WO2022012529A1 - 充电器、数据线和充电设备 - Google Patents

充电器、数据线和充电设备 Download PDF

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Publication number
WO2022012529A1
WO2022012529A1 PCT/CN2021/106005 CN2021106005W WO2022012529A1 WO 2022012529 A1 WO2022012529 A1 WO 2022012529A1 CN 2021106005 W CN2021106005 W CN 2021106005W WO 2022012529 A1 WO2022012529 A1 WO 2022012529A1
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WO
WIPO (PCT)
Prior art keywords
signal
data
pin
charging
charger
Prior art date
Application number
PCT/CN2021/106005
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English (en)
French (fr)
Inventor
谢亚兵
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to EP21841478.7A priority Critical patent/EP4164084A4/en
Publication of WO2022012529A1 publication Critical patent/WO2022012529A1/zh
Priority to US18/097,131 priority patent/US20230170708A1/en

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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
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling
    • G06F13/4072—Drivers or receivers
    • G06F13/4077—Precharging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus

Definitions

  • the present application belongs to the field of communication technologies, and in particular relates to a charger, a data cable and a charging device.
  • the Power Delivery (PD) protocol is usually used for fast charging, and the charger supporting the PD protocol charging needs to use the CC signal line for communication.
  • the charger supporting the PD protocol charging usually adopts the third standard (Type-C) interface, and with Type-C to Type-C data cable.
  • Type-C the third standard
  • Type-A or Standard-A the first standard
  • it communicates through the D+/D- signal line and cannot support PD protocol charging, so that the Type-A interface on the conventional data line cannot be used.
  • Support PD protocol charging for the data line using the first standard (Type-A or Standard-A) interface, it communicates through the D+/D- signal line and cannot support PD protocol charging, so that the Type-A interface on the conventional data line cannot be used. Support PD protocol charging.
  • the purpose of the embodiments of the present application is to provide a charger, a data cable, and a charging device, which can solve the problem that a data cable with a Type-A interface does not support PD protocol charging.
  • an embodiment of the present application provides a charger, including: a first Type-A interface, a charging module, and a first PD transceiver module;
  • the first Type-A interface includes a data pin, the first end of the charging module is connected to the data pin, and the second end of the charging module is connected to the first end of the first PD transceiver module , the second end of the first PD transceiver module is connected to the data pin;
  • the charger is connected to the data line
  • the data line is the first data line
  • the first PD transceiver module is in a working state
  • the charging module is based on the differential mode transmitted through the data pin.
  • the signal performs non-PD charging on the device to be charged, or the charging module performs PD charging on the device to be charged based on the common mode signal processed by the first PD transceiver module and transmitted through the data pin;
  • the charger is connected to the data line
  • the data line is the second data line
  • the first PD transceiver module is in a non-working state, and the charging module is based on the difference transmitted through the data pin.
  • the mode signal performs non-PD charging on the device to be charged
  • the data line is the first data line; when the first PD transceiver module does not receive the data through the data pin.
  • the data line when the first signal is transmitted by the pin, the data line is the second data line, and the first data line generates the first signal when connected to the device to be charged.
  • an embodiment of the present application provides a data cable, including: a second Type-A interface and a Type-C interface, the second Type-A interface and the Type-C interface are connected by a cable, so The second Type-A interface and the Type-C interface both include CC pins and data pins, and the CC pins and data pins in the second Type-A interface and the Type-C interface are one A corresponding connection;
  • the data line is provided with a second PD transceiver module, the first end of the second PD transceiver module is connected to the CC pin, and the second end of the second PD transceiver module is connected to the data pin ;
  • the second PD transceiver module In the case where the data cable is connected to a charger, if the charger is the first charger, the second PD transceiver module is in a working state, and the second PD transceiver module is used to transmit the data via the charger.
  • the common mode signal transmitted by the pin and the PD charging signal transmitted through the CC pin are mutually converted, so as to perform PD charging on the device to be charged, or, the data line and the first charger are based on the data lead and the first charger.
  • the differential signal transmitted by the pin performs non-PD charging on the device to be charged;
  • the data cable is connected to a charger
  • the charger is a second charger
  • the second PD transceiver module is in a non-working state, and the data cable and the second charger are based on the The differential signal transmitted by the data pin performs non-PD charging on the device to be charged
  • the charger when the second PD transceiver module receives the second signal transmitted through the data pin, the charger is the first charger; when the second PD transceiver module does not receive the data through the data pin
  • the charger is a second charger, the data line generates a first signal when connected to the device to be charged, and the first charger responds to the first signal The second signal is generated.
  • an embodiment of the present application provides a charging device, comprising: a charger and a data cable, the charger is the charger described in the first aspect, and the data cable is the data cable described in the second aspect , the data pins in the first Type-A interface are correspondingly connected with the data pins in the second Type-A interface.
  • a PD transceiver module is set in the charger, so as to realize the mutual conversion between the PD signal and the common mode signal transmitted on the data pin through the PD transceiver module, and at the same time, it does not interfere with the data pin.
  • the transmitted differential mode signal so that the data pins in the Type-A interface can be multiplexed to realize the transmission of PD signals, so that the charging device formed by the charger and the Type-A to Type-C data line can support the PD charging function.
  • FIG. 1 is a structural diagram of a charging device provided by an embodiment of the present application.
  • FIG. 2 is a structural diagram of a charger provided by an embodiment of the present application.
  • FIG. 3 is a structural diagram of a data line provided by an embodiment of the present application.
  • FIG. 4 is a circuit diagram of a PD transceiver module in a charging device provided by an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between “first”, “second”, etc.
  • the objects are usually of one type, and the number of objects is not limited.
  • the first object may be one or more than one.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • FIG. 1 is a structure of a charging device provided by an embodiment of the present application
  • FIG. 2 is a structural diagram of a charger provided by an embodiment of the present application, wherein the charger 1 includes: a first Type -A interface 10, the data line 2 is a Type-A to Type-C data line, and the second Type-A interface 20 of the data line 2 matches the first Type-A interface 10, and the Type-C interface of the data line 2 can Connect to the device to be charged.
