Power adapters with lightning receptacles, charging devices and systems

Abstract

The present invention relates to the field of adapters, and more particularly to a power adapter with a lightning receptacle, a charging device, and a system. The power adapter with a lightning receptacle includes a main body having a lightning receptacle and an adapter unit, and the lightning receptacle and the adapter unit are electrically connected to each other, and a case having an opening communicating with the lightning receptacle and fitted to the outside of the main body so that the opening corresponds to the lightning receptacle. The adapter unit supplies power directly or indirectly to the lightning receptacle and outputs voltage and current to the outside via the lightning receptacle. By designing a power adapter, charging device and system, the Lightning receptacle can communicate with an external terminal device to charge it externally. By combining the Lightning receptacle with an adapter unit, a communication control unit and an adapter control unit, identity identification is performed by the terminal device connected to the Lightning receptacle and the adapter, and then charging operations are performed as needed, a feasible charging scheme is proposed in which the Lightning receptacle functions as a power output port, and is highly stable.

Description

[Technical field]

[0001] The present invention relates to the field of adapters, and more particularly to power adapters with lightning receptacles, charging devices and systems. [Background technology]

[0002] The Lightning receptacle is generally used as a transmission port of a terminal device for data exchange between the terminal device and an external device and for power supply to the terminal device. The Lightning receptacle has advantages such as small size, high performance, high applicability, and easy cooperation with a Lightning plug, and it is expected that those skilled in the art will use the Lightning receptacle in a power adapter as an adapter interface for outputting to the outside or exchanging data.

[0003] Referring to the Type-C interface that is provided on a power adapter as a receptacle, the Lightning receptacle has become smaller and more powerful, but if it is provided directly on the power adapter, it cannot output power to the outside to charge the terminal device. Summary of the Invention [Problem to be solved by the invention]

[0004] The technical problem that the present invention aims to solve is to provide a power adapter, a charging device, and a system equipped with a Lightning receptacle, in order to solve the above-mentioned deficiencies of the prior art, and to solve the problem of being unable to output power when a Lightning receptacle is installed on a power adapter. [Means for solving the problem]

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: As a preferred embodiment, A main body is provided with a lightning receptacle as a power output port and an adapter unit, and the lightning receptacle and the adapter unit are electrically connected to each other; A case is provided with an opening communicating with the lightning receptacle, and the case is fitted to the outside of the main body so that the opening corresponds to the lightning receptacle; The adapter unit provides a power adapter with a lightning receptacle that supplies power directly or indirectly to a lightning receptacle and outputs voltage and current to the outside via the lightning receptacle.

[0006] In a preferred embodiment, the main body is provided with a communication control unit and an adapter control unit, and the communication control unit is connected to the adapter control unit, the adapter unit, and a lightning receptacle, respectively; When a terminal device is externally connected to the Lightning receptacle, the communication control unit performs handshake communication with the external terminal device via the Lightning receptacle, and after completion of the handshake communication, the adapter control unit performs protocol communication with the external terminal device via the Lightning receptacle, and after completion of the protocol communication, the adapter unit directly or indirectly supplies power corresponding to charging parameters to the Lightning receptacle in accordance with control by the adapter control unit in order to charge the external terminal device.

[0007] In a preferred embodiment, the adapter unit supplies power corresponding to charging parameters to a Lightning receptacle via an adapter control unit.

[0008] In a preferred embodiment, a first control pin of the adapter control unit is connected to a first channel pin of a Lightning receptacle, a handshake pin of the communication control unit is connected to an identification control pin of the Lightning receptacle, and a power output terminal of the adapter unit is directly or indirectly connected to a power pin of the Lightning receptacle; When a terminal device is externally connected to the Lightning receptacle, the communication control unit performs handshake communication with the external terminal device via an identification control pin of the Lightning receptacle, and after the handshake communication is completed, the adapter control unit performs protocol communication with the external terminal device via a first channel pin of the Lightning receptacle, and after the protocol completion communication, the adapter unit, in accordance with the control of the adapter control unit, directly or indirectly supplies power corresponding to charging parameters to a power pin of the Lightning receptacle to charge the external terminal device.

