 via control signal SDB. This also turns off transistor TB1, and reverse current prevention circuit 34 prevents charge from flowing back from battery 10 to charging circuit 30.

[0058] Figure 4 , Figure 5 This is an explanatory diagram regarding the method for setting selection information. In this embodiment, the selection information is set during the manufacturing of the electronic device 2 or during battery replacement. In this way, based on the selection information set during the manufacturing of the electronic device 2 or during battery replacement, the charging configuration information and discharging configuration information corresponding to the battery 10 assembled in the electronic device 2 can be selected from multiple charging configuration information and multiple discharging configuration information to perform charging and discharging of the battery 10.

[0059] Specifically, in Figure 4In this process, selection information is stored in the non-volatile memory 60. During the manufacturing of the electronic device 2 or when the battery is replaced, the selection information is written to the non-volatile memory 60. For example, when the selection bit, which is the selection information stored in the non-volatile memory 60, is 0, the charging configuration information CPF1 and the discharging configuration information DPF1 for a first-type battery are selected. Conversely, when the selection bit, which is the selection information, is 1, the charging configuration information CPF2 and the discharging configuration information DPF2 for a second-type battery are selected. For example, the non-volatile memory 60 is pre-established with a first storage area for storing the charging configuration information CPF1 and the discharging configuration information DPF1 for the first-type battery and a second storage area for storing the charging configuration information CPF2 and the discharging configuration information DPF2 for the second-type battery. Furthermore, when the selection bit, which is the selection information, is 0, the control circuit 50 accesses the address of the first storage area and reads the charging configuration information CPF1 and the discharging configuration information DPF1. Furthermore, when the selection bit, which serves as selection information, is 1, the control circuit 50 accesses the address of the second storage area and reads the charging configuration information CPF2 and the discharging configuration information DPF2. Thus, by storing the selection information in a non-volatile memory 60 that retains its contents even without external power supply, during charging, the battery 10 can be charged by selecting the charging configuration information corresponding to the battery 10 assembled in the electronic device 2 from multiple charging configuration information based on this selection information. Alternatively, the battery 10 can be discharged by selecting the discharging configuration information corresponding to the battery 10 assembled in the electronic device 2 from multiple discharging configuration information based on the selection information.

[0060] Furthermore, the selection bits, which are selection information, can also be multiple bits, thereby enabling the selection of charging configuration information and discharging configuration information corresponding to the model of battery 10 from more than three charging configuration information and more than three discharging configuration information. Additionally, the writing of selection information to the non-volatile memory 60 is performed, for example, during the manufacturing of electronic device 2 and charging device 20.

[0061] exist Figure 5In this circuit, selection information is set via the terminal settings of the charging device 20. The selection information based on the terminal settings is set, for example, during the manufacturing of the electronic device 2 or during battery replacement. For example, when the terminal TSLB of the charging device 20 is pulled up, the charging configuration information CPF1 and the discharging configuration information DPF1 for a first-type battery are selected. Conversely, when the terminal TSLB of the charging device 20 is pulled down, the charging configuration information CPF2 and the discharging configuration information DPF2 for a second-type battery are selected. For example, a pull-up resistor RP is provided on the circuit board of the circuit device on which the charging device 20 is mounted, and the other end of the resistor RP, connected to VDD, is connected to the terminal TSLB, thereby enabling the pull-up of the terminal TSLB. Furthermore, a pull-down resistor RD is provided on the circuit board of the circuit device on which the charging device 20 is mounted, and the other end of the resistor RD, connected to GND, is connected to the terminal TSLB, thereby enabling the pull-down of the terminal TSLB. In this way, based on the selection information set by the terminal TSLB, the charging configuration information and discharging configuration information corresponding to the battery 10 assembled in the electronic device 2 can be selected from multiple charging configuration information and multiple discharging configuration information to perform charging and discharging of the battery 10.

[0062] 2. Selection of charging and discharging configuration information

[0063] When charging the battery, for example, a charging configuration information can be set for the charging device, and the charging control can be performed using this charging configuration information. Alternatively, the main system side, such as the CPU, can control the charging device according to the charging configuration information of the battery being used.

