WO2020171360A1

WO2020171360A1 - Electronic device comprising logic circuit for determining connection state of connector

Info

Publication number: WO2020171360A1
Application number: PCT/KR2019/017962
Authority: WO
Inventors: 김승훈; 신인호; 김범문
Original assignee: 삼성전자 주식회사
Priority date: 2019-02-21
Filing date: 2019-12-18
Publication date: 2020-08-27
Also published as: KR102627633B1; KR20200102256A

Abstract

The present invention is an electronic device comprising a logic circuit for determining a connection state of a connector, the electronic device comprising: a housing; a battery positioned inside the housing; a first printed circuit board comprising a first connector, a power management circuit, a load switch, a first pull-up resistor, a second pull-up resistor and the logic circuit; a second printed circuit board comprising a second connector and a ground layer; and an electrical path electrically connected between the first connector and the second connector, and thus the present invention eliminates risk factors which can occur because of the contact between a power pin and adjacent pins, thereby preventing damage to an electronic component.

Description

Electronic device including a logic circuit for determining a connection state of a connector

Various embodiments of the present invention relate to an electronic device including a logic circuit for determining a connection state of a connector.

As the use of portable electronic devices such as smart phones and tablet PCs increases, various functions are provided to electronic devices.

The electronic device may include at least one or more printed circuit boards (PCBs) and at least one or more connectors to provide various functions.

The electronic device may connect a plurality of printed circuit boards on which various electronic components are each mounted using a connector, and transmit and receive signals or data.

When a plurality of printed circuit boards are connected using a connector while the electronic device is on, the power pin and the adjacent pin may be abnormally connected.

In this case, when power applied to the power pin is applied to an adjacent pin (eg, a signal pin or a ground pin), a component connected to the adjacent pin may be damaged due to overvoltage or overcurrent.

Various embodiments of the present invention, when connecting a plurality of printed circuit boards included in an electronic device using a connector, can prevent damage to electronic components by removing risk factors that may occur due to contact between power pins and adjacent pins. It is possible to provide an electronic device including a logic circuit for determining a connection state of a connector.

An electronic device according to various embodiments of the present disclosure includes: a housing; A battery located inside the housing; A first printed circuit board located inside the housing, comprising: a first connector including a first pin and a second pin; A power management circuit electrically connected to the battery; A load switch including a first input terminal electrically connected to the power management circuit, a first output terminal electrically connected to the first connector, and an enable input terminal; A first pull-up resistor including a first terminal electrically connected to the battery and a second terminal electrically connected to the first pin; A second pull-up resistor including a third terminal electrically connected to the power management circuit and a fourth terminal electrically connected to the second pin; And a logic circuit including a second input terminal electrically connected to the second terminal, a third input terminal electrically connected to the fourth terminal, and a second output terminal electrically connected to the enable input terminal. 1 printed circuit board; A second printed circuit board located inside the housing and spaced apart from the first printed circuit board, the second connector including a third pin and a fourth pin; And a second printed circuit board including a ground layer electrically connected to the third pin and the fourth pin. And an electrical path electrically connected between the first connector and the second connector.

An electronic device according to various embodiments of the present disclosure includes: a housing; A battery located inside the housing; A first printed circuit board located inside the housing, comprising: a power management circuit electrically connected to the battery; A first connector including a first pin to which constant power output from the power management circuit is applied; A load switch including an input terminal electrically connected to the power management circuit, an output terminal electrically connected to the first connector, and an enable input terminal; And a first printed circuit board including a pull-up resistor including a first terminal and a second terminal electrically connected to the second pin of the first connector. A second printed circuit board disposed inside the housing, spaced apart from the first printed circuit board, and including a second connector including a third pin and a fourth pin electrically connected; And an electrical path electrically connected between the first connector and the second connector.

An electronic device according to various embodiments of the present disclosure includes: a housing; A battery located inside the housing; A first printed circuit board located inside the housing, comprising: a power management circuit electrically connected to the battery; A first connector including a first pin to which constant power output from the power management circuit is applied; A load switch including an input terminal electrically connected to the power management circuit, an output terminal electrically connected to the first connector, and an enable input terminal; Ground layer; And a pull-down resistor including a first terminal electrically connected to the second pin of the first connector and the enable terminal, and a second terminal electrically connected to the ground layer. A second printed circuit board disposed inside the housing, spaced apart from the first printed circuit board, and including a second connector including a third pin and a fourth pin electrically connected; And an electrical path electrically connected between the first connector and the second connector.

According to various embodiments of the present invention, when a plurality of printed circuit boards included in an electronic device are connected using a connector, power is applied according to whether the connector is normally connected or abnormally connected using a logic circuit. Alternatively, by blocking, a risk factor that may occur due to contact between the power pin and adjacent pins can be removed, and thus damage to the electronic component can be prevented.

1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure.

2 is a block diagram of a power management module and a battery according to various embodiments of the present disclosure.

3 is a block diagram schematically illustrating a configuration of an example of an electronic device according to various embodiments of the present disclosure.

4 is a flowchart illustrating a method of determining a connection state of a connector using a logic circuit of an electronic device according to various embodiments of the present disclosure.

5 is a block diagram schematically illustrating a configuration of another example of an electronic device according to various embodiments of the present disclosure.

6 is a block diagram schematically illustrating a configuration of another example of an electronic device according to various embodiments of the present disclosure.

7 is a block diagram schematically illustrating a configuration of another example of an electronic device according to various embodiments of the present disclosure.

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments. Referring to FIG. 1, in a network environment 100, the electronic device 101 communicates with the electronic device 102 through a first network 198 (for example, a short-range wireless communication network), or a second network 199 It is possible to communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108. According to an embodiment, the electronic device 101 includes a processor 120, a memory 130, an input device 150, an audio output device 155, a display device 160, an audio module 170, and a sensor module ( 176, interface 177, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196, or antenna module 197 ) Can be included. In some embodiments, at least one of these components (for example, the display device 160 or the camera module 180) may be omitted or one or more other components may be added to the electronic device 101. In some embodiments, some of these components may be implemented as one integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (eg, a program 140) to implement at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and can perform various data processing or operations. According to an embodiment, as at least part of data processing or operation, the processor 120 may store commands or data received from other components (eg, the sensor module 176 or the communication module 190) to the volatile memory 132 The command or data stored in the volatile memory 132 may be processed, and result data may be stored in the nonvolatile memory 134. According to an embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and a secondary processor 123 (eg, a graphics processing unit, an image signal processor) that can be operated independently or together with the main processor 121 (eg, a central processing unit or an application processor). , A sensor hub processor, or a communication processor). Additionally or alternatively, the coprocessor 123 may be set to use lower power than the main processor 121 or to be specialized for a designated function. The secondary processor 123 may be implemented separately from the main processor 121 or as a part thereof.

