WO2020133189A1 - 快充协议转换电路、装置及方法 - Google Patents

快充协议转换电路、装置及方法 Download PDF

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Publication number
WO2020133189A1
WO2020133189A1 PCT/CN2018/124788 CN2018124788W WO2020133189A1 WO 2020133189 A1 WO2020133189 A1 WO 2020133189A1 CN 2018124788 W CN2018124788 W CN 2018124788W WO 2020133189 A1 WO2020133189 A1 WO 2020133189A1
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WIPO (PCT)
Prior art keywords
charging protocol
fast charging
adapter
charging
protocol
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Ceased
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PCT/CN2018/124788
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English (en)
French (fr)
Inventor
郭继龙
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Shenzhen Royole Technologies Co Ltd
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Shenzhen Royole Technologies Co Ltd
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Priority to PCT/CN2018/124788 priority Critical patent/WO2020133189A1/zh
Priority to CN201880095891.XA priority patent/CN112640246A/zh
Publication of WO2020133189A1 publication Critical patent/WO2020133189A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • This application relates to the field of charging technology, in particular to a fast charging protocol conversion circuit, device and method.
  • fast charging technology came into being.
  • the most commonly used fast charging technology on the market is the high voltage fast charging method.
  • commonly used high-voltage fast charging technologies include Qualcomm QC (Quick Charge) protocol, MediaTek PE (Pump Express) protocol, Huawei Super Charge (super fast charge) protocol and USB PD (Power Delivery) protocol, etc., but the existing There is incompatibility between the fast charging protocols.
  • the fast charging protocol on the mobile terminal must match the fast charging protocol on the adapter to achieve fast charging, that is, the mobile terminal must match the adapter, otherwise fast charging cannot be achieved. Therefore, the problem of incompatibility between the existing fast charging protocol on the mobile terminal side and the fast charging protocol on the adapter side has become a critical problem to be solved in people's daily life.
  • the embodiment of the present application discloses a fast charging protocol conversion circuit, device and method to solve the above problems.
  • An embodiment of the present application discloses a fast charging protocol conversion circuit, which is applied to a fast charging protocol conversion device.
  • the fast charging protocol conversion device includes a charging input interface and a charging output interface.
  • the fast charging protocol conversion circuit is connected to the charging input Between the interface and the charging output interface, and respectively connected to the adapter and the mobile terminal through the charging input interface and the charging output interface; characterized in that the fast charging protocol conversion circuit includes:
  • the processing unit is provided with a first communication pin, a second communication pin and a target communication pin; wherein, the first communication pin is used for data interaction between the charging input interface and the adapter through the first fast charging protocol
  • the second communication pin is used for data interaction between the charging input interface and the adapter through the second fast charging protocol
  • the target communication pin defines the charging output interface and the mobile terminal through the target fast charging Data exchange by agreement
  • An identification unit electrically connected to the charging input interface and the processing unit
  • the processing unit is further used to control the identification unit to identify whether the charging protocol of the adapter is one of the first fast charging protocol or the second fast charging protocol;
  • the charging protocol of the adapter is one of the first fast charging protocol or the second fast charging protocol
  • the fast charging protocol currently supported by the adapter is converted into the target fast charging protocol, and according to The target fast charging protocol controls the adapter and the mobile terminal to enter a fast charging mode.
  • An embodiment of the present application discloses a fast charging protocol conversion device, including:
  • Charging input interface used to connect with the adapter
  • the fast charging protocol conversion circuit as described above; the fast charging protocol conversion circuit is connected between the charging input interface and the charging output interface, and respectively passes through the charging input interface and the charging output interface and the adapter and The mobile terminal establishes a charging connection.
  • An embodiment of the present application discloses a fast charging protocol conversion method, which is applied to a fast charging protocol conversion device.
  • the fast charging protocol conversion device includes an identification unit and is used to connect to an adapter and a mobile terminal respectively; the definition of the protocol conversion device There are a first fast charging agreement, a second fast charging agreement and a target fast charging agreement; the fast charging protocol conversion method includes:
  • the charging protocol of the adapter is one of the first fast charging protocol or the second fast charging protocol
  • the fast charging protocol currently supported by the adapter is converted into the target fast charging protocol, and according to The target fast charging protocol controls the adapter and the mobile terminal to enter a fast charging mode.
  • the fast charging protocol conversion circuit, device and method disclosed in the present application can identify the quick charging protocol of the adapter, and when the quick charging protocol of the adapter is identified with the first communication pin and the second communication lead When a quick charging protocol in the third protocol unit is matched, the quick charging protocol of the adapter is replaced with a target quick charging protocol, and the adapter and the mobile terminal are controlled to enter the fast mode according to the target quick charging protocol
  • the charging mode further solves the problem of fast charging protocol compatibility between the mobile terminal and the adapter.
  • FIG. 1 is a block schematic diagram of a fast charging protocol conversion device in an embodiment of the present application.
  • FIG. 2 is a functional block diagram of a fast charging protocol conversion circuit in an embodiment of this application.
  • FIG. 3 is a functional block diagram of a fast charging protocol conversion circuit in another embodiment of this application.
  • FIG. 4 is a functional block diagram of a fast charging protocol conversion circuit in still another embodiment of this application.
  • FIG. 5 is a flowchart of steps of a fast charging protocol conversion method in an embodiment of the present application.
  • FIG. 6 is a flowchart of steps of a fast charging protocol conversion method in another embodiment of the present application.
  • FIG. 7 is a flowchart of steps of a fast charging protocol conversion method in still another embodiment of the present application.
  • first and second are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features quantity.
  • the features defined as “first” and “second” may explicitly or implicitly include one or more of the features.
  • the meaning of “plurality” is two or more, unless otherwise specifically limited.
  • FIG. 1 is a schematic block diagram of a fast charging protocol conversion device 100 according to an embodiment of the present application.
  • the fast charging protocol conversion device 100 is used to connect with the adapter 300 and the mobile terminal 500 respectively, and can communicate with the adapter 300 and the mobile terminal 500 respectively to identify the charging of the adapter 300 and the mobile terminal 500 protocol.
  • the fast charging protocol conversion device 100 recognizes that both the adapter 300 and the mobile terminal 500 are fast charging protocols
  • the fast charging protocol conversion device 100 converts the fast charging protocol of the adapter 300 into the mobile terminal 500 The required target fast charging protocol to control the adapter 300 and the mobile terminal 500 to enter the fast charging mode.