[0064] However, from a battery supply perspective, there are situations where electronic device assemblers purchase batteries from two companies. In such cases, there's a problem of not being able to flexibly change batteries during mass production based on battery inventory levels. For example, suppose batteries of the same standard and specifications but different models are purchased from Company A and Company B. Furthermore, if the charging device is configured with charging settings optimally suited to Company A's batteries, and Company A's battery inventory becomes scarce, then switching to Company B's batteries during mass production cannot be done based on the optimal charging configuration. Additionally, when users need to replace batteries while using electronic devices, there's also the problem of not being able to flexibly switch to readily available batteries based on inventory levels.

[0065] Therefore, in this embodiment, two or more charging configuration information and discharging configuration information are set for the charging device 20, so that the charging device 20 has the function of selecting which charging configuration information and discharging configuration information to use.

[0066] For example, consider a scenario where the assembler of electronic device 2 purchases batteries from two companies based on supply availability. This could involve selecting batteries for installation during mass production based on inventory availability, or replacing batteries with those appropriate for inventory availability during user use. In this case, the charging and discharging configurations for each of the multiple battery models purchased from the two companies differ. Therefore, multiple charging and discharging configurations corresponding to the multiple battery models are pre-set on the charging device 20. For example, these configurations are stored in non-volatile memory 60. Then, the charging device 20 selects the appropriate charging and discharging configurations for the battery being used, and performs charging and discharging control based on the selected configurations. This allows for adjustments to battery selection and availability at various times, even when purchasing batteries from two companies. For example, during mass production, batteries appropriate for inventory availability can be selected and assembled into electronic device 2, or batteries can be replaced with those appropriate for inventory availability during battery replacement.

[0067] Next, specific examples of charging configuration information and discharging configuration information will be explained. Figure 6 This is an example diagram showing charging and discharging configuration information. Figure 6 In this context, it becomes a combined charging and discharging configuration information, integrating charging and discharging configuration information. Additionally, Figure 6 The addresses AD0 to AD8 correspond to the address ranges of the various information stored in the configuration information.

[0068] exist Figure 6 The charging configuration information includes a voltage threshold VOC for overcharge detection. For example, the voltage threshold VOC for overcharge detection is stored at the address of AD0. When battery 10 is a lithium-ion battery, the full charge voltage is approximately 4.2 to 4.3V, and the voltage threshold VOC for overcharge detection is, for example, approximately 0.1V above the full charge voltage. In this way, the voltage threshold VOC for overcharge detection, which corresponds to the model of battery 10 assembled in electronic device 2, can be used to detect overcharge and control charging based on the detection result. For example, if the battery voltage VBAT becomes higher than the voltage threshold VOC, charging of battery 10 can be stopped to prevent battery 10 from being overcharged.

[0069] For example, in Figure 2 In the process, if the control circuit 50 determines, based on the voltage measurement result in the voltage measurement circuit 40, that the battery voltage VBAT has exceeded the voltage threshold VOC, it implements control to stop the charging circuit 30 from charging the battery 10. Specifically, in Figure 3In the process, the control circuit 50 turns off transistor TB2 via the control signal SDB. As a result, transistor TB1 also turns off, the charging current ICH becomes zero, and the charging circuit 30 stops charging the battery 10, preventing the battery 10 from being overcharged.

[0070] In addition, Figure 6 The charging configuration information includes charging control flow (CCF) settings. For example, the CCF settings are stored at the address of AD1. This allows the charging control flow of battery 10 to be set according to the CCF settings, enabling charging of battery 10. Thus, charging control of battery 10 can be achieved using a charging control flow corresponding to the model of battery 10 assembled in electronic device 2. For example, battery 10 can be charged using a charging control flow set according to the CCF settings, or using an appropriate charging control flow corresponding to the model of battery 10.

[0071] For example Figure 7 , Figure 8 , Figure 9 This is an example illustrating the charging control process. By setting the CCF (Charging Control Function), you can configure which part of these charging control processes will initiate charging, etc.

