Electronic device and electronic device system

Abstract

The present disclosure provides an electronic device and an electronic device system, comprising: a controller, a wireless charging module, a first coil and a second coil; the controller is configured to control the wireless charging module to be connected with the first coil and the second coil in time division, so as to at least supply power to a first device at the first coil and a second device at the second coil.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and more particularly to an electronic device and an electronic equipment system. Background Technology

[0002] In existing tablet systems, external keyboards and styluses are typically included to enhance device functionality and user experience.

[0003] However, current solutions have significant shortcomings in charging mechanisms and communication methods. Specifically, existing technologies use two separate Wireless Charging (WLC) systems to charge the keyboard and stylus respectively. This not only increases the complexity of hardware design but also raises manufacturing costs. Furthermore, data transmission between devices relies on multiple Bluetooth antennas, further increasing costs and potentially leading to compatibility and interference issues.

[0004] In view of the above, there is an urgent need in the market for a technical solution that can effectively integrate charging and communication functions in order to reduce production costs and improve the integration and compatibility between devices. Utility Model Content

[0005] To address the aforementioned problems, this disclosure provides an electronic device and an electronic device system, the technical solution of which is as follows:

[0006] In a first aspect, this disclosure proposes an electronic device comprising:

[0007] Controller, wireless charging module, first coil and second coil;

[0008] The controller is configured to control the wireless charging module to be connected to the first coil and the second coil in a time-sharing manner, so as to supply power to at least the first device at the first coil and the second device at the second coil.

[0009] In some embodiments, the device further includes: a radio frequency switch coupled to the output path of the wireless charging module; in response to a first command from the controller to connect the first coil, the radio frequency switch connects the output path and the first coil; and in response to a second command from the controller to connect the second coil, the radio frequency switch connects the output path and the second coil.

[0010] In some embodiments, the first coil and the second coil are spaced apart on the same side surface of the electronic device to simultaneously power and / or communicate with the first device and the second device, wherein the first device and the second device serve as auxiliary devices of the electronic device and are used as input elements of the electronic device.

[0011] In some embodiments, when the first device is connected to the first coil and the second device is connected to the second coil, the wireless charging module supplies power to the first device; the first device is a keyboard.

[0012] If the first device is disconnected from the first coil, the wireless charging module supplies power to the second device.

[0013] In some embodiments, when powering the first device, the wireless charging module operates in a periodic alternation mode, each cycle including a power supply period and a data communication period, the duty cycle of the power supply period and the data communication period being greater than or equal to a first threshold, to ensure continuous power supply to the first device and execution of the data communication, wherein the first device does not include a battery.

[0014] Secondly, this disclosure proposes an electronic device system, comprising:

[0015] Electronic equipment, a first device, a second device, and a detection module;

[0016] The electronic device includes: a controller, a wireless charging module, a first coil, and a second coil;

[0017] The controller is configured to control the wireless charging module to be connected to the first coil and the second coil in a time-division manner, so as to at least power the first device at the first coil and the second device at the second coil;

[0018] The detection module is used to detect the connection status of the first device, the second device and the electronic device, and to send a signal to determine the presence of the target coil.

[0019] In some embodiments, the detection module is a magnetic field sensor, used to detect changes in the magnetic field when the first device, the second device, and the electronic device are connected and to emit signals respectively, wherein the first device and the second device are auxiliary devices of the electronic device and are used as input elements of the electronic device.

[0020] In some embodiments, it also includes:

[0021] A switching element, wherein the switching element is disposed in the wireless charging module;

[0022] The first link has one end connected to the switch of the wireless charging module and the other end connected to the first coil, and the first device can be electrically connected to the electronic device through the first link;

[0023] The second link has one end connected to the switch of the wireless charging module and the other end connected to the second coil, enabling the second device to be electrically connected to the electronic device via the second link.

[0024] In some embodiments, when both the first device and the second device are simultaneously connected to the electronic device, the switch remains connected to the first link, while the second link is in a standby state.

