WO2021197310A1 - 充电方法、otg线缆及电子设备 - Google Patents

充电方法、otg线缆及电子设备 Download PDF

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Publication number
WO2021197310A1
WO2021197310A1 PCT/CN2021/083897 CN2021083897W WO2021197310A1 WO 2021197310 A1 WO2021197310 A1 WO 2021197310A1 CN 2021083897 W CN2021083897 W CN 2021083897W WO 2021197310 A1 WO2021197310 A1 WO 2021197310A1
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Prior art keywords
electronic device
data line
signal
port
otg cable
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PCT/CN2021/083897
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English (en)
French (fr)
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郭朋飞
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维沃移动通信有限公司
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Publication of WO2021197310A1 publication Critical patent/WO2021197310A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage

Definitions

  • the present invention relates to the field of charging technology, in particular to a charging method, OTG cable and electronic equipment.
  • OTG ON-The-Go
  • the mobile terminal can be reversely charged through the OTG function.
  • the user usually can only charge with a small current, the charging efficiency is low, the time is long, and the configuration cannot be adjusted according to the needs. It is necessary to select an appropriate charging current, which brings inconvenience to users.
  • the present invention provides a charging method, OTG cable and electronic equipment to solve the problem that users cannot select a suitable charging current according to their needs when charging through the OTG cable, which brings inconvenience to the user.
  • the present invention adopts the following technical solutions:
  • the charging method according to the embodiment of the present invention is applied to a first electronic device, and the charging method includes:
  • the first electronic device detects the timing sequence simulated by the OTG cable according to the first signal, where the first signal is the second Signals sent by electronic equipment;
  • the first electronic device controls the magnitude of the charging current according to the timing sequence.
  • the charging method according to the embodiment of the present invention is applied to an OTG cable, and the charging method includes:
  • the OTG cable When the OTG cable is connected to the second electronic device, the OTG cable receives a first signal, and the first signal is a signal sent by the second electronic device;
  • the OTG cable simulates timing according to the first signal.
  • the first electronic device includes:
  • the detection module is configured to detect the timing sequence simulated by the OTG cable according to the first signal, where the first signal is a signal sent by the second electronic device;
  • the charging module is used to control the size of the charging current according to the timing sequence.
  • the second electronic device includes:
  • the sending module is configured to send a first signal, and when the second electronic device is connected to an OTG cable, the OTG cable simulates a timing sequence according to the first signal.
  • it further includes an input module for inputting a target charging current value, and the sending module sends the first signal according to the target charging current value.
  • an identification module is further included for identifying the type of the OTG cable, and the input module determines the target charging current value according to the type of the OTG cable.
  • the OTG cable according to the embodiment of the present invention includes:
  • the first connection interface and the second connection interface are respectively arranged at both ends of the charging cable, the first connection interface is used to connect to the charging terminal of the first electronic device, and the second connection interface is used to connect to the The power receiving end of the second electronic device is connected;
  • the control module is configured to simulate a timing sequence according to the first signal sent by the second electronic device, so that the first electronic device controls the magnitude of the charging current input to the second electronic device according to the timing sequence.
  • the OTG cable also includes:
  • a data line connected between the first connection interface and the second link interface, and the data line includes a first data line and a second data line;
  • the control module includes:
  • a detection unit for detecting the output voltage of the first data line and the second data line
  • control unit the control unit is connected to the detection unit, a first port and a second port are provided on the control unit, and the control unit is used to control the first port and the detection unit according to the first signal. Conduction or disconnection between the first data line, and conduction or disconnection between the second port and the second data line;
  • the control unit is configured to control the output voltage of the first port and/or the second port according to the output voltage of the first data line;
  • control unit is configured to control the output voltage of the first port and/or the second port according to the output voltage of the second data line;
  • the control unit controls the conduction or disconnection between the first port and the first data line, and between the second port and the second data line, and according to the first port and the second data line. / Or the output voltage of the second port to simulate the timing sequence.
  • the OTG cable also includes:
  • a second connection line the first end of the second connection line is connected to the second data line, and the second end of the second connection line is connected to the second port;
  • a first detection line a first end of the first detection line is connected to the first data line, and a second end of the first detection line is connected to the detection unit;
  • a second detection line the first end of the second detection line is connected to the second data line, and the second end of the second detection line is connected to the detection unit.
  • the OTG cable also includes:
  • the identification pin is used to identify the type of the OTG cable.
  • the charging method according to the embodiment of the present invention is applied to a first electronic device.
  • the first electronic device detects that the OTG cable is based on the first signal A simulated timing sequence, wherein the first signal is a signal sent by the second electronic device; the first electronic device controls the magnitude of the charging current according to the timing sequence.
  • the user can input the corresponding first signal to the OTG cable through the second electronic device according to the required charging current.
  • the OTG cable simulates the corresponding timing according to the first signal, and the first electronic device can detect
  • the timing of OTG cable simulation controls the size of the charging current, so that users can select different charging currents according to their needs, which is convenient for users to charge.
  • FIG. 1 is a schematic flowchart of a charging method according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the connection between the first electronic device and the second electronic device according to an embodiment of the present invention
  • FIG 3 is another schematic diagram of the connection between the first electronic device and the second electronic device according to an embodiment of the present invention.
  • FIG. 4 is another schematic diagram of the connection between the first electronic device and the second electronic device according to an embodiment of the present invention.
