Control methods and electronic equipment

Abstract

This application discloses a control method and an electronic device. The method includes: determining whether a second electronic device is placed on the touch panel of a first electronic device; if the second electronic device is determined to be placed on the touch panel, controlling a first electrode layer and an opposing second electrode layer to form a charging capacitor unit; controlling a first power module of the first electronic device to provide power to the first electrode layer to power the second electronic device through the charging capacitor unit; or, controlling the first power module to receive power transmitted by the second electronic device using the charging capacitor unit. This control method enables the touch panel of the first electronic device to have wireless charging functionality, which simplifies the device structure, reduces production costs, and improves the user experience.

Description

Technical Field

[0001] This application relates to the field of wireless charging technology, and in particular to a control method and electronic device. Background Technology

[0002] With the development and application of wireless charging technology, more and more electronic devices are using it, making them increasingly convenient to use. However, existing wireless charging technologies typically require the electronic device to have a built-in wireless charging coil, relying on the principle of electromagnetic induction to achieve wireless charging. This type of wireless charging not only has high hardware costs but also occupies internal space in the electronic device, hindering the achievement of a thinner and lighter design. Summary of the Invention

[0003] This application provides a control method and an electronic device. The technical solutions adopted in the embodiments of this application are as follows:

[0004] One embodiment of this application provides a control method, including:

[0005] Determine whether a second electronic device is placed on the touch panel of a first electronic device; wherein the touch panel includes a first electrode layer, the first electrode layer being used to detect the touch position of a touch object on the touch panel; the second electronic device has a second electrode layer, the second electrode layer being capable of forming a charging capacitor unit with the first electrode layer;

[0006] When it is determined that the second electronic device is placed on the touch panel, the first electrode layer and the opposite second electrode layer are controlled to form the charging capacitor unit;

[0007] The first power module of the first electronic device is controlled to provide power to the first electrode layer so as to power the second electronic device through the charging capacitor unit; or, the first power module is controlled to receive power transmitted by the second electronic device using the charging capacitor unit.

[0008] In some embodiments, the first electrode layer includes a plurality of first electrode units uniformly arranged along the touch panel, and the second electrode layer includes a pair of second sub-electrodes; the step of controlling the first electrode layer and the opposite second electrode layer to form the charging capacitor unit includes:

[0009] Determine the first position information of the pair of second sub-electrodes;

[0010] Based on the first position information, the first electrode unit opposite to the pair of second sub-electrodes is controlled to form a pair of first sub-electrodes, so that the pair of first sub-electrodes are respectively coupled to the pair of second sub-electrodes to form a pair of coupling capacitors, so as to form the charging capacitor unit through the pair of coupling capacitors.

[0011] In some embodiments, determining the first position information of the pair of second sub-electrodes includes:

[0012] A detection current is applied to the first electrode unit in the first electrode layer, and the first electrical parameters of each first electrode unit are obtained;

[0013] Based on the first electrical parameters, the first position information of the pair of second sub-electrodes is determined.

[0014] In some embodiments, the first electrode layer includes a plurality of first electrode units uniformly arranged along the touch panel, and the second electrode layer includes a plurality of second electrode units uniformly arranged along the surface of the second electronic device; the step of controlling the first electrode layer and the opposite second electrode layer to form the charging capacitor unit includes:

[0015] Negotiate the second position information of the charging capacitor unit with the second electronic device;

[0016] Based on the second position information, several first electrode units are controlled to form a pair of first sub-electrodes, such that the pair of first sub-electrodes are respectively opposite to and coupled with a pair of second sub-electrodes of the second electronic device to form a pair of coupling capacitors, so as to form the charging capacitor unit through the pair of coupling capacitors;

[0017] The pair of second sub-electrodes is formed by a number of second electrode units.

[0018] In some embodiments, negotiating the second location information of the charging capacitor unit with the second electronic device includes:

[0019] The second location information is negotiated based on the first power parameters of the first electronic device and the second power parameters of the second electronic device.

[0020] In some embodiments, determining whether a second electronic device is placed on the touch panel of the first electronic device includes:

[0021] When it is determined that an object to be detected is placed on the touch panel, the third electrode layer of the first electronic device is de-energized; wherein, the third electrode layer is opposite to the first electrode layer and can be coupled to form a touch capacitor unit, and the touch capacitor unit is used to detect the touch position of the touch object on the touch panel;

[0022] The first electrode layer outputs a detection signal conforming to a preset protocol to request the detection of whether the object to be detected belongs to the second electronic device.

[0023] Upon receiving a feedback signal corresponding to the detection signal, the object to be detected is determined to be a second electronic device.

[0024] In some embodiments, the first power module controlling the first electronic device to provide power to the first electrode layer to power the second electronic device through the charging capacitor unit includes:

[0025] Control the first power module to output DC power;

[0026] The DC power output from the first power module is converted into AC power by a converter;

[0027] The AC power output from the converter is transformed by a transformer to form AC power that is compatible with the second electronic device.

[0028] In some embodiments, the conversion of the DC power output from the first power module into AC power via a converter includes:

[0029] A pulse signal is sent to the converter, causing the converter to convert the DC power output from the first power module into AC power based on the pulse signal.