[0025] If the first device is disconnected from the electronic device, while the second device remains connected to the electronic device, the switch switches to a state of connection with the second link to supply power and facilitate communication to the second device.

[0026] In some embodiments, when the electronic device enters a low-power standby mode and the second device remains connected to the electronic device, the switch is connected to the second link.

[0027] The above description is only an overview of the technical solution of this disclosure. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, the preferred embodiments of this disclosure are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of an electronic device provided in this disclosure;

[0030] Figure 2 This is a schematic diagram of an electronic device system provided in this disclosure.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Controller; 20. Wireless charging module; 30. First coil; 40. Second coil; 50. Radio frequency switch; 60. First device; 70. Second device; 80. Detection module; 90. Switching element; 100. First link; 110. Second link. Detailed Implementation

[0033] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0034] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0035] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0037] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0038] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0039] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0040] In today's ecosystem of electronic devices (such as tablets), multiple accessories are typically included, such as keyboards and styluses. These accessories often also feature wireless charging capabilities to enhance the user experience.

[0041] The common approach is that the tablet itself charges its built-in battery through a wireless charging module, while the keyboard and stylus each use their own independent wireless charging module (including coils, controllers, etc.) and each supports the Qi protocol for wireless charging.

[0042] The above implementation method has many problems. For example, setting up multiple independent wireless charging modules leads to redundant component configuration, which increases manufacturing costs. Furthermore, multiple wireless charging channels require independent control and coordination, which increases the complexity of software and hardware design. Multiple independent systems also cause energy waste and reduced efficiency.

[0043] To address the aforementioned issues, this application provides a shareable wireless charging module to offer time-sharing wireless charging and communication services to multiple external devices, such as keyboards and styluses.

[0044] like Figure 1 As shown, in a first aspect, this disclosure proposes an electronic device comprising:

[0045] Controller 10, wireless charging module, first coil 30 and second coil 40;

[0046] The controller 10 is configured to control the wireless charging module 20 to be switched on with the first coil 30 and the second coil 40 at different times, so as to power at least the first device 60 at the first coil 30 and the second device 70 at the second coil 40.

[0047] Understandably, the controller 10 is used to control the wireless charging module 20 to switch between connecting to the first coil 30 or the second coil 40 in a time-sharing manner; the first coil 30 is used to wirelessly charge the first device (such as a keyboard) placed on it; the second coil 40 is used to wirelessly charge the second device (such as a stylus) placed on it; the wireless charging module 20 can be a standard wireless charging module 20 that supports the Qi protocol.

[0048] The controller 10 activates different coils in turn according to preset logic or user behavior, thereby enabling wireless charging of multiple devices.

[0049] The control logic of controller 10 can make decisions based on whether the device is close to / placed on the coil (detectable via NFC or proximity sensor); the current battery status of the device; the user's current usage mode (such as whether a stylus is being used); or charging priority settings (such as prioritizing charging the keyboard).

[0050] The above solution enables electronic devices to serve multiple devices with only one wireless charging module 20, thereby reducing the number of hardware components and further reducing the space occupied by the PCB, making the device thinner and lighter.

[0051] It can also improve the user experience, support multiple devices to be placed in the charging area at the same time, and automatically charge in different time periods. This can avoid users frequently plugging and unplugging charging cables, improve convenience, and also support intelligent scheduling to improve overall charging efficiency.

[0052] In some embodiments, the system further includes an RF switch 50 coupled to the output path of the wireless charging module 20. In response to a first command from the controller 10 to connect the first coil 30, the RF switch 50 connects the output path and the first coil 30; in response to a second command from the controller 10 to connect the second coil 40, the RF switch 50 connects the output path and the second coil 40.

[0053] Understandably, in order to precisely manage the energy transmission path and improve the flexibility and efficiency of the system, an RF switch 50 is introduced to refine the connection control between the wireless charging module 20 and different coils.

[0054] The RF switch 50 enables the connection between the output path and a specific coil. The RF switch 50 can switch the energy path output by the wireless charging module 20 to ensure that energy can be accurately delivered to the designated coil.