The coprocessor 123 is, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, an application is executed). ) While in the state, together with the main processor 121, at least one of the components of the electronic device 101 (for example, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the functions or states related to. According to an embodiment, the coprocessor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). have.

The memory 130 may store various data used by at least one component of the electronic device 101 (eg, the processor 120 or the sensor module 176). The data may include, for example, software (eg, the program 140) and input data or output data for commands related thereto. The memory 130 may include a volatile memory 132 or a nonvolatile memory 134.

The program 140 may be stored as software in the memory 130, and may include, for example, an operating system 142, middleware 144, or an application 146.

The input device 150 may receive a command or data to be used for a component of the electronic device 101 (eg, the processor 120) from an outside (eg, a user) of the electronic device 101. The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).

The sound output device 155 may output an sound signal to the outside of the electronic device 101. The sound output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.

The display device 160 may visually provide information to the outside of the electronic device 101 (eg, a user). The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device. According to an embodiment, the display device 160 may include a touch circuitry set to sense a touch, or a sensor circuit (eg, a pressure sensor) set to measure the strength of a force generated by the touch. have.

The audio module 170 may convert sound into an electric signal or, conversely, convert an electric signal into sound. According to an embodiment, the audio module 170 acquires sound through the input device 150, the sound output device 155, or an external electronic device directly or wirelessly connected to the electronic device 101 (for example, Sound may be output through the electronic device 102) (for example, a speaker or headphones).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101, or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do. According to an embodiment, the sensor module 176 is, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more designated protocols that may be used for the electronic device 101 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ). According to an embodiment, the connection terminal 178 may include, for example, a pogo connector, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that a user can perceive through a tactile or motor sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture a still image and a video. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101. According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101. According to an embodiment, the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, electronic device 102, electronic device 104, or server 108). It is possible to support establishment and communication through the established communication channel. The communication module 190 operates independently of the processor 120 (eg, an application processor), and may include one or more communication processors that support direct (eg, wired) communication or wireless communication. According to an embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg : A LAN (local area network) communication module, or a power line communication module) may be included. Among these communication modules, a corresponding communication module is a first network 198 (for example, a short-range communication network such as Bluetooth, WiFi direct or IrDA (infrared data association)) or a second network 199 (for example, a cellular network, the Internet, or It can communicate with external electronic devices through a computer network (for example, a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into one component (eg, a single chip), or may be implemented as a plurality of separate components (eg, multiple chips). The wireless communication module 192 uses subscriber information stored in the subscriber identification module 196 (eg, International Mobile Subscriber Identifier (IMSI)) within a communication network such as the first network 198 or the second network 199. The electronic device 101 can be checked and authenticated.

The antenna module 197 may transmit a signal or power to the outside (eg, an external electronic device) or receive from the outside. According to an embodiment, the antenna module may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is, for example, provided by the communication module 190 from the plurality of antennas. Can be chosen. The signal or power may be transmitted or received between the communication module 190 and an external electronic device through the at least one selected antenna. According to some embodiments, other components (eg, RFIC) other than the radiator may be additionally formed as part of the antenna module 197.

At least some of the components are connected to each other through a communication method (e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI))) between peripheral devices and signals ( E.g. commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199. Each of the

electronic devices

102 and 104 may be a device of the same or different type as the electronic device 101. According to an embodiment, all or part of the operations executed by the electronic device 101 may be executed by one or more of the external

electronic devices

102, 104, or 108. For example, when the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device 101 does not execute the function or service by itself. In addition or in addition, it is possible to request one or more external electronic devices to perform the function or at least part of the service. One or more external electronic devices receiving the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit the execution result to the electronic device 101. The electronic device 101 may process the result as it is or additionally and provide it as at least part of a response to the request. For this purpose, for example, cloud computing, distributed computing, or client-server computing technology Can be used.

2 is a block diagram 200 of a power management module 188 and a battery 189 according to various embodiments.

Referring to FIG. 2, the power management module 188 may include a charging circuit 210, a power regulator 220, or a power gauge 230. The charging circuit 210 may charge the battery 189 by using power supplied from an external power source for the electronic device 101. According to an embodiment, the charging circuit 210 includes the type of external power (eg, power adapter, USB or wireless charging), the amount of power that can be supplied from the external power source (eg, about 20 watts or more), or the battery 189 A charging method (eg, normal charging or rapid charging) may be selected based on at least some of the properties of ), and the battery 189 may be charged using the selected charging method. The external power source may be wired to the electronic device 101, for example, through the connection terminal 178, or may be wirelessly connected through the antenna module 197.

The power regulator 220 may generate a plurality of powers having different voltages or different current levels, for example, by adjusting the voltage level or current level of the power supplied from the external power source or the battery 189. The power regulator 220 may adjust the power of the external power source or the battery 189 to a voltage or current level suitable for each of some of the components included in the electronic device 101. According to an embodiment, the power regulator 220 may be implemented in the form of a low drop out (LDO) regulator or a switching regulator. The power gauge 230 may measure usage state information about the battery 189 (eg, capacity of the battery 189, the number of times of charging and discharging, voltage, or temperature).

The power management module 188, for example, using the charging circuit 210, the voltage regulator 220, or the power gauge 230, based at least in part on the measured usage state information of the battery 189 Charge state information related to charging (eg, life, overvoltage, undervoltage, overcurrent, overcharge, over discharge, overheat, short circuit, or swelling) can be determined. The power management module 188 may determine whether the battery 189 is normal or abnormal based at least in part on the determined charge state information. When it is determined that the state of the battery 189 is abnormal, the power management module 188 may adjust the charging of the battery 189 (eg, decrease charging current or voltage, or stop charging). According to an embodiment, at least some of the functions of the power management module 188 may be performed by an external control device (eg, the processor 120 ).