[0030] In some embodiments, controlling the first power module to receive power transmitted by the second electronic device using the charging capacitor unit includes:

[0031] The alternating current transmitted by the charging capacitor unit to the second electronic device is transformed by a transformer to form an alternating current that is compatible with the first electronic device.

[0032] The converter converts the AC power compatible with the first electronic device into DC power and outputs it to the first power module.

[0033] Another aspect of this application provides an electronic device, including:

[0034] A touch panel having a first electrode layer for detecting the touch position of a touch subject on the touch panel;

[0035] A controller is configured to determine whether a second electronic device is placed on the touch panel; wherein the second electronic device has a second electrode layer, the second electrode layer being capable of forming a charging capacitor unit with the first electrode layer; when it is determined that the second electronic device is placed on the touch panel, the controller controls the first electrode layer and the opposite second electrode layer to form the charging capacitor unit;

[0036] A first power module is configured to provide power to the first electrode layer under the control of the controller, so as to power the second electronic device through the charging capacitor unit; or, under the control of the controller, to receive power transmitted by the second electronic device using the charging capacitor unit.

[0037] The control method of this application embodiment, when it is determined that a second electronic device is placed on the touch panel of a first electronic device, couples the first electrode layer of the touch panel with the second electrode layer of the second electronic device to form a charging capacitor unit. The first electronic device can supply power to the second electronic device or obtain power from the second electronic device through this charging capacitor unit, thus realizing wireless charging. In this way, the touch panel serves as both an input device for users to control the first electronic device via touch and a wireless charging device to wirelessly charge the second electronic device or wirelessly obtain power from the second electronic device. This expands the functionality of the touch panel, allowing the first electronic device to have wireless charging capabilities without the need for a separate wireless charging device. This simplifies the device structure, reduces production costs, and improves the user experience. Attached Figure Description

[0038] Figure 1 This is a flowchart of the control method according to an embodiment of this application;

[0039] Figure 2 This is a schematic diagram of a scenario illustrating the control method according to an embodiment of this application;

[0040] Figure 3 This is a schematic diagram of an electronic device according to an embodiment of this application;

[0041] Figure 4 A schematic diagram illustrating the wireless charging process for the first and second electronic devices.

[0042] Figure 5 This is a schematic diagram of one embodiment of step S120 in the control method of this application;

[0043] Figure 6 This is a schematic diagram of another embodiment of step S120 in the control method of this application. Detailed Implementation

[0044] Various embodiments and features of this application are described herein with reference to the accompanying drawings.

[0045] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this application will be apparent to those skilled in the art.

[0046] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0047] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0048] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0049] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0050] Specific embodiments of this application are described thereafter with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use this application in a variety of substantially any suitable detailed structures.

[0051] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.

[0052] See Figures 1 to 4 As shown in the figure, this application provides a control method, which may include the following steps.

[0053] S110, determine whether a second electronic device 20 is placed on the touch panel 12 of the first electronic device 10; wherein, the touch panel 12 includes a first electrode layer 17, the first electrode layer 17 is used to detect the touch position of the touch body on the touch panel 12; the second electronic device 20 has a second electrode layer 21, the second electrode layer 21 can form a charging capacitor unit with the first electrode layer 17.

[0054] The first electronic device 10 is the execution subject of the control method in this embodiment of the application, and the first electronic device 10 has a capacitive touch panel 12. Optionally, the first electronic device 10 may be, for example, a laptop computer, tablet computer, smartphone, smart car, or other electronic device with a touch panel 12.

[0055] The touch panel 12 can be a separately configured capacitive touch device for performing touch operations. For example, the touch panel 12 can be a touchpad on the C-side of a laptop computer. The touch panel 12 can also be a capacitive touch component mounted on a display screen, which together with the display screen can form a capacitive touch screen.

[0056] The second electronic device 20 has a second electrode layer 21. When a user places the second electronic device 20 on the touch panel 12 of the first electronic device 10, and the second electrode layer 21 is opposite to the first electrode layer 17, the second electrode layer 21 can form a charging capacitor unit with the first electrode layer 17. This charging capacitor unit may include at least a pair of coupling capacitors 30. The positive and negative terminals of the first power module 14 of the first electronic device 10 are respectively connected to the pair of coupling capacitors 30, and the positive and negative terminals of the second power module 24 of the second electronic device 20 are also respectively connected to the pair of coupling capacitors 30 to form a circuit, such as... Figure 3 and Figure 4 As shown, this charging capacitor unit, as a power transfer component for capacitive wireless charging, is capable of transferring alternating current between the first electronic device 10 and the second electronic device 20.

[0057] The second electronic device 20 may be, for example, a laptop, tablet, smartphone, or other electronic device having a second electrode layer 21 and capable of capacitive wireless charging. The second electrode layer 21 may be an electrode layer specifically designed for wireless charging, disposed on the housing of the second electronic device 20, such as a metal plate or metal layer disposed on the surface of the housing. The second electrode layer 21 may also be similar to the first electrode layer 17, serving as the electrode layer of the touch panel of the second electronic device 20, used to detect the touch position of the touch subject on the touch panel of the second electronic device 20.

