KR102627633B1 - Electronic device including logic circuit for determining connecting state of connector - Google Patents

Abstract

Various embodiments of the present invention provide an electronic device including a logic circuit for determining a connection state of a connector, the electronic device comprising: a housing; a battery located inside the housing; A first printed circuit board located within the housing, the first connector comprising 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, and can prevent damage to electronic components by eliminating hazards that may occur due to contact between the power pin and adjacent pins. Various other embodiments are possible.

Description

Electronic device including logic circuit for determining connecting state of 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 being provided to the electronic devices.

The electronic device may include at least one printed circuit board (PCB) and at least one connector to provide various functions.

The electronic device connects a plurality of printed circuit boards on which various electronic components are mounted using connectors, and can transmit and receive signals or data.

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

In this case, if the power applied to the power pin is applied to an adjacent pin (e.g., a signal pin or ground pin), components connected to the adjacent pin may be damaged due to overvoltage or overcurrent.

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

An electronic device according to various embodiments of the present invention includes a housing; a battery located inside the housing; A first printed circuit board located within the housing, the first connector comprising 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 invention includes a housing; a battery located inside the housing; a first printed circuit board located within the housing, the 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 a second pin of the first connector; a second printed circuit board located 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 invention includes a housing; a battery located inside the housing; a first printed circuit board located within the housing, the 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 a 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 located 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 connectors, power is applied using a logic circuit depending on whether the connectors are connected normally or abnormally. Or, by blocking it, damage to electronic components can be prevented by eliminating risk factors that may occur due to contact between the power pin and adjacent pins.

1 is a block diagram of an electronic device in a network environment according to various embodiments of the present invention.
Figure 2 is a block diagram of a power management module and a battery according to various embodiments of the present invention.
3 is a block diagram schematically showing the configuration of an example of an electronic device according to various embodiments of the present invention.
Figure 4 is a flowchart showing a method of determining the connection state of a connector using a logic circuit of an electronic device according to various embodiments of the present invention.
Figure 5 is a block diagram schematically showing the configuration of another example of an electronic device according to various embodiments of the present invention.
Figure 6 is a block diagram schematically showing the configuration of another example of an electronic device according to various embodiments of the present invention.
Figure 7 is a block diagram schematically showing the configuration of another example of an electronic device according to various embodiments of the present invention.

1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments. Referring to FIG. 1, in the network environment 100, the electronic device 101 communicates with the electronic device 102 through a first network 198 (e.g., 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 (e.g., a long-distance wireless communication network). According to one embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108. According to one 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. ) may include. In some embodiments, at least one of these components (eg, 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 a single integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illumination sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (e.g., program 140) to operate at least one other component (e.g., hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and various data processing or calculations can be performed. According to one embodiment, as at least part of data processing or computation, the processor 120 stores instructions or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132. The commands or data stored in the volatile memory 132 can be processed, and the resulting data can be stored in the non-volatile memory 134. According to one embodiment, the processor 120 includes a main processor 121 (e.g., a central processing unit or an application processor), and an auxiliary processor 123 that can operate independently or together (e.g., a graphics processing unit, an image signal processor). , sensor hub processor, or communication processor). Additionally or alternatively, the auxiliary processor 123 may be set to use less power than the main processor 121 or to specialize in a designated function. The auxiliary processor 123 may be implemented separately from the main processor 121 or as part of it.

The auxiliary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (e.g., sleep) state, or while the main processor 121 is in an active (e.g., application execution) state. ), together with the main processor 121, at least one of the components of the electronic device 101 (e.g., the display device 160, the sensor module 176, or the communication module 190) At least some of the functions or states related to can be controlled. According to one embodiment, co-processor 123 (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module 180 or communication module 190). there is.

The memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101. Data may include, for example, input data or output data for software (e.g., program 140) and instructions related thereto. Memory 130 may include volatile memory 132 or non-volatile 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 application 146.

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

The sound output device 155 may output sound signals 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 can 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 one embodiment, the display device 160 may include touch circuitry configured to detect a touch, or a sensor circuit configured to measure the intensity of force generated by the touch (e.g., a pressure sensor). there is.

The audio module 170 can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module 170 acquires sound through the input device 150, the sound output device 155, or an external electronic device (e.g., directly or wirelessly connected to the electronic device 101). Sound may be output through an electronic device 102 (e.g., speaker or headphone).