  • the charger 1 includes: a first Type-A interface 10, a charging module 11 and a first PD transceiver module 12;
  • the first Type-A interface 10 includes data pins, and the first end of the charging module 11 is connected to the data leads The pins are connected, the second end of the charging module 11 is connected with the first end of the first PD transceiver module 12, and the second end of the first PD transceiver module 12 is connected with the data pins;
  • the charger 1 is connected to the data line 2
  • the first PD transceiver module 12 is in the working state, and the charging module 11 is based on the differential mode signal transmitted through the data pin. Perform non-PD charging on the device to be charged, or the charging module 11 performs PD charging on the device to be charged based on the common mode signal processed by the first PD transceiver module 12 and transmitted through the data pin;
  • the charger 1 is connected to the data line 2
  • the first PD transceiver module 12 is in a non-working state, and the charging module 11 is based on the differential mode transmitted through the data pin. Signal for non-PD charging of the device to be charged;
  • the data line 2 is the first data line; when the first PD transceiver module 12 does not receive the first signal transmitted through the data pin
  • the data line 2 is the second data line, and the first data line generates the first signal when connected to the device to be charged.
  • the above-mentioned data pins may be the data pins in the second-generation universal serial bus (USB 2.0): D+ pin (also referred to as: positive data pin) and D- pin (also referred to as: positive data pin) Call it: negative data pin).
  • the above-mentioned data pins can also be the data pins in the third-generation universal serial bus (USB 3.0): TX pins and RX pins, etc.
  • the data pins are represented as D+ pins and D- pins, and the types of the data pins are not limited herein.
  • the second end of the first PD transceiver module 12 may include a receiving end and a transmitting end. At this time, the first PD transceiver module 12 can obtain the communication signal on the data pin through the receiving end, and can also send the data lead through the transmitting end. The pin sends a common mode signal.
  • the second end of the first PD transceiver module 12 is connected to the data pin, specifically, the first end of the first PD transceiver module 12 is connected to its second end, so as to realize the first end receiving the data.
  • the PD signal is converted into a common mode signal and transmitted through the data pin of the second end, and the common mode signal obtained by the data pin of the second end is converted into a PD signal and then transmitted to the charging module 11 through the first end.
  • the second end of the first PD transceiver module 12 can be disconnected from the data pin.
  • the first end of the first PD transceiver module 12 can be disconnected from its second end, so as to avoid data transmission.
  • the signal on the pin is interfering.
  • the charging module 11 is at least configured with a communication protocol for PD charging, and the first end of the first PD transceiver module 12 is used to transmit communication information of the communication protocol.
  • a PD transceiver module is set in the charger, so as to realize the mutual conversion between the PD signal and the common mode signal transmitted on the data pin through the PD transceiver module, and at the same time, it does not interfere with the data pin.
  • the transmitted differential mode signal so that the data pins in the Type-A interface can be multiplexed to realize the transmission of PD signals, so that the charging device formed by the charger and the Type-A to Type-C data line can support the PD charging function.
  • the charging module 11 can also be configured with a non-PD charging communication protocol, for example: a communication protocol of a communication signal that can be transmitted through the data pin. At this time, the charging module 11 directly communicates with the data pin through the data pin. The device to be charged negotiates non-PD charging without switching through the first PD transceiver module 12 .
  • the above-mentioned charging module 11 may be configured with a preset communication protocol, and the communication signals of the preset communication protocol are transmitted through the D+ pins and the D- pins.
  • the charging parameters of the DP and DM fast charging can be determined through the communication signal negotiation of the preset communication protocol, so as to realize the DP and DM fast charging function of the equipment to be charged that is standard with the charging equipment.
  • the charging module 11 can also be configured with a general protocol, the communication signal of the general protocol can also be transmitted through the D+ pin and the D- pin, and the general protocol is transmitted through the D+ pin and the D- pin.
  • the communication signal can realize the DP and DM charging of the equipment to be charged that is not standard with the charging equipment.
  • the non-PD charging communication signal is a differential mode signal transmitted on the data pin, so that the communication signal transmitted on the data pin can be subtracted to eliminate the common mode signal and obtain the differential mode signal;
  • the communication signal transmitted on the data pin is added to eliminate the differential mode signal and obtain the common mode signal.
  • the differential mode signal transmitted on the data pin and the common mode signal have different code rates.
  • the differential mode signal transmitted on it The code rate can be 12MHz (megahertz) or 480MHz, and the code rate of the common mode signal transmitted on the D+ pin and the D- pin is not equal to 12MHz or 480MHz.
  • the Type-C interface end of the data cable connected to the charger or the device to be charged acquires the communication signal transmitted on the data pin, the common mode signal obtained by adding processing is performed, and based on the common mode signal, the PD signal.
  • the Type-C interface end of the data cable connected to the charger or the device to be charged can also convert the PD signal transmitted to the charger into a common-mode signal, and then transmit it to the first PD transceiver module 12 through the data pin, and the The first PD transceiver module 12 acquires the communication signal transmitted on the data pin and performs addition processing to obtain a common mode signal corresponding to the PD signal, thereby realizing PD communication between the charger and the device to be charged, and according to the PD Communication content, determine the PD charging parameters of the device to be charged, and realize the PD charging function.
  • the above-mentioned first data line may be a data line that matches with the charger 1, and the above-mentioned second data line may be a data line that does not match the charger 2.
  • the first data line may be as shown in the figure. 1 and the data line 2 shown in FIG. 3, the data line 2 includes: a second Type-A interface 20 and a Type-C interface 22, and the second Type-A interface 20 and the Type-C interface 22 are connected through a cable 23 Connection, the second Type-A interface 20 and Type-C interface 22 both include CC pins and data pins, and the CC pins and data pins in the second Type-A interface 20 and Type-C interface 22 are one by one. corresponding connection;
  • the data line 2 is provided with a second PD transceiver module 21, the first end of the second PD transceiver module 21 is connected to the CC pin, and the second end of the second PD transceiver module 21 is connected to the data pin. ;
  • the second PD transceiver module 21 is in the working state, and the second PD transceiver module 21 is used to transmit the data through the data pin.
  • the common mode signal and the PD charging signal transmitted through the CC pin are converted to each other to perform PD charging of the device to be charged, or, the data line 2 and the first charger are based on the differential transmission through the data pin. Signal for non-PD charging of the device to be charged;
  • the data line 2 is connected to the charger 1, if the charger 1 is the second charger, the second PD transceiver module 21 is in a non-working state, and the data line 2 and the second charger are based on the data
  • the differential signal transmitted by the pin performs non-PD charging on the device to be charged;
  • the charger 1 when the second PD transceiver module 21 receives the second signal transmitted through the data pin, the charger 1 is the first charger; when the second PD transceiver module 21 does not receive the second signal transmitted through the data pin When the second signal is received, the charger 1 is the second charger, the data line 2 generates the first signal when it is connected to the device to be charged, and the first charger generates the second signal in response to the first signal Signal.
  • the above-mentioned first charger may be the charger 1 shown in FIG. 1 and FIG. 2 .