[0009] In a preferred embodiment, a second control pin of the communication control unit is connected to a first channel pin of a Lightning receptacle, and the communication control unit supplies a power-on signal via the first channel pin of the Lightning receptacle.

[0010] In a preferred embodiment, a third control pin of the adapter control unit is connected to a second channel pin of a Lightning receptacle, and the adapter control unit includes a first protocol module and a second protocol module; The first protocol module is connected to a first channel pin of the Lightning receptacle via a first control pin and performs first protocol communication with an external terminal device via the first channel pin of the Lightning receptacle, and the second protocol module is connected to a second channel pin of the Lightning receptacle via a third control pin and performs second protocol communication with the external terminal device via the second channel pin of the Lightning receptacle.

[0011] In a preferred embodiment, when the adapter control unit detects that the first protocol communication has failed or that the external terminal device does not support the first protocol communication, the adapter control unit controls the second protocol module to perform second protocol communication with the external terminal device via the Lightning receptacle.

[0012] In a preferred embodiment, the second protocol module includes a DP pin and a DM pin, and the second channel pins of the Lightning receptacle include an L1P pin and an L1N pin, the DP pin is connected to the L1P pin, and the DM pin is connected to the L1N pin; The first protocol module includes a CC pin, a first channel pin of the Lightning receptacle includes an L0P pin, and the CC pin is connected to the L0P pin.

[0013] In a preferred embodiment, the first protocol module is a PD protocol module and the second protocol module is a QC protocol module.

[0014] In a preferred embodiment, the communication control unit further includes a reset module, and a reset circuit is externally attached to a reset pin of the reset module, and the reset circuit includes a reset terminal, a first capacitor, a first resistor, and a second resistor, and the reset pin is connected to the reset terminal, the first capacitor, the first resistor, and the second resistor, respectively, and the other ends of the first capacitor and the first resistor are both grounded, and the other end of the second resistor is connected to a power output terminal of an adapter unit.

[0015] In a preferred embodiment, the power adapter further includes a USB receptacle and / or a type-C receptacle provided on the main body.

[0016] In order to solve the problems existing in the prior art, the present invention further provides, as a preferred form, a charging device comprising the above-mentioned power adapter and a charging cable, the charging cable including a lead segment, a lightning male interface provided at one end of the lead segment and capable of being plugged into a lightning receptacle, and an I / O interface provided at the other end of the lead segment.

[0017] In a preferred embodiment, the I / O interface is a lightning male interface.

[0018] In a preferred embodiment, the I / O interface is a type-C male interface.

[0019] In a preferred embodiment, the I / O interface includes one or more of a lightning male interface, a type-C male interface, and a micro male interface.

[0020] In order to solve the problems existing in the prior art, the present invention further provides, as a preferred form, a charging system, including the above-mentioned power adapter, a data cable, and a terminal device, wherein a Lightning plug at one end of the data cable is plugged into a Lightning receptacle of the power adapter, and an IO port at the other end of the data cable is plugged into a terminal device.

[0021] In a preferred embodiment, the data cable includes a data cable controller and a switch MOS transistor connected to the data cable controller, a second control pin of the communication control unit is connected to a first channel pin of a Lightning receptacle, the communication control unit supplies a power-on signal via the first channel pin of the Lightning receptacle, and the data cable controller turns on the switch MOS transistor based on the power-on signal to communicatively connect the communication control unit to a terminal device. Effect of the Invention

[0022] The beneficial effects of the present invention are as follows: Compared with the prior art, the present invention designs a power adapter, charging device and system with a Lightning motherboard interface, so that the Lightning receptacle can communicate with an external terminal device to charge externally, and combines the Lightning receptacle with an adapter unit, a communication control unit and an adapter control unit to perform identity identification by the terminal device and adapter connected to the Lightning receptacle, and then performs charging operation as needed, thereby proposing a feasible charging scheme for the Lightning receptacle to function as a power output port, which is highly stable.