[0072] Figure 7 This is the standard charging control process. First, incremental charging is performed, where the charging current ICH increases in stages from the initial current value IINI in increments of ISTP. Through this incremental charging, when the charging current ICH reaches the target current value IST of standard charging, constant current charging is performed with a constant target current value IST and a constant current ICH. Furthermore, when the battery voltage VBAT reaches VCV, constant voltage charging based on constant voltage VCV is performed. Through this constant voltage charging, the charging current ICH decreases, the voltage drop across the internal resistance of battery 10 decreases, and the battery voltage VBAT approaches the cell voltage of battery 10. Then, when the charging current ICH falls below the charging termination current value IEN and a predetermined time TEN has elapsed, the control circuit 50 determines that battery 10 is fully charged and stops charging.

[0073] Figure 8 This describes the charging control process for fast charging. In fast charging, before the constant current charging of standard charging, for example, within a specified period, a constant current charging of a target current value IFA that is larger than the target current value IST of standard charging is performed. Therefore, battery 10 can be charged in a shorter time than standard charging.

[0074] Figure 9This describes the charging control process for ultra-fast charging. In ultra-fast charging, before the constant current charging of standard charging, for example, within a specified period, a constant current charging with a target current value IRP larger than the target current value IST of standard charging and the target current value IFA of fast charging is performed. Therefore, battery 10 can be charged in a shorter time than with standard charging or fast charging.

[0075] For example, a Type 1 battery can be ultra-fast charged, but a Type 2 battery can only be fast charged, and a Type 3 battery can only be charged to standard speed. In this case, if the battery 10 assembled in the electronic device 2 during manufacturing or battery replacement is a Type 1 battery, the ultra-fast charging control process is set according to the setting information CCF. Furthermore, if the battery 10 assembled in the electronic device 2 during manufacturing or battery replacement is a Type 2 battery, the fast charging control process is set according to the setting information CCF; and if it is a Type 3 battery, the standard charging control process is set according to the setting information CCF.

[0076] For example in Figure 6 The charging configuration information includes the target current values ​​IST, IFA, and IRP for constant current charging. For example, the target current value IST for standard charging, the target current value IFA for fast charging, and the target current value IRP for ultra-fast charging are stored in the address of AD2. Additionally, the charging termination current value IEN is also stored. This allows for constant current charging with a target current value corresponding to the model of the battery 10 assembled in the electronic device 2. For example, even for batteries of the same standard and specifications, the optimal target current value for constant current charging may differ depending on the battery model, but this can be appropriately addressed. For example, in various charging control processes such as standard charging, fast charging, and ultra-fast charging, constant current charging with target current values ​​IST, IFA, and IRP can be performed, enabling constant current charging with an appropriate target current value corresponding to the model of the battery 10.

[0077] In addition, Figure 6 The charging configuration information includes the constant voltage VCV value for constant voltage charging. For example, the constant voltage VCV value, which serves as the control voltage for constant current charging, is stored at the address of AD3. For example, if battery 10 is a lithium-ion battery, the constant voltage VCV can be set in a specified voltage step (e.g., 50mV) within the range of 3.6V to 4.5V. In this way, constant voltage charging can be performed under a constant voltage VCV corresponding to the model of battery 10 assembled in electronic device 2. For example, even for batteries of the same standard and specifications, there may be cases where the optimal constant voltage VCV for constant voltage charging varies depending on the battery model, but such cases can be appropriately addressed.

[0078] In addition, Figure 6The charging configuration information includes temperature management settings for charging battery 10. For example, the address of AD4 stores temperature thresholds for T0, T1, T2, T3, T4, and T5 as temperature management settings, and the address of AD5 stores current values ​​for I0, I1, and I2. Additionally, the address of AD6 stores voltages for V0C, V5C, V10C, V15C, V30C, V35C, V40C, and V45C. This allows charging under temperature management settings corresponding to the model of battery 10 assembled in electronic device 2. For example, even with batteries of the same standard and specifications, there may be cases where the optimal temperature management settings during charging differ depending on the battery model, but this can be appropriately addressed.

[0079] Figure 10 This is a diagram illustrating an example of temperature management settings in constant current charging. Figure 10 The temperature thresholds for T0, T1, T2, T3, T4, and T5, and the current values ​​for I0, I1, and I2 are as follows: Figure 6 As shown, the temperature management settings are set in the charging configuration information. T3, for example, corresponds to 25°C, which is a typical temperature.