[0055] The controller 10 can generate a first command to connect the first coil 30 and a second command to connect the second coil 40. When the controller 10 issues the command to connect the first coil 30, the radio frequency switch 50 connects the output path of the wireless charging module 20 with the first coil 30, so that energy can be directly transferred from the wireless charging module 20 to the first coil 30, thereby charging the first device 60 placed on the first coil 30.

[0056] Similarly, when the controller 10 issues a command to connect the second coil 40, the radio frequency switch 50 connects the output path of the wireless charging module 20 with the second coil 40, thus completing the charging process for the second device 70.

[0057] Meanwhile, the controller 10 precisely controls the state changes of the radio frequency switch 50, which can provide power to different coils at different times, thereby realizing time-sharing wireless charging for multiple devices.

[0058] The RF switch 50 can quickly respond to the controller 10's commands, reduce energy transmission delay, improve overall charging efficiency, and more accurately manage energy flow, avoiding unnecessary energy loss.

[0059] In some embodiments, the first coil 30 and the second coil 40 are spaced apart on the same side surface of the electronic device to simultaneously power and / or communicate with the first device 60 and the second device 70, wherein the first device 60 and the second device 70 serve as auxiliary devices of the electronic device and are used as input elements of the electronic device.

[0060] Understandably, the first coil 30 and the second coil 40 are spaced apart and positioned on the same side surface of the electronic device (such as a tablet). This layout is designed to simultaneously support the wireless charging and / or communication needs of the first device 60 (e.g., a keyboard) and the second device 70 (e.g., a stylus).

[0061] Integrating the coil onto one side of the electronic device helps maintain its overall compactness and portability. When in use, the user simply places the accessory device, such as the first device 60 or the second device 70, in the corresponding position for automatic charging to begin, without the need for additional cables or accessories.

[0062] The first coil 30 can be located at the bottom of the electronic device, which is suitable for placing larger input devices such as keyboards. The second coil 40 can be located at the top or side of the electronic device, which is convenient for placing and positioning smaller devices such as styluses.

[0063] Furthermore, both the first coil 30 and the second coil 40 can operate independently, providing power to the corresponding first device 60 and second device 70. In addition to charging, the coils can also be used for data transmission, enabling bidirectional communication between the first device 60, the second device 70, and the host computer.

[0064] In some embodiments, when the first device 60 is connected to the first coil 30 and the second device 70 is connected to the second coil 40, the wireless charging module 20 supplies power to the first device 60; the first device 60 is a keyboard.

[0065] If the first device 60 is disconnected from the first coil 30, the wireless charging module 20 will supply power to the second device 70.

[0066] Understandably, to ensure that the primary input device, such as the keyboard, is always powered when needed, while also accommodating the charging needs of other auxiliary devices, such as the second device 70, the electronic device is configured such that if the first device 60 (keyboard) is placed on and connected to the first coil 30, the wireless charging module 20 prioritizes powering the first device 60.

[0067] When the first device 60 remains connected to the first coil 30, the wireless charging module 20 will provide power to the second device 70 regardless of whether the second device 70 is in contact with the second coil 40, to ensure that the user will not be interrupted due to insufficient power during use.

[0068] When the controller detects that the first device 60 has disconnected from the first coil 30 (e.g., the user has taken the keyboard), the controller 10 will automatically adjust the output path of the wireless charging module 20 to the second coil 40 and begin to power the second device 70.

[0069] This process can utilize the RF switch 50 to achieve fast and seamless power transfer path switching.

[0070] The work process is as follows:

[0071] The system monitors the status of the first device 60 and the second device 70 (whether they are close to / in contact with the corresponding coil) through sensors (such as proximity sensors or the sensing signals of the coil itself).

[0072] If only the first device 60 exists and is connected to the first coil 30, then power is supplied to the first device 60.