[0023] The present invention will now be further described with reference to the drawings and examples. [Brief description of the drawings]

[0024] [Figure 1] 1 is a structural schematic diagram of an example of a power adapter according to the present invention; [Diagram 2] FIG. 2 is another structural schematic diagram of the power adapter of the present invention; [Diagram 3] FIG. 2 is another structural schematic diagram of the power adapter of the present invention; [Figure 4] FIG. 2 is a further structural schematic diagram of the power adapter of the present invention; [Diagram 5] FIG. 2 is a structural schematic diagram of protocol communication in the present invention; [Figure 6] FIG. 2 is a circuit diagram of a reset module in the present invention. [Figure 7] FIG. 2 is a structural schematic diagram of a charging device according to the present invention. [Figure 8] 1 is a structural schematic diagram of a charging system according to the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[0026] As shown in FIGS. 1-4, the present invention provides a preferred embodiment of a power adapter.

[0027] For power adapters with a Lightning receptacle, see Figure 1. A main body 1 is provided with a lightning receptacle 11, which is a power output port, and an adapter unit 12, and the lightning receptacle 11 and the adapter unit 12 are electrically connected to each other; a case 2 having an opening 21 communicating with the lightning receptacle 11, the case 2 being fitted to the outside of the main body 1 so that the opening 21 corresponds to the lightning receptacle 11; The adapter unit 12 supplies power directly or indirectly to the lightning receptacle 11, and outputs voltage and current to the outside via the lightning receptacle 11.

[0028] 1, the main body 1 is a circuit board provided with a lightning receptacle 11, which can supply power to an external terminal device as a power output port. The circuit board is further provided with an adapter unit 12, which is electrically connected to the lightning receptacle 11 and can directly or indirectly supply power to the lightning receptacle 11 for charging an external terminal device.

[0029] Further, referring to FIG. 1 , the power adapter further includes a case 2 having an opening 21 communicating with a lightning receptacle 11, and the main body 1 is disposed within the case 2 such that the lightning receptacle 11 corresponds to the opening 21.

[0030] Specifically, the adapter unit 12 mainly serves to rectify low-frequency AC to DC, then convert the DC to a high-frequency AC signal, and then rectify the DC to DC through a transformer to charge an external terminal device. The adapter unit 12 is installed in the case 2, the opening 21 is opened on one side of the case 2, and the lightning receptacle 11 is connected to the adapter unit 12 and faces the opening 21 of the case 2, and is further installed corresponding to the opening 21, and is mainly used for connecting to an external terminal device to supply power.

[0031] 1 and 2, the present invention provides two configurations of the lightning receptacle 11. Scheme 1

[0032] Referring to FIG. 1 , the lightning receptacle 11 and the adapter unit 12 are connected and then extend toward the side surface of the case 2 up to an opening 21 in the side surface of the case 2 , and correspond to the position of this opening 21 .

[0033] Specifically, when an external data cable is plugged into the lightning receptacle 11, the lightning male interface 32 on the external data cable interface extends into the lightning receptacle 11 of the power adapter with lightning receptacle and is connected to the adapter unit 12 in the case 2 via the lightning receptacle 11. Scheme 2

[0034] Referring to FIG. 2, the case 2 is further provided with a metal ring 22 for fixing a connector of an external data cable, the metal ring 22 being provided at an end outside the opening 21 and corresponding to the end of the lightning receptacle 11.

[0035] Specifically, when an external data cable is plugged into the lightning receptacle 11, the lightning male interface 32 in the external data cable interface extends into the lightning receptacle 11 of the power adapter with lightning receptacle, and is connected to the adapter unit 12 in the case 2 via the lightning receptacle 11, and is further fixed by the metal ring 22 on the outside of the lightning receptacle 11. In the prior art, the lightning male interface 32 is connected to the lightning receptacle 11 on the outside of the lightning receptacle 11. A rubber ring is generally provided to allow the Lightning male interface 32 to be inserted more stably into the Lightning receptacle 11; however, because the rubber ring is soft, it is prone to shaking from side to side when the Lightning male interface 32 is inserted into the Lightning receptacle 11. In this embodiment, a metal ring 22 with high hardness is provided on the outer end of the Lightning receptacle 11, which improves stability when the Lightning male interface 32 is inserted, while preventing the main body of the external data cable from cracking due to bending during charging, and further prevents the Lightning receptacle 11 from being cut off from the main body of the wire.