[0080] Furthermore, within the low temperature ranges T0~T1, T1~T2, and T2~T3, low-rate constant current charging with target current values ​​of I0, I1, and I2 is performed respectively. Additionally, within the temperature range T3~T4, standard constant current charging with a target current value of IST or fast constant current charging with a target current value of IFA is performed. Furthermore, within the temperature range T4~T5, when the battery voltage VBAT is greater than VLIM, standard constant current charging with a target current value of IST or fast constant current charging with a target current value of IFA is performed. Furthermore, within the temperature range T4~T5, when VBAT is less than VLIM, standard constant current charging with a target current value of IST, fast constant current charging with a target current value of IFA, or ultra-fast constant current charging with a target current value of IRP is performed. Moreover, charging is stopped within temperature ranges lower than T0 and higher than T5. This process is repeated. Figure 10 Such temperature management settings enable constant current charging under appropriate temperature management corresponding to the model of battery 10.

[0081] Figure 11 This diagram illustrates an example of temperature management settings in constant voltage charging. Figure 11 The voltages of V0C, V5C, V10C, V15C, V30C, V35C, V40C, and V45C are as follows: Figure 6 As shown, temperature management settings are configured in the charging configuration information. For example, within a temperature range of 20°C to 30°C, [the following is performed / conducted]: Figure 6 Constant voltage charging is performed at the voltage set for VCV. On the other hand, constant voltage charging is performed at the voltage of VCV-V0C within a temperature range below 5°C. Furthermore, constant voltage charging is performed at voltages of VCV-V5C, VCV-V10C, and VCV-V15C within temperature ranges of 5°C–10°C, 10°C–15°C, and 15°C–20°C, respectively. Additionally, constant voltage charging is performed at voltages of VCV-V30C, VCV-V35C, and VCV-V40C within temperature ranges of 30°C–35°C, 35°C–40°C, and 40°C–45°C, respectively. Finally, constant voltage charging is performed at the voltage of VCV-V45C within a temperature range above 45°C. This process is repeated. Figure 11 Such temperature management settings enable constant voltage charging under appropriate temperature management, corresponding to the model of Battery 10.

[0082] In addition, Figure 6 The charging configuration information includes management settings based on the charging history of battery 10. For example, the address of AD7 stores management settings based on the charging history, namely α1, α2, α3, etc.

[0083] Figure 12 This is a diagram illustrating an example of management settings based on the charging history of battery 10. Figure 12 The horizontal axis represents the number of charge cycles, and the vertical axis represents the battery capacity. The number of charge cycles is also known as the cycle time. An increase in the number of charge cycles leads to battery degradation, such as a decrease in battery capacity. For example, when VCV1 > VCV2, ... Figure 12 As shown, if charged at VCV1 voltage, the battery can be charged to nearly 100% capacity with a small number of charging cycles. However, as the number of charging cycles increases, the rate of capacity reduction becomes greater compared to the case of charging at VCV2 voltage, and the degradation rate of battery 10 accelerates.

[0084] Therefore, in Figure 12 In the first charging cycle (fewer charging cycles), charging is performed at voltage VCV-α1. In the second charging cycle (more charging cycles than the first cycle), charging is performed at voltage VCV-α2. Furthermore, in the third charging cycle (more charging cycles than the second cycle), charging is performed at voltage VCV-α3. Here, since α1 > α2 > α3, the relationship VCV-α1 < VCV-α2 < VCV-α3 holds. Thus, as... Figure 12 As shown, compared with the case of charging at VCV1 voltage, the decrease in battery capacity with increasing charging cycles is smaller, which can suppress the degradation rate of battery 10.

[0085] In this way, by using charging configuration information that includes management setting information based on the charging history of battery 10, it is possible to perform appropriate management settings based on the model of battery 10 in the assembled electronic device 2. For example, by... Figure 12 The voltages α1, α2, and α3 are set to correspond to the model of battery 10, which can suppress the degradation rate of battery 10 with the increase of charging cycles.

