Electronic device and operation method thereof

Abstract

This electronic device may comprise: a connector for a connection to an external power source; a charging circuit for converting the power provided through the connector; a battery for receiving the power through the charging circuit; and a controller operatively and / or electrically connected to the charging circuit. The controller can be configured to: identify information related to charging; identify a first voltage conversion ratio of the charging circuit on the basis of the information related to charging; control the charging circuit so as to convert, on the basis of the first voltage conversion ratio, the power provided through the connector; identify, on the basis of the information related to charging, a second voltage conversion ratio that differs from the first voltage conversion ratio of the charging circuit while the battery is being charged on the basis of the first voltage conversion ratio; and control the charging circuit so as to convert, on the basis of the second voltage conversion ratio, the power provided through the connector.

Description

Electronic device and method of operation thereof

[0001] Embodiments of the present invention relate to an electronic device for checking a voltage conversion ratio of a charging circuit and an operating method thereof.

[0002] Recently, as the mobility and portability of electronic devices have been emphasized, lightweight and slim designs have been demanded, while the trade-off between these and specifications and performance has been continuously required to exceed past levels, and the battery capacity of electronic devices is continuously increasing.

[0003] When an external power source (e.g., an adapter) is connected to an electronic device, the battery may be charged through the charging circuit of the electronic device. For example, the electronic device may recognize that an external power source is connected to a terminal (e.g., a connector) and transmit commands regarding a charging current and a charging voltage of the battery corresponding to the maximum power supported by the power source to the charging circuit. The charging circuit of the electronic device may initiate charging of the battery based on the commands regarding the charging current and the charging voltage of the battery. The charging circuit of the electronic device may convert power provided from the external power source into charging power for charging the battery. The conversion ratio between the input voltage to the charging circuit and the output voltage from the charging circuit may be fixed. For example, the electronic device may receive an input voltage approximately twice the battery voltage and charge the battery with a charging current corresponding to twice the input current.

[0004] According to one embodiment, an electronic device may include a connector for connection to an external power source, a charging circuit configured to convert power provided through the connector, a battery configured to receive power through the charging circuit, and a controller operatively and / or electrically connected to the charging circuit. The controller may be configured to identify information related to charging. The controller may be configured to identify a first voltage conversion ratio of the charging circuit based on the information related to charging. The controller may be configured to control the charging circuit to convert power provided through the connector based on the first voltage conversion ratio. The controller may be configured to identify a second voltage conversion ratio of the charging circuit, different from the first voltage conversion ratio, based on the information related to charging, while the battery is being charged based on the first voltage conversion ratio. The controller may be configured to control the charging circuit to convert power provided through the connector based on the second voltage conversion ratio.

[0005] According to one embodiment, a method of operating an electronic device may include an operation of checking information related to charging. The method may include an operation of checking a first voltage conversion ratio of a charging circuit of the electronic device based on the information related to charging. The method may include an operation of controlling the charging circuit to convert power provided through a connector of the electronic device for connection with an external power source based on the first voltage conversion ratio. The method may include an operation of checking a second voltage conversion ratio of the charging circuit, different from the first voltage conversion ratio, based on the information related to charging while a battery of the electronic device is being charged based on the first voltage conversion ratio. The method may include an operation of controlling the charging circuit to convert power provided through the connector based on the second voltage conversion ratio.

[0006] According to one embodiment, a computer-readable recording medium storing instructions configured to cause a processor of an electronic device to perform at least one operation may include an operation of checking information related to charging. The at least one operation may include an operation of checking a first voltage conversion ratio of a charging circuit of the electronic device based on the information related to charging. The at least one operation may include an operation of controlling the charging circuit to convert power provided through a connector of the electronic device for connection with an external power source based on the first voltage conversion ratio. The at least one operation may include an operation of checking a second voltage conversion ratio of the charging circuit, different from the first voltage conversion ratio, based on the information related to charging while a battery of the electronic device is being charged based on the first voltage conversion ratio. The at least one operation may include an operation of controlling the charging circuit to convert power provided through the connector based on the second voltage conversion ratio.

[0007] FIG. 1 is a block diagram of an electronic device according to one embodiment.

[0008] FIG. 2 is a flowchart of a method of operating an electronic device according to one embodiment.

[0009] FIG. 3 is a flowchart of a method of operating an electronic device according to one embodiment.

[0010] FIG. 4 is a flowchart of a method of operating an electronic device according to one embodiment.

[0011] FIG. 5 is a flowchart of a method of operating an electronic device according to one embodiment.

[0012] FIG. 6 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0013] FIG. 7 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0014] FIG. 8 is a flowchart of a method of operating an electronic device according to one embodiment.

[0015] FIG. 9 is a flowchart of a method of operating an electronic device according to one embodiment.

[0016] FIG. 10 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0017] FIG. 11 is a circuit diagram of a charging circuit of an electronic device according to one embodiment.

[0018] FIG. 12 is a circuit diagram of a charging circuit of an electronic device according to one embodiment.

[0019] FIG. 13 is a circuit diagram of a charging circuit of an electronic device according to one embodiment.

[0020] FIG. 14 is a circuit diagram of a charging circuit of an electronic device according to one embodiment.

[0021] FIG. 1 is a block diagram of an electronic device according to one embodiment.

[0022] Referring to FIG. 1, according to one embodiment, an electronic device (100) may be a device that receives power from a power source (190). The power source (190) may be a device that provides power to the electronic device (100). The power source (190) may be a device that transfers power to the electronic device (100). For example, the power source (190) may be a travel adapter (TA) that supports a programmable power supply (PPS), but the power source (190) may also be a device that does not support PPS. The power source (190) is a device that provides or transfers power and there is no limitation on its type. The electronic device (100) is a device that receives power and there is no limitation on its type.

[0023] According to one embodiment, the electronic device (100) may include a connector (110). The connector (110) is a component for connection to a power source (190). For example, the connector (110) may be a USB (universal serial bus) port, but there is no limitation on the type of the connector (110). A cable (191) for connection to the power source (190) may be connected to the connector (110). The electronic device (100) may receive power from the power source (190) through the connector (110).

[0024] According to one embodiment, the electronic device (100) may include a charging circuit (120) and a battery (130). The charging circuit (120) may provide power to the battery (130) based on power provided from an external power source (190). The charging circuit (120) may convert input power (e.g., input voltage and input current) of the charging circuit (120) and output output power (e.g., output voltage and output current). V1 of FIG. 1 may be an input voltage of the charging circuit (120). i1 of FIG. 1 may be an input current of the charging circuit (120). v2 of FIG. 1 may be an output voltage of the charging circuit (120). i2 of FIG. 1 may be an output current of the charging circuit (120). v2 of FIG. 1 may be an input voltage (e.g., charging voltage) of the battery (130). In FIG. 1, i2 may be an input current (e.g., a charging current) of the battery (130). The charging circuit (120) may convert the input voltage v1 into an output voltage v2. The charging circuit (120) may convert the input current i1 into an output current i2. The battery (130) may be charged based on the charging power (e.g., the output voltage v2 (e.g., the charging voltage) and / or the output current i2 (e.g., the charging current)) provided by the charging circuit (120).