The sensor module 176 detects the operating state (e.g., power or temperature) of the electronic device 101 or the external environmental state (e.g., user state) and generates an electrical signal or data value corresponding to the detected state. can do. According to one embodiment, the sensor module 176 includes, for example, a gesture sensor, a gyro sensor, an air 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, humidity sensor, or light sensor.

The interface 177 may support one or more designated protocols that can be used to connect the electronic device 101 directly or wirelessly with an external electronic device (eg, the electronic device 102). According to one 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 one 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 can convert electrical signals into mechanical stimulation (e.g., vibration or movement) or electrical stimulation that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

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

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

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

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

The antenna module 197 may transmit or receive signals or power to or from the outside (e.g., an external electronic device). According to one embodiment, the antenna module may include one antenna including a radiator made of a conductor or a conductive pattern formed on a substrate (eg, PCB). According to one 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 connected to the plurality of antennas by, for example, the communication module 190. can be selected. Signals or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, RFIC) in addition to 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 between peripheral devices (e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal ( (e.g. commands or data) can be exchanged with each other.

According to one embodiment, commands 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 the same or different type of device from the electronic device 101. According to one embodiment, all or part of the operations performed in the electronic device 101 may be executed in one or more of the external electronic devices 102, 104, or 108. For example, when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 may perform the function or service instead of executing the function or service on its own. Alternatively, or additionally, one or more external electronic devices may be requested to perform at least part of the function or service. One or more external electronic devices that have received the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device 101. The electronic device 101 may process the result as 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. This can be used.

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

Referring to FIG. 2 , 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 using power supplied from an external power source for the electronic device 101. According to one embodiment, the charging circuit 210 is configured to determine the type of external power source (e.g., power adapter, USB, or wireless charging), the size of power that can be supplied from the external power source (e.g., about 20 watts or more), or the battery (189). ), a charging method (e.g., normal charging or fast charging) can be selected based on at least some of the properties of ), and the battery 189 can be charged using the selected charging method. The external power source may be connected to the electronic device 101 by wire, for example, through the connection terminal 178, or wirelessly through the antenna module 197.

The power regulator 220 may generate a plurality of powers having different voltages or different current levels by, for example, adjusting the voltage level or current level of power supplied from an external power source or the battery 189. The power regulator 220 may adjust the power of the external power source or battery 189 to a voltage or current level suitable for each of some of the components included in the electronic device 101. According to one 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 status information about the battery 189 (e.g., capacity, charge/discharge count, voltage, or temperature) of the battery 189.

The power management module 188 may, for example, use the charging circuit 210, the voltage regulator 220, or the power gauge 230 to control the battery 189 based at least in part on the measured usage information. Charge state information related to charging (e.g., life, overvoltage, undervoltage, overcurrent, overcharge, overdischarge, overheating, 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 charging state information. If the state of the battery 189 is determined to be abnormal, the power management module 188 may adjust charging of the battery 189 (eg, reduce charging current or voltage, or stop charging). According to one embodiment, at least some of the functions of the power management module 188 may be performed by an external control device (eg, processor 120).

The battery 189 may include a battery protection circuit (protection circuit module (PCM)) 240, according to one embodiment. The battery protection circuit 240 may perform one or more of various functions (eg, a pre-blocking function) to prevent performance degradation or burnout of the battery 189. The battery protection circuit 240 is, additionally or alternatively, a battery management system (battery management system) that can perform various functions including cell balancing, battery capacity measurement, charge/discharge count measurement, temperature measurement, or voltage measurement. It may be configured as at least a part of BMS)).

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

Electronic devices according to various embodiments disclosed in this document may be of various types. Electronic devices may include, for example, portable communication devices (e.g., smart phones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments of this document are not limited to the above-described devices.

The various embodiments of this document and the terms used herein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various changes, equivalents, or replacements of the embodiments. In connection with the description of the drawings, similar reference numbers 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 above items, unless the relevant context clearly indicates otherwise. 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 phrase, or any possible combination thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish one component from another, and to refer to that component in other respects (e.g., importance or order) is not limited. One (e.g., first) component is said to be “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively.” When mentioned, it means that any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through 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 block, component, or circuit, for example. A module may be an integrated part or a minimum unit of the parts or a part thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document are one or more instructions stored in a storage medium (e.g., built-in memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). It may be implemented as software (e.g., program 140) including these. For example, a processor (e.g., processor 120) of a device (e.g., electronic device 101) may call at least one command among one or more commands stored from a storage medium and execute it. This allows the device to be operated 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. Device-readable storage media may be provided in the form of non-transitory storage media. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain signals (e.g. electromagnetic waves). This term refers to cases where data is stored semi-permanently in the storage medium. There is no distinction between temporary storage cases.