[0058] In practical applications, it can first be determined whether an object to be detected is placed on the touch panel 12 of the first electronic device 10. If it is determined that an object to be detected is placed on the touch panel 12, it can be determined whether the object to be detected is the second electronic device 20. There are various ways to determine whether an object to be detected is placed on the touch panel 12, such as based on capacitance, pressure, or photoelectric sensing. Determining whether the object to be detected is the second electronic device 20 can be achieved based on feature recognition or protocol interaction. For example, the object to be detected can be identified as the second electronic device 20 by recognizing the feature signals of the second electrode layer 21.

[0059] S120, when it is determined that the second electronic device 20 is placed on the touch panel, the first electrode layer 17 and the opposite second electrode layer 21 are controlled to form the charging capacitor unit.

[0060] The statement that a second electronic device 20 is placed on the touch panel 12 should be understood as meaning that the second electronic device 20 is placed on the touch panel 12, and the second electrode layer 21 is opposite to the first electrode layer 17, so that the first electrode layer 17 and the second electrode layer 21 can couple to form a charging capacitor unit, so that the first electronic device 10 and the second electronic device 20 can use the charging capacitor unit to transfer power. The coupling of the first electrode layer 17 and the second electrode layer 21 to form a charging capacitor unit is not limited to physically coupling to form a pair of coupling capacitors 30, but should also include that the first electronic device 10 and the second electronic device 20 support the same wireless charging protocol, so that they can use the pair of coupling capacitors 30 for wireless charging.

[0061] If a second electronic device 20 is placed on the touch panel 12, the first electronic device 10 can interact with the second electronic device 20 through the first electrode layer 17 and the second electrode layer 21 based on the wireless charging protocol jointly supported by the first electronic device 10 and the second electronic device 20, to determine whether the conditions for power transmission are met. If the conditions for power transmission are met, the first electrode layer 17 and the second electrode layer 21 can be controlled to form a pair of coupling capacitors 30.

[0062] Optionally, the interaction between the first electronic device 10 and the second electronic device 20 can be controlled to determine information such as the remaining power of the first electronic device 10, the remaining power of the second electronic device 20, whether the first electronic device 10 and the second electronic device 20 are connected to the mains power supply and the power parameters of the first electronic device 10 and the second electronic device 20, and based on the above information, it can be determined whether the first electronic device 10 and the second electronic device 20 meet the power transmission conditions.

[0063] Optionally, if the power parameters of the first electronic device 10 and the second electronic device 20 are matched, and one of the first electronic device 10 and the second electronic device 20 needs to be charged while the other can provide power, it can be determined that the first electronic device 10 and the second electronic device 20 meet the power transmission conditions.

[0064] For example, if the power parameters of the first electronic device 10 and the second electronic device 20 are matched, and the remaining power of the first electronic device 10 is greater than a first threshold while the remaining power of the second electronic device 20 is less than a second threshold, then the power transmission conditions are met. Alternatively, if the power parameters of the first electronic device 10 and the second electronic device 20 are matched, and the remaining power of both the first electronic device 10 and the second electronic device 20 is greater than the first threshold, then the first electronic device 10 and the second electronic device 20 are not met.

[0065] Of course, in actual implementation, the power transmission conditions are usually not unique. Multiple power transmission conditions are usually configured according to actual needs. If any one of the power transmission conditions is met, the first electronic device 10 and the second electronic device 20 are considered to meet the power transmission conditions.

[0066] S130, control the first power module 14 of the first electronic device 10 to provide power to the first electrode layer 17 so as to power the second electronic device 20 through the charging capacitor unit; or, control the first power module 14 to receive the AC power transmitted by the second electronic device 20 using the charging capacitor unit.

[0067] The first electronic device 10 and the second electronic device 20 can negotiate which device will act as the power supplier and which will act as the power consumer based on a wireless charging protocol. For example, during the process of the first electronic device 10 and the second electronic device 20 exchanging information to determine whether the conditions for power transmission are met, they can also negotiate the direction of power transmission, that is, determine which device will act as the power supplier.

[0068] For example, if the first electronic device 10 is connected to a mains power source, the second electronic device 20 is not connected to a mains power source, and the remaining power of the second electronic device 20 is insufficient, the first electronic device 10 can be determined as the power supplier, and the first power module 14 of the first electronic device 10 can be controlled to provide AC power to the first electrode layer 17 so as to supply power to the second electronic device 20 through the charging capacitor unit.

[0069] For example, taking a laptop computer as the first electronic device 10 and a smartphone as the second electronic device 20, a first touchscreen can be provided on the C-side of the laptop computer. The touch component of the first touchscreen includes a first electrode layer 17, and the touch component of the second touchscreen of the smartphone can include a second electrode layer 21. When the remaining battery power of the laptop computer is low and the remaining battery power of the smartphone is relatively high, the smartphone can be placed on the first touchscreen of the laptop computer with the second touchscreen facing the first touchscreen. The laptop computer and the smartphone can interact to determine that the smartphone is the power supplier and the laptop computer is the power consumer, and control the first power module 14 of the laptop computer to receive AC power from the smartphone through the charging capacitor unit.