  • Control unit 20 first port 21; second port 22; detection unit 23;
  • the first electronic device 30 the detection module 31; the charging module 32;
  • Second electronic device 40 sending module 41; input module 42; identification module 43;
  • First data line 51 second data line 52;
  • the charging method according to the embodiment of the present invention is applied to a first electronic device. As shown in FIG. 1 and FIG. 2, the charging method includes:
  • Step S1 when the first electronic device 30 and the second electronic device 40 are connected through the OTG cable for charging, the first electronic device 30 detects the timing of the OTG cable simulation according to the first signal, where the first signal is the second The signal sent by the electronic device 40;
  • step S2 the first electronic device 30 controls the magnitude of the charging current according to the time sequence.
  • the user can input the corresponding first signal to the OTG cable according to the required charging current.
  • the user can input the corresponding first signal to the OTG cable through the second electronic device 40, and the OTG cable is based on the first signal.
  • a signal simulates the corresponding timing.
  • the first electronic device 30 can control the magnitude of the charging current to the second electronic device 40 according to the detected timing of the OTG cable simulation.
  • the user can select different The charging current facilitates the user to charge the second electronic device 40 through the OTG cable.
  • the second electronic device 40 may send the first signal to the OTG cable according to the target charging current value.
  • the user can send the corresponding first signal to the OTG cable according to the required charging current.
  • the second electronic device 40 can send the corresponding signal to the OTG cable.
  • the first signal the OTG cable simulates the DCP timing according to the first signal
  • the first electronic device 30 can detect the timing simulated by the OTG cable based on the first signal
  • the first electronic device 30 controls the magnitude of the charging current according to the timing simulated by the first signal , Enabling users to charge according to the required charging current.
  • the second electronic device 40 can identify the type of the OTG cable, determine the target charging current value according to the type of the OTG cable, and the second electronic device 40 sends to the OTG cable according to the target charging current value.
  • the first signal There are two types of OTG cables: USB_B TO USB_B (abbreviated B2B) cable and USB_C TO USB_C (abbreviated C2C) cable. According to the type of OTG cable, determine the charging current that the OTG cable can meet, for example, you can determine whether it can Satisfy high current charging.
  • the timing may include a dedicated charging port (Dedicated Charging Port, DCP) timing, a standard downstream port (Standard Downstream Port, SDP) timing, or a charging downstream port (Charging Downstream Port, CDP) timing.
  • DCP Dedicated Charging Port
  • SDP Standard Downstream Port
  • CDP Charging Downstream Port
  • Different timings can correspond to different currents. For example, SDP timing corresponds to 500mA and 900mA charging current, CDP timing corresponds to 1.5A charging current, and DCP timing corresponds to 2A charging current.
  • the second electronic device 40 can send a first signal to the OTG cable.
  • the OTG cable simulates the DCP timing according to the first input signal, and the first electronic device 30 detects the OTG
  • the first electronic device controls the charging current according to the simulated DCP timing to a charging current of 2A corresponding to the DCP timing, so that the user can charge according to the required charging current.
  • the embodiment of the present invention provides a charging method, which is applied to an OTG cable, and the charging method includes:
  • the OTG cable When the OTG cable is connected to the second electronic device 40, the OTG cable receives the first signal, and the first signal is the signal sent by the second electronic device 40; the OTG cable simulates the timing according to the first signal.
  • the first electronic device 30 detects the timing simulated by the OTG cable according to the first signal.
  • the timing may include DCP timing, SDP timing, or CDP timing.
  • the first electronic device 30 controls the magnitude of the charging current according to the timing sequence.
  • the user can send the corresponding first signal to the OTG cable through the second electronic device 40 according to the required charging current.
  • the OTG cable simulates the corresponding timing according to the first signal, and the first electronic device 30 can according to the detected OTG cable
  • the timing of the cable simulation controls the size of the charging current to the second electronic device 40.
  • the first electronic device 30 includes a detection module 31 and a charging module 32.
  • the detection module 31 can detect the timing of the OTG cable simulation according to the first signal, where:
  • the first signal is a signal sent by the second electronic device 40, and the charging module 32 can control the magnitude of the charging current according to the timing sequence.
  • the user can input the corresponding first signal to the OTG cable through the second electronic device 40, and the OTG cable simulates the corresponding signal according to the first signal.
  • the timing may include DCP timing, SDP timing or CDP timing.
  • the charging module 32 in the first electronic device 30 may control the charging current to the second electronic device 40 according to the timing of the OTG cable simulation detected by the detection module 31 The size of, so that the user can select different charging currents according to needs, and it is convenient for the user to charge the second electronic device 40 through the OTG cable.
  • the second electronic device 40 may include a sending module 41, and the sending module 41 may send a first signal.
  • the OTG cable simulates timing according to the first signal, and the timing may include DCP timing, SDP timing, or CDP timing.
  • the first signal is sent through the sending module 41, and the OTG cable simulates the timing according to the first signal, and the first electronic device 30 can detect
  • the timing of the OTG cable simulation is to control the magnitude of the charging current to the second electronic device 40, so that the user can select different charging currents according to needs, so that the user can charge the second electronic device 40 through the OTG cable.
  • the second electronic device 40 further includes an input module 42.
  • the input module 42 can be connected to the sending module 41.
  • the input module 42 can input the target charging current value.
  • the target charging current value sends a corresponding first signal.
  • the user can send the corresponding first signal to the OTG cable through the input module 42 according to the required charging current.
  • the OTG cable simulates the corresponding timing according to the first signal, and the first electronic device 30 can simulate the corresponding OTG cable according to the detected OTG cable.
  • the time sequence is to control the magnitude of the charging current to the second electronic device 40, so that the user can select different charging currents as needed.
  • the second electronic device 40 further includes an identification module 43.
  • the identification module 43 can be connected to the input module 42, and the identification module 43 can identify the type of OTG cable.