[0025] According to one embodiment, the electronic device (100) may include a controller (150). The controller (150) (e.g., a processor) may, for example, execute software (e.g., a program) to control at least one other component (e.g., a hardware or software component) of the electronic device (100) connected to the controller (150) and perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculation, the controller (150) may store commands or data received from other components in a memory, process the commands or data stored in the memory, and store result data in the memory. According to one embodiment, the controller (150) may include a main processor (e.g., a central processing unit or an application processor) or an auxiliary processor (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together therewith. For example, if the electronic device (100) includes a main processor and a coprocessor, the coprocessor may be configured to use less power than the main processor or to be specialized for a given function. The coprocessor may be implemented separately from the main processor or as a part thereof. The coprocessor may control at least a portion of functions or states associated with at least one component of the electronic device (100), for example, on behalf of the main processor while the main processor is in an inactive (e.g., sleep) state, or together with the main processor while the main processor is in an active (e.g., application execution) state. In one embodiment, the coprocessor (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module or a communication module).According to one embodiment, the auxiliary processor (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. Such learning may be performed, for example, within the electronic device (100) itself on which the artificial intelligence model is executed, or may be performed through a separate server. The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model may include multiple artificial neural network layers. The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), deep Q-networks, or a combination of two or more of the above, but is not limited to the examples described above. In addition to the hardware structure, the artificial intelligence model may additionally or alternatively include a software structure. The memory of the electronic device (100) may store various data used by at least one component (e.g., the controller (150)) of the electronic device (100). The data may include, for example, software (e.g., a program) and input data or output data for commands related thereto. The memory of the electronic device (100) may include a volatile memory or a non-volatile memory.The program may be stored as software in the memory of the electronic device (100) and may include, for example, an operating system, middleware, or an application.

[0026] According to one embodiment, the controller (150) of the electronic device (100) can read various information while connected to the battery (130) and perform various appropriate logic operations based on the information. The charging voltage (e.g., v2) of the battery (130) can vary within the charging voltage range of the battery (130). The controller (150) can set the charging voltage (e.g., v2) and charging current (e.g., i2) of the battery (130) and control the charging circuit (120) based on information about the set charging voltage and charging current.

[0027] According to one embodiment, the electronic device (100) may include a power delivery integrated circuit (PDIC) (160). The PDIC (160) may identify a device connected to a connector (110) (e.g., a USB port) through USB communication, and transmit information about the identified device to a controller (150) through an inter integrated circuit (I2C). Based on the information from the PDIC (160), the controller (150) may recognize that a power source (190) (e.g., a travel adapter (TA) supporting a programmable power supply (PPS)) is connected to the connector (110), and may transmit an I2C command regarding a charging current and a charging voltage of a battery (130) corresponding to the maximum power supported by the power source (190) to the charging circuit (120).

[0028] According to one embodiment, the charging circuit (120) may convert an input voltage (e.g., v1) to an output voltage (e.g., v2) based on a voltage conversion ratio (e.g., N in FIG. 1). The “voltage conversion ratio” (e.g., N in FIG. 1) of the charging circuit (120) may be a ratio of an input voltage (e.g., v1) to an output voltage (e.g., v2) (equation 1).

[0029] (Mathematical formula 1) v1:v2= N:1

[0030] According to one embodiment, the charging circuit (120) may be a circuit having a variable voltage conversion ratio. For example, when the voltage conversion ratio of the charging circuit (120) is N1, v2=v1 / N1 and i2=N1*i1. For example, when the voltage conversion ratio of the charging circuit (120) is N2, v2=v1 / N2 and i2=N2*i1. The charging circuit (120) may include at least one switch. The controller (150) may adjust the voltage conversion ratio of the charging circuit (120) by controlling the charging circuit (120). The controller (150) may adjust the voltage conversion ratio of the charging circuit (120) by controlling at least one switch of the charging circuit (120). The structure of the charging circuit (120) will be described in detail with reference to FIGS. 11, 12, 13, and 14.

[0031] FIG. 2 is a flowchart of a method of operating an electronic device according to one embodiment. FIG. 2 can be explained with reference to the previously described embodiment.

[0032] At least some of the operations of FIG. 2 may be omitted. The order of the operations of FIG. 2 may be changed. Operations other than those of FIG. 2 may be performed before, during, or after the operations of FIG. 2.

[0033] Referring to FIG. 2, in operation 201, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may check information related to charging. For example, the “information related to charging” may include at least one of information about a cable (191) connected to the connector (110) (e.g., information about the type of the cable (191) or the maximum allowable current supported by the cable (191) (e.g., impedance information, authentication information)), information about the power supported by the power source (190) (e.g., supplyable voltage and current), or information about the charging power for charging the battery (130) (e.g., charging voltage and charging current, and / or input voltage and input current). An embodiment in which the electronic device (100) checks information related to charging will be described in detail with reference to FIGS. 3 and 4.

[0034] In operation 203, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may determine the first voltage conversion ratio of the charging circuit (120) based on information related to charging. For example, the electronic device (100) may determine the voltage conversion ratio (e.g., the optimal voltage conversion ratio) based on the charging power (e.g., the charging voltage or the charging current) of the battery (130) corresponding to the information related to charging and / or the charging loss of the electronic device (100). An embodiment in which the electronic device (100) determines the voltage conversion ratio will be described in detail with reference to FIG. 5.

[0035] In operation 205, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may control the charging circuit (120) to convert power provided through the connector (110) based on the first voltage conversion ratio identified in operation 203. The electronic device (100) may control at least one switch included in the charging circuit (120) based on the first voltage conversion ratio.

[0036] In operation 207, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may convert power provided from a power source (190) to a charging circuit (120) through a cable (191) and a connector (110) based on a first voltage conversion ratio. The charging circuit (120) may convert an input voltage (e.g., v1 of FIG. 1) to an output voltage (e.g., v2 of FIG. 1) based on the first voltage conversion ratio. The battery (130) may be charged by the charging voltage (e.g., v2 of FIG. 1) based on the first voltage conversion ratio.

[0037] In operation 209, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may determine a second voltage conversion ratio of the charging circuit (120) based on information related to charging. The electronic device (100) may determine a second voltage conversion ratio different from the first voltage conversion ratio of the charging circuit (120) based on the information related to charging while the battery (130) is being charged based on the first voltage conversion ratio. For example, as the charging of the battery (130) progresses based on the first voltage conversion ratio, the charging power (e.g., charging voltage and / or charging current) required by the battery (130) may change. Accordingly, the electronic device (100) may determine a second voltage conversion ratio different from the first voltage conversion ratio based on the information related to charging and / or the charging loss of the electronic device (100).

[0038] In operation 211, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may control the charging circuit (120) to convert power provided through the connector (110) based on the second voltage conversion ratio identified in operation 209 based on the second voltage conversion ratio. The electronic device (100) may control at least one switch included in the charging circuit (120) based on the second voltage conversion ratio.

[0039] In operation 213, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may convert power provided from the power source (190) based on a second voltage conversion ratio. The charging circuit (120) may convert an input voltage (e.g., v1 of FIG. 1) to an output voltage (e.g., v2 of FIG. 1) based on the second voltage conversion ratio. The battery (130) may be charged by the charging voltage (e.g., v2 of FIG. 1) based on the second voltage conversion ratio.