[0070] The control method of this application embodiment, when it is determined that a second electronic device 20 is placed on the touch panel 12 of the first electronic device 10, controls the coupling of the first electrode layer 17 of the touch panel 12 and the second electrode layer 21 of the second electronic device 20 to form a charging capacitor unit. The first electronic device 10 can supply power to the second electronic device 20 or obtain power from the second electronic device 20 through this charging capacitor unit, thereby realizing wireless charging. In this way, the touch panel 12 serves as both an input device for users to control the first electronic device 10 via touch and a wireless charging device to wirelessly charge the second electronic device 20 or wirelessly obtain power from the second electronic device 20. This expands the functionality of the touch panel 12, allowing the first electronic device 10 to have wireless charging functionality without the need for a separate wireless charging device. This simplifies the device structure, reduces production costs, and improves the user experience.

[0071] In some embodiments, step S110, determining whether a second electronic device 20 is placed on the touch panel 12 of the first electronic device 10, may include...

[0072] S111, when it is determined that an object to be detected is placed on the touch panel 12, the third electrode layer of the first electronic device 10 is de-energized; wherein, the third electrode layer is opposite to the first electrode layer 17 and can be coupled to form a touch capacitor unit, and the touch capacitor unit is used to detect the touch position of the touch body on the touch panel 12.

[0073] S112, a detection signal conforming to a preset protocol is output through the first electrode layer 17 to request the detection of whether the object to be detected belongs to the second electronic device 20.

[0074] S113, upon receiving a feedback signal corresponding to the detection signal, the object to be detected is determined to be the second electronic device 20.

[0075] In some cases, the first electronic device 10 does not detect the touch position of the touch subject on the touch panel 12 solely through the first electrode layer 17. Instead, it includes opposing first electrode layers 17 and third electrode layers, which can be coupled to form a touch capacitor unit. This touch capacitor unit may include an array of sub-capacitors. For example, the first electrode layer 17 may include horizontally arranged grid-like electrodes, and the third electrode layer may include vertically arranged grid-like electrodes. The intersection of the horizontal and vertical electrodes forms a sub-capacitor. When the touch subject contacts the touch panel 12, it affects the capacitance of the corresponding sub-capacitor. Based on this principle, the touch position of the touch subject can be detected. Object surfaces typically carry surface charges, and when an object is placed on the touch panel 12, the capacitance of the sub-capacitor usually changes. Therefore, in this application, this principle can also be used to detect whether a target object is placed on the touch panel 12. Of course, other principles, such as pressure or current, can also be used to detect whether a target object is placed on the touch panel 12.

[0076] The preset protocol is the wireless charging protocol supported by the first electronic device 10. If it is determined that an object to be detected is placed on the touch panel 12, such as... Figure 2 As shown. The third electrode layer can be powered off, controlling the communication module of the first electronic device 10 to output a detection signal conforming to the wireless charging protocol via the first electrode layer 17. This detection signal can be an AC signal with a specific voltage and frequency. If the second electronic device 20 also supports the wireless charging protocol, its communication module can receive and parse the detection signal via the second electrode layer 21, and send a feedback signal to the first electronic device 10 according to the wireless charging protocol. If the object to be detected is not an electronic device, or even if it is an electronic device but does not support the wireless charging protocol, it will not send a feedback signal to the first electronic device 10. Therefore, after sending the detection signal via the first electrode layer 17, if the first electronic device 10 can receive a feedback signal from the second electronic device 20 via the first electrode layer 17 within a preset time, it can determine that the object to be detected is the second electronic device 20.

[0077] Cooperate Figure 5 As shown, in some embodiments, the first electrode layer 17 includes a plurality of first electrode units 18 uniformly arranged along the touch panel 12, and the second electrode layer 21 includes a pair of second sub-electrodes 23. Step S120, controlling the first electrode layer 17 and the second electrode layer 21 to form the charging capacitor unit, may include...

[0078] S121, determine the first position information of the pair of second sub-electrodes 23.

[0079] S122, based on the first position information, control the first electrode unit 18 opposite to the pair of second sub-electrodes 23 to form a pair of first sub-electrodes 19, so that the pair of first sub-electrodes 19 are respectively coupled to the pair of second sub-electrodes 23 to form a pair of coupling capacitors 30, so as to form the charging capacitor unit through the pair of coupling capacitors 30.

[0080] That is, the first electrode layer 17 includes a plurality of first electrode units 18. The first electrode unit 18 may be, for example, a sensing block uniformly arranged along the first electrode layer 17, and the sensing block serves as a sensing unit for sensing the touch position of the touch subject in the first electrode layer 17. For example, the sensing block may be an indium tin oxide (ITO) block disposed in the first electrode layer 17. Of course, the first electrode unit 18 may also be a sensing unit with other structures.

[0081] The second electrode layer 21 includes a pair of second sub-electrodes 23 with relatively fixed size and position. These second sub-electrodes 23 may be electrodes specifically designed for capacitive charging. Alternatively, they may be electrodes formed from, for example, the second electrode layer 21 of a touch panel, and these second sub-electrodes may be configured to have fixed size and position due to limitations imposed by the circuit connections, protocols, or other factors of the second electrode layer 21.