  • the type of the OTG cable determines the target charging current value, so that the OTG cable can meet the charging current requirement of the target charging current value, so as to meet the high current charging.
  • the embodiment of the present invention provides an OTG cable. As shown in FIG.
  • the OTG cable includes a charging cable 10, a first connection interface, a second connection interface, and a control module, wherein the first connection interface and the second connection interface are respectively Set at both ends of the charging cable 10, the first connection interface is used to connect to the charging terminal of the first electronic device 30, the second connection interface is used to connect to the power receiving terminal of the second electronic device 40, and the control module is used to connect to the power receiving terminal of the second electronic device 40.
  • the first signal sent by the second electronic device 40 simulates the timing sequence, so that the first electronic device 30 controls the magnitude of the charging current input to the second electronic device 40 according to the timing sequence.
  • the OTG cable is mainly composed of a charging line 10, a first connection interface, a second connection interface, and a control module.
  • the control module can be connected to the charging line 10, and the control module can be powered through the charging line 10.
  • the first connection interface And the second connection interface are respectively arranged at both ends of the charging cable 10, and the device can be connected through the first connection interface and the second connection interface.
  • the first connection interface It can be connected to the charging terminal of the first electronic device 30, and the second connection interface can be connected to the power receiving terminal of the second electronic device 40.
  • the control module can simulate the timing according to the first signal sent by the second electronic device 40, so that the first electronic device 30 controls the magnitude of the charging current input to the second electronic device 40 according to the simulated timing.
  • the user can send the corresponding first signal through the second electronic device 40 according to the required charging current.
  • the control module simulates the corresponding timing according to the first signal. Different timings can correspond to different charging currents.
  • the device 30 controls the magnitude of the charging current input to the second electronic device 40 according to the simulated timing, so that the user can select different charging currents according to needs.
  • the electronic device 40 is charged.
  • the OTG cable may further include a data line, the data line may be connected between the first connection interface and the second link interface, and the data line includes a first data line 51 (DP) and a second data line 52(DM), the first data line 51 can be provided with a first switch k1 that can be turned on or off, and the second data line 52 can be provided with a second switch k2 that can be turned on or off.
  • the control module can The first switch k1 and the second switch k2 are controlled to be turned on or off, and data can be transmitted between the first electronic device 30 and the second electronic device 40 through the data line.
  • the OTG cable may also include a ground wire (GND) to facilitate grounding.
  • GND ground wire
  • the control module includes a detection unit 23 and a control unit 20.
  • the detection unit 23 can detect the output voltages of the first data line 51 and the second data line 52; the control unit 20 is connected to the detection unit 23 to control
  • the unit 20 may be connected to the charging line 10 through a voltage regulator (LDO), and the control unit 20 and the detection unit 23 may be supplied with power through the charging line 10.
  • the control unit 20 can control the on or off of the first switch k1 and the second switch k2.
  • the control unit 20 is provided with a first port 21 and a second port 22, and the control unit 20 can control the first port 21 according to the first signal. Conduction or disconnection with the first data line 51, and conduction or disconnection between the second port 22 and the second data line 52.
  • the control unit 20 may control the output voltage of the first port 21 and/or the second port 22 according to the output voltage of the first data line 51; and/or, the control unit 20 may control the first port according to the output voltage of the second data line 52 21 and/or the output voltage of the second port 22.
  • the control unit 20 can control the conduction or disconnection between the first port 21 and the first data line 51, the second port 22 and the second data line 52, and according to the first port 21 and/or the second port
  • the output voltage of 22 is used to simulate the timing, thereby realizing simulation of different timings, so that the first electronic device 30 can control the magnitude of the charging current input to the second electronic device 40 according to the simulated timing, so that the user can select different charging currents according to needs.
  • the OTG cable may further include a first connection line 61, a second connection line 62, a first detection line 71, and a second detection line 72, where the first connection The first end of the line 61 is connected to the first data line 51, the second end of the first connection line 61 is connected to the first port 21, the first end of the second connection line 62 is connected to the second data line 52, and the second connection is The second end of the line 62 is connected to the second port 22, the first end of the first detection line 71 is connected to the first data line 51, the second end of the first detection line 71 is connected to the detection unit 23, and the second detection line 72 The first end of the second detection line 72 is connected to the second data line 52, and the second end of the second detection line 72 is connected to the detection unit 23.
  • the first data line 51 and the second data line 52 can be connected to the control unit 20 through connecting lines, so that the control unit 20 can control the connection between the first port 21 and the first data line 51, and the second port 22 and the second data line.
  • Conduction or disconnection between the lines 52; the first data line 51 and the second data line 52 can be connected to the detection unit 23 through the detection line, so that the detection unit 23 can detect the first data line 51 and the second data line 52 output voltage.
  • the timing may include DCP timing, SDP timing or CDP timing. Different timings may correspond to different current levels. For example, SDP timing corresponds to 500mA and 900mA charging currents, and CDP timing corresponds to 1.5A charging currents. DCP The timing corresponds to a charging current of 2A.
  • the OTG cable may further include an identification pin 80, the identification pin 80 may be an ID pin or a CC pin, and the identification pin 80 may be used to identify the type of the OTG cable.
  • OTG cables There are two types of OTG cables: USB_B TO USB_B (abbreviated B2B) cable and USB_C TO USB_C (abbreviated C2C) cable.
  • B2B abbreviated USB_B
  • C2C abbreviated C2C
  • the OTG cable in the embodiment of the present invention can be applied to B2B, C2C, B2C, or B2LightingC2Lighting, and the user can adjust the charging current according to specific needs through the OTG cable.