The battery 189 may include a battery protection circuit module (PCM) 240 according to an embodiment. The battery protection circuit 240 may perform one or more of various functions (eg, a pre-blocking function) for preventing performance degradation or burnout of the battery 189. The battery protection circuit 240 may additionally or alternatively be a battery management system capable of performing various functions including cell balancing, battery capacity measurement, charging/discharging frequency measurement, temperature measurement, or voltage measurement. BMS)).

According to an embodiment, at least a part of the usage state information or the charge state information of the battery 189 is a corresponding sensor (eg, a temperature sensor), a power gauge 230, or a power management module among the sensor modules 176 It can be measured using (188). According to an embodiment, the corresponding sensor (for example, a temperature sensor) among the sensor modules 176 is included as a part of the battery protection circuit 240, or as a separate device to be disposed near the battery 189. I can.

Electronic devices according to various embodiments disclosed in this document may be devices of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

Various embodiments of the present document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutes of the corresponding 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 a plurality of the items unless clearly indicated otherwise in a related context. In this document, “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 “A Each of phrases such as "at least one of, B, or C" may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish the component from other corresponding components, and the components may be referred to in other aspects (eg, importance or Order) is not limited. Some (eg, a first) component is referred to as “coupled” or “connected” with or without the terms “functionally” or “communicatively” to another (eg, second) component. When mentioned, it means that any of the above components can be connected to the other components directly (eg by wire), wirelessly, or via a third component.

The term "module" used in this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic blocks, parts, or circuits. The module may be an integrally configured component or a minimum unit of the component or a part thereof that performs one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). It may be implemented as software (for example, the program 140) including them. For example, the processor (eg, the processor 120) of the device (eg, the electronic device 101) may call and execute at least one command among one or more commands stored from a storage medium. This makes it possible for the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here,'non-transient' only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and this term refers to a case where data is semi-permanently stored It does not distinguish between temporary storage cases.

According to an embodiment, a method according to various embodiments disclosed in the present document may be included in a computer program product and provided. Computer program products can be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a device-readable storage medium (e.g. compact disc read only memory (CD-ROM)), or through an application store (e.g. Play Store ^TM ) or two user devices ( It can be distributed (e.g., downloaded or uploaded) directly between, e.g. smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a storage medium that can be read by a device such as a server of a manufacturer, a server of an application store, or a memory of a relay server.

According to various embodiments, each component (eg, module or program) of the above-described components may include a singular number or a plurality of entities. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or a program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components in the same or similar to that performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component are sequentially, parallel, repeatedly, or heuristically executed, or one or more of the above operations are executed in a different order or omitted. Or one or more other actions may be added.

Referring to FIG. 3, an electronic device 300 (eg, the electronic device 101 of FIG. 1) according to various embodiments of the present disclosure includes a housing 301 and a battery 305 (eg, a battery of FIG. 1 ). 189)), a first printed circuit board 310, a first connector 315, a power management circuit 320 (eg, the power management module 188 in FIG. 1), a load switch 330, a first pull-up resistor 340, a second pull-up resistor 350, a logic circuit 360, a processor 370 (for example, the processor 120 of FIG. 1), a second printed circuit board 380, a second connector 385, and /Or an electrical path 390 may be included.

According to an embodiment, the housing 301 may form the exterior of the electronic device 300. The housing 301 may include a space in which at least one or more components can be disposed.

According to various embodiments, in the inner space of the housing 301, a battery 305, a first printed circuit board 310, a first connector 315, a power management circuit 320, a load switch 330, First pull-up resistor 340, second pull-up resistor 350, logic circuit 360, processor 370, second printed circuit board 380, second connector 385 and/or electrical path 390 Can be configured.

According to an embodiment, the battery 305 may be located inside the housing 301. The battery 305 may supply power to the electronic device 300 when the electronic device 300 is powered on/off.

According to various embodiments, the battery 305 may supply power to at least one component of the electronic device 300. The battery 305 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell. At least a portion of the battery 305 may be disposed substantially on the same plane as the first printed circuit board 310. The battery 305 may at least partially overlap the first printed circuit board 310. The battery 305 may be integrally disposed inside the electronic device 300. The battery 305 may be disposed detachably from the electronic device 300.

According to an embodiment, the first printed circuit board 310 may be located inside the housing 301. The first printed circuit board 310 may include a printed board assembly (PBA).

According to various embodiments, the first printed circuit board 310 includes a first connector 315, a power management circuit 320, a load switch 330, a first pull-up resistor 340, and a second pull-up resistor 350. ), a logic circuit 360 and/or a processor 370 may be included.

According to an embodiment, the first connector 315 may include a first pin 311 and a second pin 312. The first pin 311 may be connected to the first pull-up resistor 340 connected to the battery 305. The second pin 312 may be connected to the second pull-up resistor 350 connected to the power management circuit 320.

According to an embodiment, the power management circuit 320 may be electrically connected to the battery 305. The power management circuit 320 may supply power to the electronic device 300 when the electronic device 300 is powered on.

According to various embodiments, the power management circuit 320 may manage power supplied to the electronic device 300. When the power of the electronic device 300 is turned on, the power management circuit 320 reduces the power of the battery 305 to other components (for example, the load switch 330, the logic circuit 360, and the processor 370 ). ) Can be supplied. The power management circuit 320 may receive a command from the processor 370, for example, and manage power supply in response to the command.

According to an embodiment, the load switch 330 may serve to supply or cut off power applied from the power management circuit 320. The load switch 330 includes a first input terminal 331 electrically connected to the power management circuit 320, a first output terminal 333 electrically connected to the first connector 315, and an enable input terminal 335 It may include.

According to various embodiments, when both the second input terminal 362 and the third input terminal 363 of the logic circuit 360 are in a low state, the enable input terminal 335 A high signal output through the second output terminal 365 of) may be input. The load switch 330 may apply power from the battery 305 to the first connector 315 only when a high signal is input through the enable input terminal 335.

According to an embodiment, the first pull-up resistor 340 and the second pull-up resistor 350 may control current when connected to the ground. Each of the first pull-up resistor 340 and the second pull-up resistor 350 may have a range of 100Kohm to 1Mohm. A signal output through the first pull-up resistor 340 and the second pull-up resistor 350 may be used as an input of the logic circuit 360.

According to various embodiments, the first pull-up resistor 340 is a first terminal 341 electrically connected to the battery 305 and a second terminal electrically connected to the first pin 311 of the first connector 315 (342) may be included.