[0082] Since the second electronic device 20 can form a pair of second sub-electrodes 23 with relatively fixed size and position, when it is determined that the second electronic device 20 is placed on the touch panel 12, the first position information of the pair of second sub-electrodes 23 can be obtained, driving the first electrode unit 18 in the first electrode layer 17 to form a pair of first sub-electrodes 19, so that the pair of first sub-electrodes 19 are respectively opposite to the pair of second sub-electrodes 23, thereby coupling to form a pair of coupling capacitors 30, and forming a charging capacitor unit through the pair of coupling capacitors 30, such as Figure 5 As shown.

[0083] For example, based on the first position information, the first electrode unit 18 that is offset from the pair of second sub-electrodes 23 is de-energized, and the first electrode unit 18 that is opposite to the pair of second sub-electrodes 23 is energized, and the pair of first sub-electrodes 19 are formed through these energized first electrode units 18.

[0084] In practical implementation, the first position information of the pair of second sub-electrodes 23 can be obtained in various ways. For example, if it is determined that a second electronic device 20 is placed on the touch panel 12 of the first electronic device 10, the first electronic device 10 can interact with the second electronic device 20 using the first electrode layer 17 based on a wireless charging protocol to obtain the first position information from the second electronic device 20. Alternatively, the first electronic device 10 can also detect the position of the pair of second sub-electrodes 23.

[0085] In some embodiments, step S121, determining the first position information of the pair of second sub-electrodes 23, may include:

[0086] A detection current is applied to the first electrode unit 18 in the first end electrode layer, and the first electrical parameters of each first electrode unit 18 are obtained.

[0087] Based on the first electrical parameters, the first position information of the pair of second sub-electrodes 23 is determined.

[0088] The first electrode unit 18, which is opposite to the second sub-electrode 23, is coupled with the second sub-electrode 23 to form a coupling electrode. When a high-frequency current is applied to the first electrode unit 18, the coupling current is equivalent to a conductor. The high-frequency current on the first electrode unit 18 can flow through the coupling current to the side of the second sub-electrode 23. Therefore, the current, voltage and other electrical parameters of the first electrode unit 18, which is offset from the second sub-electrode 23, will be different from those of the first electrode unit 18, which is opposite to the second sub-electrode 23.

[0089] Based on this, if it is determined that a second electronic device 20 is placed on the touch panel 12 of the first electronic device 10, a detection current can be applied to the first electrode unit 18 in the entire first electrode layer 17, and the first power parameters of each first electrode unit 18 can be obtained. By comparing each first power parameter, the first electrode unit 18 opposite to the second sub-electrode 23 can be accurately determined, that is, the first position information of the pair of second sub-electrodes 23 can be determined.

[0090] Taking the touch panel 12 of the first electronic device 10 as an example, which may also include a third electrode layer, a sub-capacitor array can be formed between the first electrode layer 17 and the third electrode layer. When the second electronic device 20 is placed on the touch panel 12, the second sub-electrode 23 is directly opposite to the first electrode layer 17, which will affect the capacitance of the sub-capacitors in the array. Therefore, the purpose of determining the first position information can also be achieved by detecting the capacitance of the sub-capacitors. It should be noted that the above method for detecting the first position information is only an example, and in specific implementations, it is not limited to detecting the first position information based on the above principle.

[0091] Cooperate Figure 6 As shown, in some embodiments, the first electrode layer 17 includes a plurality of uniformly arranged first electrode units 18, and the second electrode layer 21 includes a plurality of uniformly arranged second electrode units 22. Step S120, controlling the first electrode layer 17 and the second electrode layer 21 to form the charging capacitor unit, may include...

[0092] S123, negotiate the second position information of the charging capacitor unit with the second electronic device 20.

[0093] S124, based on the second position information, control a plurality of first electrode units 18 to form a pair of first sub-electrodes 19, such that the pair of first sub-electrodes 19 are respectively opposite to and coupled to a pair of second sub-electrodes 23 of the second electronic device 20 to form a pair of coupling capacitors 30, so as to form the charging capacitor unit through the pair of coupling capacitors 30; wherein, the pair of second sub-electrodes 23 are formed by a plurality of activated second electrode units 22.

[0094] When the touch panel 12 of the first electronic device 10 has an array of first electrode units 18 and the second electronic device 20 has an array of second electrode units 22, the size and position of the coupling capacitor 30 can be variable when the first electronic device 10 and the second electronic device 20 perform wireless charging based on the capacitive wireless charging principle. The first electronic device 10 can negotiate the size and position of the coupling capacitor 30 with the second electronic device 20 based on the wireless charging protocol, that is, negotiate the second position information of the charging capacitor unit.