[0073] If the first device 60 disconnects while the second device 70 is within the coil's range, power will be supplied to the second device 70. If both devices are present but the first device 60 has priority, the status quo will be maintained until the first device 60 leaves. As user behavior changes (such as removing the keyboard or placing the stylus in the charging area), the system can respond in real time and reallocate charging resources to ensure the best user experience.

[0074] In some embodiments, when powering the first device 60, the wireless charging module 20 operates in a periodic alternation mode, each cycle including a power supply period and a data communication period, the duty cycle of the power supply period and the data communication period being greater than or equal to a first threshold, so as to continuously power the first device 60 and perform data communication, wherein the first device 60 does not include a battery.

[0075] Understandably, while ensuring a continuous power supply to the first device 60 (which does not have a built-in battery), necessary data communication with the host is also required. By rationally arranging the ratio of power supply periods to data communication periods (i.e., duty cycle), the device's needs can be effectively met.

[0076] Within each cycle, the wireless charging module 20 switches between two phases: a power supply phase and a data communication phase. It utilizes the principle of electromagnetic induction to perform energy transfer and data exchange functions at different times.

[0077] During power supply periods, the wireless charging module 20 focuses on providing the necessary power to the first device 60 to ensure its normal operation. A duty cycle greater than or equal to a first threshold means that most of the time is allocated to power supply to ensure that the first device 60 can operate stably without interruption due to insufficient power.

[0078] During data communication, the wireless charging module 20 temporarily stops energy transmission and instead uses the coil for data communication. Using the same coil, data information can be sent and received by adjusting the frequency or using specific encoding methods. The content of the data communication may include button status, device configuration information, etc.

[0079] The first threshold ensures that the power supply period is long enough so that the first device 60 can continue to receive sufficient power even without an internal battery.

[0080] The controller 10 is responsible for monitoring the entire process and dynamically adjusting the ratio of power supply periods to data communication periods according to a pre-set schedule or real-time demand.

[0081] The cycle period can be set to a length of 1-4 milliseconds, and the duty cycle can be 50%. Within a cycle, the power supply period and the data communication period each occupy half of the time. That is, if a cycle is 2 milliseconds, then each period lasts for 1 millisecond.

[0082] For example, in a 2-millisecond cycle, during the power supply period: in the first 1 millisecond, the wireless charging module 20 provides power to the first device 60 through the first coil 30. During the data communication period, in the last 1 millisecond, power transmission stops, and data exchange is performed using the same coil or an additional data channel.

[0083] During this period, the wireless charging module 20 is able to deliver power to the first device 60 with maximum efficiency, ensuring that the first device 60 can operate stably even without a built-in battery.

[0084] Secondly, such as Figure 2 As shown, this disclosure proposes an electronic device system, including: an electronic device, a first device 60, a second device 70, and a detection module 80;

[0085] The electronic device includes: a controller 10, a wireless charging module 20, a first coil 30, and a second coil 40;

[0086] The controller 10 is configured to control the wireless charging module 20 to be turned on by the first coil 30 and the second coil 40 at the same time, so as to power at least the first device 60 at the first coil 30 and the second device 70 at the second coil 40.

[0087] The detection module 80 is used to detect the connection status of the first device 60, the second device 70 and the electronic device, and to send a signal to determine the presence of the target coil.

[0088] Understandably, electronic devices, such as tablets, laptops, or smart terminals, act as main devices and possess wireless charging capabilities to control the charging behavior of peripherals. The controller 10 is responsible for the logic control and resource scheduling of the entire system; the wireless charging module 20 is a standard wireless charging module 20 that supports the Qi protocol and is used for energy output. The first coil 30 is located in a specific position (e.g., the bottom) to power the first device 60 (e.g., a keyboard). The second coil 40 is located in another position (e.g., the side) to power the second device 70 (e.g., a stylus).

[0089] In this device, the first device 60 and the second device 70 are auxiliary devices of the electronic device, typically input devices. For example, the first device 60 may be a wireless keyboard, which may not have a built-in battery, and the second device 70 may be a stylus or pen, which may or may not have a battery.