According to various embodiments, the second pull-up resistor 350 is a third terminal 351 electrically connected to the power management circuit 320 and a second pin 312 electrically connected to the second pin 312 of the first connector 315. It may include four terminals 352.

According to an embodiment, the logic circuit 360 may determine whether the first connector 315 and the second connector 385 are normally connected through the electrical path 390.

According to various embodiments, the logic circuit 360 includes a second input terminal 362 electrically connected to the second terminal 342 of the first pull-up resistor 340 and the second pull-up resistor 350. 4. A third input terminal 363 electrically connected to the terminal 352, and a second output terminal 365 electrically connected to the enable input terminal 335 of the load switch 330.

According to various embodiments, the logic circuit 360 passes through the second output terminal 365 only when a low signal is received from the second input terminal 362 and the third input terminal 363, respectively. A high signal may be output to the enable input terminal 335 of the load switch 330.

According to various embodiments, when the logic circuit 360 receives a high signal from the second input terminal 362 and receives a high signal from the third input terminal 363, the second A low signal may be output to the enable input terminal 335 of the load switch 330 through the output terminal 365.

According to various embodiments, when the logic circuit 360 receives a low signal from the second input terminal 362 and receives a high signal from the third input terminal 363, the second A low signal may be output to the enable input terminal 335 of the load switch 330 through the output terminal 365.

According to various embodiments, when the logic circuit 360 receives a high signal from the second input terminal 362 and receives a low signal from the third input terminal 363, the second A low signal may be output to the enable input terminal 335 of the load switch 330 through the output terminal 365.

According to an embodiment, the processor 370 may be electrically connected to the second output terminal 365 of the logic circuit 360. For example, the processor 370 may be electrically connected to the second output terminal 365 through a general purpose input/output (GPIO) port 375. In the processor 370, the first connector 315 and the second connector 385 are electrically connected according to a high or low signal output through the second output terminal 365 of the logic circuit 360. It may be determined whether the connection is normally or abnormally connected through the path 390. The processor 370 may be set to provide status information on whether the first connector 315 and the second connector 385 are connected to the user.

According to various embodiments, the processor 370 determines whether the first connector 315 and the second connector 385 are normally connected or abnormally connected through the electrical path 390, for example, a display. (For example, the display device 160 of FIG. 1 may be displayed through a user interface (for example, a pop-up). The processor 370 determines whether the first connector 315 and the second connector 385 are normally connected or abnormally connected through the electrical path 390, for example, an audio output unit (eg, FIG. 1 ). Sound can be output through the sound output device 155 of.

According to various embodiments, the processor 370 may perform a data processing function of controlling an overall operation of the electronic device 300 and a signal flow between internal blocks of the electronic device 300 and processing data. The processor 370 may include, for example, at least one of a central processing unit (CPU), an application processor, and a communication processor. The processor 370 may be configured as a single core processor or a multi-core processor.

According to an embodiment, the second printed circuit board 380 may be located inside the housing 301. The second printed circuit board 380 may be spaced apart from the first printed circuit board 310. The second printed circuit board 380 may include a printed board assembly (PBA). According to various embodiments, the first printed circuit board 310 and the second printed circuit board 380 are not spaced apart from each other and may be integrally configured.

According to various embodiments, the second printed circuit board 380 may include a second connector 385 and a ground layer 387.

According to an embodiment, the second connector 385 may include a third pin 383 and a fourth pin 384. The third pin 383 and the fourth pin 384 may be electrically connected to the ground layer 387.

According to an embodiment, the second printed circuit board 380 may include at least one of an interface connector 381 and an audio amplifier 382.

According to various embodiments, the interface connector 381 (for example, the connection terminal 178 in FIG. 1) connects the electronic device 300 to an external electronic device (for example, earphone, auxiliary speaker, docking station, TV, etc.). Can be physically connected. The interface connector 381 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, an ear jack interface, and/or an audio interface. The interface connector 381 is, for example, a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port for connecting a device equipped with an identification module, and audio. It may further include an input/output port, a video input/output port, and/or an earphone port.

According to various embodiments, the audio amplifier 382 may convert sound into electric signals or convert electric signals into sound. The audio amplifier 382 may acquire sound through an input device (for example, the input device 150 of FIG. 1 ), or may output sound through a speaker or headphones.

According to an embodiment, the electrical path 390 may electrically connect the first connector 315 and the second connector 385. The electrical path 390 may include at least one of a flexible printed circuit board (FPCB) or a pogo connector.

According to one embodiment, using the electrical path 390, the first pin 311 of the first connector 315 and the third pin 383 of the second connector 385 are electrically connected to each other, The second pin 312 of the first connector 315 and the fourth pin 384 of the second connector 385 may be electrically connected to each other.

According to various embodiments, when the first connector 315 and the second connector 385 are normally connected by using the electrical path 390, the logic circuit 360 is the second input terminal 362 and the third input. A low signal is received from the first pull-up resistor 340 and the second pull-up resistor 350 through the terminal 363, and an enable input of the load switch 330 through the second output terminal 365 By outputting a high signal to the terminal 335, power from the battery 305 can be normally supplied to the first connector 315 and the second connector 385.

According to various embodiments, when the first connector 315 and the second connector 385 are abnormally connected using the electrical path 390, the logic circuit 360 and the load switch 330 are low. Since a signal is output, power of the battery 305 may not be supplied to the first connector 315.

4 is a flowchart 400 illustrating a method of determining a connection state of a connector using a logic circuit of an electronic device according to various embodiments of the present disclosure.

Operations 410 to 450 of FIG. 4 may be performed, for example, by the electronic device 300 of FIG. 3. Hereinafter, components of FIGS. 1 to 3 may be used for descriptions of operations 410 to 450.

In operation 410, the user of the electronic device 300 may connect the first connector 315 and the second connector 385 using an electrical path 390 (eg, an FPCB or a pogo connector).

In operation 420, the processor 370 may determine whether a low signal is input to both the second input terminal 362 and the third input terminal 363 of the logic circuit 360.

According to various embodiments, when low signals are input to both the second input terminal 362 and the third input terminal 363 of the logic circuit 360, the processor 370 It may be determined that the second connector 385 is normally connected using the electrical path 390.

According to various embodiments, the processor 370 uses the electrical path 390 to electrically connect the first pin 311 of the first connector 315 and the third pin 383 of the second connector 385 to each other. And the second pin 312 of the first connector 315 and the fourth pin 384 of the second connector 385 are electrically connected to each other may be determined as a normal connection state.