  • the fast charging protocol conversion device 100 recognizes that one of the adapter 300 and the mobile terminal 500 does not satisfy the fast charging protocol, the fast charging protocol conversion device 100 controls the adapter 300 and the mobile terminal 500 Enter the normal charging mode.
  • the charging time in the fast charging mode is shorter than the charging time in the normal mode.
  • the adapter 300 is a power adapter.
  • the mobile terminal 500 includes but is not limited to a mobile phone, a tablet computer, a notebook computer, and the like.
  • the fast charging mode may be a high-voltage charging method or a high-current charging method, which is not limited herein.
  • the fast charging protocol conversion device 100 includes a fast charging protocol conversion circuit 10, a charging input interface 20 and a charging output interface 30.
  • the protocol conversion circuit 10 is electrically connected between the charging input interface 20 and the charging output interface, and is established with the adapter 300 and the mobile terminal 500 through the charging input interface 20 and the charging output interface 30, respectively Charging connection.
  • the protocol conversion circuit 10 can also communicate with the adapter 300 through the charging input interface 20 and can communicate with the mobile terminal 500 through the charging output interface 30.
  • the charging input interface 20 and the charging output interface 30 include data pins, which can communicate through the data pins.
  • the charging input interface 20 and the charging output interface 30 are both connectors.
  • the charging input interface 20 may be a USB Type-C interface or a Micro USB interface.
  • the charging output interface 30 may also be a USB Type-C interface or a Micro USB interface.
  • the charging input interface 20 is a USB Type-C female interface or a Micro USB female interface, which is plugged into the charging output interface of the adapter 300.
  • the charging output interface 20 is a USB Type-C public interface or a Micro USB public interface, and is used for plugging into the charging input interface of the mobile terminal 500.
  • FIG. 2 is a functional block diagram of the fast charging protocol conversion circuit 10 in an embodiment of the present application.
  • the fast charging protocol conversion circuit 10 includes an identification unit 11 and a processing unit 12.
  • the identification unit 11 is electrically connected to the charging input interface 20 and the processing unit 12.
  • the processing unit 12 is provided with a first communication pin 121, a second communication pin 122 and a target communication pin 123.
  • the first communication pin 121 is used for data interaction between the charging input interface 20 and the adapter 300 through the first fast charging protocol.
  • the second communication pin 122 is used for data interaction between the charging input interface 20 and the adapter 300 through a second fast charging protocol.
  • the target communication pin 123 is used for data interaction between the charging output interface 30 and the mobile terminal 500 through a target fast charging protocol.
  • the processing unit 12 is also used to control the identification unit 11 to identify whether the charging protocol of the adapter 300 is one of the first fast charging protocol or the second fast charging protocol.
  • the processing unit 12 converts the fast charging protocol currently supported by the adapter 300 into a The target fast charging protocol, and control the adapter 300 and the mobile terminal 500 to enter the fast charging mode according to the target fast charging protocol.
  • the protocol conversion circuit 10 and the protocol conversion device 100 disclosed in the present application can recognize the fast charging protocol of the adapter 300, and when the fast charging protocol of the adapter 300 and the first fast charging protocol or the second fast charging protocol are recognized When one of the charging protocols is adapted, the fast charging protocol currently supported by the adapter 300 is replaced with a target fast charging protocol, and the adapter 300 and the mobile terminal 500 are controlled to enter the fast charging mode according to the target fast charging protocol In order to solve the problem of fast charging protocol compatibility between the mobile terminal 500 and the adapter 300.
  • the processing unit 12 may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), and on-site Field-Programmable GateArray (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • the processing unit 12 is the control center of the fast charging protocol conversion device 100, and the entire interface is connected using various interfaces and lines Each part of the fast charging protocol conversion device 100.
  • FIG. 3 is a functional block diagram of a fast charging protocol conversion circuit 10 in another embodiment of the present application.
  • the fast charging protocol conversion circuit further includes a conversion unit 13.
  • the conversion unit 13 is electrically connected between the charging input interface 20 and the charging output interface 30, and is electrically connected to the processing unit 12.
  • the controlling the adapter 300 and the mobile terminal 500 to enter the fast charging mode according to the target fast charging protocol includes: controlling the conversion unit 13 to output a target charging voltage and a target charging current according to the target fast charging protocol, and Make the adapter 300 and the mobile terminal 500 enter the fast charging mode.
  • the conversion unit 13 is used to convert the charging voltage output by the adapter 300 into the charging voltage required by the mobile terminal 500.
  • the conversion unit 16 is a DC-DC converter.
  • the identification unit 11 is a switch.
  • the switch is electrically connected to the charging input interface 20, the first communication pin 121 and the second communication pin 122.
  • the controlling the identification unit 11 identifies whether the charging protocol adopted by the adapter 300 is one of the first fast charging protocol or the second fast charging protocol, which specifically includes: when the switch establishes the charging input When the electrical connection between the interface 20 and the first communication pin 121 is made, it is determined whether the charging protocol of the adapter 300 that communicates with the first communication pin 121 through the charging input interface 20 is the The first fast charging protocol; or, when the switch establishes an electrical connection between the charging input interface 20 and the second communication pin 122, it is determined that the second communication is communicated with the second input pin 122 through the charging input interface Whether the charging protocol of the adapter 300 through which the pin 122 communicates is the second fast charging protocol.
  • first communication pin 121 and the second communication pin 122 may perform handshake communication with the adapter 300 through the D+ and D- data pins of the charging input interface 20, if the communication is successful, It means that the charging protocol of the adapter 300 is adapted to the first fast charging protocol or the second fast charging protocol.
  • the controlling the identification unit 11 identifies whether the charging protocol adopted by the adapter 300 is one of the first fast charging protocol or the second fast charging protocol, specifically including: The switch establishes an electrical connection between the charging input interface 20 and the first communication pin 121 to determine whether the charging protocol of the adapter 300 is compatible with the first fast charging protocol; when determining that the adapter 300 When the charging protocol does not match the first fast charging protocol, control the switch to establish an electrical connection between the charging input interface 20 and the second communication pin 122 to determine the charging protocol of the adapter 300 Whether it is compatible with the second fast charging protocol.
  • the processing unit 12 is further provided with a third communication pin 123, the third communication pin 123 is provided for all The charging input interface 20 and the adapter 300 perform data interaction through a third fast charging protocol; the switch is also electrically connected to the third communication pin 123.