  • the second PD transceiver module 21 has the same structure as the first PD transceiver module 21 , the difference is that the first end of the first PD transceiver module 21 is connected to the charging module 11 , and the second PD transceiver module 21 is connected to the charging module 11 .
  • the first end of 21 is connected to the CC pin, so that the second PD transceiver module 21 is used to realize mutual conversion between the PD signal transmitted on the CC pin and the common mode signal transmitted on the data pin.
  • the charger and the Type-A to Type-C data cable provided by the embodiments of the present application can perform PD charging on the to-be-charged device that supports PD charging without any change in the structure of the device to be charged.
  • the second PD transceiver module 21 determines, based on the electrical signal transmitted through the CC pin, that when the data line 2 is inserted into the device to be charged, a first signal is generated, and the first signal is transmitted through the data lead.
  • the pin is transmitted to the first PD transceiver module 12;
  • the first PD transceiver module 12 connects the first end of the first PD transceiver module 12 with the second end of the first PD transceiver module 12 in response to the first signal, and generates a second signal, and the second signal is processed by the first PD transceiver module 12 .
  • the data pins are transmitted to the second PD transceiver module 21 , and the second PD transceiver module 21 communicates the first end of the second PD transceiver module 21 with the second end of the second PD transceiver module 21 in response to the second signal.
  • the insertion of the data cable 2 into the device to be charged may be that the Type-C interface of the data cable 2 is inserted into the Type-C interface of the device to be charged that supports PD charging.
  • the second PD controller is configured to generate the first signal when there is a first preset electrical signal on the CC pin detected by the second common-mode input amplifier , and transmit the first signal to the positive data pin and the negative data pin through the second waveform adjustment circuit and the second common-mode output amplifier, wherein the data line is connected to the support PD charging When the device to be charged is connected, and the CC pin is grounded through the first resistor in the device to be charged that supports PD charging, the CC pin has the first preset electrical signal.
  • the above-mentioned first preset electrical signal may be a voltage value range. For example, when the detected voltage value of the CC pin is less than 3V (volts), it is determined that the data line is connected to the device to be charged that supports PD charging. , so that the charger 1 can be triggered to start the PD charging function; when the detected voltage value of the CC pin is greater than or equal to 3V, it is determined that the data line is connected to the device to be charged that does not support PD charging, so that charging can be triggered Device 1 starts the non-PD charging function.
  • the voltage value of the above-mentioned first preset electrical signal is less than 3V is only for illustration. In the specific implementation, it can be determined according to the voltage value on the CC trace and the resistance value of the first resistor, which is not described here. Specific restrictions.
  • the device to be charged that supports PD charging has a pull-down resistor (ie, the above-mentioned first resistor) connected to the CC pin, and the second PD transceiver module 21 is based on the electrical signal on the CC pin.
  • the value determines that when the CC pin is pulled down by the pull-down resistor, the first signal can be sent to the first PD transceiver module 12 via the data pin.
  • the charger 1 determines that it is connected to the device to be charged that supports PD charging through the data line, so that in response to the first signal, the charger 1 sends the data to the second PD through the data pin.
  • the transceiver module 21 sends a second signal to trigger PD charging negotiation with the device to be charged via the second signal.
  • the above-mentioned second signal may be a start of packet (Start of Packet, SOP) command of the output module data packet.
  • the above-mentioned second charger may be a charger that does not match the data line 2 , which may specifically be a charger that does not support PD charging, or a charger that does not have the first PD transceiver module 12 .
  • the second charger will not transmit the second signal through the data pin in response to the first signal.
  • the CC pin on the data line 2 can be connected to the VBUS pin through a pull-up resistor, and the CC pin can be connected to the VBUS pin through the pull-up resistor, which is the same as the CC pin in the Type-C interface in the prior art.
  • the feet have the same structure and have the same function, and will not be repeated here.
  • the data pins include positive data pins (D+ pins as shown in FIG. 4 ) and negative data pins (D- pins as shown in FIG. 4 )
  • the first PD transceiver module 12 includes: a first PD controller 121, a first waveform adjustment circuit 122, a first common mode output amplifier 123, a first filter circuit 124 and a first common mode input amplifier 125;
  • the first end of the first PD controller 121 is connected to the second end of the charging module 11 , the second end of the first PD controller 121 is connected to the first end of the first waveform adjustment circuit 122 , and the first end of the first waveform adjustment circuit 122 is connected.
  • the second end is connected to the first end of the first common mode output amplifier 123, the second end of the first common mode output amplifier 123 is connected to the D+ pin, and the third end of the first common mode output amplifier 123 is connected to the D- pin connection;
  • the third end of the first PD controller 121 is connected to the first end of the first filter circuit 124, the second end of the first filter circuit 124 is connected to the first end of the first common mode input amplifier 125, the first common mode input amplifier 125
  • the second end of the analog input amplifier 125 is connected to the D+ pin, and the third end of the first common mode input amplifier 125 is connected to the D- pin;
  • the first waveform adjustment circuit 122 is used to convert the square wave signal sent by the first PD controller 121 into a sine wave signal and reduce the amplitude of the sine wave signal, and the first common mode output amplifier 123 is used to convert the The reduced sine wave signal is converted into a common mode signal and common mode transmission is performed through the D+ pin and the D- pin;
  • the first common-mode input amplifier 125 is used to amplify the common-mode signal transmitted through the D+ pin and the D- pin, and the first filter circuit 124 is used to filter the amplified common-mode signal, and After being converted into a square wave signal, the signal is transmitted to the first PD controller 121 .
  • the first filter circuit 124 and the first common-mode input amplifier 125 are also used to obtain the first signal transmitted on the D+ pin and the D- pin, and transmit it to the first PD controller 121, the first PD
  • the controller 121 is also used to inform the control unit in the charging module 11 of the first signal, so as to respond to the first signal and generate a second signal, the second signal is processed by the first PD controller 121 and the first waveform
  • the adjustment circuit 122 and the first common-mode output amplifier 123 are transmitted to the D+ pin and the D- pin, and are acquired by the second PD transceiver module 21 in the common data line 2 .
  • the PD signal output by the first PD controller 121 is a square wave signal. After being adjusted to a sine wave signal by the first waveform adjustment circuit 122, it is then adjusted to a common mode signal by the first common mode output amplifier 123, so as to be a common mode signal at the D+ lead. common mode transmission on pin and D- pin.
  • the above-mentioned common mode signals may be the same two small sinusoidal signals.
  • the common-mode signal transmitted on the D+ pin and the D- pin is obtained through the first filter circuit 124 and the first common-mode input amplifier 125, and the common-mode signal is converted into a PD square wave signal after processing. Then, it is transmitted to the first PD controller 121 to provide an identifiable PD signal to the charging module 11 via the first PD controller 121 .