In operation 425, since a low signal is not input to both the second input terminal 362 and the third input terminal 363 of the logic circuit 360, the first connector 315 and the second connector 385 ) Is not normally connected, the processor 370 displays, for example, a user interface indicating abnormal connection between the first connector 315 and the second connector 385 (eg, FIG. 1 ). By displaying on the display device 160 of or outputting sound through an audio output unit (for example, the sound output device 155 of FIG. 1), the user of the electronic device 300 It may support to connect the second connector 385 normally.

According to various embodiments, when the first connector 315 and the second connector 385 are not normally connected using the electrical path 390, the logic circuit 360 and the load switch 330 are low. Since a signal is output, power of the battery 305 may not be supplied to the first connector 315.

In operation 430, a low signal is input to both the second input terminal 362 and the third input terminal 363 of the logic circuit 360, so that the first connector 315 and the second connector 385 When it is determined that is normally connected, the logic circuit 360 may output a high signal to the enable input terminal 335 of the load switch 330 through the second output terminal 365.

In operation 440, as a high signal is output to the enable input terminal 335 of the load switch 330, power of the battery 305 may be normally supplied to the first connector 315.

In operation 450, when power is supplied to the first connector 315, the processor 370 informs, for example, a normal connection of the first connector 315 and the second connector 385. May be displayed on a display (eg, the display device 160 of FIG. 1) or may be output as sound through an audio output unit (eg, the sound output device 155 of FIG. 1 ).

In the description of FIG. 5, redundant descriptions of the same configurations and functions as those of the embodiment of FIG. 3 may be omitted.

Referring to FIG. 5, an electronic device 500 (eg, the electronic device 101 of FIG. 1) according to various embodiments of the present disclosure includes a housing 501 and a battery 505 (eg, a battery of FIG. 1 ). 189)), a first printed circuit board 510, a first connector 515, a processor 520 (e.g., the processor 120 of FIG. 1), a load switch 530, a pull-up resistor 540, a logic circuit 560, a second printed circuit board 580, a second connector 585, and/or an electrical path 590.

According to an embodiment, the housing 501 may form the exterior of the electronic device 500. The housing 501 may include a space in which at least one or more components can be disposed.

According to an embodiment, the battery 505 may be located inside the housing 501. The battery 505 may supply power to the electronic device 500 when the electronic device 500 is powered on/off.

According to an embodiment, the first printed circuit board 510 may be located inside the housing 501.

According to various embodiments, the first printed circuit board 510 may include a first connector 515, a processor 520, a load switch 530, a pull-up resistor 540 and/or a logic circuit 560. I can.

According to an embodiment, the first connector 515 may include a first pin 511 and a second pin 512. The first pin 511 may be connected to the pull-up resistor 540 connected to the battery 305. The second pin 512 may be connected to the processor 520.

According to an embodiment, the processor 520 may be electrically connected to the battery 505 to perform a function of the power management circuit 320 shown in FIG. 3.

According to various embodiments, the processor 520 may manage power supplied to the electronic device 500. When the power of the electronic device 500 is turned on, the processor 520 may supply power of the battery 505 to other components (eg, the load switch 530 and the logic circuit 560 ).

According to various embodiments, the processor 520 may be electrically connected to the third input terminal 563 and the second output terminal 565 of the logic circuit 560. For example, the processor 520 may be electrically connected to the third input terminal 563 and the second output terminal 565 of the logic circuit 560 through a general purpose input/output (GPIO) port 525. have. In the processor 520, the first connector 515 and the second connector 585 are electrically connected according to a high or low signal input through the second output terminal 565 of the logic circuit 560. It may be determined whether or not it is connected normally or abnormally through the path 590. The processor 520 may be set to provide status information on whether the first connector 515 and the second connector 585 are connected to the user.

According to various embodiments, the processor 520 displays whether the first connector 515 and the second connector 585 are normally connected or abnormally connected through the electrical path 590, for example, (E.g., display through a user interface (e.g., a pop-up) on the display device 160 of FIG. 1), or through a sound output unit (e.g., the sound output device 155 of FIG. Can be printed.

According to an embodiment, the load switch 530 may serve to supply or cut off power applied from the battery 505. The load switch 530 may include a first input terminal 531 electrically connected to the battery 505, a first output terminal 533 electrically connected to the first connector 515, and an enable input terminal 535. I can.

According to various embodiments, when both the second input terminal 562 and the third input terminal 563 of the logic circuit 560 are in a low state, the enable input terminal 535 is A high signal output through the second output terminal 565 of) may be input. The load switch 530 may apply power of the battery 505 to the first connector 515 only when a high signal is input through the enable input terminal 535.

According to an embodiment, the pull-up resistor 540 may control current when connected to ground. The pull-up resistor 540 may have a range of 100Kohm to 1Mohm. A signal output through the pull-up resistor 540 may be used as an input to the logic circuit 560.

According to various embodiments, the pull-up resistor 540 includes a first terminal 541 electrically connected to the battery 505 and a second terminal 542 electrically connected to the first pin 511 of the first connector 515. ) Can be included.

According to an embodiment, the logic circuit 560 may determine whether the first connector 515 and the second connector 585 are normally connected through the electrical path 590.

According to various embodiments, the logic circuit 560 includes a second input terminal 562 electrically connected to the second terminal 542 of the pull-up resistor 540 and a third input terminal electrically connected to the processor 520. 563 and a second output terminal 565 electrically connected to the enable input terminal 535 of the load switch 530.

According to various embodiments, the logic circuit 560 only when receiving a low signal from the second input terminal 562 and the third input terminal 563, respectively, through the second output terminal 565. A high signal may be output to the enable input terminal 535 of the load switch 530.

According to various embodiments, when the logic circuit 560 receives a high signal from the second input terminal 562 and receives a high signal from the third input terminal 563, the second A low signal may be output to the enable input terminal 535 of the load switch 530 through the output terminal 565.

According to various embodiments, when the logic circuit 560 receives a low signal from the second input terminal 562 and a high signal from the third input terminal 563, the second A low signal may be output to the enable input terminal 335 of the load switch 530 through the output terminal 565.

According to various embodiments, when the logic circuit 560 receives a high signal from the second input terminal 562 and a low signal from the third input terminal 563, the second A low signal may be output to the enable input terminal 535 of the load switch 530 through the output terminal 565.