  • the processing unit 12 controls the switch to establish a connection between the charging input interface 20 and the third communication pin 123 It is electrically connected to determine whether the charging protocol of the adapter 300 is adapted to the third fast charging protocol.
  • the number of types of fast charging protocols of the adapter 300 compatible with the fast charging protocol conversion device 100 can be set according to specific design requirements. For example, when four different fast charging protocols need to be identified, the processing unit 12 may also set a fourth communication pin and provide data interaction between the charging input interface 20 and the adapter 300 through the fourth fast charging protocol , Not limited here.
  • the switch may be one of two switches or one of three switches.
  • the switch should be one of N switches.
  • the switch is an analog switch.
  • the analog switch has the characteristics of low power consumption, fast speed, no mechanical contacts, small size and long service life.
  • the identification unit 11 may also be a multiplexer, which is not limited here, as long as the electrical connection between the charging input interface 20 and each communication interface can be established or disconnected separately That's it.
  • the processing unit 12 controls the adapter 300 to increase the output voltage to meet The charging voltage of its fast charging protocol.
  • the processing unit 12 controls the adapter 300 and the The mobile terminal 500 enters the normal charging mode.
  • the first fast charging protocol, the second fast charging protocol, and the third fast charging protocol are high voltage fast charging protocols, for example, a fast charging with a charging voltage of 9V and a charging current of 2A protocol.
  • the first fast charging agreement, the second fast charging agreement and the third fast charging agreement may be Qualcomm QC (Quick Charge) agreement, MediaTek PE (Pump Express) agreement, Huawei Super Charge (super fast charge) Charge) protocol and USB PD (Power Delivery) protocol.
  • the target fast charging protocol is a low voltage high current fast charging protocol, for example, a fast charging protocol with a charging voltage of 4.4V and a charging current of 5A.
  • the target fast charging protocol is a flexible charging protocol.
  • the target fast charging protocol may also be other high current fast charging protocols, which is not limited herein.
  • the fast charging protocol conversion device 100 since the high-voltage fast charging protocol of the adapter 300 is converted into a low-voltage high-current quick charging protocol to quickly charge the mobile terminal 500, the heat generated by the mobile terminal 500 due to fast charging can be reduced, The heat is transferred to the fast charging protocol conversion device 100.
  • protocols such as QC, PE, and PD are high-voltage fast charging protocols, which have the advantages of strong cable compatibility and low cost, the fast charging protocol conversion device 100 has the dualities of high-voltage fast charging and low-voltage direct charging The advantage is that it can reduce the cost of the USB cable and the heat of the mobile terminal 500.
  • FIG. 4 is a functional block diagram of a fast charging protocol conversion circuit 10 in another embodiment of the present application.
  • the fast charging protocol conversion circuit 10 further includes a sampling unit 14 and an adjustment unit 15.
  • the sampling unit 14 is electrically connected between the charging output interface 30 and the processing unit 12, and is configured to sample the charging current of the mobile terminal 500 through the charging output interface 30 to obtain a sampling current.
  • the adjustment unit 15 is electrically connected between the conversion unit 13 and the processing unit 12.
  • the processing unit 12 is further configured to compare the sampling current with a reference current, and control the output of the adjustment unit 15 according to the comparison result, and then control the conversion unit 13 to adjust the output target charging current.
  • the reference current is the currently required charging current sent by the mobile terminal 500 to the processing unit 12 during the charging process.
  • the charging current will change as the charging progresses. For example, when the battery of the mobile terminal 500 is nearly full, the required charging current will decrease.
  • the mobile terminal 500 sends the required charging current to all ⁇ processing unit 12
  • the processing unit 12 controls the output of the adjustment unit 15 and thereby controls the charging current output by the conversion unit 13 to decrease so that the target charging current is equal to the reference current.
  • the sampling unit 14 may be electrically connected to the ground pin of the charging output interface 30 through a sampling resistor, and connected to a proportional operational amplifier, that is, after sampling through the sampling resistor, the current signal is converted into a voltage signal and then proportional After being amplified, it is output to the ADC (Analog-to-Digital Converter) pin of the processing unit 12.
  • ADC Analog-to-Digital Converter
  • the sampled current signal is input to the ADC pin of the processing unit 12 after being converted and amplified by multiples of the operational amplifier.
  • the processing unit 12 can obtain the current value of the current charge according to the sampled signal, the sampled current value and the target reference current value After the comparison, the output current is adjusted. For example, when the charging current is too large, the conversion unit 13 can be controlled to reduce the output, so that the safety of charging the mobile terminal 500 can be improved.
  • the adjustment unit 15 may be a digital potentiometer that has the advantages of flexible use, high adjustment accuracy, no contact, low noise, less fouling, anti-vibration, anti-interference, small size, and long life.
  • the output of the digital potentiometer is connected to the reference (REF) pin of the DC-DC converter, so that the output of the DC-DC converter can be adjusted.
  • the processing unit 12 adjusts the output by controlling the digital potentiometer, so that the reference recommendation of the DC-DC converter obtains a corresponding change, the output of the DC-DC converter decreases, and the charging current also decreases.
  • the processing unit 12 also communicates with the mobile terminal 500 to identify the charging protocol of the mobile terminal 500, and when the charging protocol of the mobile terminal 500 and the target fast charging protocol are identified When not adapted, the adapter 300 and the mobile terminal 500 are controlled to enter a normal charging mode.
  • FIG. 5 is a flowchart of steps of a fast charging protocol conversion method according to an embodiment of the present application.
  • the fast charging protocol conversion method is applied to a fast charging protocol conversion device 100.
  • the fast charging protocol conversion device includes an identification unit 11 and is used to connect to the adapter 300 and the mobile terminal 500 respectively; the protocol conversion device 100 defines The first fast charge agreement, the second fast charge agreement and the target fast charge agreement.
  • the fast charging protocol conversion method includes the following steps:
  • Step S51 Control the identification unit 11 to identify whether the charging protocol of the adapter 300 is one of the first fast charging protocol or the second fast charging protocol.
  • Step S52 when it is recognized that the charging protocol of the adapter 300 is one of the first fast charging protocol or the second fast charging protocol, the fast charging protocol currently supported by the adapter 300 is converted to the target fast charging Charging protocol, and control the adapter 300 and the mobile terminal 500 to enter a fast charging mode according to the target fast charging protocol.