According to one embodiment, methods according to various embodiments disclosed in this document may be provided and included in a computer program product. Computer program products are commodities and can be traded between sellers and buyers. The computer program product may be distributed in the form of a machine-readable storage medium (e.g. compact disc read only memory (CD-ROM)) or via an application store (e.g. Play Store ^TM ) or on two user devices (e.g. It can be distributed (e.g. downloaded or uploaded) directly between smartphones) or online. 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 a relay server.

According to various embodiments, each component (eg, module or program) of the above-described components may include a single entity or a plurality of entities. According to various embodiments, one or more of the components or operations described above may be omitted, or one or more other components or operations may be added. Alternatively or additionally, multiple components (eg, modules or programs) may be integrated into a single 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 manner as those performed by the corresponding component of the plurality of components prior to the integration. . According to various embodiments, 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, or omitted. Alternatively, one or more other operations may be added.

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

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

According to one embodiment, the housing 301 may form the exterior of the electronic device 300. The housing 301 may include a space within which at least one component can be placed.

According to various embodiments, the internal space of the housing 301 includes 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 one 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 turned 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 on substantially 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 placed inside the electronic device 300. The battery 305 may be arranged to be detachable from the electronic device 300.

According to one embodiment, the first printed circuit board 310 may be located inside the housing 301. The first printed circuit board 310 may include 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. ), may include a logic circuit 360 and/or a processor 370.

According to one 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 a second pull-up resistor 350 connected to the power management circuit 320.

According to one 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 turned on.

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

According to one embodiment, the load switch 330 may serve to supply or block power applied from the power management circuit 320. The load switch 330 has 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. may include.

According to various embodiments, the enable input terminal 335 operates when both the second input terminal 362 and the third input terminal 363 of the logic circuit 360 are in a low state. ) can receive a high signal output through the second output terminal 365. The load switch 330 can 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 one embodiment, the first pull-up resistor 340 and the second pull-up resistor 350 can control current when connected to the ground. The first pull-up resistor 340 and the second pull-up resistor 350 may each have a range of 100 Kohm to 1 Mohm. The signal output through the first pull-up resistor 340 and the second pull-up resistor 350 may be used as an input to the logic circuit 360.

According to various embodiments, the first pull-up resistor 340 has 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. It may include (342).

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 of the first connector 315. It may include 4 terminals 352.

According to one 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 a second input terminal 362 of the second pull-up resistor 350. 4 It may include 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 outputs signals through the second output terminal 365 only when receiving low signals from the second input terminal 362 and the third input terminal 363, respectively. A high signal can be output to the enable input terminal 335 of the load switch 330.

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

According to one 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. The processor 370 electrically connects the first connector 315 and the second connector 385 according to a high or low signal output through the second output terminal 365 of the logic circuit 360. It can be determined whether the connection is normally or abnormally connected through the path 390. The processor 370 may be set to provide status information to the user about whether the first connector 315 and the second connector 385 are connected.

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

According to various embodiments, the processor 370 may control the overall operation of the electronic device 300 and signal flow between internal blocks of the electronic device 300, and may perform a data processing function to process 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 one embodiment, the second printed circuit board 380 may be located inside the housing 301. The second printed circuit board 380 may be positioned spaced apart from the first printed circuit board 310 . The second printed circuit board 380 may include 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 formed as one body.

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

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

According to various embodiments, the interface connector 381 (e.g., the connection terminal 178 in FIG. 1) electrically or It 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 includes, 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 an 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 an electrical signal or convert an electrical signal into sound. The audio amplifier 382 may acquire sound through an input device (eg, input device 150 in FIG. 1) or output sound through a speaker or headphones.

According to one 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, 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 using the electrical path 390, 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 using the electrical path 390, the logic circuit 360 connects the second input terminal 362 and the third input. Through the terminal 363, a low signal is received from the first pull-up resistor 340 and the second pull-up resistor 350, and an enable input of the load switch 330 is received 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 from the battery 305 may not be supplied to the first connector 315.

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

Operations 410 to 450 of FIG. 4 may be performed, for example, by the electronic device 300 of FIG. 3 . Hereinafter, the components of FIGS. 1 to 3 may be used in the description 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, FPCB or 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 a low signal is input to both the second input terminal 362 and the third input terminal 363 of the logic circuit 360, the processor 370 connects the first connector 315 and 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. When 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, it can be determined that the connection is normal.