  • the control unit 20 controls to open the first switch k1 and the second switch k2, and the control unit 20 short-circuits the first port 21 and the second port 22 together;
  • the control unit 20 controls the first switch k1 and the second switch k2 to be turned on, and the first port 21 and the second port 22 are configured as high impedance, which does not affect the normal transmission and communication of the data line.
  • the control unit 20 controls to disconnect the first switch k1 and the second switch k2, the control unit 20 conducts the first port 21 and the first data line 51, and the control unit 20 conducts the second port 22 and the second data line 52;
  • the second port 22 When the output voltage of the first data line 51 is 0.6V detected through the first detection line 71 connected to the detection unit 23, the second port 22 is output as 0V or output as a low level.
  • the control unit 20 controls to disconnect the first switch k1 and the second switch k2, the control unit 20 conducts the first port 21 and the first data line 51, and the control unit 20 conducts the second port 22 and the second data line 52;
  • the first port 21 is output as 0V or is output as a low level.
  • the OTG cable in the embodiment of the present invention can be applied to the charging method in the foregoing embodiment.
  • the simulation timing in the charging method may include DCP timing, SDP timing, or CDP timing, or simulation may be performed according to the foregoing simulation timing process.
  • the first connection interface of the OTG cable is connected to the charging terminal of the first electronic device 30, and the second connection interface is connected to the power receiving terminal of the second electronic device 40, complete
  • the first switch K1 and the second switch K2 are closed;
  • the detection unit 23 detects that the identification pin (such as the ID pin) is pulled down, the user can pass the second electronic device according to the required charging current 40 sends the first signal, and the control module 20 simulates the corresponding timing according to the first signal, such as DCP timing, SDP timing or CDP timing; after a delay of 500ms, the control module 20 closes the first switch K1 and the second switch K2, and
  • the first port 21 and the second port 22 are configured as high impedance.
  • the control module can be in sleep mode; the first electronic device 30 can according to the identified timing signal simulated by the control module, according to the current corresponding to the identified timing ( For example, the SDP sequence corresponds to the charging current of 500mA and 900mA, the CDP sequence corresponds to the charging current of 1.5A, and the DCP sequence corresponds to the charging current of 2A.)
  • the second electronic device 40 is charged, so that the user can select the required charging current, which is convenient for the user to charge. .