[0036] Further, referring to FIG. 3, the main body 1 is further provided with a communication control unit 13 and an adapter control unit 14, the communication control unit 13 is respectively connected to the adapter control unit 14, the adapter unit 12 and the lightning receptacle 11, when a terminal device is externally connected to the lightning receptacle 11, the communication control unit 13 performs handshake communication with the external terminal device via the lightning receptacle 11, the adapter control unit 14 performs protocol communication with the external terminal device via the lightning receptacle 11 after the handshake communication is completed, and the adapter unit 12, after the protocol communication is completed, according to the control of the adapter control unit 14, directly or indirectly supplies power corresponding to charging parameters to the lightning receptacle 11 to charge the external terminal device.

[0037] Specifically, the second control pin of the communication control unit 13 is connected to the first channel pin of the lightning receptacle 11, and the communication control unit 13 supplies a power-on signal via the first channel pin of the lightning receptacle 11, and performs handshake communication when a terminal device is externally attached to the lightning receptacle 11. First, the communication control unit 13 performs handshake communication directly with the terminal device, and performs communication regarding initial preparations for rapid charging of the terminal device by the adapter unit 12. After the handshake communication is completed, if it is confirmed that the communication is successful and satisfies the requirements, the adapter unit 12, after the protocol communication is completed, directly or indirectly supplies power corresponding to the charging parameters to the lightning receptacle 11 to charge the external terminal device according to the control of the adapter control unit 14.

[0038] Furthermore, the first control pin of the adapter control unit 14 is connected to the first channel pin of the lightning receptacle 11, the handshake pin of the communication control unit 13 is connected to the identification control pin of the lightning receptacle 11, and the power output terminal of the adapter unit 12 is directly or indirectly connected to the power pin of the lightning receptacle 11. When a terminal device is externally attached to the lightning receptacle 11, the communication control unit 13 performs handshake communication with the external terminal device via the identification control pin of the lightning receptacle 11. After the handshake communication is completed, the adapter control unit 14 performs protocol communication with the external terminal device via the first channel pin of the lightning receptacle 11. After the protocol communication is completed, the adapter unit 12 directly or indirectly supplies power corresponding to the charging parameters to the power pin of the lightning receptacle 11 to charge the external terminal device according to the control of the adapter control unit 14.

[0039] The adapter unit 12 is primarily connected to a power source, which is a source that supplies power, such as a commercial power socket, and the adapter unit 12 converts the power supplied by the power source into power that can be used to power the adapter itself and to be supplied externally via the lightning receptacle 11. The adapter unit 12 also supplies power of various voltage and current values, supplies the charging power required for an external terminal device, and enables operations such as normal charging and rapid charging.

[0040] Preferably, referring to FIG. 4, the adapter unit 12 supplies power corresponding to charging parameters to the lightning receptacle 11 via the adapter control unit 14, and the adapter control unit 14 controls the power output, thereby realizing optimal power output operation and meeting the charging requirements of the terminal device.

[0041] Attaching a terminal device externally to the lightning receptacle 11 is generally thought of as connecting the lightning receptacle 11 and the external terminal via a data cable, one end of the data cable being a Lightning plug that can be inserted into the lightning receptacle 11 and the other end being a charging head that can be inserted into the charging port of the external terminal, with the power output positive electrode of the adapter unit being connected to the power input positive electrode of the terminal device via the power pin of the lightning receptacle 11, the power pin of the Lightning plug, the power cable of the data cable, and the power output positive electrode of the charging head.