[0040] FIG. 3 is a flowchart of a method of operating an electronic device according to one embodiment. FIG. 3 can be explained with reference to the previously described embodiment.

[0041] Referring to FIG. 3, one can understand an embodiment in which an electronic device (100) checks at least one of information related to charging (e.g., information about a cable (191) connected to a connector (110) (e.g., information about the type of the cable (191) or information about the maximum allowable current supported by the cable (191) (e.g., impedance information, authentication information)), information about power supported by a power source (190) (e.g., supplyable voltage and current), or information about charging power for charging a battery (130) (e.g., charging voltage and charging current, input voltage and input current)).

[0042] At least some of the operations of FIG. 3 may be omitted. The order of the operations of FIG. 3 may be changed. Operations other than those of FIG. 3 may be performed before, during, or after the operations of FIG. 3.

[0043] Referring to FIG. 3, in operation 301, according to one embodiment, an electronic device (100) (e.g., a controller (150)) may communicate with a power source (190) via a PDIC (160). The electronic device (100) may communicate (e.g., USB communication) with a power source (190) (e.g., a TA supporting PPS) connected via a connector (110) using the PDIC (160).

[0044] In operation 303, according to one embodiment, the electronic device (100) (e.g., controller (150)) can check information related to charging through communication with a power source (190) using a PDIC (160). For example, the PDIC (160) can check a power source (190) connected to a connector (110) (e.g., USB port) through USB communication. For example, the PDIC (160) can check at least one of information related to charging corresponding to the power source (190) (e.g., information about a cable (191) connected to the connector (110) (e.g., information about the type of the cable (191) or information about the maximum allowable current supported by the cable (191) (e.g., impedance information, authentication information)), information about the power supported by the power source (190) (e.g., supplyable voltage and current), or information about the charging power for charging the battery (130) (e.g., charging voltage and charging current, input voltage and input current)).

[0045] In operation 305, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may control the PDIC (160) to provide a signal regarding information related to charging identified in operation 303 to the controller (150). For example, the PDIC (160) may identify information related to charging in operation 303 and provide a signal regarding the identified information to the controller (150).

[0046] In operation 307, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may check information related to charging based on a signal provided from the PDIC (160). For example, the controller (150) may check at least one of information about a cable (191) connected to the connector (110) (e.g., information about the type of the cable (191) or the maximum allowable current supported by the cable (191) (e.g., impedance information, authentication information)), information about power supported by the power source (190) (e.g., supplyable voltage and current), or information about charging power for charging the battery (130) (e.g., charging voltage and charging current, input voltage and input current) based on information related to charging provided from the PDIC (160) and / or the charging circuit (120).

[0047] Fig. 4 is a flowchart of a method of operating an electronic device according to one embodiment. Fig. 4 can be explained with reference to the previously described embodiment.

[0048] Referring to FIG. 4, one can understand an embodiment in which an electronic device (100) checks at least one of information related to charging (e.g., information about a cable (191) connected to a connector (110) (e.g., information about the type of the cable (191) or information about the maximum allowable current supported by the cable (191) (e.g., impedance information, authentication information)), information about power supported by a power source (190) (e.g., supplyable voltage and current), or information about charging power for charging a battery (130) (e.g., charging voltage and charging current, input voltage and input current)).

[0049] At least some of the operations of FIG. 4 may be omitted. The order of the operations of FIG. 4 may be changed. Operations other than those of FIG. 4 may be performed before, during, or after the operations of FIG. 4.

[0050] Referring to FIG. 4, in operation 401, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may check the impedance of the cable (191) connected to the connector (110) through the PDIC (160). For example, the PDIC (160) may check the impedance of the cable (191) connected to the connector (110). For example, the PDIC (160) may inject a signal into CC1 / CC2 or DP / DN of the cable (191). The PDIC (160) may check the impedance of the cable (191) based on the signal injected into CC1 / CC2 or DP / DN of the cable (191). As another example, the PDIC (160) may exchange authentication information with the cable (191) and check the characteristics (e.g., impedance) of the cable (191) based on the authentication information.

[0051] In operation 403, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may control the PDIC (160) to provide a signal regarding information related to the impedance identified in operation 401 to the controller (150). For example, the PDIC (160) may provide a signal regarding the impedance identified in operation 401 to the controller (150).

[0052] In operation 405, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may check information related to charging based on a signal provided from the PDIC (160). For example, the electronic device (100) (e.g., the controller (150)) may check at least one of information related to charging (e.g., information about a cable (191) connected to the connector (110) (e.g., information about the type of the cable (191) or information about the maximum allowable current supported by the cable (191) (e.g., impedance information, authentication information)), information about power supported by the power source (190) (e.g., supplyable voltage and current), or information about charging power for charging the battery (130) (e.g., charging voltage and charging current, input voltage and input current)). For example, the electronic device (100) (e.g., controller (150)) can determine the maximum allowable current corresponding to the impedance of the cable (191) based on a rating table. The “rating table” can include information about the impedance of the cable (191) and the allowable current matching the impedance.

[0053] FIG. 5 is a flowchart of a method of operating an electronic device according to one embodiment. FIG. 5 may be described with reference to the previously described embodiments, FIG. 6, and FIG. 7. FIG. 6 is a diagram illustrating the operation of an electronic device according to one embodiment. FIG. 7 is a diagram illustrating the operation of an electronic device according to one embodiment.

[0054] Referring to FIGS. 5, 6, and 7, one can understand an embodiment in which an electronic device (100) determines a voltage conversion ratio based on information related to charging.

[0055] At least some of the operations of FIG. 5 may be omitted. The order of the operations of FIG. 5 may be changed. Operations other than those of FIG. 5 may be performed before, during, or after the operations of FIG. 5.

[0056] Referring to FIG. 5, in operation 501, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may check at least one of information related to charging (e.g., information about a cable (191) connected to the connector (110) (e.g., information about the type of the cable (191) or the maximum allowable current supported by the cable (191), information about the maximum power supported by the power source (190) (e.g., input voltage and input current), or information about the charging power for charging the battery (130) (e.g., charging voltage and charging current)). Operation 501 may correspond to operation 201 of FIG. 2, operation 307 of FIG. 3, or operation 405 of FIG. 4.

[0057] In operation 503, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may check the charging current of the battery (130). The electronic device (100) may check the charging current required for charging the battery (130) based on information related to charging before charging of the battery (130) begins. The electronic device (100) may check the charging current provided to the battery (130) while the battery (130) is being charged. The electronic device (100) may check the second charging current required for charging the battery (130) based on information related to charging while the battery (130) is being charged by the first charging current. The "current first charging current" and the "required second charging current" may be different, in which case the electronic device (100) may check that a change in the charging current is required. The “current first charging current” and the “required second charging current” may be the same, in which case the electronic device (100) may determine that maintenance of the charging current is required.