[0086] In addition, Figure 6 The discharge configuration information includes a voltage threshold VDE for determining whether to stop the discharge. For example, the voltage threshold VDE for determining whether to stop the discharge is stored at address AD8. When battery 10 is a lithium-ion battery, the voltage threshold VDE for determining whether to stop the discharge is approximately 2.9 to 3.1V. In this way, by using the voltage threshold VDE for determining whether to stop the discharge of battery 10, which corresponds to the model of battery 10 assembled in electronic device 2, it is possible to determine whether to stop the discharge of battery 10 and to control the discharge based on the determination result. For example, when the battery voltage VBAT is below the voltage threshold VDE for determining whether to stop the discharge, the discharge of battery 10 can be stopped, and over-discharge of battery 10 can be prevented.

[0087] For example in Figure 2 In this circuit, the power supply circuit 80 outputs an output voltage VOUT based on the battery voltage VBAT of the battery 10 to supply power to the device 12. That is, power is supplied to the device 12 by discharging the battery 10. However, when the battery voltage VBAT drops due to the discharge of the battery 10, problems may occur, such as the battery 10 becoming over-discharged or the power supply circuit 80 failing to operate properly.

[0088] Regarding this, if a voltage threshold VDE for determining discharge stop is set as discharge configuration information, then, for example, if the battery voltage VBAT falls below the voltage threshold VDE, the power supply circuit 80 stops the discharge of the battery 10, and can stop the power supply to the power supply target device 12 based on the battery voltage VBAT. This prevents the battery 10 from being over-discharged, or prevents the power supply circuit 80 from malfunctioning due to a decrease in the battery voltage VBAT caused by discharge.

[0089] Furthermore, the discharge configuration information is not limited to the voltage threshold VDE used for discharge stop determination, and various configuration information can be envisioned. For example, when controlling the discharge of battery 10 to stop when the temperature of battery 10 becomes a low temperature or a high temperature, the temperature at which discharge stops can be set as the discharge configuration information. For example, if discharge stops when the temperature TL is below the low temperature side and above the temperature TH side, the temperatures TL and TH can be set to discharge configuration information that varies for each model. In this way, it is possible to achieve control of stopping the discharge of battery 10 at the temperature corresponding to the model of battery 10.

[0090] Figure 13 This is a flowchart illustrating the operation of this embodiment. When charging of the battery 10 begins, for example, the control circuit 50 reads selection information from the non-volatile memory 60, or sets selection information based on terminal settings (steps S1, S2). For example, when the electronic device 2 is installed in a charging dock, charging case, etc., the charging circuit 30 begins charging the battery 10. Thus, as... Figure 4 As described above, the control circuit 50 reads the selection information from the non-volatile memory 60, or as... Figure 5 As explained, the selection information is set through the TSLB terminal.

[0091] Next, based on the selection information, the control circuit 50 selects and reads charging configuration information and discharging configuration information from multiple charging configuration information and multiple discharging configuration information corresponding to multiple battery models stored in the non-volatile memory 60 (step S3). For example, if battery 10 is a first-type battery, the charging configuration information CPF1 and discharging configuration information DPF1 corresponding to the first-type battery are read from the non-volatile memory 60. Similarly, if battery 10 is a second-type battery, the charging configuration information CPF2 and discharging configuration information DPF2 corresponding to the second-type battery are read from the non-volatile memory 60. Then, the control circuit 50 starts charging control based on the read charging configuration information (step S4). For example, the control circuit 50 controls the charging circuit 30 based on the read charging configuration information, thereby performing charging control of battery 10 based on the charging configuration information. Furthermore, the control circuit 50 starts discharging control based on the read discharging configuration information (step S5). For example, the control circuit 50 controls the power supply circuit 80 based on the read discharging configuration information, thereby performing discharging control of battery 10 based on the discharging configuration information. Then, when the battery 10 is fully charged, the charging control and other processes end (step S6).

[0092] 3. Manufacturing methods of electronic devices and battery replacement methods

[0093] Next, the manufacturing method of the electronic device 2 and the battery 10 replacement method of this embodiment will be described. Figure 14 This is a flowchart illustrating the manufacturing method of the electronic device 2 according to this embodiment.