  • the PD signal sent by the charging module 11 is modulated by the first PD controller 121, and processed by the first waveform adjustment circuit 122 and the first common mode output amplifier 123 to form a signal that can be connected between the D+ pin and the D- lead.
  • the common mode signal transmitted on the pin is transmitted to the device to be charged through the D+ pin and the D- pin, thereby realizing PD charging between the charger and the device to be charged.
  • the first PD controller 121 is used for the positive data pin (D+ pin shown in FIG. 4 ) detected at the first common mode input amplifier 125 and the When the value of the first electrical signal on the negative data pin (D-pin as shown in FIG. 4 ) is smaller than the preset value, a PD charging signal is generated, and the PD charging signal is passed through the first waveform adjustment circuit 122 , the first common-mode output amplifier 123 is transmitted to the positive data pin and the negative data pin to perform PD charging on the device to be charged, wherein the preset value is transmitted with the D+ pin and the D- pin.
  • the value of the second electrical signal when not the PD charging signal does not overlap.
  • the above-mentioned first electrical signal value may be the voltage value of the communication signal transmitted on the D+ pin and the D- pin, and the above-mentioned preset value may be 500mV.
  • the above-mentioned preset value may be greater than the high threshold VHSOH of the USB 2.0 high-speed (High-speed, HS) signal, and less than the high threshold VOH of the low-speed (Full-speed/Low-speed, FS/LS) signal.
  • the first PD controller 121 can avoid the transmission time of the non-PD charging signal transmitted on the D+ pin and the D- pin, and transmit the PD communication signal, so as to avoid the relationship between the PD communication signal and the non-PD charging signal. mutual interference.
  • the first common mode input amplifier 125 is used to amplify the first communication signal transmitted through the positive data pin (as shown in FIG. 4 ) and the first communication signal transmitted through the negative data pin (as shown in FIG. 4 ).
  • D-pin shown in 4) transmits the second communication signal, and obtains a common mode signal based on the first communication signal and the second communication signal.
  • the first communication signal and the second communication signal may be common mode signals output by the second PD transceiver module 21 in the data line 2 connected to the charger 1 .
  • the second PD transceiver module 21 can convert the PD charging signal sent by the device to be charged via the CC pin into the above-mentioned first communication signal and the second communication signal, and transmit the first communication signal on the D+ pin For transmission, the second communication pin is transmitted on the D-pin.
  • the first common-mode input amplifier 125 can receive the first communication signal via the D+ pin and receive the second communication signal via the D- pin.
  • the above-mentioned first common-mode input amplifier 125 may include an adding circuit, and the above-mentioned obtaining of the common-mode signal based on the first communication signal and the second communication signal may be understood as performing an operation on the first communication signal and the second communication signal. Additive processing to combine common mode signals into one signal.
  • the two signals transmitted in the common mode on the D+ pin and the D- pin are converted into one signal through the first common mode input amplifier 125, so as to facilitate the first PD controller to adjust.
  • the first common-mode output amplifier 123 is configured to split the sinusoidal signal processed by the first waveform adjustment circuit 122 into a third communication signal and a fourth communication signal.
  • the third communication signal and the fourth communication signal is a common mode signal.
  • the third communication signal and the fourth communication signal may be the same sine wave signal, and the same sine wave signal is transmitted in common mode on the D+ pin and the D- pin.
  • the square wave signal output by the first PD controller 121 is first adjusted into a sine wave signal by the first waveform adjustment circuit 122 , and then the sine wave signal is split into a common mode by the first common mode output amplifier 123 signal for common mode transmission on the D+ and D- pins.
  • a PD transceiver module is also provided in the data line connected to the above-mentioned charger 1 or in the device to be charged connected to the data line, and the PD transceiver module is connected to the D+ pin, the D- pin and the CC pin. connected, so that when a communication signal including the third communication signal and the fourth communication signal of the above-mentioned common mode transmission is received through the D+ pin and the D- pin, the communication signal is subjected to processing such as addition, so as to retain the common mode signal (that is, the PD charging signal), and transmitted to the PD charging module in the device to be charged through the CC pin to realize the PD charging function.
  • the common mode signal that is, the PD charging signal
  • the charger 1 is connected to the first data line, if the priority of the non-PD charging is higher than the priority of the PD charging, the device to be charged is subjected to non-PD charging. Charging; if the non-PD charging fails, perform PD charging on the device to be charged;
  • the charger 1 In the case where the charger 1 is connected to the first data line, if the priority of the PD charging is greater than the priority of the non-PD charging, the device to be charged is charged with the PD; if the PD charging fails, the charging The charging device performs non-PD charging.
  • the above-mentioned non-PD charging may be a charging method based on a preset communication protocol, and the communication signal of the preset protocol may be transmitted through a data pin.
  • the above-mentioned preset communication protocol is also pre-configured in the standard equipment to be charged of the charger 1, so that charging parameters can be negotiated based on the preset communication protocol, and the equipment to be charged can be processed according to the negotiated charging parameters.
  • Standard charging is also pre-configured in the standard equipment to be charged of the charger 1, so that charging parameters can be negotiated based on the preset communication protocol, and the equipment to be charged can be processed according to the negotiated charging parameters. Standard charging.
  • the charging device when the charging device is connected to the non-standard to-be-charged device as shown in FIG. 1 , since the non-standard to-be-charged device is not configured with the above-mentioned preset communication protocol, only PD communication can be implemented.
  • the charging device can also be connected to the device to be charged that is not standard and does not support PD charging.
  • the general communication protocol of the signal negotiates charging parameters, and charges the non-standard to-be-charged device according to the negotiated charging parameters, or directly charges the to-be-charged device according to the default charging parameters.
  • the priorities of PD charging and non-PD charging are set in advance, so as to preferentially use a charging protocol with a high priority to charge the device to be charged.
  • the data pins include positive data pins and negative data pins
  • the second PD transceiver module 21 includes: a second PD controller, a second waveform adjustment circuit, and a second common mode output an amplifier, a second filter circuit and a second common mode input amplifier;
  • the first end of the second PD controller is connected to the CC pin, the second end of the second PD controller is connected to the first end of the second waveform adjustment circuit, and the second waveform adjustment circuit
  • the second end of the circuit is connected to the first end of the second common mode output amplifier, the second end of the second common mode output amplifier is connected to the positive data pin, and the second end of the second common mode output amplifier is connected to the positive data pin.
  • the third end is connected to the negative data pin;
  • the third end of the second PD controller is connected to the first end of the second filter circuit, and the second end of the second filter circuit is connected to the first end of the second filter circuit.