  • the protocol conversion method disclosed in this application can identify the fast charging protocol of the adapter 300, and when it is recognized that the charging protocol of the adapter 300 is adapted to one of the first fast charging protocol or the second fast charging protocol Time, the fast charging protocol of the adapter 300 is replaced with the target fast charging protocol, and the adapter 300 and the mobile terminal 500 are controlled to enter the fast charging mode according to the target fast charging protocol, thereby solving the problem of the mobile terminal 500 and the adapter 300 The problem of compatibility between fast charging protocols.
  • the first fast charging protocol and the second fast charging protocol are high voltage fast charging protocols;
  • the target fast charging protocol is a low voltage high current fast charging protocol.
  • controlling the adapter 300 and the mobile terminal 500 to enter the fast charging mode according to the target fast charging protocol includes: controlling the protocol conversion device 100 to output the target charging according to the target fast charging protocol The voltage and the target charging current cause the adapter 300 and the mobile terminal 500 to enter a fast charging mode.
  • the controlling the identification unit 11 identifies whether the charging protocol of the adapter 300 is one of the first fast charging protocol or the second fast charging protocol, which specifically includes: determining the adapter 300 Whether the charging protocol of the adapter is compatible with the first fast charging protocol; when it is determined that the charging protocol of the adapter 300 is not compatible with the first fast charging protocol, the charging protocol of the adapter 300 and the second Whether the fast charging protocol is suitable.
  • the fast charging protocol conversion device 100 further defines a third fast charging protocol; the method further includes: when it is determined that the charging protocol of the adapter 300 is not compatible with the second fast charging protocol, determining the Whether the charging protocol of the adapter 300 is adapted to the third fast charging protocol.
  • FIG. 6 is a flowchart of steps of a fast charging protocol conversion method in another embodiment of the present application. Unlike the method shown in FIG. 5, the fast charging protocol conversion method further includes the following steps:
  • Step S61 when it is recognized that the charging protocol of the adapter 300 is not compatible with one of the first fast charging protocol and the second fast charging protocol, the adapter 300 and the mobile terminal 500 are controlled to enter a normal charging mode .
  • the multifunctional practicability of the fast charging protocol conversion device 100 is realized, which can support both the fast charging mode and the ordinary charging mode.
  • FIG. 7 is a flowchart of steps of a fast charging protocol conversion method in another embodiment of the present application. Different from the method shown in FIG. 5, the fast charging protocol conversion method further includes before step S51:
  • Step S71 Identify the charging protocol of the mobile terminal 500.
  • step S72 it is determined whether the charging protocol of the mobile terminal 500 is compatible with the target fast charging protocol unit; if so, step S51 is performed; if not, step S73 is performed.