  • the first connection interface of the OTG cable is connected to the charging terminal of the first electronic device 30, and the second connection interface is connected to the power receiving terminal of the second electronic device 40.
  • the connection is completed and ready to be charged , Close the first switch K1 and the second switch K2; when the detection unit 23 detects that the level of the identification pin (such as the CC pin) is within the OTG threshold, the user can pass the second electronic device 40 according to the required charging current
  • the control module 20 simulates the corresponding timing according to the first signal, for example, DCP timing, SDP timing or CDP timing; after a delay of 500ms, the control module 20 closes the first switch K1 and the second switch K2, and
  • the first port 21 and the second port 22 are configured as high impedance.
  • the control module 20 can be in sleep mode; the first electronic device 30 can according to the identified timing signal simulated by the control module 20, according to the current corresponding to the identified timing sequence.
  • the SDP sequence corresponds to the charging current of 500mA and 900mA
  • the CDP sequence corresponds to the charging current of 1.5A
  • the DCP sequence corresponds to the charging current of 2A
  • modules, units, sub-modules, sub-units, etc. can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, Other electronic units or combinations thereof that perform the functions described in this application.
  • ASICs application specific integrated circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing equipment
  • PLD Programmable Logic Device
  • Field-Programmable Gate Array Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array

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  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本发明实施例提供一种充电方法、OTG线缆及电子设备，充电方法应用于第一电子设备，充电方法包括：在第一电子设备与第二电子设备通过OTG线缆充电连接的情况下，第一电子设备检测OTG线缆根据第一信号模拟的时序，第一信号为第二电子设备发送的信号，第一电子设备根据所述时序控制充电电流的大小。

Description

充电方法、OTG线缆及电子设备
相关申请的交叉引用
本申请主张在2020年3月30日在中国提交的中国专利申请号No.202010236909.2的优先权，其全部内容通过引用包含于此。
技术领域
本发明涉及充电技术领域，具体涉及一种充电方法、OTG线缆及电子设备。
背景技术
OTG(ON-The-Go)是近年发展起来的技术，主要用于各种不同设备或者移动设备间的连接，以便进行数据交换。移动终端可以通过OTG功能进行反向充电，两台移动终端通过OTG线互相连接进行充电时，用户通常只能进行小电流充电，充电效率较低，时间长，不能根据需要进行配置调节，无法根据需要选择合适的充电电流的大小，给用户充电带来不便。
发明内容
有鉴于此，本发明提供一种充电方法、OTG线缆及电子设备，用以解决用户通过OTG线充电时，不能根据需要选择合适的充电电流的大小，给用户充电带来不便的问题。
为解决上述技术问题，本发明采用以下技术方案：
第一方面，根据本发明实施例的充电方法，应用于第一电子设备，充电方法包括：
在第一电子设备与第二电子设备通过OTG线缆充电连接的情况下，第一电子设备检测所述OTG线缆根据第一信号模拟的时序，其中，所述第一信号为所述第二电子设备发送的信号；
所述第一电子设备根据所述时序控制充电电流的大小。
第二方面，根据本发明实施例的充电方法，应用于OTG电缆，充电方法 包括：
在所述OTG电缆与第二电子设备连接的情况下，OTG电缆接收第一信号，所述第一信号为所述第二电子设备发送的信号；
所述OTG线缆根据所述第一信号模拟时序。
第三方面，根据本发明实施例的第一电子设备，包括：
检测模块，用于检测OTG线缆根据第一信号模拟的时序，其中，所述第一信号为第二电子设备发送的信号；
充电模块，用于根据所述时序控制充电电流的大小。
第四方面，根据本发明实施例的第二电子设备，包括：
发送模块，用于发送第一信号，在所述第二电子设备与OTG线缆连接的情况下，所述OTG线缆根据所述第一信号模拟时序。
其中，还包括输入模块，用于输入目标充电电流值，所述发送模块根据所述目标充电电流值发送所述第一信号。
其中，还包括识别模块，用于识别所述OTG线缆的类型，所述输入模块根据所述OTG线缆的类型确定所述目标充电电流值。
第五方面，根据本发明实施例的OTG线缆，包括：
充电线；
第一连接接口和第二连接接口，分别设置于所述充电线的两端，所述第一连接接口用于与第一电子设备的充电端连接，所述第二连接接口用于与所述第二电子设备的受电端连接；
控制模块，用于根据所述第二电子设备发送的第一信号模拟时序，以使所述第一电子设备根据所述时序控制输入至所述第二电子设备的充电电流的大小。