[0042] The handshake protocol is a network protocol that mainly allows a client and a server to confirm the identity of the other party. When the communication control unit 13 is powered on and detects that a terminal device is externally attached to the lightning receptacle 11, the communication control unit 13 first performs handshake communication with the external terminal device through the handshake module of the communication control unit 13 to determine whether the device is capable of protocol quick charging or is a registered device. In one embodiment, the communication control unit 13 includes a first chip and a peripheral circuit, and the chip IC is added to enable alternation with the external terminal device via the lightning receptacle 11, improving the efficiency and accuracy of communication with the external terminal device. In addition to the adapter control unit 14 of the adapter, the first chip is added to design the communication control unit 13, simplifying the design of the adapter control unit 14 of the adapter, while realizing a modular layout, promoting the mass production of the circuit structure, reducing production costs, and distributing functions. In particular, a specific function is integrated into the first chip to design and produce a chip with a dedicated function, thereby avoiding waste of chip functions and reducing costs. Here, a plurality of pins of the first chip are used as burst cutting pins to perform software burst cutting on the first chip. Preferably, the handshake module is connected to the ID pin of the lightning receptacle 11 via one communication pin of the first chip, and a resistor is provided between the first chip and the lightning receptacle 11.

[0043] The above terminal devices may be devices such as mobile phones, tablets, computers, smart wearables, etc.

[0044] As shown in FIG. 5, the present invention provides a preferred embodiment of protocol communication.

[0045] A third control pin of the adapter control unit 14 is connected to a second channel pin of the lightning receptacle 11, and the adapter control unit 14 includes a first protocol module 141 and a second protocol module 142. The first protocol module 141 is connected to the first channel pin of the lightning receptacle 11 via the first control pin and performs a first protocol communication with an external terminal device via the first channel pin of the lightning receptacle 11, and the second protocol module 142 is connected to the second channel pin of the lightning receptacle 11 via the third control pin and performs a second protocol communication with an external terminal device via the second channel pin of the lightning receptacle 11.

[0046] The first protocol module 141 is a PD protocol module, and the first protocol module 141 performs PD protocol communication with an external terminal device through the lightning receptacle 11. The PD charging protocol is a power transport protocol published by the USB-IF organization, which improves the type-c interface, which currently has a maximum output of 5V / 2A by default, to 100W. Google also announced that in order to unify the fast charging market, the fast charging protocol installed in mobile phones with Android 7.0 or higher must support the PD protocol. USBPD increases power transport through USB cables and connectors, and expands the power supply capability of the cable bus in USB applications. This specification can achieve higher voltages and currents, the power to be transmitted can reach a maximum of 100 watts, and the direction of power transport can be freely changed. Of course, the first protocol module 141301 may be other communication protocols.

[0047] In one embodiment, when the adapter control unit 14 detects that the first protocol communication has failed or that the external terminal device does not support the first protocol communication, the adapter control unit 14 controls the second protocol module 142 to perform the second protocol communication with the external terminal device via the lightning receptacle 11. The second protocol module 142 includes a DP pin and a DM pin, and the second channel pin 440 of the lightning receptacle 11 includes an L1P pin and an L1N pin, and the DP pin is connected to the L1P pin and the DM pin is connected to the L1N pin. The first protocol module 141301 includes a CC pin, and the first channel pin of the lightning receptacle 11 includes an L0P pin, and the CC pin is connected to the L0P pin. When the adapter control unit 14 detects that the first protocol communication fails or the external terminal device does not support fast charging, it controls the second protocol module 142 to perform the second protocol communication with the external terminal device through the lightning receptacle 11. On the one hand, the adaptability of the adapter is improved, and more external terminal devices can be paired with the lightning receptacle 11; on the other hand, the adapter may be provided with different receptacle interfaces, and the second protocol module 142 is used for the additional receptacle interface and can also be used for the lightning receptacle 11, thus realizing multiplexing of one function.

[0048] The second protocol module 142 includes a DP pin and a DM pin, and the second channel pin 440 of the lightning receptacle 11 includes an L1P pin and an L1N pin, and the DP pin is connected to the L1P pin, and the DM pin is connected to the L1N pin. Furthermore, the second protocol module 142 is a QC protocol module, and the second protocol module 142 performs QC protocol communication with an external terminal device via the lightning receptacle 11. The device outputs a voltage signal to the charger via the USB data communication ports D+ and D-, and the USB built into the charger decodes the chip and determines the magnitude of the output voltage required for the charger. There is no particular limitation on the charging USB cable.