  • the first end of the two common mode input amplifiers is connected to the second end of the second common mode input amplifier is connected to the positive data pin, and the third end of the second common mode input amplifier is connected to the negative data pin pin connection;
  • the second PD controller is used to obtain the square wave signal transmitted through the CC pin, and the second waveform adjustment circuit is used to convert the square wave signal obtained by the second PD controller into a sine wave signal , and reduce the amplitude of the sine wave signal, the second common mode output amplifier is used to convert the reduced sine wave signal into a common mode signal and pass the positive data pin and the negative data pin. Carry out common mode transmission;
  • the second common-mode input amplifier is used to amplify the common-mode signal transmitted through the positive data pin and the negative data pin, and the second filter circuit is used to filter the amplified common-mode signal After processing, it is converted into a square wave signal and transmitted to the second PD controller, so as to be transmitted to the device to be charged through the CC pin.
  • the second PD transceiver module 21 in the above data line 2 may have the same structure and the same working principle as the first PD transceiver module 12 shown in FIG. 4 , and the difference is that the first PD transceiver module The first end of 21 is connected to the charging module 11, and the first end of the second PD transceiver module 21 is connected to the CC pin, so that the second PD transceiver module 21 is used to realize the PD signal and data transmission transmitted on the CC pin. The mutual conversion between common mode signals transmitted on the feet.
  • the working principle of the second PD transceiver module 21 will not be further described herein.
  • the second common-mode input amplifier is used to obtain the third communication signal transmitted through the positive data pin and the fourth communication signal transmitted through the negative data pin, and based on the The third communication signal and the fourth communication signal obtain a common mode signal.
  • the third communication signal and the fourth communication signal may be common mode signals output by the first PD transceiver module 12 in the charger 1 connected to the data line 2 .
  • the first PD transceiver module 12 can convert the PD charging signal output by the charging module into the third communication signal and the fourth communication signal, and transmit the third communication signal on the D+ pin, and the A fourth communication pin transmits on the D-pin.
  • the second common-mode input amplifier can receive the third communication signal via the D+ pin and receive the fourth communication signal via the D- pin.
  • the structure and working principle of the second common-mode input amplifier can refer to the structure and working principle of the first common-mode input amplifier, and the second common-mode input amplifier can play the same role as the first common-mode input amplifier, It is not repeated here.
  • the second common-mode output amplifier is configured to split the sinusoidal signal processed by the second waveform adjustment circuit into a first communication signal and a second communication signal, the first The communication signal and the second communication signal are common mode signals.