其中，所述OTG线缆还包括：
数据线，连接在所述第一连接接口和所述第二链接接口之间，所述数据线包括第一数据线和第二数据线；
所述控制模块包括：
检测单元，用于检测所述第一数据线和所述第二数据线的输出电压；
控制单元，所述控制单元与所述检测单元连接，所述控制单元上设有第 一端口和第二端口，所述控制单元用于根据所述第一信号控制所述第一端口与所述第一数据线之间导通或断开，以及所述第二端口与所述第二数据线之间导通或断开；
所述控制单元用于根据所述第一数据线的输出电压控制所述第一端口和/或所述第二端口的输出电压；
和/或，所述控制单元用于根据所述第二数据线的输出电压控制所述第一端口和/或所述第二端口的输出电压；
所述控制单元通过控制所述第一端口与所述第一数据线之间、所述第二端口与所述第二数据线之间的导通或断开，以及根据所述第一端口和/或所述第二端口的输出电压来模拟时序。
其中，所述OTG线缆还包括：
第一连接线，所述第一连接线的第一端与所述第一数据线连接，所述第一连接线的第二端与所述第一端口连接；
第二连接线，所述第二连接线的第一端与所述第二数据线连接，所述第二连接线的第二端与所述第二端口连接；
第一检测线，所述第一检测线的第一端与所述第一数据线连接，所述第一检测线的第二端与所述检测单元连接；
第二检测线，所述第二检测线的第一端与所述第二数据线连接，所述第二检测线的第二端与所述检测单元连接。
其中，所述OTG线缆还包括：
识别脚，用于识别所述OTG线缆的类型。
本发明的上述技术方案的有益效果如下：
根据本发明实施例的充电方法，应用于第一电子设备，在第一电子设备与第二电子设备通过OTG线缆充电连接的情况下，第一电子设备检测所述OTG线缆根据第一信号模拟的时序，其中，所述第一信号为所述第二电子设备发送的信号；所述第一电子设备根据所述时序控制充电电流的大小。在使用过程中，用户可以根据所需充电电流的大小通过第二电子设备向OTG线缆输入相应的第一信号，OTG线缆根据第一信号模拟相应的时序，第一电子设备可以根据检测到的OTG线缆模拟的时序控制充电电流的大小，使得用户能 够根据需要选择不同的充电电流，便于用户充电。
附图说明
图1为本发明实施例的充电方法的一个流程示意图；
图2为本发明实施例的第一电子设备与第二电子设备连接的一个示意图；
图3为本发明实施例的第一电子设备与第二电子设备连接的另一个示意图；
图4为本发明实施例的第一电子设备与第二电子设备连接的又一个示意图。
附图标记
充电线10；
控制单元20；第一端口21；第二端口22；检测单元23；
第一电子设备30；检测模块31；充电模块32；
第二电子设备40；发送模块41；输入模块42；识别模块43；
第一数据线51；第二数据线52；
第一连接线61；第二连接线62；
第一检测线71；第二检测线72；
识别脚80。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本发明保护的范围。
下面具体描述根据本发明实施例的充电方法。
根据本发明实施例的充电方法，应用于第一电子设备，如图1和图2所示，充电方法包括：
步骤S1，在第一电子设备30与第二电子设备40通过OTG线缆充电连 接的情况下，第一电子设备30检测OTG线缆根据第一信号模拟的时序，其中，第一信号为第二电子设备40发送的信号；
步骤S2，第一电子设备30根据时序控制充电电流的大小。
在使用过程中，用户可以根据所需充电电流的大小向OTG线缆输入相应的第一信号，比如用户可以通过第二电子设备40向OTG线缆输入相应的第一信号，OTG线缆根据第一信号模拟相应的时序，第一电子设备30可以根据检测到的OTG线缆模拟的时序来控制向第二电子设备40的充电电流的大小，通过上述充电方法，能够使得用户根据需要选择不同的充电电流，便于用户通过OTG线缆向第二电子设备40充电。
在本发明的一些实施例中，第二电子设备40可以根据目标充电电流值向OTG线缆发送第一信号。用户可以根据所需要的充电电流的大小向OTG线缆发送相应的第一信号，比如，用户的目标充电电流为较大的充电电流时，通过第二电子设备40可以向OTG线缆发送相应的第一信号，OTG线缆根据第一信号模拟DCP时序，第一电子设备30可以检测OTG线缆根据第一信号模拟的时序，第一电子设备30根据第一信号模拟的时序控制充电电流的大小，使得用户能够按照所需的充电电流进行充电。
在本发明的另一些实施例中，第二电子设备40可以识别OTG线缆的类型，根据OTG线缆的类型确定目标充电电流值，第二电子设备40根据目标充电电流值向OTG线缆发送第一信号。OTG线缆可以有两种:USB_B TO USB_B(简写B2B)线缆和USB_C TO USB_C(简写C2C)线缆，根据OTG线缆的类型来判断OTG线缆能够满足的充电电流，比如可以判断是否能够满足大电流充电。
在本发明的实施例中，所述时序可以包括专用充电端口(Dedicated Charging Port,DCP)时序、标准下行端口(Standard Downstream Port,SDP)时序或充电下行端口(Charging Downstream Port,CDP)时序。不同时序可以对应不同电流大小，比如，SDP时序对应500mA和900mA的充电电流，CDP时序对应1.5A的充电电流，DCP时序对应2A的充电电流。
比如，用户的目标充电电流为较大的充电电流时，通过第二电子设备40可以向OTG线缆发送第一信号，OTG线缆根据第一输入信号模拟DCP时序， 第一电子设备30检测OTG线缆模拟的DCP时序，第一电子设备根据模拟的DCP时序控制充电电流为DCP时序对应的2A的充电电流，使得用户能够按照所需的充电电流进行充电。
本发明实施例提供一种充电方法，应用于OTG电缆，充电方法包括：
在OTG电缆与第二电子设备40连接的情况下，OTG电缆接收第一信号，第一信号为第二电子设备40发送的信号；OTG线缆根据第一信号模拟时序。
在第一电子设备30与第二电子设备40通过OTG线缆充电连接的情况下，第一电子设备30检测OTG线缆根据第一信号模拟的时序，时序可以包括DCP时序、SDP时序或CDP时序，第一电子设备30根据时序控制充电电流的大小。用户可以根据所需充电电流的大小通过第二电子设备40向OTG线缆发送相应的第一信号，OTG线缆根据第一信号模拟相应的时序，第一电子设备30可以根据检测到的OTG线缆模拟的时序来控制向第二电子设备40的充电电流的大小，通过上述充电方法，能够使得用户根据需要选择不同的充电电流，便于用户通过OTG线缆向第二电子设备40充电。
本发明实施例提供一种第一电子设备，如图3所示，第一电子设备30包括检测模块31和充电模块32，检测模块31可以检测OTG线缆根据第一信号模拟的时序，其中，第一信号为第二电子设备40发送的信号，充电模块32可以根据时序控制充电电流的大小。在第一电子设备30与第二电子设备40通过OTG线缆充电连接的情况下，用户可以通过第二电子设备40向OTG线缆输入相应的第一信号，OTG线缆根据第一信号模拟相应的时序，时序可以包括DCP时序、SDP时序或CDP时序，第一电子设备30中的充电模块32可以根据检测模块31检测到的OTG线缆模拟的时序来控制向第二电子设备40的充电电流的大小，使得用户可以根据需要选择不同的充电电流，便于用户通过OTG线缆向第二电子设备40充电。