In operation 425, a low signal is not input to both the second input terminal 362 and the third input terminal 363 of the logic circuit 360, so the first connector 315 and the second connector 385 ) is determined to be not normally connected, the processor 370 displays, for example, a user interface (user interface) notifying the abnormal connection of the first connector 315 and the second connector 385 (e.g., Figure 1 displayed on the display device 160) or output as sound through an audio output unit (e.g., the audio output device 155 of FIG. 1) so that the user of the electronic device 300 can connect the first connector 315 and It is possible to support normal connection of the second connector 385.

According to various embodiments, if 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 turned low. Since a signal is output, power from 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 If 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 from the battery 305 can be normally supplied to the first connector 315.

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

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

In the description of FIG. 5, duplicate descriptions of the same configuration and function as the embodiment of FIG. 3 described above may be omitted.

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

According to one embodiment, the housing 501 may form the exterior of the electronic device 500. The housing 501 may include a space within which at least one component can be placed.

According to one 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 turned on/off.

According to one 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. You can.

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

According to one embodiment, the processor 520 may be electrically connected to the battery 505 and perform the 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 electronic device 500 is turned on, the processor 520 may supply power from 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. there is. The processor 520 electrically connects the first connector 515 and the second connector 585 according to a high or low signal input through the second output terminal 565 of the logic circuit 560. It can be determined whether the connection is normal or abnormal through the path 590. The processor 520 may be set to provide status information to the user about whether the first connector 515 and the second connector 585 are connected.

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

According to one embodiment, the load switch 530 may serve to supply or block 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. You can.

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

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

According to various embodiments, the pull-up resistor 540 has 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. ) may include.

According to one 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. It may include 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 outputs information through the second output terminal 565 only when receiving low signals from the second input terminal 562 and the third input terminal 563, respectively. A high signal can be output to the enable input terminal 535 of the load switch 530.

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

According to one embodiment, the second printed circuit board 580 may be located inside the housing 501. The second printed circuit board 580 may be positioned 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 formed as one piece.

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

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

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

According to one 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, 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 using the electrical path 590, 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 connects the second input terminal 562 and the third input. Through the terminal 563, a low signal is received from the pull-up resistor 540 and the processor 520, and to the enable input terminal 535 of the load switch 530 through the second output terminal 565. By outputting a high signal, power from 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 from the battery 505 may not be supplied to the first connector 515.

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

In the description of FIG. 6, duplicate descriptions of the same configuration and functions as the embodiments of FIG. 3 and FIG. 5 described above may be omitted.

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

According to one embodiment, the housing 601 may form the exterior of the electronic device 600. The housing 601 may include a space within which at least one component can be placed.

According to one 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 turned on/off.

According to one 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. It can be included.

According to one embodiment, the first connector 615 may include a first pin 611 and a second pin 612. The first pin 611 can 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 source may have a voltage that does not exceed about 15% compared to the reference voltage of the battery. For example, if the first connector 615 includes a general purpose input/output (GPIO) of about 1.8V, the constant power supply has a voltage that does not exceed absolute maximum ratings, e.g. Voltages not exceeding approximately 2.09V can be used. Additionally, when the first connector 615 includes a GPIO of about 2.8V, the constant power source may use a voltage that does not exceed the maximum rated value, for example, a voltage that does not exceed about 3.1V.

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

According to one embodiment, the load switch 630 may serve to supply or block 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 power from the battery 605 to the first connector 615 only when a high signal is input through the enable input terminal 635. there is.

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

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

According to one 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. The processor 670 electrically connects the first connector 615 and the second connector 685 according to a high or low signal input through the enable input terminal 635 of the load switch 630. It can be determined whether the connection is normally or abnormally connected through the path 690. The processor 670 may be set to provide status information to the user about whether the first connector 615 and the second connector 685 are connected.

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

According to one embodiment, the second printed circuit board 680 may be located inside the housing 601. The second printed circuit board 680 may be positioned 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 formed as one piece.

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

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

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

According to one 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 one embodiment, 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 using the electrical path 690, 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 using the electrical path 690, the pull-up resistor 640 is connected to the enable input terminal ( By outputting a high signal to 635, power from 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 from the battery 605 may not be supplied to the first connector 615.

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

In the description of FIG. 7, duplicate descriptions of the same configuration and functions as the above-described embodiment of FIG. 3, embodiment of FIG. 5, and embodiment of FIG. 6 may be omitted.

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

According to one embodiment, the housing 701 may form the exterior of the electronic device 700. The housing 701 may include a space within which at least one component can be placed.

According to one 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 turned on/off.

According to one 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 May include a processor 770.