  • step S73 the adapter 300 and the mobile terminal 500 are controlled to enter a normal charging mode.
  • the mobile terminal 500 it is first determined whether the mobile terminal 500 has a target fast charging protocol that matches the protocol conversion device 100. If the mobile terminal 500 does not have a target fast charging protocol, the method described in FIG. 4 is not performed. Directly controlling the adapter 300 and the mobile terminal 500 to enter a normal charging mode, thereby saving resource configuration and improving charging efficiency.

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Abstract

本申请公开一种快充协议转换电路(10)，包括识别单元(11)和处理单元(12)。识别单元(11)电连接于充电输入接口(20)及处理单元(12)。处理单元(12)设置有第一通信引脚(121)、第二通信引脚(122)和目标通信引脚(123)。处理单元(12)还用于控制识别单元(11)识别适配器(300)的充电协议是否为第一快充协议或第二快充协议之一。当识别出适配器(300)的充电协议为第一快充协议或者第二快充协议之一时，将适配器(300)当前所支撑的快充协议转换为目标快充协议，并根据目标快充协议控制适配器(300)和移动终端(500)进入快速充电模式。本申请能够解决移动终端(500)和适配器(300)之间的快充协议兼容的问题。

Description

快充协议转换电路、装置及方法 技术领域
本申请涉及充电技术领域，尤其涉及一种快充协议转换电路、装置及方法。
背景技术
为了满足人们对移动终端的快速充电需求，快充技术应运而生，目前市场上应用最普遍的快充技术为高电压的快充方式。例如，常用的高电压的快充技术有高通QC(Quick Charge)协议、联发科PE(Pump Express)协议、华为Super Charge(超级快充)协议和USB PD(Power Delivery)协议等，但是现有的快充协议之间不兼容，移动终端端的快充协议必须与适配器端的快充协议匹配时才能实现快充，即必须移动终端与适配器相匹配，否则无法实现快充。因此，现有的移动终端端的快充协议和适配器端的快充协议之间不兼容的问题已经成为人们日常生活中亟待解决的关键问题。
发明内容
本申请实施例公开一种快充协议转换电路、装置及方法以解决上述问题。
本申请实施例公开一种快充协议转换电路，应用于快充协议转换装置，所述快充协议转换装置包括充电输入接口和充电输出接口，所述快充协议转换电路连接于所述充电输入接口和所述充电输出接口之间，并分别通过所述充电输入接口和所述充电输出接口与适配器和移动终端相连；其特征在于，所述快充协议转换电路包括：
处理单元，设置有第一通信引脚、第二通信引脚和目标通信引脚；其中，所述第一通信引脚供所述充电输入接口和所述适配器通过第一快充协议进行数据交互；所述第二通信引脚供所述充电输入接口和所述适配器通过第二快充协议进行数据交互；所述目标通信引脚定义有所述充电输出接口和所述移动终端通过目标快充协议进行数据交互；以及
识别单元，电连接于所述充电输入接口及所述处理单元；
所述处理单元还用于控制所述识别单元识别所述适配器的充电协议是否 为所述第一快充协议或所述第二快充协议之一；
当识别出所述适配器的充电协议为所述第一快充协议或者所述第二快充协议之一时，将所述适配器当前所支撑的快充协议转换为所述目标快充协议，并根据所述目标快充协议控制所述适配器和所述移动终端进入快速充电模式。
本申请实施例公开一种快充协议转换装置，包括：
充电输入接口，用于与适配器相连；
充电输出接口，用于与移动终端相连；以及
如上所述的快充协议转换电路；所述快充协议转换电路连接于所述充电输入接口和所述充电输出接口之间，并分别通过所述充电输入接口和所述充电输出接口与适配器和移动终端建立充电连接。
本申请实施例公开一种快充协议转换方法，应用于一快充协议转换装置中，所述快充协议转换装置包括识别单元，并用于分别与适配器和移动终端相连；所述协议转换装置定义有第一快充协议、第二快充协议及目标快充协议；所述快充协议转换方法，包括：
控制所述识别单元识别所述适配器的充电协议是否为所述第一快充协议或所述第二快充协议之一；
当识别出所述适配器的充电协议为所述第一快充协议或者所述第二快充协议之一时，将所述适配器当前所支撑的快充协议转换为所述目标快充协议，并根据所述目标快充协议控制所述适配器和所述移动终端进入快速充电模式。
本申请公开的快充协议转换电路、装置及方法，能够对适配器的快充协议进行识别，并当识别出所述适配器的快充协议与所述第一通信引脚、所述第二通信引脚及所述第三协议单元中的一个快充协议相匹配时，将适配器的快充协议换成目标快充协议，并根据所述目标快充协议控制所述适配器和所述移动终端进入快速充电模式，进而解决了移动终端和适配器之间的快充协议兼容的问题。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一 些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请一实施例中的快充协议转换装置的方框示意图。
图2为本申请一实施例中的快充协议转换电路的原理框图。
图3为本申请另一实施例中的快充协议转换电路的原理框图。
图4为本申请再一实施例中的快充协议转换电路的原理框图。
图5为本申请一实施方式中的快充协议转换方法的步骤流程图。
图6为本申请另一实施方式中的快充协议转换方法的步骤流程图。
图7为本申请再一实施方式中的快充协议转换方法的步骤流程图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本发明的实施方式的描述中，需要理解的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的实施方式的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
当一个元件被认为与另一个元件“相连”时，它可以是直接连接到另一个元件或者可能同时存在居中元件。除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。
请参阅图1，图1为本申请一实施例中的快充协议转换装置100的方框示意图。所述快充协议转换装置100用于分别与适配器300以及移动终端500相连，并能够分别与所述适配器300和所述移动终端500进行通信以识别所述适配器300和所述移动终端500的充电协议。当所述快充协议转换装置100 识别出所述适配器300和所述移动终端500均为快充协议时，所述快充协议转换装置100将所述适配器300的快充协议转换成移动终端500的所需的目标快充协议以控制所述适配器300和移动终端500进入快速充电模式。当所述快充协议转换装置100识别出所述适配器300和所述移动终端500的其中一个不满足快充协议时，所述快充协议转换装置100控制所述适配器300及所述移动终端500进入普通充电模式。