本发明实施例提供一种第二电子设备，如图3所示，第二电子设备40可以包括发送模块41，发送模块41可以发送第一信号，在第二电子设备40与OTG线缆连接的情况下，OTG线缆根据第一信号模拟时序，时序可以包括DCP时序、SDP时序或CDP时序。在第一电子设备30与第二电子设备40通过OTG线缆充电连接的情况下，通过发送模块41发送第一信号，OTG线 缆根据第一信号模拟时序，第一电子设备30可以根据检测到的OTG线缆模拟的时序来控制向第二电子设备40的充电电流的大小，使得用户可以根据需要选择不同的充电电流，便于用户通过OTG线缆向第二电子设备40充电。
在本发明的一些实施例中，如图3所示，第二电子设备40还包括输入模块42，输入模块42可以与发送模块41连接，输入模块42可以输入目标充电电流值，发送模块41根据目标充电电流值发送相应的第一信号。用户可以根据所需充电电流的大小通过输入模块42向OTG线缆发送相应的第一信号，OTG线缆根据第一信号模拟相应的时序，第一电子设备30可以根据检测到的OTG线缆模拟的时序来控制向第二电子设备40的充电电流的大小，使得用户根据需要选择不同的充电电流。
在本发明的实施例中，如图3所示，第二电子设备40还包括识别模块43，识别模块43可以与输入模块42连接，识别模块43可以识别OTG线缆的类型，输入模块42根据OTG线缆的类型确定目标充电电流值，使得OTG线缆能够满足目标充电电流值的充电电流的需求，以便可以满足大电流充电。本发明实施例提供一种OTG线缆，如图4所示，OTG线缆包括充电线10、第一连接接口、第二连接接口和控制模块，其中，第一连接接口和第二连接接口分别设置于充电线10的两端，第一连接接口用于与第一电子设备30的充电端连接，第二连接接口用于与第二电子设备40的受电端连接，控制模块用于根据第二电子设备40发送的第一信号模拟时序，以使第一电子设备30根据时序控制输入至第二电子设备40的充电电流的大小。
也就是说，OTG线缆主要由充电线10、第一连接接口、第二连接接口和控制模块构成，控制模块可以与充电线10连接，可以通过充电线10为控制模块供电，第一连接接口和第二连接接口分别设置于充电线10的两端，通过第一连接接口和第二连接接口可以连接设备，比如，通过第一电子设备30向第二电子设备40充电时，第一连接接口可以与第一电子设备30的充电端连接，第二连接接口可以与第二电子设备40的受电端连接。控制模块可以根据第二电子设备40发送的第一信号模拟时序，以使第一电子设备30根据模拟的时序控制输入至第二电子设备40的充电电流的大小。在使用过程中，用户可以根据所需的充电电流通过第二电子设备40发送相应的第一信号，控制模 块根据第一信号模拟相应的时序，不同的时序可以对应不同的充电电流，第一电子设备30根据模拟的时序控制输入至第二电子设备40的充电电流的大小，使得用户根据需要选择不同的充电电流，用户可以选择大电流充电或小电流充电，便于用户通过OTG线缆向第二电子设备40充电。
在本发明的实施例中，OTG线缆还可以包括数据线，数据线可以连接在第一连接接口和第二链接接口之间，数据线包括第一数据线51(DP)和第二数据线52(DM)，第一数据线51上可以设有可以导通或断开的第一开关k1，第二数据线52上可以设有可以导通或断开的第二开关k2，控制模块可以控制第一开关k1和第二开关k2的导通或断开，通过数据线可以在第一电子设备30和第二电子设备40之间传输数据。OTG线缆还可以包括接地线(GND)，以便于接地。
如图4所示，所述控制模块包括检测单元23和控制单元20，通过检测单元23可以检测第一数据线51和第二数据线52的输出电压；控制单元20与检测单元23连接，控制单元20可以通过稳压器(LDO)与充电线10连接，可以通过充电线10为控制单元20和检测单元23供电。控制单元20可以控制第一开关k1和第二开关k2的导通或断开，控制单元20上设有第一端口21和第二端口22，控制单元20可以根据第一信号控制第一端口21与第一数据线51之间导通或断开，以及第二端口22与第二数据线52之间导通或断开。控制单元20可以根据第一数据线51的输出电压控制第一端口21和/或第二端口22的输出电压；和/或，控制单元20可以根据第二数据线52的输出电压控制第一端口21和/或第二端口22的输出电压。控制单元20可以通过控制第一端口21与第一数据线51之间、第二端口22与第二数据线52之间的导通或断开，以及根据第一端口21和/或第二端口22的输出电压来模拟时序，从而实现不同时序的模拟，使得第一电子设备30可以根据模拟的时序控制输入至第二电子设备40的充电电流的大小，使得用户根据需要选择不同的充电电流。
在本发明的一些实施例中，如图4所示，OTG线缆还可以包括第一连接线61、第二连接线62、第一检测线71和第二检测线72，其中，第一连接线61的第一端与第一数据线51连接，第一连接线61的第二端与第一端口21 连接，第二连接线62的第一端与第二数据线52连接，第二连接线62的第二端与第二端口22连接，第一检测线71的第一端与第一数据线51连接，第一检测线71的第二端与检测单元23连接，第二检测线72的第一端与第二数据线52连接，第二检测线72的第二端与检测单元23连接。通过连接线可以将第一数据线51、第二数据线52与控制单元20连接，以便控制单元20可以通过控制第一端口21与第一数据线51之间、第二端口22与第二数据线52之间的导通或断开；通过检测线可以将第一数据线51、第二数据线52与检测单元23连接，以便通过检测单元23可以检测第一数据线51和第二数据线52的输出电压。
在本发明的实施例中，时序可以包括DCP时序、SDP时序或CDP时序，不同时序可以对应不同电流大小，比如，SDP时序对应500mA和900mA的充电电流，CDP时序对应1.5A的充电电流，DCP时序对应2A的充电电流。
在本发明的一些实施例中，OTG线缆还可以包括识别脚80，识别脚80可以为ID脚或CC脚，通过识别脚80可以用于识别OTG线缆的类型。OTG线缆可以有两种:USB_B TO USB_B(简写B2B)线缆和USB_C TO USB_C(简写C2C)线缆。本发明实施例中的OTG线缆可以应用在B2B、C2C、B2C或B2LightingC2Lighting中，通过OTG线缆可以使用户根据具体需要来调节充电电流。
在模拟时序过程中，模拟不同时序的过程不同，模拟DCP时序的具体过程如下：
控制单20控制断开第一开关k1和第二开关k2，控制单元20把第一端口21和第二端口22短接在一起；
通过与检测单元23连接的第一检测线71检测到第一数据线51的输出电压0.6v后，可以延时100ms，在通过第二检测线72检测到第二数据线52的输出电压0.6v时，控制单元20控制第一开关k1和第二开关k2闭合导通，把第一端口21和第二端口22配置为高阻，不影响数据线的正常传输通信。
模拟SDP时序的具体过程如下：
控制单元20控制断开第一开关k1和第二开关k2，控制单元20把第一端口21与第一数据线51导通，控制单元20把第二端口22与第二数据线52 导通；