[0058] In operation 505, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may determine a charging loss of the electronic device (100) based on the charging current of the battery (130). The “charging loss” may be a loss that occurs in the electronic device (100) while the battery (130) is being charged based on the first charging current. For example, the charging loss may include a loss that occurs in the connector (110) due to power provided from the power source (190). For example, the charging loss may include a loss (e.g., a conduction loss due to an input current) that occurs due to a wiring resistance (e.g., 111 of FIG. 1) from the connector (110) to the charging circuit (120) due to power provided from the power source (190). For example, the charging loss may include a loss that occurs when power is converted in the charging circuit (120) depending on the efficiency of the charging circuit (120). The electronic device (100) can check the input current (e.g., the input current provided from the power source (190) to the electronic device (100), the input current provided from the charging circuit (120), the input current required to be provided from the power source (190) to the electronic device (100), and / or the input current required to be provided to the charging circuit (120)) based on the charging current of the battery (130) and can check the charging loss of the electronic device (100) based on the checked charging current and the checked input current (e.g., the charging loss currently occurring in the electronic device (100) and / or the charging loss expected to occur in the electronic device (100). FIG. 6 is a graph of charging current and charging loss according to a voltage conversion ratio. For example, referring to FIG. 6, the relationship between the charging current and the charging loss can be confirmed when the voltage conversion ratio N1 is 2 (e.g., 2:1) and when the voltage conversion ratio N2 is 4 (e.g., 4:1).The electronic device (100) can check the charging current (e.g., the current charging current and / or the required charging current) and check the charging loss corresponding to the checked charging current. FIG. 6 is merely an example, and the relationship between the charging current and the charging loss is not limited to FIG. 6. For example, although FIG. 6 is a graph regarding two voltage conversion ratios, there is no limit to the number of voltage conversion ratios that the charging circuit (120) can provide. The electronic device (100) can check the relationship between the charging current and the charging loss according to a plurality of voltage conversion ratios.

[0059] In operation 507, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may determine the voltage conversion ratio of the charging circuit (120) based on the charging loss of the electronic device (100). For example, the electronic device (100) may determine the voltage conversion ratio of the charging circuit (120) based on information related to charging so as to lower or minimize the charging loss. The electronic device (100) may determine the charging current (e.g., the current charging current and / or the required charging current) and determine (e.g., select or determine) the voltage conversion ratio so as to lower or minimize the charging loss corresponding to the determined charging current. For example, referring to FIG. 6, when the selectable voltage conversion ratio is 2 or 4, the electronic device (100) can confirm (e.g., select or determine) the voltage conversion ratio of the charging circuit (120) as 2 so as to reduce or minimize the charging loss by confirming the charging current (e.g., the current charging current and / or the required charging current) as 6 [A]. For example, referring to FIG. 7, the electronic device (100) can confirm (e.g., select or determine) the voltage conversion ratio according to the range of the confirmed charging current (e.g., the current charging current and / or the required charging current). For example, in FIGS. 6 and 7, when the selectable voltage conversion ratio is 2 or 4, when the charging current is less than (or equal to) 6.5 [A], the charging loss may be smaller when the voltage conversion ratio is 2, and when the charging current is more than (or equal to) 6.5 [A], the charging loss may be smaller when the voltage conversion ratio is 4. In this case, the electronic device (100) checks (e.g., selects or determines) the voltage conversion ratio as 2 when the confirmed charging current (e.g., current charging current and / or required charging current) is less than (or equal to) 6.5 [A], and checks (e.g., selects or determines) the voltage conversion ratio as 2 when the confirmed charging current (e.g., current charging current and / or required charging current) is 6.When it exceeds (or is greater than) 5[A], the voltage conversion ratio can be confirmed (e.g., selected or determined) as 4. The electronic device (100) can confirm the voltage conversion ratio by considering the charging loss as described above, and can also confirm the voltage conversion ratio by considering the allowable current and charging loss of the cable (191) among the information related to charging as described below.

[0060] FIG. 8 is a flowchart of a method of operating an electronic device according to one embodiment. FIG. 8 may be described with reference to the previously described embodiments, FIG. 9, and FIG. 10. FIG. 9 is a flowchart of a method of operating an electronic device according to one embodiment. FIG. 10 is a diagram explaining the operation of an electronic device according to one embodiment.

[0061] Referring to FIGS. 8, 9, and 10, one can understand an embodiment in which an electronic device (100) determines a voltage conversion ratio based on information related to charging.

[0062] At least some of the operations of FIG. 8 may be omitted. The order of the operations of FIG. 8 may be changed. Operations other than those of FIG. 8 may be performed before, during, or after the operations of FIG. 8.

[0063] Referring to FIG. 8, in operation 801, according to one embodiment, the electronic device (100) (e.g., controller (150)) may check the voltage conversion ratio of the charging circuit (120). Operation 801 may correspond to operation 507 of FIG. 5. The electronic device (100) may check the charging current (e.g., charging current currently provided to the battery (130) and / or charging current required to be provided to the battery (130)) based on information related to charging, and select the voltage conversion ratio based on the charging loss corresponding to the charging current.

[0064] In operation 803, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may check an input current corresponding to the charging current. For example, the input current may be determined based on the charging current and the voltage conversion ratio, and the electronic device (100) may request the power source (190) to provide power based on the determined input current. Before requesting the power source (190) to provide (or change) power, the electronic device (100) may check an input current (e.g., expected input current) corresponding to the charging current. The “expected input current” may be a current that is required to be provided from the power source (190) to the electronic device (100) or a current that is required to be input to the charging circuit (120) in order to satisfy the checked charging current.

[0065] In operation 805, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may compare the input current (e.g., the expected input current) identified in operation 803 with the allowable current (e.g., the maximum allowable current of the cable (191)). The electronic device (100) may identify the input current (e.g., the expected input current) corresponding to the charging current of the battery (130), identify the maximum allowable current of the cable (191) based on information related to charging, and compare the input current (e.g., the expected input current) with the allowable current.

[0066] In operation 807, according to one embodiment, the electronic device (100) (e.g., controller (150)) may determine (e.g., select or change) a voltage conversion ratio based on a comparison result between an input current (e.g., expected input current) and an allowable current.

[0067] An embodiment of the operation of Fig. 8 will be described with reference to Fig. 9.

[0068] At least some of the operations of FIG. 9 may be omitted. The order of the operations of FIG. 9 may be changed. Operations other than those of FIG. 9 may be performed before, during, or after the operations of FIG. 9.

[0069] The operation of FIG. 9 may be performed to change (or maintain) the voltage conversion ratio of the charging circuit (120) while the battery (130) of the electronic device (100) is being charged, or may be performed to determine (or set) the voltage conversion ratio of the charging circuit (120) before charging the battery (130) of the electronic device (100).

[0070] Referring to FIG. 9, in operation 901, according to one embodiment, the electronic device (100) (e.g., controller (150)) may check the charging current of the battery (130). Operation 901 may correspond to operation 503 of FIG. 5.

[0071] In operation 903, according to one embodiment, the electronic device (100) (e.g., controller (150)) may determine a voltage conversion ratio (e.g., N) of the charging circuit (120) based on a charging loss of the electronic device (100) corresponding to a charging current of the battery (130). Operations 901 and 903 may correspond to operations 503, 505, and 507 of FIG. 5 .

[0072] In operation 905, according to one embodiment, the electronic device (100) (e.g., controller (150)) may check an input current corresponding to the charging current. Operation 905 may correspond to operation 803 of FIG. 8.

[0073] In operation 907, according to one embodiment, the electronic device (100) (e.g., controller (150)) may compare the input current (e.g., expected input current) identified in operation 905 with the allowable current (e.g., maximum allowable current of the cable (191)). Operation 907 may correspond to operation 805 of FIG. 8.