[0094] First, the battery 10 is assembled into the electronic device 2 (step S11). For example, the battery pack is installed onto the casing of the electronic device 2 at the assembly manufacturer of the electronic device 2. Then, if a first-type battery is assembled into the electronic device 2, the selection information of the first charging configuration information and the first discharging configuration information corresponding to the first-type battery is set in the charging device 20 and the process ends (steps S12, S13). For example, as... Figure 4 , Figure 5 As explained, the selection information is written to the non-volatile memory 60, or the selection information is set via the setting of the TSLB terminal. On the other hand, if a battery of type 2, not type 1, is assembled into the electronic device 2, the selection information for the second charging configuration information and the second discharging configuration information corresponding to the second type of battery is set in the charging device 20 and the process ends (steps S14 and S15). In addition, if other types of batteries are assembled, the selection information for the charging configuration information and the discharging configuration information corresponding to the other types of batteries is set in the charging device 20 and the process ends (step S16).

[0095] According to the manufacturing method of this embodiment, charging configuration information and discharging configuration information corresponding to the model of the battery 10 assembled in the electronic device 2 can be read from the non-volatile memory 60, and charging and discharging control of the battery 10 can be performed based on the read charging and discharging configuration information. Therefore, even if standard batteries of the same specifications but different models from two different companies are purchased, charging and discharging control of the battery 10 can still be performed using the charging and discharging configuration information corresponding to the model of the battery 10 assembled according to requirements.

[0096] Furthermore, the charging configuration information and discharging configuration information can be written into the non-volatile memory 60 either by the manufacturer of the circuit device implementing the charging device 20, or by the assembling manufacturer of the electronic device 2 after the circuit device is assembled into the electronic device 2. In the case where the assembly manufacturer of the electronic device 2 writes the information, for example, it is written by the processing device of the electronic device 2 via... Figure 2 The interface circuit 92 writes to the non-volatile memory 60. Furthermore, the non-volatile memory 60 can be a memory built into the circuitry implementing the charging device 20, or it can be configured as an external memory of the circuitry.

[0097] Figure 15This is a flowchart illustrating the battery replacement method of this embodiment. For example, when the battery needs to be replaced due to deterioration, the battery replacement is performed, for example, as a repair of electronic device 2.

[0098] First, the first-type battery is removed from the electronic device 2 (step S21). For example, a repairman from the manufacturer removes the first-type battery from the casing of the electronic device 2. That is, a battery replacement operation is performed because the battery capacity has decreased due to deterioration. Then, the second-type battery is installed on the electronic device 2 (step S22). That is, a replacement operation is performed with a new, non-deteriorated battery. In this case, since the first-type battery is not in stock, a second-type battery, which is different from the first-type battery, is used instead. Then, instead of selecting the first charging configuration information and the first discharging configuration information corresponding to the first-type battery, the selection information for the second charging configuration information and the second discharging configuration information corresponding to the second-type battery is set in the charging device 20 (step S23). Figure 4 For example, the selection information stored in the non-volatile memory 60 is rewritten to select the second charging configuration information and the second discharging configuration information corresponding to the second type of battery. Figure 5 For example, the terminal settings for the second charging configuration information and the second discharging configuration information corresponding to the second battery model are changed. This completes the battery replacement repair work.

[0099] According to this battery replacement method of the present embodiment, when replacing the battery of the electronic device 2 equipped with the first type battery, even if the first type battery is no longer available due to inventory conditions, the second type battery can be installed in the electronic device 2 to replace the first type battery. Furthermore, when the battery 10 is being charged, charging configuration information and discharging configuration information corresponding to the second type battery are read from the non-volatile memory 60, and charging control and discharging control of the battery 10 are performed based on the read charging configuration information and discharging configuration information.

[0100] As described above, the electronic device of this embodiment includes a replaceable battery and a charging device for charging the battery. The charging device includes: a non-volatile memory; a control circuit that performs charging control based on charging configuration information selected from multiple charging configuration information corresponding to multiple battery models stored in the non-volatile memory based on selection information; and a charging circuit that charges the battery based on the charging control.

[0101] According to this embodiment, based on selection information, charging configuration information corresponding to the battery model assembled in the electronic device is selected from a plurality of charging configuration information stored in a non-volatile memory. Then, battery charging control is performed according to the selected charging configuration information. Thus, appropriate charging control corresponding to the battery model assembled in the electronic device can be achieved.