[0095] Subsequently, the first electronic device 10 can, based on the second position information, control the power-on of the first electrode unit 18 corresponding to the second position information, and control the power-off of the remaining first electrode units 18 in the first electrode layer 17, to form a pair of first sub-electrodes 19. The second electronic device 20 will also, based on the second position information, control the power-on of the second electrode unit 22 corresponding to the second position information, and control the power-off of the remaining second electrode units 22 in the second electrode layer 21, to form a pair of second sub-electrodes 23. The pair of first sub-electrodes 19 and the pair of second sub-electrodes 23 are opposite each other and coupled to form a pair of coupling capacitors 30, which together form a charging capacitor unit, such as... Figure 6 As shown.

[0096] In some embodiments, step S123, negotiating the second location information of the charging capacitor unit with the second electronic device 20, may include...

[0097] The second location information is negotiated based on the first power parameters of the first electronic device 10 and the second power parameters of the second electronic device 20.

[0098] The first power supply parameter may include parameters such as voltage, current and frequency when the first power supply module 14 outputs and inputs electrical energy, and the second power supply parameter may include parameters such as voltage, current and frequency when the second power supply module 24 outputs and inputs electrical energy.

[0099] The first electronic device 10 can interact with the second electronic device 20 based on a wireless charging protocol to obtain the second power parameters of the second electronic device 20. Then, based on its own first power parameters and the second power parameters of the second electronic device 20, it determines the wireless charging parameters for wireless charging. These wireless charging parameters may include parameters such as voltage, current, and frequency. Subsequently, based on the determined wireless charging parameters, the second location information is determined.

[0100] For example, when the first electronic device 10 and the second electronic device 20 negotiate and determine the current value for wireless charging, the area of ​​the coupling capacitor 30 can be determined based on, for example, this current value. If the current value during wireless charging between the two is large, the area of ​​the coupling capacitor 30 can be configured to be large; if the current value during wireless charging between the two is small, the area of ​​the coupling capacitor 30 can be configured to be small. Subsequently, second position information is negotiated and determined based on the area of ​​the coupling capacitor 30.

[0101] Taking a laptop computer as the first electronic device 10 and a smartphone as the second electronic device 20 as an example, when the area of ​​the coupling capacitor 30 is determined, the second electrode layer 21, which has the smaller area between the first electrode layer 17 and the second electrode layer 21, can be divided into two regions. A second sub-electrode 23 of that area is controlled to be located in the middle of the two regions. The first electronic device 10 controls the first electrode layer 17 to form a first sub-electrode 19 at a position opposite to the second sub-electrode 23.

[0102] Of course, the above-described method of negotiating the second location information is merely exemplary. In specific implementation, as long as the first electronic device 10 and the second electronic device 20 can form a pair of coupling capacitors 30 through negotiating the second location information, and form the charging capacitor unit through the pair of coupling capacitors 30, it is sufficient.

[0103] In some embodiments, step S130, in which the first power module 14 controlling the first electronic device 10 provides AC power to the first electrode layer 17 to power the second electronic device 20 through the charging capacitor unit, may include...

[0104] S131, control the first power module 14 to output DC power;

[0105] S132, the DC power output from the first power module 14 is converted into AC power by the converter 15;

[0106] S133, the AC power output from the converter 15 is transformed by the transformer 16 to form AC power that is compatible with the second electronic device 20.

[0107] That is, the first electronic device 10 includes a first power module 14, a converter 15, and a transformer 16, which are connected sequentially to the first electrode layer 17. When the first electronic device 10 supplies power to the second electronic device 20, it can control the first power module 14 to output DC power, which is then converted into AC power by the converter 15. The AC power output by the converter 15 is then transformed by the transformer 16 to form AC power compatible with the second electronic device 20. Optionally, if the wireless charging parameters have been negotiated in advance, the converter 15 and the transformer 16 can be controlled to operate based on the wireless charging parameters.

[0108] In some embodiments, the conversion of the DC power output from the first power module 14 into AC power via the converter 15 includes:

[0109] A pulse signal is sent to the converter 15, causing the converter 15 to convert the DC power output from the first power module 14 into AC power based on the pulse signal.

[0110] That is, when the converter 15 of the first electronic device 10 is a PWM converter 15, a pulse generator can be controlled to generate a pulse signal based on, for example, wireless charging parameters, and send the pulse signal to the converter 15 so that the converter 15 converts the DC power output from the first power module 14 into AC power based on the pulse signal. This inverter method has a simple circuit structure and is easy to implement.

[0111] In some embodiments, controlling the first power module 14 to receive AC power transmitted by the second electronic device 20 using the charging capacitor unit includes:

[0112] The alternating current transmitted by the charging capacitor unit to the second electronic device 20 is transformed by the transformer 16 to form an alternating current that is compatible with the first electronic device 10.

[0113] The converter 15 converts the AC power adapted to the first electronic device 10 into DC power and outputs it to the first power module 14.

[0114] That is, when the second electronic device 20 supplies power to the first electronic device 10, the first electronic device 10 receives AC power from the second electronic device 20 through the charging capacitor unit, and then the received AC power is transformed by the transformer 16 to adjust the voltage of the AC power to match the first power module 14. Then, the converter 15 rectifies the AC power output from the transformer 16 into DC power and outputs it to the first power module 14. The first power module 14 can use this electrical energy to charge the battery of the first electronic device 10, or it can directly supply power to the load of the first electronic device 10.