According to an embodiment, the second printed circuit board 580 may be located inside the housing 501. The second printed circuit board 580 may be positioned to be spaced apart from the first printed circuit board 510. According to various embodiments, the first printed circuit board 510 and the second printed circuit board 580 are not spaced apart from each other and may be integrally configured.

According to various embodiments, the second printed circuit board 580 may include a second connector 585 and a ground layer 587.

According to an embodiment, the second connector 585 may include a third pin 583 and a fourth pin 584. The third pin 583 and the fourth pin 584 may be electrically connected to the ground layer 587.

According to an embodiment, the second printed circuit board 580 may include at least one of an interface connector 581 and an audio amplifier 582.

According to an embodiment, the electrical path 590 may electrically connect the first connector 515 and the second connector 585. The electrical path 590 may include at least one of a flexible printed circuit board (FPCB) or a pogo connector.

According to one embodiment, using the electrical path 590, the first pin 511 of the first connector 515 and the third pin 583 of the second connector 585 are electrically connected to each other, The second pin 512 of the first connector 515 and the fourth pin 584 of the second connector 585 may be electrically connected to each other.

According to various embodiments, when the first connector 515 and the second connector 585 are normally connected using the electrical path 590, the logic circuit 560 is the second input terminal 562 and the third input. A low signal is received from the pull-up resistor 540 and the processor 520 through the terminal 563, and the enable input terminal 535 of the load switch 530 is received through the second output terminal 565. By outputting a high signal, power of the battery 505 can be normally supplied to the first connector 515 and the second connector 585.

According to various embodiments, when the first connector 515 and the second connector 585 are abnormally connected using the electrical path 590, the logic circuit 560 and the load switch 530 are low. Since a signal is output, power of the battery 505 may not be supplied to the first connector 515.

In the description of FIG. 6, redundant descriptions of the same configurations and functions as those of the embodiment of FIG. 3 and the embodiment of FIG. 5 may be omitted.

Referring to FIG. 6, an electronic device 600 (eg, the electronic device 101 of FIG. 1) according to various embodiments of the present disclosure includes a housing 601 and a battery 605 (eg, a battery of FIG. 1 ). 189)), a first printed circuit board 610, a first connector 615, a power management circuit 620 (for example, the power management module 188 in FIG. 1), a load switch 630, a pull-up resistor 640 ), a processor 670 (for example, the processor 120 of FIG. 1 ), a second printed circuit board 680, a second connector 685 and/or an electrical path 690.

According to an embodiment, the housing 601 may form the exterior of the electronic device 600. The housing 601 may include a space in which at least one or more components can be disposed.

According to an embodiment, the battery 605 may be located inside the housing 601. The battery 605 may supply power to the electronic device 600 when the electronic device 600 is powered on/off.

According to an embodiment, the first printed circuit board 610 may be located inside the housing 601.

According to various embodiments, the first printed circuit board 610 includes a first connector 615, a power management circuit 620, a load switch 630, a pull-up resistor 640, and/or a processor 670. Can include.

According to an embodiment, the first connector 615 may include a first pin 611 and a second pin 612. The first pin 611 may receive low voltage and low power constant power output from the power management circuit 620. The second pin 612 may be connected to the pull-up resistor 640.

According to various embodiments, the constant power supply may be a voltage that does not exceed about 15% of the reference voltage of the battery. For example, when the first connector 615 includes a general purpose input/output (GPIO) of about 1.8V, the constant power supply is a voltage that does not exceed absolute maximum ratings, for example A voltage not exceeding about 2.09V can be used. Further, when the first connector 615 includes a GPIO of about 2.8V, the constant power may use a voltage that does not exceed a maximum rated value, for example, a voltage that does not exceed about 3.1V.

According to an embodiment, the power management circuit 620 may be electrically connected to the battery 605. The power management circuit 620 may manage power supplied to the electronic device 600. When power of the electronic device 600 is turned on, the power management circuit 620 may supply power of the battery 605 to other components (eg, the load switch 630 and the processor 670 ). The power management circuit 620 may receive, for example, a command from the processor 670 and manage power supply in response to the command.

According to an embodiment, the load switch 630 may serve to supply or cut off power applied from the power management circuit 620. The load switch 630 may include an input terminal 631 electrically connected to the power management circuit 620, an output terminal 633 electrically connected to the first connector 615, and an enable input terminal 635. .

According to various embodiments, the load switch 630 can apply the power of the battery 605 to the first connector 615 only when a high signal is input through the enable input terminal 635. have.

According to an embodiment, the pull-up resistor 640 may control current when connected to the ground. The pull-up resistor 640 may have a range of 100Kohm to 1Mohm. A signal output through the pull-up resistor 640 may be used as an input of the load switch 630.

According to various embodiments, the pull-up resistor 640 includes a first terminal 641 electrically connected to the second pin 612 of the first connector 615 and an enable input terminal 635 of the load switch 630 It may include a second terminal 642 electrically connected to.

According to an embodiment, the processor 670 may be electrically connected to the enable input terminal 635 of the load switch 630. For example, the processor 670 may be electrically connected to the enable input terminal 635 through a general purpose input/output (GPIO) port 675. In the processor 670, according to a high or low signal input through the enable input terminal 635 of the load switch 630, the first connector 615 and the second connector 685 are electrically It may be determined whether the connection is normally or abnormally connected through the path 690. The processor 670 may be set to provide the user with status information on whether the first connector 615 and the second connector 685 are connected.

According to various embodiments, the processor 670 displays whether the first connector 615 and the second connector 685 are normally connected or abnormally connected through the electrical path 690, for example, (E.g., display through a user interface (e.g., a pop-up) on the display device 160 of FIG. 1), or through a sound output unit (e.g., the sound output device 155 of FIG. 1) Can be printed.

According to an embodiment, the second printed circuit board 680 may be located inside the housing 601. The second printed circuit board 680 may be positioned to be spaced apart from the first printed circuit board 610. According to various embodiments, the first printed circuit board 610 and the second printed circuit board 680 are not spaced apart from each other and may be integrally configured.

According to various embodiments, the second printed circuit board 680 may include a second connector 685.