[0102] Furthermore, in this embodiment, the selection information can also be stored in non-volatile memory.

[0103] In this way, selection information is stored in a non-volatile memory that can retain its contents even without an external power supply. Based on this selection information, the charging configuration information corresponding to the battery assembled in the electronic device can be selected to charge the battery.

[0104] Furthermore, in this embodiment, the selection information can also be set via terminal settings for the circuitry of the charging device.

[0105] In this way, the battery can be charged by selecting the charging configuration information corresponding to the battery assembled in the electronic device based on the selection information set by the terminals of the circuit device.

[0106] Furthermore, in this embodiment, the selection information can also be set during the manufacturing of the electronic device or during battery replacement.

[0107] In this way, the battery can be charged by selecting the charging configuration information corresponding to the battery assembled in the electronic device, based on the selection information set during the manufacturing of the electronic device or when the battery is replaced.

[0108] Furthermore, in this embodiment, the charging configuration information may also include a voltage threshold for overcharging determination.

[0109] In this way, overcharge determination can be achieved by using the voltage threshold corresponding to the model of the battery assembled in the electronic device, and overcharge determination and charging control based on the determination result can be realized.

[0110] Furthermore, in this embodiment, the charging configuration information may also include the setting information of the charging control process.

[0111] In this way, it is possible to achieve battery charging control under a charging control process that corresponds to the model of the battery assembled in the electronic device.

[0112] Furthermore, in this embodiment, the charging configuration information may also include the target current value for constant current charging.

[0113] In this way, constant current charging can be performed at a target current value corresponding to the model of the battery assembled in the electronic device.

[0114] Furthermore, in this embodiment, the charging configuration information may also include the constant voltage value for constant voltage charging.

[0115] In this way, constant voltage charging can be performed at a constant voltage level corresponding to the model of the battery assembled in the electronic device.

[0116] Furthermore, in this embodiment, the charging configuration information may also include temperature management settings for battery charging.

[0117] This allows charging to be performed under temperature management settings corresponding to the model of the battery assembled in the electronic device.

[0118] Furthermore, in this embodiment, the charging configuration information may also include management settings information based on the battery's charging history.

[0119] This allows for management settings based on the appropriate charging history corresponding to the model of the battery assembled in the electronic device.

[0120] Furthermore, in this embodiment, the charging device may also include a power supply circuit that supplies power to the device being charged based on the battery voltage. Additionally, the control circuit may control the power supply according to discharge configuration information selected from multiple discharge configuration information corresponding to multiple battery models stored in non-volatile memory, based on selection information.

[0121] In this way, when power is supplied to the device based on the battery voltage, the power supply can be realized by controlling the battery discharge based on the appropriate discharge configuration information corresponding to the battery model.

[0122] Furthermore, in this embodiment, the discharge configuration information may also include a voltage threshold for determining the discharge stop.

[0123] In this way, when power is supplied to the device being powered by discharging the battery, the discharge can be stopped using a voltage threshold for determining the discharge stop.

[0124] Furthermore, this embodiment is a method for manufacturing an electronic device including a replaceable battery and a charging device for charging the battery. The charging device includes: a non-volatile memory; a control circuit that performs charging control based on charging configuration information, which is selected from multiple charging configuration information corresponding to multiple battery models stored in the non-volatile memory based on selection information; and a charging circuit that charges the battery based on the charging control. Furthermore, when a first type of battery is assembled into the electronic device, selection information for selecting first charging configuration information corresponding to the first type of battery is set in the charging device. Additionally, when a second type of battery is assembled into the electronic device, selection information for selecting second charging configuration information corresponding to the second type of battery is set in the charging device.

[0125] According to this embodiment, charging configuration information corresponding to the model of the battery assembled in the electronic device can be read from a non-volatile memory, and battery charging control can be performed based on the read charging configuration information.

[0126] This embodiment discloses a battery replacement method for an electronic device including a replaceable battery and a charging device for charging the battery. The charging device includes: a non-volatile memory; a control circuit that performs charging control based on charging configuration information selected from multiple charging configuration information corresponding to multiple battery models stored in the non-volatile memory based on selection information; and a charging circuit that charges the battery through the charging control of the control circuit. Furthermore, when the battery of the electronic device is replaced from a first-model battery to a second-model battery, the selection information for selecting the second-model battery is set in the charging device instead of the selection information for selecting the first charging configuration information corresponding to the first-model battery.