[0115] See Figure 4 and Figure 5 As shown, the electronic device in this embodiment of the application includes a touch panel 12, a controller 13, and a first power module 14.

[0116] The touch panel 12 has a first electrode layer 17, which is used to detect the touch position of the touch body on the touch panel 12.

[0117] The controller 13 is used to determine whether a second electronic device 20 is placed on the touch panel 12; wherein the second electronic device 20 has a second electrode layer 21, and the second electrode layer 21 can form a charging capacitor unit with the first electrode layer 17; when it is determined that the second electronic device 20 is placed on the touch panel, the controller controls the first electrode layer 17 and the opposite second electrode layer 21 to form the charging capacitor unit.

[0118] The first power module 14 is used to provide power to the first electrode layer 17 under the control of the controller 13, so as to power the second electronic device 20 through the charging capacitor unit; or, it is used to receive power transmitted by the second electronic device 20 using the charging capacitor unit under the control of the controller 13.

[0119] In some embodiments, the first electrode layer 17 includes a plurality of first electrode units 18 uniformly arranged along the touch panel 12, and the second electrode layer 21 includes a pair of second sub-electrodes 23; the controller 13 is specifically used for:

[0120] Determine the first position information of the pair of second sub-electrodes 23;

[0121] Based on the first position information, the first electrode unit 18 opposite to the pair of second sub-electrodes 23 is controlled to form a pair of first sub-electrodes 19, so that the pair of first sub-electrodes 19 are respectively coupled to the pair of second sub-electrodes 23 to form a pair of coupling capacitors 30, so as to form the charging capacitor unit through the pair of coupling capacitors 30.

[0122] In some embodiments, the controller 13 is specifically used for:

[0123] A detection current is applied to the first electrode unit 18 in the first electrode layer 17, and the first electrical parameters of each first electrode unit 18 are obtained.

[0124] Based on the first electrical parameters, the first position information of the pair of second sub-electrodes 23 is determined.

[0125] In some embodiments, the first electrode layer 17 includes a plurality of first electrode units 18 uniformly arranged along the touch panel 12, and the second electrode layer 21 includes a plurality of second electrode units 22 uniformly arranged along the surface of the second electronic device 20; the controller 13 is specifically used for:

[0126] Negotiate the second position information of the charging capacitor unit with the second electronic device 20;

[0127] Based on the second position information, several first electrode units 18 are controlled to form a pair of first sub-electrodes 19, such that the pair of first sub-electrodes 19 are respectively opposite to and coupled with a pair of second sub-electrodes 23 of the second electronic device 20 to form a pair of coupling capacitors 30, so as to form the charging capacitor unit through the pair of coupling capacitors 30.

[0128] The pair of second sub-electrodes 23 are formed by a plurality of activated second electrode units 22.

[0129] In some embodiments, the controller 13 is specifically used for:

[0130] The second location information is negotiated based on the first power parameters of the first electronic device 10 and the second power parameters of the second electronic device 20.

[0131] In some embodiments, the controller 13 is specifically used for:

[0132] When it is determined that an object to be detected is placed on the touch panel 12, the third electrode layer of the first electronic device 10 is de-energized; wherein, the third electrode layer is opposite to the first electrode layer 17 and can be coupled to form a touch capacitor unit, and the touch capacitor unit is used to detect the touch position of the touch body on the touch panel 12.

[0133] The first electrode layer 17 outputs a detection signal conforming to a preset protocol to request the detection of whether the object to be detected belongs to the second electronic device 20.

[0134] Upon receiving a feedback signal corresponding to the detection signal, the object to be detected is determined to be the second electronic device 20.

[0135] In some embodiments, the electronic device further includes a converter 15 and a transformer 16;

[0136] The first power module 14 is used to output DC power under the control of the controller 13;

[0137] The converter 15 is used to convert the DC power output from the first power module 14 into AC power.

[0138] The transformer 16 is used to transform the AC power output by the converter 15 to form AC power that is compatible with the second electronic device 20.

[0139] In some embodiments, the controller 13 is further configured to:

[0140] A pulse signal is sent to the converter 15, causing the converter 15 to convert the DC power output from the first power module 14 into AC power based on the pulse signal.

[0141] In some embodiments, the electronic device further includes a converter 15 and a transformer 16;

[0142] The transformer 16 is used to transform the AC power transmitted by the second electronic device 20 using the charging capacitor unit to form AC power that is compatible with the first electronic device 10.

[0143] The converter 15 is used to convert the AC power adapted to the first electronic device 10 into DC power and output it to the first power module 14.