其中，在所述移动终端500需要获得相同电量的情况下，所述快速充电模式的充电时间小于普通模式的充电时间。
在本实施方式中，所述适配器300为电源适配器。所述移动终端500包括但不限于手机、平板电脑、笔记本电脑等。
需要说明的是，所述快速充电模式可以是高电压的充电方式，也可以是高电流的充电方式，在此不做限定。
所述快充协议转换装置100包括快充协议转换电路10、充电输入接口20以及充电输出接口30。所述协议转换电路10电连接于所述充电输入接口20和充电输出接口之间，并分别通过所述充电输入接口20和所述充电输出接口30与所述适配器300和所述移动终端500建立充电连接。另外，所述协议转换电路10还能够通过所述充电输入接口20与所述适配器300进行通信，并能够通过所述充电输出接口30与所述移动终端500进行通信。
其中，所述充电输入接口20和充电输出接口30包括数据引脚，可通过数据引脚进行通信。
其中，所述充电输入接口20和所述充电输出接口30均为连接器。示例地，所述充电输入接口20可以为USB Type-C接口或者Micro USB接口。所述充电输出接口30也可以为USB Type-C接口或者Micro USB接口。
优选地，所述充电输入接口20为USB Type-C母接口或者Micro USB母接口，插接于所述适配器300的充电输出接口。所述充电输出接口20为USB Type-C公接口或者Micro USB公接口，用于与移动终端500的充电输入接口插接。
请再参阅图2，图2为本申请一实施方式中的快充协议转换电路10的原理框图。如图2所示，所述快充协议转换电路10包括识别单元11以及处理单 元12。其中，所述识别单元11电连接于所述充电输入接口20及所述处理单元12。所述处理单元12设置有第一通信引脚121、第二通信引脚122和目标通信引脚123。其中，所述第一通信引脚121供所述充电输入接口20和所述适配器300通过第一快充协议进行数据交互。所述第二通信引脚122供所述充电输入接口20和所述适配器300通过第二快充协议进行数据交互。所述目标通信引脚123供所述充电输出接口30和所述移动终端500通过目标快充协议进行数据交互。所述处理单元12还用于控制所述识别单元11识别所述适配器300的充电协议是否为所述第一快充协议或所述第二快充协议其中之一。当识别出所述适配器300的充电协议为所述第一快充协议或者所述第二快充协议其中之一时，所述处理单元12将所述适配器300当前所支撑的快充协议转换为所述目标快充协议，并根据所述目标快充协议控制所述适配器300和所述移动终端500进入快速充电模式。
本申请公开的协议转换电路10及协议转换装置100能够对适配器300的快充协议进行识别，并当识别出所述适配器300的快充协议与所述第一快充协议或者所述第二快充协议其中之一相适配时，将适配器300当前所支撑的快充协议换成目标快充协议，并根据所述目标快充协议控制所述适配器300和所述移动终端500进入快速充电模式，进而解决了移动终端500和适配器300之间的快充协议兼容的问题。
其中，处理单元12可以是中央处理单元(Central ProcessingUnit，CPU)，还可以是其他通用处理器、数字信号处理器(Digital SignalProcessor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field-Programmable GateArray，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等，所述处理单元12是所述快充协议转换装置100的控制中心，利用各种接口和线路连接整个所述快充协议转换装置100的各个部分。
请再参阅图3，其为本申请另一实施方式中的快充协议转换电路10的原理框图。如图3所示，所述所述快充协议转换电路还包括转换单元13。所述转换单元13电连接于所述充电输入接口20和所述充电输出接口30之间，并 电连接所述处理单元12。所述根据所述目标快充协议控制所述适配器300和所述移动终端500进入快速充电模式，包括：根据所述目标快充协议控制所述转换单元13输出目标充电电压和目标充电电流，进而使得所述适配器300和所述移动终端500进入快速充电模式。
其中，所述转换单元13用于将所述适配器300输出的充电电压转换为移动终端500需要的充电电压，在本实施方式中，所述转换单元16为DC-DC转换器。
在一些实施方式中，所述识别单元11为开关。所述开关电连接于所述充电输入接口20、所述第一通信引脚121和所述第二通信引脚122。所述控制所述识别单元11识别所述适配器300采用的充电协议是否为所述第一快充协议或所述第二快充协议其中之一，具体包括：当所述开关建立所述充电输入接口20与所述第一通信引脚121之间的电性连接时，判断通过所述充电输入接口20与所述第一通信引脚121进行通信的所述适配器300的充电协议是否为所述第一快充协议；或者，当所述开关建立所述充电输入接口20与所述第二通信引脚122之间的电性连接时，判断通过所述充电输入接口20与所述第二通信引脚122进行通信的所述适配器300的充电协议是否为所述第二快充协议。
可以理解，所述第一通信引脚121和所述第二通信引脚122可分别通过所述充电输入接口20的D+和D-数据引脚与所述适配器300进行握手通信，若通信成功，则表明适配器300的充电协议与所述第一快充协议或者所述第二快充协议相适配。
在另一些实施方式中，所述控制所述识别单元11识别所述适配器300采用的充电协议是否为所述第一快充协议或所述第二快充协议其中之一，具体包括：控制所述开关建立所述充电输入接口20与所述第一通信引脚121之间的电连接，判断所述适配器300的充电协议与所述第一快充协议是否适配；当判断所述适配器300的充电协议与所述第一快充协议不适配时，控制所述开关建立所述充电输入接口20和所述第二通信引脚122之间的电连接以判断所述适配器300的充电协议与所述第二快充协议是否适配。
在一些实施方式中，为了使得所述快充协议转换装置100能够兼容更多不同的快充协议，所述处理单元12还设置第三通信引脚123，所述第三通信引 脚123供所述充电输入接口20和所述适配器300通过第三快充协议进行数据交互；所述开关还与所述第三通信引脚123电连接。当判断所述适配器300的充电协议与所述第二快充协议不适配时，所述处理单元12控制所述开关建立所述充电输入接口20和所述第三通信引脚123之间的电连接以判断所述适配器300的充电协议与所述第三快充协议是否适配。
需要说明的是，所述快充协议转换装置100所能兼容的适配器300的快充协议的种类的数量可以根据具体的设计需求而设定。例如，当需要识别四种不同的快充协议时，所述处理单元12还可以设置第四通信引脚，并供所述充电输入接口20和所述适配器300通过第四快充协议进行数据交互，在此不做限定。
示例地，所述开关可以为二选一开关或者三选一开关。当然，当所述处理单元12设置有N个通信接口时，所述开关应为N选一开关。优选地，所述开关为模拟开关。其中，模拟开关具有功耗低、速度快、无机械触点、体积小和使用寿命长等特点。在其他实施方式中，所述识别单元11还可以为多路复用器，在此不做限定，只要能实现分别建立或者断开所述充电输入接口20和各个通信接口之间的电性连接即可。
在一些实施方式中，当所述适配器300的充电协议与所述第一快充协议或者所述第二快充协议适配时，所述处理单元12控制所述适配器300将输出电压提高至符合其快充协议的充电电压。当所述适配器300的快充协议与所第一快充协议、所述第二快充协议和所述第三快充协议均不适配时，所述处理单元12控制所述适配器300以及所述移动终端500进入普通充电模式。