According to one embodiment, the first connector 715 may include a first pin 711 and a second pin 712. The first pin 711 can receive 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 source may have a voltage that does not exceed about 15% compared to the reference voltage of the battery. For example, if the first connector 615 includes a GPIO of about 1.8V, the constant power source may use a voltage that does not exceed the maximum rated value, for example, a voltage that does not exceed about 2.09V. . Additionally, when the first connector 615 includes a GPIO of about 2.8V, the constant power source may use a voltage that does not exceed the maximum rated value, for example, a voltage that does not exceed about 3.1V.

According to one 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 electronic device 700 is turned on, the power management circuit 720 may supply power from the battery 705 to other components (eg, the load switch 730 and the processor 770). The power management circuit 720 may, for example, receive commands from the processor 770 and manage power supply in response to the commands.

According to one embodiment, the load switch 730 may serve to supply or block 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 supplies power to the battery 705 to the first connector ( 715).

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

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

According to one 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. The processor 770 electrically connects the first connector 715 and the second connector 785 according to a high or low signal input through the enable input terminal 735 of the load switch 730. It can be determined whether the connection is normally or abnormally connected through the path 790. The processor 770 may be set to provide status information to the user about whether the first connector 715 and the second connector 785 are connected.

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

According to one embodiment, the second printed circuit board 780 may be located inside the housing 701. The second printed circuit board 780 may be positioned 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 formed as one piece.

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

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

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

According to one 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 one embodiment, 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 using the electrical path 790, 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 using the electrical path 790, the pull-down resistor 740 is connected to the enable input terminal ( By outputting a high signal to 735, power from 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 from the battery 705 may not be supplied to the first connector 715.

According to various embodiments of the present invention, first connectors 315, 515, 615, 715 and second connectors 385, 585, 685, 785 are connected using electrical paths 390, 590, 690, and 790. Only when connected normally, the power of the battery (305, 505, 605, 705) is applied to the first connector (315, 515, 615, 715), and the first connector (315, 515, 615, 715) and the second connector When (385, 585, 685, 785) is connected abnormally, the power to the battery (305, 505, 605, 705) is cut off, thereby eliminating risk factors that may occur due to, for example, contact between the power pin 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 made by those skilled in the art without departing from the technical spirit of the present invention do not fall within the scope of the present invention. Of course.

300, 500, 600, 700: Electronic devices
301, 501, 601, 701: Housing
305, 505, 605, 705: Battery
310, 510, 610, 710: first printed circuit board
315, 515, 615, 715: first connector
320, 620, 720: Power management circuit
330, 530, 630, 730: load switch
360, 560, 660: logic circuit
370, 520, 670, 770: Processors
380, 580, 680, 780: second printed circuit board
385, 585, 685, 785: second connector
390, 590, 690, 790: Electrical Pathways

Claims (20)

In electronic devices,
housing;
a battery located inside the housing;
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 circuit comprising 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. printed circuit board;
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;
an electrical path electrically connected between the first connector and the second connector; and
Including a processor electrically connected to the second output terminal,
The processor,
Using the electrical path, confirm the connection of the first connector and the second connector,
When it is determined that low signals are input to both the second and third input terminals of the logic circuit, the logic circuit is controlled to output a high signal to the enable input terminal of the load switch through the second output terminal. output a signal,
An electronic device configured to supply power from the battery to the first connector based on the high signal. According to clause 1,
The first pull-up resistor and the second pull-up resistor each have a range of 100 Kohm to 1 Mohm. delete According to clause 1,
The processor is an electronic device electrically connected to the second output terminal through a general purpose input/output (GPIO) port. According to clause 1,
further comprising a display,
The processor is configured to, when power is supplied to the first connector, display a user interface on the display indicating that the first connector and the second connector are normally connected through the electrical path. According to clause 1,
Further comprising an audio output unit,
The processor is configured to output, through the audio output unit, a sound indicating that the first connector and the second connector are normally connected through the electrical path when power is supplied to the first connector. According to clause 1,
The second printed circuit board includes at least one of an interface connector or an audio amplifier. According to clause 1,
The logic circuit is configured to output a high signal through the second output terminal only when low signals are received from the second input terminal and the third input terminal. According to clause 8,
The load switch is set to apply power from the battery to the first connector only when a high signal is received at the enable input terminal through the second output terminal. According to clause 1,
The electrical path includes at least one of a flexible printed circuit board (FPCB) or a pogo connector. According to clause 1,
An 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. delete delete delete delete delete delete delete delete delete

Images