  • the working principle of the second common-mode output amplifier can refer to the working principle of the first common-mode output amplifier, and the second common-mode output amplifier can play the same role as the first common-mode output amplifier, which is not repeated here. Repeat.
  • modules, units, sub-modules, sub-units, etc. can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, for in other electronic units or combinations thereof that perform the functions described herein.
  • ASIC 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
  • the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of this application.
  • a storage medium such as ROM/RAM, magnetic disk, CD-ROM

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Abstract

本申请公开了一种充电器、数据线和充电设备。其中，充电器，包括：第一Type-A接口、充电模块和第一PD收发模块；第一Type-A接口包括数据引脚，充电模块的第一端与数据引脚连接，充电模块的第二端与第一PD收发模块的第一端连接，第一PD收发模块的第二端与数据引脚连接；在充电器与匹配的第一数据线连接的情况下，第一PD收发模块处于工作状态，充电模块基于经数据引脚传输的差模信号对待充电设备进行非PD充电，或者，充电模块基于经第一PD收发模块处理并经数据引脚传输的共模信号对待充电设备进行PD充电；第一数据线在与充电器连接时经数据引脚传输的第一信号时至充电器。

Description

充电器、数据线和充电设备
相关申请的交叉引用
本申请主张在2020年7月14日在中国提交的中国专利申请号No.202010674298.X的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域，具体涉及一种充电器、数据线和充电设备。
背景技术
随着科技的发展，快速充电的应用越来越广泛。
在相关技术中，通常采用电力输送(Power Delivery，PD)协议进行快速充电，为支持PD协议充电的充电器需要采用CC信号线进行通信，该支持PD协议充电的充电器通常采用第三标准(Type-C)接口，并搭配Type-C to Type-C的数据线。对于采用第一标准(Type-A或者Standard-A)接口的数据线，其通过D+/D-信号线进行通信，不能够支持PD协议充电，从而使得常规的数据线上的Type-A接口不支持PD协议充电。
发明内容
本申请实施例的目的是提供一种充电器、数据线和充电设备，能够解决具有Type-A接口的数据线不支持PD协议充电的问题。
为了解决上述技术问题，本申请是这样实现的：
第一方面，本申请实施例提供了一种充电器，包括：第一Type-A接口、充电模块和第一PD收发模块；
所述第一Type-A接口包括数据引脚，所述充电模块的第一端与所述数据引脚连接，所述充电模块的第二端与所述第一PD收发模块的第一端连接，所述第一PD收发模块的第二端与所述数据引脚连接；
在所述充电器与数据线连接的情况下，若所述数据线为第一数据线，所述第一PD收发模块处于工作状态，所述充电模块基于经所述数据引脚传输 的差模信号对待充电设备进行非PD充电，或者，所述充电模块基于经所述第一PD收发模块处理并经所述数据引脚传输的共模信号对待充电设备进行PD充电；
在所述充电器与数据线连接的情况下，若所述数据线为第二数据线，所述第一PD收发模块处于非工作状态，所述充电模块基于经所述数据引脚传输的差模信号对待充电设备进行非PD充电；
其中，在所述第一PD收发模块接收到经所述数据引脚传输的第一信号时，所述数据线为第一数据线；在所述第一PD收发模块未接收到经所述数据引脚传输的所述第一信号时，所述数据线为第二数据线，所述第一数据线在连接待充电设备时生成所述第一信号。
第二方面，本申请实施例提供了一种数据线，包括：第二Type-A接口和Type-C接口，所述第二Type-A接口和所述Type-C接口通过线缆连接，所述第二Type-A接口和所述Type-C接口均包括CC引脚、数据引脚，且所述第二Type-A接口和所述Type-C接口中的CC引脚、数据引脚一一对应连接；
所述数据线中设置有第二PD收发模块，所述第二PD收发模块的第一端与所述CC引脚连接，所述第二PD收发模块的第二端与所述数据引脚连接；
在所述数据线与充电器连接的情况下，若所述充电器为第一充电器，所述第二PD收发模块处于工作状态下，所述第二PD收发模块用于将经所述数据引脚传输的共模信号与经所述CC引脚传输的PD充电信号进行相互转换，以对待充电设备进行PD充电，或者，所述数据线和所述第一充电器基于经所述数据引脚传输的差分信号对待充电设备进行非PD充电；
在所述数据线与充电器连接的情况下，若所述充电器为第二充电器，所述第二PD收发模块处于非工作状态下，所述数据线和所述第二充电器基于经所述数据引脚传输的差分信号对待充电设备进行非PD充电；
其中，在所述第二PD收发模块接收到经所述数据引脚传输的第二信号时，所述充电器为第一充电器；在所述第二PD收发模块未接收到经所述数据引脚传输的所述第二信号时，所述充电器为第二充电器，所述数据线在与待充电设备连接时生成第一信号，所述第一充电器响应于所述第一信号生成所述第二信号。
第三方面，本申请实施例提供了一种充电设备，包括：充电器和数据线，所述充电器为第一方面所述的充电器，所述数据线为第二方面所述的数据线，所述第一Type-A接口中的数据引脚与所述第二Type-A接口中的数据引脚对应连接。
在本申请实施例中，在充电器内设置PD收发模块，以通过该PD收发模块实现PD信号与数据引脚上传输的共模信号之间的相互转换，同时，并不干扰数据引脚上传输的差模信号，从而可以复用Type-A接口中的数据引脚实现PD信号的传输，从而使充电器与Type-A to Type-C数据线构成的充电设备能够支持PD充电功能。
附图说明
图1是本申请实施例提供的充电设备的结构图；
图2是本申请实施例提供的充电器的结构图；
图3是本申请实施例提供的数据线的结构图；
图4是本申请实施例提供的充电设备中PD收发模块的电路图。
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作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。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的 充电器、数据线和充电设备进行详细地说明。
请同时参阅图1和图2，其中，图1是本申请实施例提供的充电设备的结构；图2是本申请实施例提供的充电器的结构图，其中，充电器1包括：第一Type-A接口10，数据线2为Type-A to Type-C数据线，且数据线2的第二Type-A接口20与第一Type-A接口10匹配，数据线2的Type-C接口能够与待充电设备连接。
其中，充电器1包括：第一Type-A接口10、充电模块11和第一PD收发模块12；第一Type-A接口10包括数据引脚，充电模块11的第一端与所述数据引脚连接，充电模11的第二端与第一PD收发模块12的第一端连接，第一PD收发模块12的第二端与数据引脚连接；