[0074] In operation 909, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may convert power using the charging circuit (120) based on the voltage conversion ratio identified in operation 903, based on the input current (e.g., the expected input current) being less than or equal to the allowable current (e.g., the maximum allowable current of the cable (191)). The electronic device (100) may control the charging circuit (120) based on the identified voltage conversion ratio. According to one embodiment, the electronic device (100) (e.g., the controller (150)) may request power corresponding to the input current (e.g., the expected input current) from the power source (190), based on the input current (e.g., the expected input current) being less than or equal to the allowable current (e.g., the maximum allowable current of the cable (191)).

[0075] In operation 911, according to one embodiment, the electronic device (100) (e.g., controller (150)) may determine a new voltage conversion ratio (e.g., N+1) by replacing the voltage conversion ratio (e.g., N) determined in operation 903 based on the input current (e.g., expected input current) exceeding the allowable current (e.g., maximum allowable current of the cable (191)). The new voltage conversion ratio is N+1 as illustrated in FIG. 9, but there is no limitation on the manner of determining the new voltage conversion ratio. For example, the new voltage conversion ratio may be N+2 or 2*N.

[0076] In operation 913, according to one embodiment, the electronic device (100) (e.g., controller (150)) may compare the voltage conversion ratio identified in operation 911 with the maximum voltage conversion ratio. The “maximum voltage conversion ratio” may be the maximum value among the voltage conversion ratios that the charging circuit (120) can provide.

[0077] In operation 915, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may determine whether the voltage conversion ratio determined in operation 911 is a voltage conversion ratio that can be supported by the charging circuit (120) based on the fact that the voltage conversion ratio determined in operation 911 is less than or equal to the maximum voltage conversion ratio. Referring to FIGS. 11, 12, 13, and 14, the voltage conversion ratio that can be supported by the charging circuit (120) may vary depending on the design of the charging circuit (120). Accordingly, the electronic device (100) may additionally determine whether the voltage conversion ratio determined in operation 911 is a voltage conversion ratio that can be supported by the charging circuit (120), even if the voltage conversion ratio determined in operation 911 is less than or equal to the maximum voltage conversion ratio. Alternatively, those skilled in the art will understand that operation 915 may be performed before operation 913 is performed. For example, during the process of performing operation 911, the electronic device (100) may select a new voltage conversion ratio from among the voltage conversion ratios that the charging circuit (120) can support. The electronic device (100) may perform operation 905 based on the new voltage conversion ratio selected in operation 911, as the new voltage conversion ratio selected in operation 911 satisfies the conditions of operation 913 and operation 915. The electronic device (100) may perform operation 911 again, as the voltage conversion ratio confirmed in operation 911 is not a voltage conversion ratio that the charging circuit (120) can support.

[0078] In operation 917, according to one embodiment, the electronic device (100) (e.g., the controller (150)) may reselect the charging current of the battery (130) based on whether the voltage conversion ratio identified in operation 911 exceeds the maximum voltage conversion ratio. The electronic device (100) may reselect the charging current of the battery (130) based on information related to charging based on whether the voltage conversion ratio identified in operation 911 exceeds the maximum voltage conversion ratio.

[0079] Referring to FIGS. 9 and 10 , according to one embodiment, the electronic device (100) may determine the voltage conversion ratio of the charging circuit (120) based on the charging loss corresponding to the charging current required from the battery (130). While the battery (130) is being charged according to the determined voltage conversion ratio, as the charging current required from the battery (130) increases in a range of, for example, 6 [A] or less, the electronic device (100) may request an increase in the input current from the power source (190). While the input current increases, the electronic device (100) may change the voltage conversion ratio of the charging circuit (120) before the input current exceeds the allowable current by comparing the expected input current corresponding to the charging current and the allowable current of the cable (191). For example, in Fig. 10, it can be seen that an embodiment operates with a voltage conversion ratio of 2 when the charging current is 6 [A] or less, and changes the voltage conversion ratio from 2 to 4 as the charging current exceeds 6 [A].

[0080] FIG. 11 is a circuit diagram of a charging circuit of an electronic device according to one embodiment. FIG. 12 is a circuit diagram of a charging circuit of an electronic device according to one embodiment. FIG. 13 is a circuit diagram of a charging circuit of an electronic device according to one embodiment. FIG. 14 is a circuit diagram of a charging circuit of an electronic device according to one embodiment.

[0081] With reference to FIGS. 11, 12, 13, and 14, it is possible to understand the operation of the electronic device (100) to control the voltage conversion ratio of the charging circuit (120).

[0082] Referring to the circuit diagram (1100) of FIG. 11, the charging circuit (120) may include a plurality of switches (1111, 1112, 1113, 1114, 1115, 1116, 1117, 1118, 1119, 1120) and a plurality of capacitors (1101, 1102, 1103). Input power (e.g., v1 and i1 of FIG. 1) may be input to a first terminal of a first switch (1111). A second terminal of the first switch (1111) may be electrically connected to a first terminal of a second switch (1112). A second terminal of the second switch (1112) may be electrically connected to a first terminal of a third switch (1113). The second terminal of the third switch (1113) may be electrically connected to the first terminal of the fourth switch (1114). The second terminal of the fourth switch (1114) may be electrically connected to the first terminal of the fifth switch (1115). The second terminal of the fifth switch (1115) may be electrically connected to the first terminal of the sixth switch (1116). The second terminal of the sixth switch (1115) may be electrically connected to the ground terminal. The second terminal of the fourth switch (1114) may be electrically connected to the first terminal of the seventh switch (1117). The second terminal of the seventh switch (1117) may be electrically connected to the first terminal of the eighth switch (1118). The second terminal of the eighth switch (1115) may be electrically connected to a ground terminal. The second terminal of the fourth switch (1114) may be electrically connected to a first terminal of the ninth switch (1119). The second terminal of the ninth switch (1119) may be electrically connected to a first terminal of the tenth switch (1120). The second terminal of the tenth switch (1120) may be electrically connected to a ground terminal. The first terminal of the first capacitor (1101) may be electrically connected to a second terminal of the first switch (1111). The second terminal of the first capacitor (1101) may be electrically connected to a second terminal of the fifth switch (1115).A first terminal of the second capacitor (1102) may be electrically connected to a second terminal of the second switch (1112). A second terminal of the second capacitor (1102) may be electrically connected to a second terminal of the ninth switch (1119). A first terminal of the third capacitor (1103) may be electrically connected to a second terminal of the third switch (1113). A second terminal of the third capacitor (1102) may be electrically connected to a second terminal of the seventh switch (1117). A first terminal of the ninth switch (1119) may be an output terminal of the charging circuit (120).

[0083] Referring to FIGS. 11, 12, and 13, it can be understood that in the same charging circuit (120), the voltage conversion ratio of the charging circuit (120) changes depending on the operation of a plurality of switches (1111, 1112, 1113, 1114, 1115, 1116, 1117, 1118, 1119, 1120).