[0090] The detection module 80 can perform electromagnetic induction detection: when a device approaches the coil, it causes a change in the coil impedance, thereby determining whether a device is nearby.

[0091] It can be used for NFC detection, embedding an NFC chip in the device to verify the device's identity and connection status via NFC communication. It can also be used for proximity sensor / infrared detection: sensing whether a device is placed by physical distance.

[0092] The workflow is as follows: First, the detection module 80 continuously monitors the presence of any auxiliary devices around the first coil 30 and the second coil 40. When a device is placed on a coil, the detection module 80 identifies and records the presence of that device.

[0093] Secondly, the detection module 80 sends an "in-situ" signal and sends the detection results to the controller 10, reporting which coils have devices (i.e., "target coils").

[0094] For example: "The first coil 30 has a device (keyboard), and the second coil 40 has no device."

[0095] Secondly, the controller 10 determines which coil the wireless charging module 20 should prioritize powering based on the information provided by the detection module 80.

[0096] If two devices exist simultaneously, a priority strategy can be used (such as prioritizing power to the keyboard); or a polling strategy can be used to switch the power supply object in a time-sharing manner.

[0097] Finally, the controller 10 switches the output path of the wireless charging module 20 to the corresponding target coil through the radio frequency switch 50 or relay, so as to realize wireless charging of the corresponding device.

[0098] In some embodiments, the detection module 80 is a magnetic field sensor used to detect changes in the magnetic field when the first device 60 and the second device 70 are connected to the electronic device and to emit signals respectively, wherein the first device 60 and the second device 70 are auxiliary devices of the electronic device and are used as input elements of the electronic device.

[0099] Understandably, the detection module 80 is a magnetic field sensor, such as a Hall sensor. Its detection principle is that when the wireless charging module 20 transmits energy through the coil, it generates an alternating magnetic field around it. When a metal object or a device with a receiving coil approaches, this magnetic field changes, including changes in intensity or phase shifts. The magnetic field sensor can accurately measure these minute changes and convert them into electrical signals.

[0100] The first device 60 and the second device 70 may each be equipped with a receiving coil or other components that can affect the magnetic field distribution. Different types of devices can be distinguished by the different magnetic field change patterns caused by the coils.

[0101] When a user places the first device 60 (such as a keyboard) above the first coil 30, the magnetic field sensor detects the change in the magnetic field.

[0102] Similarly, when the second device 70 (such as a stylus) approaches the second coil 40, it will also cause a corresponding change in the magnetic field.

[0103] The magnetic field sensor converts the detected changes into electrical signals and sends them to the controller 10.

[0104] The controller 10 analyzes the current state based on the received signals, determines which device has been placed (i.e., "electronic device"), and adjusts the operating mode of the wireless charging module 20 accordingly.

[0105] During use, if only one device is detected, the controller 10 will directly start supplying power to that device.

[0106] If two devices exist simultaneously, the controller 10 can decide which device to charge first according to preset logic, or charge each device sequentially in a time-based polling manner.

[0107] By using a magnetic field sensor for detection, physical contact is eliminated, avoiding wear and tear on device surfaces and improving system reliability and lifespan. It can also accurately distinguish between different types of devices, even those that support wireless charging, by identifying them through their unique magnetic field response characteristics. Furthermore, the magnetic field sensor can be directly integrated near the coil, reducing the need for additional hardware and contributing to a clean, minimalist design.

[0108] In some embodiments, a switch 90 is also included, which is disposed on the wireless charging module 20;

[0109] The first link 100 has one end connected to the switch 90 of the wireless charging module 20 and the other end connected to the first coil 30. The first device 60 can be electrically connected to an electronic device through the first link 100.

[0110] The second link 110 has one end connected to the switch 90 of the wireless charging module 20 and the other end connected to the second coil 40. The second device 70 can be electrically connected to the electronic device through the second link 110.

[0111] Understandably, the switch 90 is a controllable circuit switching device that can be controlled by the controller 10. The switch 90 can be an RF switch 50, which switches between the first link 100 and the second link 110 according to the instructions of the controller 10, determining whether the energy output of the wireless charging module 20 is directed to the first coil 30 or the second coil 40.