在充电器1与数据线2连接的情况下，若所述数据线2为第一数据线，第一PD收发模块12处于工作状态，充电模块11基于经所述数据引脚传输的差模信号对待充电设备进行非PD充电，或者，充电模块11基于经第一PD收发模块12处理并经所述数据引脚传输的共模信号对待充电设备进行PD充电；
在充电器1与数据线2连接的情况下，若数据线2为第二数据线，第一PD收发模块12处于非工作状态，所述充电模块11基于经所述数据引脚传输的差模信号对待充电设备进行非PD充电；
其中，在第一PD收发模块12接收到经所述数据引脚传输的第一信号时，数据线2为第一数据线；在第一PD收发模块12未接收到经所述数据引脚传输的所述第一信号时，数据线2为第二数据线，所述第一数据线在连接待充电设备时生成所述第一信号。
在具体实施中，上述数据引脚可以是第二代通用串口总线(USB 2.0)中的数据引脚：D+引脚(也可以称之为：正数据引脚)和D-引脚(也可以称之为：负数据引脚)。当然，在具体实施中，上述数据引脚还可以是第三代通用串口总线(USB 3.0)中的数据引脚：TX引脚和RX引脚等，为便于理解，如图1至图4所示实施例中将数据引脚表示为D+引脚和D-引脚，在此并不对数据引脚的种类作限定。
另外，第一PD收发模块12的第二端可以包括接收端和发送端，此时， 第一PD收发模块12能够经接收端获取数据引脚上的通信信号，也能够经发送端向数据引脚发送共模信号。
另外，第一PD收发模块12处于工作状态时，其第二端与数据引脚连通，具体可以是第一PD收发模块12的第一端与其第二端连通，以实现将第一端接收的PD信号转化为共模信号后经第二端的数据引脚传输，并实现将第二端的数据引脚获取的共模信号转化为PD信号后经第一端传输至充电模块11。
另外，第一PD收发模块12处于非工作状态时，其第二端与数据引脚可以断开，具体可以是第一PD收发模块12的第一端与其第二端断开，从而避免对数据引脚上的信号产生干扰。
在具体实施中，充电模块11中至少配置有PD充电的通信协议，上述第一PD收发模块12的第一端用于传输该通信协议的通信信息。
在本申请实施例中，在充电器内设置PD收发模块，以通过该PD收发模块实现PD信号与数据引脚上传输的共模信号之间的相互转换，同时，并不干扰数据引脚上传输的差模信号，从而可以复用Type-A接口中的数据引脚实现PD信号的传输，从而使充电器与Type-A to Type-C数据线构成的充电设备能够支持PD充电功能。
需要说明的是，在具体实施中，充电模块11中还可以配置非PD充电的通信协议，例如：可经数据引脚传输的通信信号的通信协议，此时充电模块11直接通过数据引脚与待充电设备进行非PD充电的协商，而无需通过第一PD收发模块12转换。具体的，在数据引脚包括D+引脚和D-引脚的情况下，上述充电模块11中可以配置预设通信协议，该预设通信协议的通信信号经D+引脚和D-引脚传输，通过预设通信协议的通信信号协商可以确定DP、DM快速充电的充电参数，从而实现对充电设备标配的待充电设备的DP、DM快速充电功能。当然，在具体实施中，充电模块11中还可以配置通用协议，该通用协议的通信信号也可以经D+引脚和D-引脚传输，该通用协议的经D+引脚和D-引脚传输通信信号，能够实现对充电设备非标配的待充电设备的DP、DM充电，其原理与现有技术中的DP、DM充电过程相同，在此不再赘述。
本实施方式中，非PD充电的通信信号为数据引脚上传输的差模信号，这样，可以将数据引脚上传输的通信信号进行相减处理，以消除共模信号， 得到差模信号；将数据引脚上传输的通信信号进行相加处理，以消除差模信号，得到共模信号。
在应用中，数据引脚上传输的差模信号与共模信号具有不同的码率，具体的，在数据引脚为D+引脚和D-引脚的情况下，其上传输的差模信号的码率可以是12MHz(兆赫兹)或者480MHz，则D+引脚和D-引脚上传输的共模信号的码率不等于12MHz或者480MHz。
另外，与充电器连接的数据线的Type-C接口端或者待充电设备在获取到数据引脚上传输的通信信号时，进行相加处理以得到的共模信号，并基于该共模信号得到PD信号。
另外，与充电器连接的数据线的Type-C接口端或者待充电设备还可以将向充电器传输的PD信号转化为共模信号后，经数据引脚传输至第一PD收发模块12，由该第一PD收发模块12获取数据引脚上传输的通信信号并进行相加处理，以得到与PD信号对应的共模信号，从而实现充电器与待充电设备之间的PD通信，并根据PD通信内容，确定对待充电设备的PD充电参数，实现PD充电功能。
在具体实施中，上述第一数据线可以是与充电器1匹配的数据线，上述第二数据线可以是与充电器2不匹配的数据线，具体的，第一数据线具体可以是如图1和图3中所示的数据线2，该数据线2中包括：第二Type-A接口20和Type-C接口22，第二Type-A接口20和Type-C接口22通过线缆23连接，第二Type-A接口20和Type-C接口22均包括CC引脚、数据引脚，且第二Type-A接口20和Type-C接口22中的CC引脚、数据引脚一一对应连接；
所述数据线2中设置有第二PD收发模块21，第二PD收发模块21的第一端与所述CC引脚连接，第二PD收发模块21的第二端与所述数据引脚连接；
在数据线2与充电器1连接的情况下，若充电器1为第一充电器，第二PD收发模块21处于工作状态下，第二PD收发模块21用于将经所述数据引脚传输的共模信号与经所述CC引脚传输的PD充电信号进行相互转换，以对待充电设备进行PD充电，或者，数据线2和所述第一充电器基于经所述数 据引脚传输的差分信号对待充电设备进行非PD充电；
在数据线2与充电器1连接的情况下，若充电器1为第二充电器，第二PD收发模块21处于非工作状态下，数据线2和所述第二充电器基于经所述数据引脚传输的差分信号对待充电设备进行非PD充电；
其中，在第二PD收发模块21接收到经所述数据引脚传输的第二信号时，充电器1为第一充电器；在第二PD收发模块21未接收到经所述数据引脚传输的所述第二信号时，充电器1为第二充电器，数据线2在与待充电设备连接时生成第一信号，所述第一充电器响应于所述第一信号生成所述第二信号。
其中，上述第一充电器可以是如图1和图2中所示的充电器1。
本实施方式中，第二PD收发模块21与第一PD收发模块21具有相同的结构，不同之处在于：第一PD收发模块21的第一端与充电模块11连接，而第二PD收发模块21的第一端与CC引脚连接，从而使第二PD收发模块21用于实现CC引脚上传输的PD信号与数据引脚上传输的共模信号之间的相互转换。
这样，无需对待充电设备的结构作出任何改变，便能够使本申请实施例提供的充电器和Type-A to Type-C数据线能够对支持PD充电的待充电设备进行PD充电。
作为一种可选的实施方式，第二PD收发模块21基于经所述CC引脚传输的电信号确定数据线2插入待充电设备时，生成第一信号，且所述第一信号经数据引脚传输至第一PD收发模块12；
第一PD收发模块12响应于所述第一信号连通所述第一PD收发模块12的第一端与第一PD收发模块12的第二端，并生成第二信号，所述第二信号经数据引脚传输至第二PD收发模块21，第二PD收发模块21响应于第二信号连通第二PD收发模块21的第一端与第二PD收发模块21的第二端。
其中，上述数据线2插入待充电设备可以是数据线2的Type-C接口插入支持PD充电的待充电设备的Type-C接口。
作为一种可选的实施方式，所述第二PD控制器用于在所述第二共模输入放大器检测到的所述CC引脚上具有第一预设电信号时，生成所述第一信号，并将所述第一信号经所述第二波形调整电路、第二共模输出放大器传输 至所述正数据引脚和所述负数据引脚，其中，在所述数据线与支持PD充电的待充电设备连接时，所述CC引脚通过所述支持PD充电的待充电设备内的第一电阻接地时，所述CC引脚上具有所述第一预设电信号。
其中，上述第一预设电信号可以是电压值范围，例如：在检测到的所述CC引脚的电压值小于3V(伏特)的情况下，确定数据线与支持PD充电的待充电设备连接，从而可以触发充电器1启动PD充电功能；在检测到的所述CC引脚的电压值大于或者等于3V的情况下，确定数据线与不支持PD充电的待充电设备连接，从而可以触发充电器1启动非PD充电功能。需要说明的是，上述第一预设电信号为小于3V的电压值仅作为举例说明，在具体实施中，可以根据CC走线上的电压值以及第一电阻的电阻值等确定，在此不作具体限定。