[0049] Furthermore, the adapter control unit 14 preferably includes a second chip and its peripheral circuits, and realizes an integrated design through the second chip, although of course logic circuits may be provided to realize related control functions.

[0050] As shown in FIG. 6, the present invention provides a preferred embodiment of a reset module.

[0051] The communication control unit 13 further includes a reset module, and a reset circuit is externally attached to a reset pin of the reset module, and the reset circuit includes a reset terminal, a first capacitor, a first resistor, and a second resistor, and the reset pin is connected to the reset terminal, the first capacitor, the first resistor, and the second resistor, respectively, and the other ends of the first capacitor and the first resistor are both grounded, and the other end of the second resistor is connected to the power output terminal of the adapter unit 12.

[0052] Specifically, U1 on the left side is the first chip, and the pin P51 of the first chip functions as the reset pin of the reset module. A reset circuit is externally connected through the reset pin. The reset circuit includes a reset terminal RST connected to the reset pin, a first capacitor C7, a first resistor R7, and a second resistor R5. The other end of the second resistor R5 is connected to the power output terminal VOUTL of the adapter unit 12. It resets initialization when powered on and controls the first chip to perform related communication operations, such as handshake communication.

[0053] As shown in FIG. 7, the present invention provides a preferred embodiment of a charging device.

[0054] A charging device is shown in FIG. 7, which includes the above-mentioned power adapter and a charging cable, the charging cable including a lead segment 31, a lightning male interface 32 disposed at one end of the lead segment 31 and capable of being plugged into a lightning receptacle 11, and an I / O interface 33 provided at the other end of the lead segment 31.

[0055] Specifically, the charging cable mainly serves to connect a power adapter with a lightning receptacle to an external device to charge the external device, and one end of the charging cable is provided with a lightning male interface 32 used in combination with the power adapter with a lightning receptacle, and the other end is provided with an I / O interface 33 connected to an external device unit. Note that the lightning male interface 32 of the charging cable may be connected to a power adapter with a lightning receptacle to obtain power and charge the external device, or may be connected to another external device to transmit data or transfer power between the two devices. Scheme 1

[0056] The I / O interface 33 is a lightning interface for connecting to an external device.

[0057] Specifically, one end of the data cable is a lightning male interface 32 and the other end is a lightning interface, the lightning interface is specifically a lightning male interface 32, and the data cable with dual lightning male interfaces 32 may be respectively connected to a power adapter with a lightning receptacle and an external device to charge the external device, or may be respectively connected to an external device with two lightning receptacles 11 to transmit data or transfer power between the two external devices. Scheme 2

[0058] The I / O interface 33 is a type-C interface for connecting to an external device.

[0059] Specifically, one end of the data cable is a lightning male interface 32, and the other end is a type-C interface, the type-C interface is specifically a type-C male interface, and the data cable may be connected to a power adapter and an external device with a lightning receptacle respectively to charge the external device, or may be connected to an external device with a lightning receptacle 11 and an external device with a type-C receptacle respectively to transmit data or transfer power between two external devices with different receptacles. Scheme 3

[0060] The I / O interface 33 includes one or more of a lightning interface, a type-C interface, and a micro interface, and an external device may be connected to a charging device and charged via the lightning interface, the type-C interface, or the micro interface.

[0061] Specifically, one end of the data cable is a lightning male interface 32, and the other end is a multi-interface terminal specifically including one or more of a lightning interface, a type-C interface, and a micro interface, and the lightning interface, the type-C interface, and the micro interface are specifically a lightning male interface 32B1, a type-C male interface, and a micro male interface. This data cable may be connected to a power adapter with a lightning receptacle and two different external devices, respectively, to charge the two different external devices individually or simultaneously, or may be connected to an external device with a lightning receptacle 11 and another two external devices with a lightning interface, a type-C interface, or a micro interface, respectively, to realize data transmission or power transfer between external devices having multiple different receptacles.

[0062] In addition, one or more of the lightning interface, type-C interface, and micro interface include a form having both a lightning interface and a type-C interface, a form having both a lightning interface and a micro interface, a form having both a type-C interface and a micro interface, and a form having all of a lightning interface, a type-C interface, and a micro interface.