[0084] Referring to the circuit diagram (1100) of FIG. 11, the electronic device (100) (e.g., the controller (150)) can control the voltage conversion ratio of the charging circuit (120) to 4 by alternately controlling the on / off of the first group of switches (e.g., the first switch (1111), the third switch (1113), the fifth switch (1115), the seventh switch (1117), and the tenth switch (1120)) indicated by φ1 and the second group of switches (e.g., the second switch (1112), the fourth switch (1114), the sixth switch (1116), the eighth switch (1118), and the ninth switch (1119)) indicated by φ2 in the charging circuit (120). Accordingly, the output voltage (e.g., V) of the charging circuit (120) O ) is the input voltage (e.g. V IN ) is 1 / 4 of the input current, and the output current of the charging circuit (120) can be 4 times the input current.

[0085] Referring to the circuit diagram (1200) of FIG. 12, the electronic device (100) (e.g., the controller (150)) alternately controls the on / off of the first group of switches (e.g., the third switch (1113) and the seventh switch (1117)) indicated by φ1 and the second group of switches (e.g., the fourth switch (1114) and the eighth switch (1118)) indicated by φ2 in the charging circuit (120), controls the third group of switches (e.g., the first switch (1111), the second switch (1112), the sixth switch (1116), and the tenth switch (1120)) indicated by φ3 to be on, and controls the fourth group of switches (e.g., the fifth switch (1115) and the ninth switch (1119)) indicated by φ4 to be off, thereby increasing the voltage conversion ratio of the charging circuit (120). 2 can be controlled. Accordingly, the output voltage of the charging circuit (120) (e.g., V O ) is the input voltage (e.g. V IN ) is 1 / 2 of the input current, and the output current of the charging circuit (120) can be twice the input current.

[0086] Referring to the circuit diagram (1300) of FIG. 13, the electronic device (100) (e.g., the controller (150)) alternately controls the on / off of the first group of switches (e.g., the third switch (1113), the seventh switch (1117), and the tenth switch (1120)) indicated by φ1 and the second group of switches (e.g., the second switch (1112), the fourth switch (1114), the eighth switch (1118), and the ninth switch (1119)) indicated by φ2 in the charging circuit (120), controls the third group of switches (e.g., the first switch (1111) and the sixth switch (1116)) indicated by φ3 to be on, and controls the fourth group of switches (e.g., the fifth switch (1115)) indicated by φ4 to be off, thereby increasing the voltage conversion ratio of the charging circuit (120). 3 can be controlled. Accordingly, the output voltage of the charging circuit (120) (e.g., V O ) is the input voltage (e.g. V IN) is 1 / 3 of the input current, and the output current of the charging circuit (120) can be three times the input current.

[0087] Accordingly, the charging circuit (120) of FIGS. 11, 12, and 13 can provide multiple voltage conversion ratios (e.g., 2, 3, 4).

[0088] When the charging circuit (120) is configured as in the circuit diagram (1400) of Fig. 14, the charging circuit (120) can provide a voltage conversion ratio of 4:1 or 2:1.

[0089] Therefore, depending on the configuration of the charging circuit (120), the maximum voltage conversion ratio of the charging circuit (120) and the voltage conversion ratio that can be supported by the charging circuit (120) can be determined.

[0090] Those skilled in the art will appreciate that the embodiments described herein may be organically applied to one another within their applicable scope. For example, those skilled in the art will appreciate that at least some operations of one embodiment described herein may be omitted and applied, or at least some operations of one embodiment may be organically connected and applied to at least some operations of another embodiment.

[0091] According to one embodiment, an electronic device (100) may include a connector (110) for connection with an external power source (190), a charging circuit (120) configured to convert power provided through the connector (110), a battery (130) configured to receive power through the charging circuit (120), and a controller (150) operatively and / or electrically connected to the charging circuit (120). The controller (150) may be configured to check information related to charging. The controller (150) may be configured to check a first voltage conversion ratio of the charging circuit (120) based on the information related to charging. The controller (150) may be configured to control the charging circuit (120) to convert power provided through the connector (110) based on the first voltage conversion ratio. The controller (150) may be configured to determine a second voltage conversion ratio, which is different from the first voltage conversion ratio, of the charging circuit (120) based on information related to the charging while the battery (130) is being charged based on the first voltage conversion ratio. The controller (150) may be configured to control the charging circuit (120) to convert power provided through the connector (110) based on the second voltage conversion ratio.

[0092] According to one embodiment, the charging-related information may include at least one of information on the allowable current of a cable (191) connected to the connector (110) or information on an input current from the power source (190) to the electronic device (100).

[0093] According to one embodiment, the controller (150) may be configured to check a charging current for charging the battery (130) based on the charging-related information. The controller (150) may be configured to check a charging loss of the electronic device (100) based on the charging current. The controller (150) may be configured to check the first voltage conversion ratio or the second voltage conversion ratio based on the charging loss.

[0094] According to one embodiment, the controller (150) may be configured to determine an expected input current to be provided from the power source (190) based on the charging current while the battery (130) is being charged based on the first voltage conversion ratio. The controller (150) may be configured to determine to change the voltage conversion ratio of the charging circuit (120) from the first voltage conversion ratio to the second voltage conversion ratio by comparing the expected input current to be provided from the power source (190) with the allowable current of the cable (191).

[0095] According to one embodiment, the controller (150) may be configured to check the second voltage conversion ratio when the expected input current to be provided from the power source (190) exceeds the allowable current. The controller (150) may be configured to perform at least one operation based on the second voltage conversion ratio based on the second voltage conversion ratio being less than or equal to a maximum voltage conversion ratio. The controller (150) may be configured to check whether the second voltage conversion ratio is supportable by the charging circuit (120) based on the second voltage conversion ratio being less than or equal to the maximum voltage conversion ratio. The controller (150) may be configured to check the input current (e.g., i1 in FIG. 1) based on the second voltage conversion ratio based on the second voltage conversion ratio being less than or equal to the maximum voltage conversion ratio. The controller (150) can control the charging circuit (120) to convert power based on the second voltage conversion ratio, based on the second voltage conversion ratio being less than or equal to the maximum voltage conversion ratio.

[0096] According to one embodiment, the controller (150) may be configured to reselect the charging current as the second voltage conversion ratio exceeds the maximum voltage conversion ratio.

[0097] According to one embodiment, the controller (150) may be configured to check information related to charging based on communication with the power source (190).

[0098] According to one embodiment, the electronic device (100) may include a power delivery integrated circuit (PDIC) (160) operatively and / or electrically connected to the connector (110) and the controller (150). The PDIC (160) may be configured to identify information related to charging through universal serial bus (USB) power delivery (PD) communication with the power source (190). The PDIC (160) may be configured to provide a first signal regarding the identified information related to charging to the controller (150). The controller (150) may be configured to identify the information related to charging based on the first signal.

[0099] According to one embodiment, the controller (150) may be configured to check the charging-related information based on the impedance of the cable (191) connected to the connector (110).

[0100] According to one embodiment, the electronic device (100) may include a power delivery integrated circuit (PDIC) (160) operatively and / or electrically connected to the connector (110) and the controller (150). The PDIC (160) may be configured to check the impedance of the cable (191) connected to the connector (110). The PDIC (160) may be configured to provide a second signal regarding the impedance of the cable (191) to the controller (150). The controller (150) may be configured to check information related to the charging based on the second signal.