According to an embodiment, the second connector 685 may include a third pin 683 and a fourth pin 684. The third pin 683 and the fourth pin 684 may be electrically connected. The third pin 683 and the fourth pin 684 may be electrically connected within the second connector 685. The electrical connection may be made on the FPCB connected to the second connector 685. The third pin 683 and the fourth pin 684 may be electrically connected in the second printed circuit board 680. The electrical connection may be made using a mating connector of the second connector 685. The third pin 683 and the fourth pin 684 may be electrically connected using a wire 686.

According to an embodiment, the second printed circuit board 680 may include at least one of an interface connector 681 and an audio amplifier 682.

According to an embodiment, the electrical path 690 may electrically connect the first connector 615 and the second connector 685. The electrical path 690 may include at least one of a flexible printed circuit board (FPCB) or a pogo connector.

According to an embodiment, using the electrical path 690, the first pin 611 of the first connector 615 and the third pin 683 of the second connector 685 are electrically connected to each other, The second pin 612 of the first connector 615 and the fourth pin 684 of the second connector 685 may be electrically connected to each other.

According to various embodiments, when the first connector 615 and the second connector 685 are normally connected by using the electrical path 690, the pull-up resistor 640 is an enable input terminal of the load switch 630 ( By outputting a high signal to 635, power of the battery 605 can be normally supplied to the first connector 615 and the second connector 685.

According to various embodiments, when the first connector 615 and the second connector 685 are abnormally connected using the electrical path 690, the load switch 630 outputs a low signal, Power of the battery 605 may not be supplied to the first connector 615.

In the description of FIG. 7, redundant descriptions may be omitted for the same configurations and functions as those of the embodiment of FIG. 3, the embodiment of FIG. 5, and the embodiment of FIG. 6.

Referring to FIG. 7, an electronic device 700 (eg, the electronic device 101 of FIG. 1) according to various embodiments of the present disclosure includes a housing 701 and a battery 705 (eg, a battery of FIG. 1 ). 189)), a first printed circuit board 710, a first connector 715, a power management circuit 720 (for example, the power management module 188 in FIG. 1), a load switch 730, a pull-down resistor 740 ), a ground layer 750, a processor 770 (e.g., the processor 120 of FIG. 1), a second printed circuit board 780, a second connector 785 and/or an electrical path 790. I can.

According to an embodiment, the housing 701 may form the exterior of the electronic device 700. The housing 701 may include a space in which at least one or more components can be disposed.

According to an embodiment, the battery 705 may be located inside the housing 701. The battery 705 may supply power to the electronic device 700 when the electronic device 700 is powered on/off.

According to an embodiment, the first printed circuit board 710 may be located inside the housing 701.

According to various embodiments, the first printed circuit board 710 includes a first connector 715, a power management circuit 720, a load switch 730, a pull-down resistor 740, a ground layer 750, and/or It may include a processor 770.

According to an embodiment, the first connector 715 may include a first pin 711 and a second pin 712. The first pin 711 may receive a low voltage and low power constant power output from the power management circuit 720. The second pin 712 may be connected to the pull-down resistor 740. The pull-down resistor 740 may be connected to the ground layer 750.

According to various embodiments, the constant power supply may be a voltage that does not exceed about 15% of the reference voltage of the battery. For example, when the first connector 615 includes a GPIO of about 1.8V, the constant power may use a voltage that does not exceed a maximum rated value, for example, a voltage that does not exceed about 2.09V. . Further, when the first connector 615 includes a GPIO of about 2.8V, the constant power may use a voltage that does not exceed a maximum rated value, for example, a voltage that does not exceed about 3.1V.

According to an embodiment, the power management circuit 720 may be electrically connected to the battery 705. The power management circuit 720 may manage power supplied to the electronic device 700. When the power of the electronic device 700 is turned on, the power management circuit 720 may supply power of the battery 705 to other components (eg, the load switch 730 and the processor 770). The power management circuit 720 may receive a command from, for example, the processor 770 and manage power supply in response to the command.

According to an embodiment, the load switch 730 may serve to supply or cut off power applied from the power management circuit 720. The load switch 730 may include an input terminal 731 electrically connected to the power management circuit 720, an output terminal 733 electrically connected to the first connector 715, and an enable input terminal 735. .

According to various embodiments, the load switch 730 turns off the power of the battery 705 only when a high signal is input to the enable input terminal 735 through the pull-down resistor 740. 715).

According to an embodiment, the pull-down resistor 740 may be connected to the ground layer 750 to control current. The pull-down resistor 740 may have a range of 100Kohm to 1Mohm. A signal output through the pull-down resistor 740 may be used as an input of the load switch 730.

According to various embodiments, the pull-down resistor 740 includes a first terminal 741 and a ground layer 750 electrically connected to the second pin 712 of the first connector 715 and the enable input terminal 735. It may include a second terminal 742 electrically connected to.

According to an embodiment, the ground layer 750 may be connected to the second terminal 742 of the pull-down resistor 740.

According to an embodiment, the processor 770 may be electrically connected to the enable input terminal 735 of the load switch 730. For example, the processor 770 may be electrically connected to the enable input terminal 735 through a general purpose input/output (GPIO) port 775. In the processor 770, according to a high or low signal input through the enable input terminal 735 of the load switch 730, the first connector 715 and the second connector 785 are electrically It may be determined whether the connection is normally or abnormally connected through the path 790. The processor 770 may be set to provide status information on whether the first connector 715 and the second connector 785 are connected to the user.

According to various embodiments, the processor 770 may display whether the first connector 715 and the second connector 785 are normally connected or abnormally connected through the electrical path 790, for example, (E.g., display through a user interface (e.g., a pop-up) on the display device 160 of FIG. 1), or through a sound output unit (e.g., the sound output device 155 of FIG. 1) Can be printed.

According to an embodiment, the second printed circuit board 780 may be located inside the housing 701. The second printed circuit board 780 may be positioned to be spaced apart from the first printed circuit board 710. According to various embodiments, the first printed circuit board 710 and the second printed circuit board 780 are not spaced apart from each other and may be integrally configured.

According to various embodiments, the second printed circuit board 780 may include a second connector 785.

According to an embodiment, the second connector 785 may include a third pin 783 and a fourth pin 784. The third pin 783 and the fourth pin 784 may be electrically connected. The third pin 783 and the fourth pin 784 may be electrically connected within the second connector 785. The electrical connection may be made on the FPCB connected to the second connector 785. The third pin 783 and the fourth pin 784 may be electrically connected in the second printed circuit board 780. The electrical connection may be made using a mating connector of the second connector 785. The third pin 783 and the fourth pin 784 may be electrically connected using a wire 786.