[0063] Furthermore, the charging cable may further be provided with a protection unit for preventing current backflow.

[0064] Specifically, both interfaces on both ends of the charging cable may be connected to an external device. When one external device charges another external device, current backflow is likely to occur when the power amounts of the two external devices change constantly. In order to prevent current backflow between two different external devices and destroy the devices, in this embodiment, the charging cable is also provided with a protection unit.

[0065] Moreover, the charging cable is further provided with a bidirectional power adapter unit for switching between a charging device and a charged device.

[0066] Specifically, the bidirectional power adapter unit may be a bidirectional charging circuit, and may be a bidirectional charging protocol with default rules, enabling data or power to be transmitted from a first external device to a second external device, and data or power to be transmitted from the second external device to the first external device, thereby improving the practicality of the entire data cable.

[0067] As shown in FIG. 8, the present invention provides a preferred embodiment of a charging system.

[0068] Referring to FIG. 8 , the charging system includes the above-mentioned power adapter, a data cable 3, and a terminal device 4, where a Lightning plug at one end of the data cable 3 is plugged into a Lightning receptacle 11 of the power adapter, and an I / O port at the other end of the data cable is plugged into the terminal device 4.

[0069] In one embodiment, the power adapter further includes other I / O interfaces, such as a USB interface and a type-c interface, so that the power adapter includes multiple interfaces, has better applicability, and improves the user experience.

[0070] The data cable includes a data cable controller and a switch MOS transistor connected to the data cable controller, a second control pin of the communication control unit 13 is connected to a first channel pin of the lightning receptacle 11, the communication control unit 13 supplies a power-on signal via the first channel pin of the lightning receptacle 11, and the data cable controller turns on the switch MOS transistor based on the power-on signal to communicatively connect the communication control unit 13 to a terminal device.

[0071] Therefore, when the power adapter is powered on, i.e., when the communication control unit 13 is powered on, the power-on signal causes the first channel pin of the lightning receptacle 11 to generate a power-on signal, and at the same time, the data cable controller makes the switch MOS transistor conductive based on the power-on signal and communicatively connects the communication control unit 13 to the terminal device, and further, immediately after the communication control unit 13 is communicatively connected to the terminal device, the communication control unit 13 performs handshake communication with the terminal device, and after the handshake communication is completed, performs first protocol communication, and in this way, external charging is realized via the lightning receptacle 11, and rapid charging is realized via the lightning receptacle 11.

[0072] The above is merely a preferred embodiment of the present invention, and does not limit the scope of the present invention. Any equivalent changes or modifications made based on the patent scope of the present application are within the scope of the present invention.

Claims

1. A power adapter with a lighting receptacle, A main body is provided with a lighting receptacle, which is a power output port, and an adapter unit, and the lighting receptacle and the adapter unit are electrically connected to each other; A case is provided with an opening communicating with the lighting receptacle, and the opening is fitted to the outside of the main body so as to correspond to the lighting receptacle; The adapter unit supplies power directly or indirectly to a lighting receptacle, and outputs voltage and current to the outside via the lighting receptacle; The main body is provided with a communication control unit and an adapter control unit, and the communication control unit is connected to the adapter control unit, the adapter unit, and a lighting receptacle, respectively; A power adapter with a Lightning receptacle, characterized in that when a terminal device is externally connected to the Lightning receptacle, the communication control unit performs handshake communication with the external terminal device via the Lightning receptacle, and after completion of the handshake communication, the adapter control unit performs protocol communication with the external terminal device via the Lightning receptacle, and after completion of the protocol communication, the adapter unit directly or indirectly supplies power corresponding to charging parameters to the Lightning receptacle in accordance with control by the adapter control unit in order to charge the external terminal device.

2. The power adapter of claim 1 , wherein the adapter unit supplies power corresponding to charging parameters to a Lightning receptacle via an adapter control unit.