[0101] According to one embodiment, a method of operating an electronic device (100) may include an operation of checking information related to charging. The method may include an operation of checking a first voltage conversion ratio of a charging circuit (120) of the electronic device (100) based on the information related to charging. The method may include an operation of controlling the charging circuit (120) to convert power provided through a connector (110) of the electronic device (100) for connection with an external power source (190) based on the first voltage conversion ratio. The method may include an operation of checking a second voltage conversion ratio of the charging circuit (120) that is different from the first voltage conversion ratio while a battery (130) of the electronic device (100) is being charged based on the first voltage conversion ratio, based on the information related to charging. The method may include an operation of controlling the charging circuit (120) to convert power provided through the connector (110) based on the second voltage conversion ratio.

[0102] According to one embodiment, the charging-related information may include at least one of information on the allowable current of a cable (191) connected to the connector (110) or information on an input current from the power source (190) to the electronic device (100).

[0103] According to one embodiment, the operation of checking the first voltage conversion ratio or the operation of checking the second voltage conversion ratio may include an operation of checking a charging current for charging the battery (130) based on the information related to the charging. The operation of checking the first voltage conversion ratio or the operation of checking the second voltage conversion ratio may include an operation of checking a charging loss of the electronic device (100) based on the charging current. The operation of checking the first voltage conversion ratio or the operation of checking the second voltage conversion ratio may include an operation of checking the first voltage conversion ratio or the second voltage conversion ratio based on the charging loss.

[0104] According to one embodiment, the operation of checking the second voltage conversion ratio may include an operation of checking an expected input current to be provided from the power source (190) based on the charging current while the battery (130) is being charged based on the first voltage conversion ratio. The operation of checking the second voltage conversion ratio may include an operation of determining to change the voltage conversion ratio of the charging circuit (120) from the first voltage conversion ratio to the second voltage conversion ratio by comparing the expected input current to be provided from the power source (190) with the allowable current of the cable (191).

[0105] According to one embodiment, the operation of checking the second voltage conversion ratio may include an operation of checking the second voltage conversion ratio when the expected input current to be provided from the power source (190) exceeds the allowable current. The operation of checking the second voltage conversion ratio may include an operation of performing at least one operation based on the second voltage conversion ratio based on the second voltage conversion ratio being less than or equal to a maximum voltage conversion ratio. The at least one operation may include an operation of checking whether the second voltage conversion ratio is supportable by the charging circuit (120) based on the second voltage conversion ratio being less than or equal to a maximum voltage conversion ratio. The at least one operation may include an operation of checking an input current (e.g., i1 of FIG. 1) based on the second voltage conversion ratio based on the second voltage conversion ratio being less than or equal to a maximum voltage conversion ratio. The at least one operation may include controlling the charging circuit (120) to convert power based on the second voltage conversion ratio, based on the second voltage conversion ratio being less than or equal to a maximum voltage conversion ratio.

[0106] In one embodiment, the operation of determining the second voltage conversion ratio may include an operation of reselecting the charging current when the second voltage conversion ratio exceeds the maximum voltage conversion ratio.

[0107] According to one embodiment, the operation of checking the information related to charging may include an operation of checking the information related to charging based on communication with the power source (190).

[0108] According to one embodiment, the operation of checking the information related to charging may include an operation of checking the information related to charging through universal serial bus (USB) power delivery (PD) communication with the power source (190), in the power delivery integrated circuit (PDIC) (160) of the electronic device (100). The operation of checking the information related to charging may include an operation of providing a first signal related to the information related to charging from the PDIC (160) to the controller (150) of the electronic device (100). The operation of checking the information related to charging may include an operation of checking the information related to charging, in the controller (150), based on the first signal.

[0109] According to one embodiment, the operation of checking the information related to charging may include an operation of checking the information related to charging based on the impedance of the cable (191) connected to the connector (110).

[0110] According to one embodiment, the operation of checking the information related to the charging is:

[0111] In the power delivery integrated circuit (PDIC) (160) of the electronic device (100), an operation of checking the impedance of the cable (191) connected to the connector (110) may be included. The operation of checking the information related to charging may include an operation of providing a second signal related to the impedance of the cable (191) from the PDIC (160) to the controller (150). The operation of checking the information related to charging may include an operation of checking the information related to charging based on the second signal in the controller (150).

[0112] According to one embodiment, a computer-readable recording medium storing instructions set to perform at least one operation by a controller (150) of an electronic device (100) may include an operation of checking information related to charging. The at least one operation may include an operation of checking a first voltage conversion ratio of a charging circuit (120) of the electronic device (100) based on the information related to charging. The at least one operation may include an operation of controlling the charging circuit (120) to convert power provided through a connector (110) of the electronic device (100) for connection with an external power source (190) based on the first voltage conversion ratio. The at least one operation may include an operation of checking a second voltage conversion ratio of the charging circuit (120) that is different from the first voltage conversion ratio while the battery (130) of the electronic device (100) is being charged based on the charging-related information based on the first voltage conversion ratio. The at least one operation may include an operation of controlling the charging circuit (120) to convert power provided through the connector (110) based on the second voltage conversion ratio.

[0113] According to one embodiment, the charging-related information may include at least one of information on the allowable current of a cable (191) connected to the connector (110) or information on an input current from the power source (190) to the electronic device (100).

[0114] According to one embodiment, the operation of checking the first voltage conversion ratio or the operation of checking the second voltage conversion ratio may include an operation of checking a charging current for charging the battery (130) based on the information related to the charging. The operation of checking the first voltage conversion ratio or the operation of checking the second voltage conversion ratio may include an operation of checking a charging loss of the electronic device (100) based on the charging current. The operation of checking the first voltage conversion ratio or the operation of checking the second voltage conversion ratio may include an operation of checking the first voltage conversion ratio or the second voltage conversion ratio based on the charging loss.

[0115] According to one embodiment, the operation of checking the second voltage conversion ratio may include an operation of checking an expected input current to be provided from the power source (190) based on the charging current while the battery (130) is being charged based on the first voltage conversion ratio. The operation of checking the second voltage conversion ratio may include an operation of determining to change the voltage conversion ratio of the charging circuit (120) from the first voltage conversion ratio to the second voltage conversion ratio by comparing the expected input current to be provided from the power source (190) with the allowable current of the cable (191).

[0116] According to one embodiment, the operation of checking the second voltage conversion ratio may include an operation of checking the second voltage conversion ratio when the expected input current to be provided from the power source (190) exceeds the allowable current. The operation of checking the second voltage conversion ratio may include an operation of performing at least one operation based on the second voltage conversion ratio based on the second voltage conversion ratio being less than or equal to a maximum voltage conversion ratio. The at least one operation may include an operation of checking whether the second voltage conversion ratio is supportable by the charging circuit (120) based on the second voltage conversion ratio being less than or equal to a maximum voltage conversion ratio. The at least one operation may include an operation of checking an input current (e.g., i1 of FIG. 1) based on the second voltage conversion ratio based on the second voltage conversion ratio being less than or equal to a maximum voltage conversion ratio. The at least one operation may include controlling the charging circuit (120) to convert power based on the second voltage conversion ratio, based on the second voltage conversion ratio being less than or equal to a maximum voltage conversion ratio.

[0117] In one embodiment, the operation of determining the second voltage conversion ratio may include an operation of reselecting the charging current when the second voltage conversion ratio exceeds the maximum voltage conversion ratio.