通过与检测单元23连接的第一检测线71检测到第一数据线51的输出电压0.6v时，把第二端口22输出为0V或输出为低电平。
模拟CDP时序的具体过程如下：
控制单元20控制断开第一开关k1和第二开关k2，控制单元20把第一端口21与第一数据线51导通，控制单元20把第二端口22与第二数据线52导通；
通过与检测单元23连接的第一检测线71检测到第一数据线51的输出电压0.6v时，把第二端口22输出为0.6V；
通过与检测单元23连接的第二检测线72检测到第二数据线52的输出电压0.6v时，把第一端口21输出为0V或输出为低电平。
可以将本发明实施例中的OTG线缆应用于上述实施例中的充电方法中，充电方法中模拟的时序可以包括DCP时序、SDP时序或CDP时序，也可以按照上述模拟时序的过程进行模拟。
在应用过程中，OTG线缆为B2B线缆时，OTG线缆的第一连接接口与第一电子设备30的充电端连接，第二连接接口与第二电子设备40的受电端连接，完成连接准备充电情况下，闭合第一开关K1和第二开关K2；检测单元23检测到识别脚(比如ID脚)被拉低时，用户可以根据所需的充电电流的大小，通过第二电子设备40发送第一信号，控制模块20根据第一信号模拟相应的时序，比如，DCP时序、SDP时序或CDP时序；延时500ms后，通过控制模块20闭合第一开关K1、第二开关K2，并把第一端口21和第二端口22配置为高阻，此后，控制模块可以处于休眠模式；第一电子设备30可以根据识别到的控制模块模拟的时序信号，按照识别的时序所对应的电流(比如SDP时序对应500mA和900mA的充电电流，CDP时序对应1.5A的充电电流，DCP时序对应2A的充电电流)对第二电子设备40进行充电，使得用户能够选择所需的充电电流，便于用户充电。
OTG线缆为C2C线缆时，OTG线缆的第一连接接口与第一电子设备30的充电端连接，第二连接接口与第二电子设备40的受电端连接，完成连接准备充电情况下，闭合第一开关K1和第二开关K2；检测单元23检测到识别脚 (比如CC脚)电平在OTG门限范围内时，用户可以根据所需的充电电流的大小，通过第二电子设备40发送第一信号，控制模块20根据第一信号模拟相应的时序，比如，DCP时序、SDP时序或CDP时序；延时500ms后，通过控制模块20闭合第一开关K1、第二开关K2，并把第一端口21和第二端口22配置为高阻，此后，控制模块20可以处于休眠模式；第一电子设备30可以根据识别到的控制模块20模拟的时序信号，按照识别的时序所对应的电流(比如SDP时序对应500mA和900mA的充电电流，CDP时序对应1.5A的充电电流，DCP时序对应2A的充电电流)对第二电子设备40进行充电，使得用户能够选择所需的充电电流，便于用户充电。
除非另作定义，本发明中使用的技术术语或者科学术语应当为本发明所属领域内具有一般技能的人士所理解的通常意义。本发明中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也相应地改变。
可以理解的是，本公开描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，模块、单元、子模块、子单元等可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

  1. 一种充电方法，应用于第一电子设备，包括：
    在第一电子设备与第二电子设备通过OTG线缆充电连接的情况下，第一电子设备检测所述OTG线缆根据第一信号模拟的时序，其中，所述第一信号为所述第二电子设备发送至所述OTG线缆的信号；
    所述第一电子设备根据所述时序控制充电电流的大小。
  2. 一种充电方法，应用于OTG电缆，包括：
    在第一电子设备与第二电子设备通过OTG线缆充电连接的情况下，所述OTG电缆接收第一信号，所述第一信号为所述第二电子设备发送的信号；
    所述OTG线缆根据所述第一信号模拟时序。
  3. 一种第一电子设备，包括：
    检测模块，用于检测OTG线缆根据第一信号模拟的时序，其中，所述第一信号为第二电子设备发送的信号；
    充电模块，用于根据所述时序控制充电电流的大小。
  4. 一种第二电子设备，包括：
    发送模块，用于发送第一信号，在所述第二电子设备与OTG线缆连接的情况下，所述OTG线缆根据所述第一信号模拟时序。
  5. 根据权利要求4所述的第二电子设备，还包括：
    输入模块，用于输入目标充电电流值，所述发送模块根据所述目标充电电流值发送所述第一信号。
  6. 根据权利要求5所述的第二电子设备，还包括：
    识别模块，用于识别所述OTG线缆的类型，所述输入模块根据所述OTG线缆的类型确定所述目标充电电流值。
  7. 一种OTG线缆，包括：
    充电线；
    第一连接接口和第二连接接口，分别设置于所述充电线的两端，所述第一连接接口用于与第一电子设备的充电端连接，所述第二连接接口用于与所述第二电子设备的受电端连接；
    控制模块，用于根据所述第二电子设备发送的第一信号模拟时序，以使所述第一电子设备根据所述时序控制输入至所述第二电子设备的充电电流的大小。
  8. 根据权利要求7所述的OTG线缆，还包括：
    数据线，连接在所述第一连接接口和所述第二链接接口之间，所述数据线包括第一数据线和第二数据线；
    所述控制模块包括：
    检测单元，用于检测所述第一数据线和所述第二数据线的输出电压；
    控制单元，所述控制单元与所述检测单元连接，所述控制单元上设有第一端口和第二端口，所述控制单元用于根据所述第一信号控制所述第一端口与所述第一数据线之间导通或断开，以及所述第二端口与所述第二数据线之间导通或断开；
    所述控制单元用于根据所述第一数据线的输出电压控制所述第一端口和/或所述第二端口的输出电压；
    和/或，所述控制单元用于根据所述第二数据线的输出电压控制所述第一端口和/或所述第二端口的输出电压；
    所述控制单元通过控制所述第一端口与所述第一数据线之间、所述第二端口与所述第二数据线之间的导通或断开，以及根据所述第一端口和/或所述第二端口的输出电压来模拟时序。
  9. 根据权利要求8所述的OTG线缆，还包括：
    第一连接线，所述第一连接线的第一端与所述第一数据线连接，所述第一连接线的第二端与所述第一端口连接；
    第二连接线，所述第二连接线的第一端与所述第二数据线连接，所述第二连接线的第二端与所述第二端口连接；
    第一检测线，所述第一检测线的第一端与所述第一数据线连接，所述第一检测线的第二端与所述检测单元连接；
    第二检测线，所述第二检测线的第一端与所述第二数据线连接，所述第二检测线的第二端与所述检测单元连接。
  10. 根据权利要求7所述的OTG线缆，还包括：
    识别脚，用于识别所述OTG线缆的类型。
PCT/CN2021/083897 2020-03-30 2021-03-30 充电方法、otg线缆及电子设备 WO2021197310A1 (zh)

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