在一些实施方式中，所述第一快充协议、所述第二快充协议及所述第三快充协议为高电压快充协议，例如，充电电压为9V且充电电流为2A的快充协议。其中，所述第一快充协议、所述第二快充协议及所述第三快充协议可以分别为高通QC(Quick Charge)协议、联发科PE(Pump Express)协议、华为Super Charge(超级快充)协议和USB PD(Power Delivery)协议中的一种。所述目标快充协议为低电压高电流快充协议，例如，充电电压为4.4V充电电流为5A的快充协议。在本实施方式中，所述目标快充协议为柔充协议。在其他实施方式中，所述目标快充协议还可以是其他高电流快充协议，在此不做限定。
在该实施方式中，由于将适配器300的高电压的快充协议转换成低电压高电流的快充协议为所述移动终端500进行快速充电，可以减少移动终端500因快速充电而产生的热量，而将热量转移至快充协议转换装置100上。此外，由于QC、PE及PD等协议为高电压快充协议具有线缆兼容性强，成本低的优势，进而使得所述快充协议转换装置100具有高电压快充和低电压直充的双重优势，既可以降低USB线缆成本也可以降低移动终端500的发热。
请再参阅图4，其为本申请再一实施方式中的快充协议转换电路10的原理框图。如图4所示，所述快充协议转换电路10还包括采样单元14及调节单元15。所述采样单元14电连接于所述充电输出接口30与所述处理单元12之间，用于通过所述充电输出接口30对所述移动终端500的充电电流进行采样以得到采样电流。所述调节单元15电连接于所述转换单元13与所述处理单元12之间。所述处理单元12还用于将所述采样电流与基准电流进行比较，并根据比较结果控制所述调节单元15的输出，进而控制所述转换单元13对输出的目标充电电流进行调节。
其中，所述基准电流为在充电过程中所述移动终端500向所述处理单元12发送的当前所需的充电电流。由于在充电过程中，随着充电的进行充电电流会发生变化，例如，移动终端500的电池快要充满时，需要的充电电流会减小，此时，移动终端500将需要的充电电流发送至所述处理单元12。例如，当所述采样电流大于基准电流时，所述处理单元12控制所述调节单元15的输出，进而控制所述转换单元13输出的充电电流降低以使得目标充电电流与基准电流相等。
示例地，所述采样单元14可以通过采样电阻与所述充电输出接口30的接地引脚电连接，并连接一比例运算放大器，即通过采样电阻进行采样后将电流信号转换为电压信号再进行比例放大后输出至所述处理单元12的ADC(Analog-to-Digital Converter，模数转换器)引脚。例如，采样的电流信号经过转换和运放的倍数放大后，输入到处理单元12的ADC引脚，处理单元12的可以根据采样的信号获得当前充电的电流值，采样电流值与目基准流值进行比较后，做输出电流的调整，例如，当充电电流过大时，可以控制转换单元13降低输出，从而可以提高对移动终端500充电的安全性。
在一些实施方式中，所述调节单元15可以为具有使用灵活、调节精度高、无触点、低噪声、不易污损、抗振动、抗干扰、体积小、寿命长等优点的数字电位器。所述数字电位器的输出连接DC-DC转换器的参考(REF)引脚，进而可以调节所述DC-DC转换器的输出。例如，当充电电流过大时，则处理单元12通过控制数字电位器调节输出，使得DC-DC转换器的参考引荐获得相应的变化，DC-DC转换器的输出降低，充电电流也减小。
在一些实施方式中，所述处理单元12还与所述移动终端500进行通信以识别所述移动终端500的充电协议，并当识别出所述移动终端500的充电协议与所述目标快充协议不适配时，控制所述适配器300以及所述移动终端500进入普通充电模式。
请再参阅图5，图5为本申请一实施方式中的快充协议转换方法的步骤流程图。所述快充协议转换方法应用于一快充协议转换装置100中，所述快充协议转换装置包括识别单元11，并用于分别与适配器300和移动终端500相连；所述协议转换装置100定义有第一快充协议、第二快充协议及目标快充协议。所述如图5所示，所述快充协议转换方法包括如下步骤：
步骤S51，控制所述识别单元11识别所述适配器300的充电协议是否为所述第一快充协议或所述第二快充协议之一。
步骤S52，当识别出所述适配器300的充电协议为所述第一快充协议或者所述第二快充协议之一时，将所述适配器300当前所支撑的快充协议转换为所述目标快充协议，并根据所述目标快充协议控制所述适配器300和所述移动终端500进入快速充电模式。
本申请公开的协议转换方法能够对适配器300的快充协议进行识别，并当识别出所述适配器300的充电协议与所述第一快充协议或者所述第二快充协议之一相适配时，将适配器300的快充协议换成目标快充协议，并根据所述目标快充协议控制所述适配器300和所述移动终端500进入快速充电模式，进而解决了移动终端500和适配器300之间的快充协议兼容的问题。
其中，所述第一快充协议和所述第二快充协议为高电压快充协议；所述目标快充协议为低电压高电流快充协议。
在一些实施方式中，所述根据所述目标快充协议控制所述适配器300和所 述移动终端500进入快速充电模式，包括：根据所述目标快充协议控制所述协议转换装置100输出目标充电电压和目标充电电流，进而使得所述适配器300和所述移动终端500进入快速充电模式。
在一些实施方式中，所述控制所述识别单元11识别所述适配器300的充电协议是否为所述第一快充协议或所述第二快充协议之一，具体包括：判断所述适配器300的充电协议与所述第一快充协议是否适配；当判断所述适配器300的充电协议与所述第一快充协议不适配时，判断所述适配器300的充电协议与所述第二快充协议是否适配。
进一步地，所述快充协议转换装置100还定义第三快充协议；所述方法还包括：当判断所述适配器300的充电协议与所述第二快充协议不适配时，判断所述适配器300的充电协议与所述第三快充协议是否适配。
请再参阅图6，图6为本申请另一实施方式中的快充协议转换方法的步骤流程图。与图5中所示的方法不同的是，所述快充协议转换方法还包括如下步骤：
步骤S61，当识别出适配器300的充电协议与所述第一快充协议和所述第二快充协议之一均不适配时，控制所述适配器300以及所述移动终端500进入普通充电模式。
如此是实现了快充协议转换装置100的多功能实用性，既可以支持快速充电模式也可以支持普通充电模式。
请再参阅图7，图7为本申请再一实施方式中的快充协议转换方法的步骤流程图。与图5中所示的方法不同的是，所述快充协议转换方法在步骤S51之前还包括：
步骤S71，识别所述移动终端500的充电协议。
步骤S72，判断所述移动终端500的充电协议与所述目标快充协议单元是否相适配；若是，则执行步骤S51；若否，则执行步骤S73。
步骤S73，控制所述适配器300以及所述移动终端500进入普通充电模式。
在本实施方式中，首先判断移动终端500是否具有与所述协议转换装置100匹配的目标快充协议，若所述移动终端500不具有目标快充协议则不执行图4中所述的方法，直接控制所述适配器300以及所述移动终端500进入普通 充电模式，进而可以节省资源配置，提高充电效率。
需要说明的是，对于前述的各个方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为依据本申请，某一些步骤可以采用其他顺序或者同时进行。其次，本领技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本申请所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详细描述的部分，可以参见其他实施例的相关描述。
本申请实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施例进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施例及应用范围上均会有改变之处，综上，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种快充协议转换电路，应用于快充协议转换装置，所述快充协议转换装置包括充电输入接口和充电输出接口，所述快充协议转换电路连接于所述充电输入接口和所述充电输出接口之间，并分别通过所述充电输入接口和所述充电输出接口与适配器和移动终端相连；其特征在于，所述快充协议转换电路包括：