[0112] The first link 100 connects one end to the switch 90 of the wireless charging module 20 and the other end to the first coil 30, thus forming an energy transmission path from the wireless charging module 20 to the first coil 30. After the first device 60 (such as a keyboard) is placed on the first coil 30, it can obtain power through this link.

[0113] The second link 110 connects one end to the switch 90 of the wireless charging module 20 and the other end to the second coil 40, thus forming an energy transmission path from the wireless charging module 20 to the second coil 40. A second device 70 (such as a stylus) can obtain power through this link after being placed on the second coil 40.

[0114] The controller 10 determines which device should be powered based on information fed back from the detection module 80 (such as whether the device is in place). The controller 10 issues a command to switch the switch 90 to the corresponding link (first link 100 or second link 110). The output energy of the wireless charging module 20 is only transferred to the target coil, thereby powering the device carried by that coil.

[0115] For example, the tablet computer has two coils on its side, which are used to connect the keyboard and the stylus respectively;

[0116] The system automatically identifies and switches links based on user actions to ensure that the main input devices are always in optimal power condition, making the user experience more convenient without having to manually plug and unplug the charging cable.

[0117] In some embodiments, when the first device 60 and the second device 70 are simultaneously connected to the electronic device, the switch 90 remains connected to the first link 100, and the second link 110 is in a standby state.

[0118] If the first device 60 is disconnected from the electronic device, while the second device 70 remains connected to the electronic device, the switch 90 switches to the connection state with the second link 110 to supply power and enable communication to the second device 70.

[0119] Understandably, when the first device 60 (such as a keyboard) and the second device 70 (such as a stylus) are simultaneously connected to the electronic device, the wireless charging module 20 maintains its connection with the first link 100 through the switch 90.

[0120] At this time, the wireless charging module 20 only supplies power to the first device 60, while the second link 110 is in standby mode.

[0121] If the controller detects that the first device 60 is disconnected from the electronic device (e.g., the user has taken the keyboard), the controller 10 will immediately issue a command to switch the switch 90 from the first link 100 to the second link 110.

[0122] After the switch is completed, the wireless charging module 20 begins to power the second device 70 and can simultaneously perform necessary data communication.

[0123] When the first device 60 and the second device 70 are connected simultaneously:

[0124] First, the user places a first device 60 (such as a keyboard) on the first coil 30 and a second device 70 (such as a stylus) on the second coil 40. Then, the detection module 80 identifies that both devices are within the coil range and sends a signal to the controller 10. Next, the controller 10, based on preset logic, controls the switch 90 to maintain connection with the first link 100, ensuring continuous power supply to the first device 60. During this time, the second link 110 remains in standby mode and does not consume additional energy.

[0125] In the event of the first device 60 disconnecting: First, the user removes the first device 60 (e.g., a keyboard), causing it to disconnect from the first coil 30. Then, the detection module 80 senses this change and notifies the controller 10. Next, upon receiving the notification, the controller 10 triggers the switching device 90 to switch from the first link 100 to the second link 110. Finally, the wireless charging module 20 reconfigures the output path and begins powering the second device 70.

[0126] This system maximizes the use of limited power supply capacity by rationally arranging the power supply sequence, prioritizing the normal operation of critical equipment while also taking into account the charging needs of other auxiliary equipment.

[0127] In some embodiments, when the electronic device enters a low-power standby mode and the second device 70 remains connected to the electronic device, the switch 90 is connected to the second link 110.

[0128] Understandably, when the main device (such as a tablet) enters a low-power standby state, the system can still identify and maintain support for devices that are still useful or require continuous power (such as a stylus) in the auxiliary devices, avoid continuing to power unnecessary devices (such as a keyboard) in an inactive state, save energy, and achieve minimal but effective energy maintenance or wake-up charging for the remaining connected devices.