[0118] According to one embodiment, the operation of checking the information related to charging may include an operation of checking the information related to charging based on communication with the power source (190).

[0119] According to one embodiment, the operation of checking the information related to charging may include an operation of checking the information related to charging through universal serial bus (USB) power delivery (PD) communication with the power source (190), in the power delivery integrated circuit (PDIC) (160) of the electronic device (100). The operation of checking the information related to charging may include an operation of providing a first signal related to the information related to charging from the PDIC (160) to the controller (150) of the electronic device (100). The operation of checking the information related to charging may include an operation of checking the information related to charging, in the controller (150), based on the first signal.

[0120] According to one embodiment, the operation of checking the information related to charging may include an operation of checking the information related to charging based on the impedance of the cable (191) connected to the connector (110).

[0121] According to one embodiment, the operation of checking the information related to the charging is:

[0122] In the power delivery integrated circuit (PDIC) (160) of the electronic device (100), an operation of checking the impedance of the cable (191) connected to the connector (110) may be included. The operation of checking the information related to charging may include an operation of providing a second signal related to the impedance of the cable (191) from the PDIC (160) to the controller (150). The operation of checking the information related to charging may include an operation of checking the information related to charging based on the second signal in the controller (150).

[0123] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0124] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0125] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0126] Various embodiments of the present document may be implemented as software (e.g., a program) including one or more instructions stored on a storage medium that can be read by a machine (e.g., an electronic device). For example, a processor (e.g., a controller) of the machine may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and this term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily in the storage medium.

[0127] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as a computer program product. The computer program product may be traded between sellers and buyers as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or may be provided through an application store (e.g., Play Store). TM ) or directly between two user devices (e.g., smart phones), online distribution (e.g., downloading or uploading). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0128] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In an electronic device (100), Connector (110) for connection to an external power source (190); A charging circuit (120) set to convert power provided through the above connector (110); A battery (130) set to receive power through the above charging circuit (120); and A controller (150) operatively and / or electrically connected to the charging circuit (120) is included, The above controller (150) Check the information related to charging, Based on the information related to the above charging, the first voltage conversion ratio of the charging circuit (120) is checked, Based on the first voltage conversion ratio, the charging circuit (120) is controlled to convert the power provided through the connector (110), While the battery (130) is being charged based on the first voltage conversion ratio, a second voltage conversion ratio different from the first voltage conversion ratio of the charging circuit (120) is identified based on the information related to the charging, Based on the second voltage conversion ratio, the charging circuit (120) is set to be controlled to convert the power provided through the connector (110). Electronic devices (100).

2. In paragraph 1, The information related to the charging includes at least one of information on the allowable current of the cable (191) connected to the connector (110) or information on the input current from the power source (190) to the electronic device (100). Electronic devices (100).

3. In paragraph 1 or 2, The above controller (150) Based on the information related to the above charging, the charging current for charging the battery (130) is checked, Based on the above charging current, the charging loss of the electronic device (100) is checked, Based on the above charging loss, the first voltage conversion ratio or the second voltage conversion ratio is set to be determined. Electronic devices (100).

4. In any one of paragraphs 1 to 3, The above controller (150) While the battery (130) is being charged based on the first voltage conversion ratio, the expected input current to be provided from the power source (190) is checked based on the charging current, By comparing the expected input current to be provided from the power source (190) and the allowable current of the cable (191), it is determined to change the voltage conversion ratio of the charging circuit (120) from the first voltage conversion ratio to the second voltage conversion ratio. Electronic devices (100).

5. In any one of paragraphs 1 to 4, The above controller (150) As the expected input current to be provided from the power source (190) exceeds the allowable current, the second voltage conversion ratio is checked, Based on the second voltage conversion ratio being less than or equal to the maximum voltage conversion ratio, at least one operation is set to be performed based on the second voltage conversion ratio. Electronic devices (100).

6. In any one of paragraphs 1 to 5, The above controller (150) When the second voltage conversion ratio exceeds the maximum voltage conversion ratio, the charging current is set to be reselected. Electronic devices (100).

7. In any one of paragraphs 1 to 6, The above controller (150) Based on the communication with the above power source (190), it is set to check the information related to the charging. Electronic devices (100).

8. In any one of paragraphs 1 to 7, Further comprising a PDIC (power delivery integrated circuit) (160) operatively and / or electrically connected to the connector (110) and the controller (150), The above PDIC (160) is Check the information related to the charging through USB (universal serial bus) PD (power delivery) communication with the above power source (190), is set to provide a first signal regarding information related to the confirmed charging to the controller (150); The above controller (150) Set to check the information related to the charging based on the first signal, Electronic devices (100).

9. In any one of paragraphs 1 to 8, The above controller (150) Based on the impedance of the cable (191) connected to the above connector (110), the information related to the charging is set to be checked. Electronic devices (100).

10. In any one of paragraphs 1 to 9, Further comprising a PDIC (power delivery integrated circuit) (160) operatively and / or electrically connected to the connector (110) and the controller (150), The above PDIC (160) is Check the impedance of the cable (191) connected to the connector (110), It is set to provide a second signal regarding the impedance of the above cable (191) to the controller (150), The above controller (150) Set to check the information related to the charging based on the second signal. Electronic devices (100).

11. In the operating method of an electronic device (100), Actions to check information related to charging, and An operation of checking the first voltage conversion ratio of the charging circuit (120) of the electronic device (100) based on the information related to the above charging, An operation of controlling the charging circuit (120) to convert power provided through the connector (110) of the electronic device (100) for connection with an external power source (190) based on the first voltage conversion ratio; An operation of checking a second voltage conversion ratio different from the first voltage conversion ratio of the charging circuit (120) based on information related to the charging while the battery (130) of the electronic device (100) is being charged based on the first voltage conversion ratio; An operation of controlling the charging circuit (120) to convert power provided through the connector (110) based on the second voltage conversion ratio, method.

12. In paragraph 11, The information related to the charging includes at least one of information on the allowable current of the cable (191) connected to the connector (110) or information on the input current from the power source (190) to the electronic device (100). method.

13. In clause 11 or 12, The operation of checking the first voltage conversion ratio or the operation of checking the second voltage conversion ratio is, Based on the information related to the above charging, an operation of checking the charging current for charging the battery (130), An operation of checking the charging loss of the electronic device (100) based on the charging current; An operation of determining the first voltage conversion ratio or the second voltage conversion ratio based on the charging loss is included. method.

14. In any one of paragraphs 11 to 13, The operation of checking the above second voltage conversion ratio is: An operation of checking an expected input current to be provided from the power source (190) based on the charging current while the battery (130) is being charged based on the first voltage conversion ratio; An operation of determining to change the voltage conversion ratio of the charging circuit (120) from the first voltage conversion ratio to the second voltage conversion ratio by comparing the expected input current to be provided from the power source (190) and the allowable current of the cable (191), method.

15. In any one of paragraphs 11 to 14, The operation of checking the above second voltage conversion ratio is: An operation of checking the second voltage conversion ratio when the expected input current to be provided from the power source (190) exceeds the allowable current; An operation including performing at least one operation based on the second voltage conversion ratio, based on the second voltage conversion ratio being less than or equal to the maximum voltage conversion ratio. method.

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