[0144] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A control method, comprising: Determine whether a second electronic device is placed on the touch panel of a first electronic device; wherein, the touch panel includes a first electrode layer, the first electrode layer being used to detect the touch position of a touch object on the touch panel; the second electronic device has a second electrode layer, the second electrode layer being able to form a charging capacitor unit with the first electrode layer; the touch panel is an input device, allowing a user to control the first electronic device by touch; When it is determined that the second electronic device is placed on the touch panel, based on the wireless charging protocol jointly supported by the first electronic device and the second electronic device, the first electronic device is controlled to interact with the second electronic device through the first electrode layer and the second electrode layer. Based on the information interaction, it is determined whether the power transmission conditions are met, and the power supply device and the power receiving device are automatically determined. When it is determined that the first electronic device and the second electronic device meet the power transmission conditions, the first electronic device and the second electronic device negotiate based on the wireless charging protocol to determine the formation position of the charging capacitor unit on the first electrode layer, and the first electrode layer is controlled to form the charging capacitor unit with the opposite second electrode layer at the position. The information interaction includes the current device parameters of the first electronic device and the second electronic device. When the first electronic device is the power supplier, the first power module is controlled to output DC power; the DC power output by the first power module is converted into AC power by a converter; the AC power output by the converter is transformed by a transformer to form AC power compatible with the second electronic device; or, when the second electronic device is the power supplier, the AC power transmitted by the second electronic device using the charging capacitor unit is transformed by a transformer to form AC power compatible with the first electronic device; the AC power compatible with the first electronic device is converted into DC power by a converter and output to the first power module.

2. The control method according to claim 1, wherein, The first electrode layer includes a plurality of first electrode units uniformly arranged along the touch panel, and the second electrode layer includes a pair of second sub-electrodes; negotiating with the second electronic device based on a wireless charging protocol to determine the formation position of the charging capacitor unit on the first electrode layer, and controlling the first electrode layer to form the charging capacitor unit with the opposite second electrode layer at the position, includes: Determine the first position information of the pair of second sub-electrodes; Based on the first position information, the first electrode unit opposite to the pair of second sub-electrodes is controlled to form a pair of first sub-electrodes, so that the pair of first sub-electrodes are respectively coupled to the pair of second sub-electrodes to form a pair of coupling capacitors, so as to form the charging capacitor unit through the pair of coupling capacitors.

3. The control method according to claim 1, wherein, The first electrode layer includes a plurality of first electrode units uniformly arranged along the touch panel, and the second electrode layer includes a plurality of second electrode units uniformly arranged along the surface of the second electronic device; negotiating with the second electronic device based on a wireless charging protocol to determine the formation position of the charging capacitor unit on the first electrode layer, and controlling the first electrode layer to form the charging capacitor unit with the opposing second electrode layer at the position, includes: Negotiate the second position information of the charging capacitor unit with the second electronic device; Based on the second position information, several first electrode units are controlled to form a pair of first sub-electrodes, such that the pair of first sub-electrodes are respectively opposite to and coupled with a pair of second sub-electrodes of the second electronic device to form a pair of coupling capacitors, so as to form the charging capacitor unit through the pair of coupling capacitors; The pair of second sub-electrodes is formed by a number of second electrode units.

4. The control method according to claim 3, wherein, The negotiation of the second location information of the charging capacitor unit with the second electronic device includes: The second location information is negotiated based on the first power parameters of the first electronic device and the second power parameters of the second electronic device.

5. The control method according to claim 1, wherein, Determining whether a second electronic device is placed on the touch panel of the first electronic device includes: When it is determined that an object to be detected is placed on the touch panel, the third electrode layer of the first electronic device is de-energized; wherein, the third electrode layer is opposite to the first electrode layer and can be coupled to form a touch capacitor unit, and the touch capacitor unit is used to detect the touch position of the touch object on the touch panel; The first electrode layer outputs a detection signal conforming to a preset protocol to request the detection of whether the object to be detected belongs to the second electronic device. Upon receiving a feedback signal corresponding to the detection signal, the object to be detected is determined to be a second electronic device.

6. The control method according to claim 1, wherein, The process of converting the DC power output from the first power module into AC power via a converter includes: A pulse signal is sent to the converter, causing the converter to convert the DC power output from the first power module into AC power based on the pulse signal.

7. An electronic device, comprising: A touch panel having a first electrode layer for detecting the touch position of a touch subject on the touch panel; The touch panel is an input device that allows users to control the first electronic device by touching it; A controller is configured to determine whether a second electronic device is placed on the touch panel; wherein the second electronic device has a second electrode layer, the second electrode layer being capable of forming a charging capacitor unit with the first electrode layer; when it is determined that the second electronic device is placed on the touch panel, based on a wireless charging protocol jointly supported by the first and second electronic devices, the controller controls the first electronic device to interact with the second electronic device through the first and second electrode layers, determines whether power transmission conditions are met based on the information interaction, and automatically determines the power supply device and the power receiving device; when it is determined that the first and second electronic devices meet the power transmission conditions, the controller negotiates with the second electronic device based on the wireless charging protocol to determine the formation position of the charging capacitor unit on the first electrode layer, and controls the first electrode layer to form the charging capacitor unit with the opposite second electrode layer at the position; The first power module, when the first electronic device is the power supplier, is used to output DC power under the control of the controller, convert the output DC power into AC power through a converter, and transform the AC power output by the converter through a transformer to form AC power compatible with the second electronic device; or, when the second electronic device is the power supplier, it is used to transform the AC power transmitted by the second electronic device using the charging capacitor unit through a transformer under the control of the controller to form AC power compatible with the first electronic device, convert the AC power compatible with the first electronic device into DC power through a converter, and receive the DC power.

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