    处理单元，设置有第一通信引脚、第二通信引脚和目标通信引脚；其中，所述第一通信引脚供所述充电输入接口和所述适配器通过第一快充协议进行数据交互；所述第二通信引脚供所述充电输入接口和所述适配器通过第二快充协议进行数据交互；所述目标通信引脚供所述充电输出接口和所述移动终端通过目标快充协议进行数据交互；以及
    识别单元，电连接于所述充电输入接口及所述处理单元；
    所述处理单元还用于控制所述识别单元识别所述适配器的充电协议是否为所述第一快充协议或所述第二快充协议之一；
    当识别出所述适配器的充电协议为所述第一快充协议或者所述第二快充协议之一时，将所述适配器当前所支撑的快充协议转换为所述目标快充协议，并根据所述目标快充协议控制所述适配器和所述移动终端进入快速充电模式。
  2. 如权利要求1所述的快充协议转换电路，其特征在于，所述快充协议转换电路还包括：
    转换单元，电连接于所述充电输入接口和所述充电输出接口之间，并电连接所述处理单元；
    所述根据所述目标快充协议控制所述适配器和所述移动终端进入快速充电模式，包括：根据所述目标快充协议控制所述转换单元输出目标充电电压和目标充电电流，进而使得所述适配器和所述移动终端进入快速充电模式。
  3. 如权利要求1所述的快充协议转换电路，其特征在于，所述识别单元为开关；所述开关电连接于所述充电输入接口、所述第一通信引脚和所述第二通信引脚；
    所述控制所述识别单元识别所述适配器的充电协议是否为所述第一快充协议或所述第二快充协议之一，具体包括：
    当所述开关建立所述充电输入接口与所述第一通信引脚之间的电性连接时，判断通过所述充电输入接口与所述第一通信引脚进行通信的所述适配器的充电协议是否为所述第一快充协议；或
    当所述开关建立所述充电输入接口与所述第二通信引脚之间的电性连接时，判断通过所述充电输入接口与所述第二通信引脚进行通信的所述适配器的充电协议是否为所述第二快充协议。
  4. 如权利要求1所述的快充协议转换电路，其特征在于，所述识别单元为开关；所述开关电连接于所述充电输入接口、所述第一通信引脚和所述第二通信引脚；
    所述控制所述识别单元识别所述适配器采用的充电协议是否为所述第一快充协议或所述第二快充协议之一，具体包括：
    控制所述开关建立所述充电输入接口与所述第一通信引脚之间的电连接，并判断所述适配器的充电协议与所述第一快充协议是否适配；
    当所述适配器的充电协议与所述第一快充协议不适配时，控制所述开关建立所述充电输入接口和所述第二通信引脚之间的电连接，并判断所述适配器的充电协议与所述第二快充协议是否适配。
  5. 如权利要求4所述的快充协议转换电路，其特征在于，所述处理单元还设置第三通信引脚，所述第三通信引脚供所述充电输入接口和所述适配器通过第三快充协议进行数据交互；所述开关还与所述第三通信引脚电连接；
    当所述适配器的充电协议与所述第二快充协议不适配时，控制所述开关建立所述充电输入接口和所述第三通信引脚之间的电连接，并判断所述适配器的充电协议与所述第三快充协议是否适配。
  6. 如权利要求3或4所述的快充协议转换电路，其特征在于，所述开关为二选一开关。
  7. 如权利要求5所述的快充协议转换电路，其特征在于，所述开关为三选一开关。
  8. 如权利要求1所述的快充协议转换电路，其特征在于，所述第一快充协议和所述第二快充协议为高电压快充协议；所述目标快充协议为低电压高电流快充协议。
  9. 如权利要求8所述的快充协议转换电路，其特征在于，当所述适配器的充电协议与所述第一快充协议或者所述第二快充协议适配时，所述处理单元控制所述适配器将输出电压提高至符合其快充协议的充电电压。
  10. 如权利要求2所述的快充协议转换电路，其特征在于，所述快充协议转换电路还包括：
    采样单元，电连接于所述充电输出接口与所述处理单元之间，用于通过所述充电输出接口对所述移动终端的充电电流进行采样以得到采样电流；以及
    调节单元，电连接于所述转换单元与所述处理单元之间；
    所述处理单元还用于将所述采样电流与基准电流进行比较，并根据比较结果控制所述调节单元的输出，进而控制所述转换单元对输出的目标充电电流进行调节；其中，所述基准电流为所述移动终端当前所需的充电电流。
  11. 如权利要求1所述的快充协议转换电路，其特征在于，当所述适配器的充电协议与所述第一快充协议或者所述第二快充协议不适配时，所述处理单元控制所述适配器以及所述移动终端进入普通充电模式。
  12. 如权利要求1所述的快充协议转换电路，其特征在于，所述处理单元还用于识别所述移动终端的充电协议，并当识别出所述移动终端的充电协议与所述目标快充协议不适配时，控制所述适配器以及所述移动终端进入普通充电模式。
  13. 一种快充协议转换装置，其特征在于，包括：
    充电输入接口，用于与适配器相连；
    充电输出接口，用于与移动终端相连；以及
    如权利要求1至12中任意一项所述的快充协议转换电路；所述快充协议转换电路连接于所述充电输入接口和所述充电输出接口之间，并分别通过所述充电输入接口和所述充电输出接口与适配器和移动终端建立充电连接。
  14. 一种快充协议转换方法，应用于一快充协议转换装置中，所述快充协议转换装置包括识别单元，并用于分别与适配器和移动终端相连；所述协议转换装置定义有第一快充协议、第二快充协议及目标快充协议；其特征在于，所述快充协议转换方法，包括：
    控制所述识别单元识别所述适配器的充电协议是否为所述第一快充协议 或所述第二快充协议之一；
    当识别出所述适配器的充电协议为所述第一快充协议或者所述第二快充协议之一时，将所述适配器当前所支撑的快充协议转换为所述目标快充协议，并根据所述目标快充协议控制所述适配器和所述移动终端进入快速充电模式。
  15. 如权利要求14所述的快充协议转换方法，其特征在于，所述根据所述目标快充协议控制所述适配器和所述移动终端进入快速充电模式，包括：根据所述目标快充协议控制所述协议转换装置输出目标充电电压和目标充电电流，进而使得所述适配器和所述移动终端进入快速充电模式。
  16. 如权利要求14所述的快充协议转换方法，其特征在于，所述控制所述识别单元识别所述适配器的充电协议是否为所述第一快充协议或所述第二快充协议之一，具体包括：
    判断所述适配器的充电协议与所述第一快充协议是否适配；
    当判断所述适配器的充电协议与所述第一快充协议不适配时，判断所述适配器的充电协议与所述第二快充协议是否适配。
  17. 如权利要求16所述的快充协议转换方法，其特征在于，所述快充协议转换装置还定义第三快充协议；所述方法还包括：
    当判断所述适配器的充电协议与所述第二快充协议不适配时，判断所述适配器的充电协议与所述第三快充协议是否适配。
  18. 如权利要求14所述的快充协议转换方法，其特征在于，所述第一快充协议和所述第二快充协议为高电压快充协议；所述目标快充协议为低电压高电流快充协议。
  19. 如权利要求14所述的快充协议转换方法，其特征在于，所述方法还包括：
    当所述适配器的充电协议与所述第一快充协议或者所述第二快充协议不适配时，控制所述适配器以及所述移动终端进入普通充电模式。
  20. 如权利要求14所述的快充协议转换方法，其特征在于，所述方法在所述控制所述识别单元识别所述适配器的充电协议是否为所述第一快充协议或所述第二快充协议之一步骤之前，还包括：
    识别所述移动终端的充电协议，并当识别出所述移动终端的充电协议与所 述目标快充协议不适配时，控制所述适配器以及所述移动终端进入普通充电模式。
PCT/CN2018/124788 2018-12-28 2018-12-28 快充协议转换电路、装置及方法 Ceased WO2020133189A1 (zh)

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