[0129] In standby mode, the wireless charging module 20 can reduce its output power to only maintain the basic power requirements of the second device 70.

[0130] A periodic power supply strategy can be adopted, such as briefly activating wireless charging every few minutes to avoid continuous power consumption. A trigger-based wake-up mechanism can also be used, whereby the system can wake up from standby and resume full power supply when the second device 70 is detected to have usage intent (such as touching or moving).

[0131] Example of a use case: After taking notes on a tablet with a stylus at night, the user puts the device into standby mode. The keyboard is retracted, and the system automatically detects that it is not in place. At this time, the stylus is still magnetically attached to the tablet, and the system switches to power it to maintain a minimum battery level. When the user wakes up the device the next day, the stylus is fully charged and ready to use.

[0132] The above solution enables electronic devices to dynamically switch power supplies based on the connection status of auxiliary devices when entering low-power standby mode. This not only improves the system's energy efficiency but also enhances the device's practicality and responsiveness in low-power conditions.

[0133] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0134] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. An electronic device, characterized in that, include: Controller, wireless charging module, first coil and second coil; The controller is configured to control the wireless charging module to be connected to the first coil and the second coil in a time-sharing manner, so as to supply power to at least the first device at the first coil and the second device at the second coil.

2. The electronic device according to claim 1, characterized in that, Also includes: A radio frequency switch, coupled to the output path of the wireless charging module, connects the output path and the first coil in response to a first command from the controller to connect the first coil; and connects the output path and the second coil in response to a second command from the controller to connect the second coil.

3. The electronic device according to claim 1, characterized in that, The first coil and the second coil are spaced apart and disposed on the same side surface of the electronic device to simultaneously power and / or communicate with the first device and the second device, wherein the first device and the second device serve as auxiliary devices of the electronic device and are used as input elements of the electronic device.

4. The electronic device according to claim 1, characterized in that, When the first device is connected to the first coil and the second device is connected to the second coil, the wireless charging module supplies power to the first device; the first device is a keyboard. If the first device is disconnected from the first coil, the wireless charging module supplies power to the second device.

5. The electronic device according to claim 1, characterized in that, When powering the first device, the wireless charging module operates in a periodic alternation mode, each cycle including a power supply period and a data communication period, the duty cycle of which is greater than or equal to a first threshold, to ensure continuous power supply to the first device and execution of the data communication, wherein the first device does not include a battery.

6. An electronic device system, characterized in that, include: Electronic equipment, a first device, a second device, and a detection module; The electronic device includes: a controller, a wireless charging module, a first coil, and a second coil; The controller is configured to control the wireless charging module to be connected to the first coil and the second coil in a time-division manner, so as to at least power the first device at the first coil and the second device at the second coil; The detection module is used to detect the connection status of the first device, the second device and the electronic device, and to send a signal to determine the presence of the target coil.

7. The electronic device system according to claim 6, characterized in that, The detection module is a magnetic field sensor, used to detect changes in the magnetic field when the first device, the second device, and the electronic device are connected and to emit signals respectively, wherein the first device and the second device are auxiliary devices of the electronic device and are used as input elements of the electronic device.

8. The electronic device system according to claim 6, characterized in that, Also includes: A switching element, wherein the switching element is disposed in the wireless charging module; The first link has one end connected to the switch of the wireless charging module and the other end connected to the first coil, and the first device can be electrically connected to the electronic device through the first link; The second link has one end connected to the switch of the wireless charging module and the other end connected to the second coil, enabling the second device to be electrically connected to the electronic device via the second link.

9. The electronic device system according to claim 8, characterized in that, When both the first device and the second device are simultaneously connected to the electronic device, the switch remains connected to the first link, while the second link is in a standby state. If the first device is disconnected from the electronic device, while the second device remains connected to the electronic device, the switch switches to a state of connection with the second link to supply power and facilitate communication to the second device.

10. The electronic device system according to claim 8, characterized in that, When the electronic device enters a low-power standby mode and the second device remains connected to the electronic device, the switch is connected to the second link.

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