According to an embodiment, the second printed circuit board 780 may include at least one of an interface connector 781 and an audio amplifier 782.

According to an embodiment, the electrical path 790 may electrically connect the first connector 715 and the second connector 785. The electrical path 790 may include at least one of a flexible printed circuit board (FPCB) or a pogo connector.

According to an embodiment, using the electrical path 790, the first pin 711 of the first connector 715 and the third pin 783 of the second connector 785 are electrically connected to each other, The second pin 712 of the first connector 715 and the fourth pin 784 of the second connector 785 may be electrically connected to each other.

According to various embodiments, when the first connector 715 and the second connector 785 are normally connected by using the electrical path 790, the pull-down resistor 740 is the enable input terminal of the load switch 730 ( By outputting a high signal to 735, power of the battery 705 can be normally supplied to the first connector 715 and the second connector 785.

According to various embodiments, when the first connector 715 and the second connector 785 are abnormally connected using the electrical path 790, the pull-down resistor 740 and the load switch 730 are low. Since a signal is output, power of the battery 705 may not be supplied to the first connector 715.

According to various embodiments of the present invention, the

first connectors

315, 515, 615, 715 and the

second connectors

385, 585, 685, 785 are used using the

electrical paths

390, 590, 690, and 790. Power of the

batteries

305, 505, 605, 705 is applied to the

first connectors

315, 515, 615, 715 only when the battery is normally connected, and the

first connectors

315, 515, 615, 715 and the second connector When (385, 585, 685, 785) is abnormally connected, the power of the battery (305, 505, 605, 705) is cut off, thereby removing the risk that may be caused by contact between the power pins and adjacent pins. This can prevent damage to electronic components.

In the above, the present invention has been described according to various embodiments of the present invention, but changes and modifications within the scope not departing from the technical spirit of the present invention by those of ordinary skill in the art belong to the present invention. Of course.

Claims

In the electronic device,

housing;

A battery located inside the housing;

As a first printed circuit board located inside the housing,

A first connector including a first pin and a second pin;

A power management circuit electrically connected to the battery;

A load switch including a first input terminal electrically connected to the power management circuit, a first output terminal electrically connected to the first connector, and an enable input terminal;

A first pull-up resistor including a first terminal electrically connected to the battery and a second terminal electrically connected to the first pin;

A second pull-up resistor including a third terminal electrically connected to the power management circuit and a fourth terminal electrically connected to the second pin; And

A first comprising a logic circuit comprising a second input terminal electrically connected to the second terminal, a third input terminal electrically connected to the fourth terminal, and a second output terminal electrically connected to the enable input terminal Printed circuit board;

As a second printed circuit board located inside the housing and spaced apart from the first printed circuit board,

A second connector including a third pin and a fourth pin; And

A second printed circuit board including a ground layer electrically connected to the third pin and the fourth pin; And

An electronic device comprising an electrical path electrically connected between the first connector and the second connector.
The method of claim 1,

The first pull-up resistor and the second pull-up resistor each have a range of 100Kohm to 1Mohm.
The method of claim 1,

Further comprising a processor electrically connected to the second output terminal,

The processor is an electronic device electrically connected to the second output terminal through a general purpose input/output (GPIO) port.
The method of claim 3,

Further comprising a display,

The processor is configured to display whether the first connector and the second connector are normally connected or abnormally connected through the electrical path through a user interface on the display.
The method of claim 3,

Further comprising an audio output unit,

The processor is configured to output sound through the sound output unit whether the first connector and the second connector are normally connected or abnormally connected through the electrical path.
The method of claim 1,

The second printed circuit board includes at least one of an interface connector and an audio amplifier.
The method of claim 1,

The logic circuit is configured to output a high signal through the second output terminal only when a low signal is received from the second input terminal and the third input terminal,

The load switch is set to apply power of the battery to the first connector only when a high signal is received to the enable input terminal through the second output terminal.
The method of claim 1,

The electrical path includes at least one of a flexible printed circuit board (FPCB) or a pogo connector.
The method of claim 1,

The electronic device in which the first pin and the third pin are electrically connected to each other, and the second pin and the fourth pin are electrically connected to each other through the electrical path.
In the electronic device,

housing;

A battery located inside the housing;

As a first printed circuit board located inside the housing,

A power management circuit electrically connected to the battery;

A first connector including a first pin to which constant power output from the power management circuit is applied;

A load switch including an input terminal electrically connected to the power management circuit, an output terminal electrically connected to the first connector, and an enable input terminal; And

A pull-up resistor comprising a first terminal electrically connected to a second pin of the first connector and a second terminal electrically connected to the enable input terminal

A first printed circuit board comprising a;

A second printed circuit board disposed inside the housing, spaced apart from the first printed circuit board, and including a second connector including a third pin and a fourth pin electrically connected; And

An electronic device comprising an electrical path electrically connected between the first connector and the second connector.
The method of claim 10,

The pull-up resistor is an electronic device having a range of 100Kohm to 1Mohm.
The method of claim 10,

Further comprising a processor electrically connected to the enable input terminal,

The processor is an electronic device electrically connected to the enable input terminal through a general purpose input/output (GPIO) port.
The method of claim 10,

The constant power electronic device is a voltage that does not exceed 15% of the reference voltage of the battery.
The method of claim 10,

The electrical path includes at least one of a flexible printed circuit board (FPCB) or a pogo connector,

The electronic device in which the first pin and the third pin are electrically connected to each other, and the second pin and the fourth pin are electrically connected to each other through the electrical path.
In the electronic device,

housing;

A battery located inside the housing;

As a first printed circuit board located inside the housing,

A power management circuit electrically connected to the battery;

A first connector including a first pin to which constant power output from the power management circuit is applied;

A load switch including an input terminal electrically connected to the power management circuit, an output terminal electrically connected to the first connector, and an enable input terminal;

Ground layer; And

A first printed circuit board including a pull-down resistor including a first terminal electrically connected to the second pin of the first connector and the enable terminal, and a second terminal electrically connected to the ground layer;

A second printed circuit board disposed inside the housing, spaced apart from the first printed circuit board, and including a second connector including a third pin and a fourth pin electrically connected; And

An electronic device comprising an electrical path electrically connected between the first connector and the second connector.