3. A first control pin of the adapter control unit is connected to a first channel pin of a Lightning receptacle, a handshake pin of the communication control unit is connected to an identification control pin of the Lightning receptacle, and a power output terminal of the adapter unit is directly or indirectly connected to a power pin of the Lightning receptacle; The power adapter of claim 1 or 2, characterized in that when a terminal device is externally connected to the Lightning receptacle, the communication control unit performs handshake communication with the external terminal device through an identification control pin of the Lightning receptacle, and after the handshake communication is completed, the adapter control unit performs protocol communication with the external terminal device through a first channel pin of the Lightning receptacle, and after the protocol completion communication, the adapter unit, in accordance with the control of the adapter control unit, directly or indirectly supplies power corresponding to charging parameters to a power pin of the Lightning receptacle to charge the external terminal device.

4. 4. The power adapter of claim 3, wherein a second control pin of the communication control unit is connected to a first channel pin of a Lightning receptacle, and the communication control unit provides a power-on signal via the first channel pin of the Lightning receptacle.

5. a third control pin of the adapter control unit is connected to a second channel pin of a Lightning receptacle, the adapter control unit including a first protocol module and a second protocol module; 4. The power adapter of claim 3, wherein the first protocol module is connected to a first channel pin of a Lightning receptacle via a first control pin and performs first protocol communication with an external terminal device via the first channel pin of the Lightning receptacle, and the second protocol module is connected to a second channel pin of the Lightning receptacle via a third control pin and performs second protocol communication with an external terminal device via the second channel pin of the Lightning receptacle.

6. 6. The power adapter of claim 5, wherein the adapter control unit controls the second protocol module to perform second protocol communication with the external terminal device via the Lightning receptacle when the adapter control unit detects that the first protocol communication has failed or that the external terminal device does not support the first protocol communication.

7. the second protocol module includes a DP pin and a DM pin, the second channel pins of the Lightning receptacle include an L1P pin and an L1N pin, the DP pin is connected to the L1P pin, and the DM pin is connected to the L1N pin; 6. The power adapter of claim 5, wherein the first protocol module includes a CC pin, the first channel pin of the Lightning receptacle includes an L0P pin, and the CC pin is connected to the L0P pin.

8. 8. The power adaptor of claim 5, wherein the first protocol module is a PD protocol module, and the second protocol module is a QC protocol module.

9. The power adapter of claim 1, characterized in that the communication control unit further includes a reset module, and a reset circuit is externally attached to a reset pin of the reset module, the reset circuit includes a reset terminal, a first capacitor, a first resistor, and a second resistor, the reset pin is connected to the reset terminal, the first capacitor, the first resistor, and the second resistor, respectively, the other ends of the first capacitor and the first resistor are both grounded, and the other end of the second resistor is connected to a power output terminal of an adapter unit.

10. 2. The power adapter of claim 1, further comprising a USB receptacle and / or a type-C receptacle provided on the main body.

11. A charging device, 11. A charging device comprising: a power adapter according to any one of claims 1 to 10; and a charging cable, the charging cable comprising: a lead segment; a lighting male interface provided at one end of the lead segment that can be plugged into a lighting receptacle; and an I / O interface provided at the other end of the lead segment.

12. The charging device according to claim 11, wherein the I / O interface is a lighting male interface.

13. 12. The charging device according to claim 11, wherein the I / O interface is a type-C male interface.

14. 12. The charging device of claim 11, wherein the I / O interface includes one or more of a Lightning male interface, a Type-C male interface, and a Micro male interface.

15. 1. A charging system comprising: A charging system comprising the power adapter according to any one of claims 1 to 10, a data cable, and a terminal device, wherein a Lightning plug at one end of the data cable is plugged into a Lightning receptacle of the power adapter, and an IO port at the other end of the data cable is plugged into the terminal device.

16. 16. The charging system of claim 15, wherein the data cable includes a data cable controller and a switch MOS transistor connected to the data cable controller, a second control pin of the communication control unit is connected to a first channel pin of a Lightning receptacle, the communication control unit supplies a power-on signal via the first channel pin of the Lightning receptacle, and the data cable controller turns on the switch MOS transistor based on the power-on signal to communicatively connect the communication control unit to a terminal device.

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