[0127] According to this embodiment, when replacing the battery in an electronic device equipped with a first-type battery, a second-type battery can be installed in the electronic device instead of the first-type battery. Furthermore, during battery charging, charging configuration information corresponding to the second-type battery can be read from a non-volatile memory, and battery charging control can be performed based on the read charging configuration information.

[0128] Furthermore, although this embodiment has been described in detail above, those skilled in the art will readily understand that various modifications can be made without substantially departing from the novel aspects and effects of this disclosure. Therefore, all such modifications are included within the scope of this disclosure. For example, in the specification or drawings, a term described at least once with a different term that is more general or synonymous can be replaced with that different term anywhere in the specification or drawings. Additionally, all combinations of this embodiment and its modifications are also included within the scope of this disclosure. Furthermore, the structure / operation of electronic devices, charging devices, etc., are not limited to the content described in this embodiment, and various modifications can be implemented.

Claims

1. An electronic device, characterized in that, The electronic device includes: Replaceable battery; and A charging device that charges the battery. The charging device includes: Non-volatile memory; The control circuit performs charging control based on charging configuration information, which is selected from multiple charging configuration information corresponding to multiple battery models stored in the non-volatile memory based on selection information. as well as A charging circuit that charges the battery based on the charging control.

2. The electronic device according to claim 1, characterized in that, The selection information is stored in the non-volatile memory.

3. The electronic device according to claim 1, characterized in that, The selection information is set via terminal settings for the circuitry of the charging device.

4. The electronic device according to claim 1, characterized in that, The selection information is set during the manufacture of the electronic device or when the battery is replaced.

5. The electronic device according to claim 1, characterized in that, The charging configuration information includes a voltage threshold for overcharging detection.

6. The electronic device according to claim 1, characterized in that, The charging configuration information includes settings for the charging control process.

7. The electronic device according to claim 1, characterized in that, The charging configuration information includes the target current value for constant current charging.

8. The electronic device according to claim 1, characterized in that, The charging configuration information includes the constant voltage value for constant voltage charging.

9. The electronic device according to claim 1, characterized in that, The charging configuration information includes temperature management settings for the battery's charging.

10. The electronic device according to claim 1, characterized in that, The charging configuration information includes management settings based on the battery's charging history.

11. The electronic device according to claim 1, characterized in that, The charging device includes a power supply circuit that supplies power to the device being charged based on the battery voltage. The control circuit controls the power supply according to the discharge configuration information, which is selected from multiple discharge configuration information corresponding to multiple battery models stored in the non-volatile memory based on the selection information.

12. The electronic device according to claim 11, characterized in that, The discharge configuration information includes a voltage threshold for determining when to stop the discharge.

13. A method for manufacturing an electronic device, the electronic device comprising a replaceable battery and a charging device for charging the battery, characterized in that, The charging device includes: Non-volatile memory; The control circuit performs charging control based on charging configuration information, which is selected from multiple charging configuration information corresponding to multiple battery models stored in the non-volatile memory based on selection information. as well as A charging circuit, based on the aforementioned charging control, charges the battery. When a first-type battery is assembled into the electronic device, the selection information corresponding to the first-type battery is set in the charging device. When the second type of battery is assembled into the electronic device, the selection information for selecting the second charging configuration information corresponding to the second type of battery is set in the charging device.

14. A battery replacement method, comprising an electronic device including a replaceable battery and a charging device for charging the battery, characterized in that, The charging device includes: Non-volatile memory; The control circuit performs charging control based on charging configuration information, which is selected from multiple charging configuration information corresponding to multiple battery models stored in the non-volatile memory based on selection information. as well as The charging circuit charges the battery through the charging control of the control circuit. When the battery of the electronic device is replaced from a first-type battery to a second-type battery, the selection information for selecting the second-type battery corresponding to the second-type battery is set in the charging device instead of the selection information for selecting the first charging configuration information corresponding to the first-type battery.

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