需要说明的是，在实际应用中，支持PD充电的待充电设备中具有与CC引脚连接的下拉电阻(即上述第一电阻)，则第二PD收发模块21基于CC引脚上的电信号值确定该CC引脚经下拉电阻下拉时，可以经数据引脚向第一PD收发模块12发送第一信号。当第一PD收发模块12接收到所述第一信号时，该充电器1确定通过数据线与支持PD充电的待充电设备连接，从而响应于该第一信号，经数据引脚向第二PD收发模块21发送第二信号，以经第二信号触发与待充电设备的PD充电协商。在具体实施中，上述第二信号可以是输出模块数据包的起点(Start of Packet，SOP)命令。
另外，上述第二充电器可以是与数据线2不匹配的充电器，其具体可以是不支持PD充电的充电器，或者不具有第一PD收发模块12的充电器等，在数据线2与第二充电器连接时，该第二充电器不会响应第一信号而经数据引脚传输第二信号。此时，数据线2上的CC引脚可以经上拉电阻连接VBUS引脚，该CC引脚可以经上拉电阻连接VBUS引脚的结构，与现有技术中的Type-C接口中CC引脚的结构相同，且具有相同的作用，在此不再赘述。
作为一种可选的实施方式，如图4所示，数据引脚包括正数据引脚(如图4中所示D+引脚)和负数据引脚(如图4中所示D-引脚)，第一PD收发模块12包括：第一PD控制器121、第一波形调整电路122、第一共模输出放大器123、第一滤波电路124和第一共模输入放大器125；
第一PD控制器121的第一端与充电模块11的第二端连接，第一PD控制器121的第二端与第一波形调整电路122的第一端连接，第一波形调整电路122的第二端与第一共模输出放大器123的第一端连接，第一共模输出放大器123的第二端与D+引脚连接，第一共模输出放大器123的第三端与D-引脚连接；第一PD控制器121的第三端与第一滤波电路124的第一端连接，第一滤波电路124的第二端与第一共模输入放大器125的第一端连接，第一共模输入放大器125的第二端与D+引脚连接，第一共模输入放大器125的第三端与D-引脚连接；
其中，第一波形调整电路122用于将第一PD控制器121发出的方波信号转换为弦波信号，并缩小所述弦波信号的振幅，第一共模输出放大器123用于将所述缩小后的弦波信号转换为共模信号并经所述D+引脚和所述D-引脚进行共模传输；
第一共模输入放大器125用于放大经所述D+引脚和所述D-引脚传输的共模信号，第一滤波电路124用于对所述放大后的共模信号进行滤波处理，并转换为方波信号后传输至第一PD控制器121。
在具体实施中，第一滤波电路124和第一共模输入放大器125还用于获取D+引脚和D-引脚上传输的第一信号，并传输至第一PD控制器121，第一PD控制器121还用于将该第一信号告知充电模块11中的控制单元，以对该第一信号进行响应，并生成第二信号，该第二信号经第一PD控制器121、第一波形调整电路122和第一共模输出放大器123传输至D+引脚和D-引脚上，以共数据线2中的第二PD收发模块21获取。
另外，第一PD控制器121输出的PD信号为方波信号，经第一波形调整电路122调整为弦波信号后，再经第一共模输出放大器123调整为共模信号，以在D+引脚和D-引脚上共模传输。在具体实施中，上述共模信号可以是相同的两个弦波小信号。
本实施方式中，经第一滤波电路124和第一共模输入放大器125获取D+引脚和D-引脚上传输的共模信号，并经过处理后将该共模信号转化为PD方波信号后传输至第一PD控制器121，以经第一PD控制器121向充电模块11提供可识别的PD信号。另外，还经第一PD控制器121对充电模块11发出 的PD信号进行调制，并经过第一波形调整电路122和第一共模输出放大器123处理后，形成可在D+引脚和D-引脚上传输的共模信号，以经D+引脚和D-引脚传输至待充电设备，从而实现充电器与待充电设备之间的PD充电。
作为一种可选的实施方式，如图4所示，第一PD控制器121用于在第一共模输入放大器125检测到的正数据引脚(如图4中所示D+引脚)和负数据引脚(如图4中所示D-引脚)上的第一电信号值小于预设值的情况下，生成PD充电信号，并将所述PD充电信号经第一波形调整电路122、第一共模输出放大器123传输至所述正数据引脚和所述负数据引脚，以对待充电设备进行PD充电，其中，所述预设值与D+引脚和D-引脚在传输非PD充电信号时的第二电信号值不重叠。
在具体实施中，上述第一电信号值可以是D+引脚和D-引脚上传输的通信信号的电压值，且上述预设值可以是500mV。
具体的，上述预设值可以大于USB 2.0的高速(High-speed，HS)信号的高阈值VHSOH，且小于低速(Full-speed/Low-speed，FS/LS)信号的高阈值VOH。
本实施方式中，第一PD控制器121可以避开D+引脚和D-引脚上传输的非PD充电信号的传输时间，传输PD通信信号，从而可以避免PD通信信号与非PD充电信号之间的相互干扰。
作为一种可选的实施方式，第一共模输入放大器125用于放大经正数据引脚(如图4中所示D+引脚)传输的第一通信信号和经负数据引脚(如图4中所示D-引脚)传输的第二通信信号，并基于所述第一通信信号和所述第二通信信号得到共模信号。
在具体实施中，上述第一通信信号和第二通信信号可以是与所述充电器1连接的数据线2内的第二PD收发模块21输出的共模信号。具体的，该第二PD收发模块21能够将待充电设备经CC引脚发送的PD充电信号转化为上述第一通信信号和第二通信信号，并将所述第一通信信号在D+引脚上传输，将所述第二通信引脚在所述D-引脚上传输。这样，第一共模输入放大器125能够经D+引脚接收第一通信信号，并经D-引脚接收第二通信信号。
另外，上述第一共模输入放大器125可以包括加法电路，且上述基于所 述第一通信信号和所述第二通信信号得到共模信号可以理解为，对第一通信信号和第二通信信号进行相加处理，以将共模信号合成为一个信号。
本实施方式中，经第一共模输入放大器125将D+引脚和D-引脚上共模传输的两个信号转化为一个信号，以便于第一PD控制器进行调解。
作为一种可选的实施方式，第一共模输出放大器123用于将第一波形调整电路122处理后的弦波信号拆分为第三通信信号和第四通信信号，所述第三通信信号和所述第四通信信号为共模信号。
在具体实施中，上述第三通信信号和所述第四通信信号可以是相同的弦波信号，且该相同的弦波信号在D+引脚和D-引脚上共模传输。
本实施方式中，先经第一波形调整电路122将第一PD控制器121输出的方波信号调整为弦波信号，然后由第一共模输出放大器123将该弦波信号拆分为共模信号，以便于在D+引脚和D-引脚上共模传输。
需要说明的是，与上述充电器1连接的数据线内或者与数据线连接的待充电设备内也设置有PD收发模块，且该PD收发模块与D+引脚、D-引脚以及CC引脚连接，以在经D+引脚和D-引脚接收到包括上述共模传输的第三通信信号和第四通信信号的通信信号时，对该通信信号进行相加等处理，以保留共模信号(即PD充电信号)，并经CC引脚传输至待充电设备内的PD充电模块，以实现PD充电功能。
作为一种可选的实施方式，在充电器1与所述第一数据线连接的情况下，若所述非PD充电的优先级大于所述PD充电的优先级，则对待充电设备进行非PD充电；若所述非PD充电失败，对待充电设备进行PD充电；
在充电器1与所述第一数据线连接的情况下，若所述PD充电的优先级大于所述非PD充电的优先级，则对待充电设备进行PD充电；若所述PD充电失败，对待充电设备进行非PD充电。
在具体实施中，上述非PD充电可以是基于预设通信协议的充电方式，该预设协议的通信信号可以经数据引脚传输。
在应用中，充电器1的标配待充电设备中也预先配置有上述预设通信协议，从而能够基于该预设通信协议协商充电参数，并按照协商确定的充电参数对标配待充电设备进行标配充电。
另外，在如图1所示充电设备与非标配的待充电设备连接时，由于非标配的待充电设备中未配置有上述预设通信协议，从而仅能够实现PD通信。
当然，如图1所示充电设备还可以与非标配且不支持PD充电的待充电设备连接，此时可以按照通用充电协议(例如：能够在D+引脚和D-引脚上传输的通信信号的通用通信协议)协商充电参数，并按照协商确定的充电参数对非标配待充电设备进行充电，或者，还可以直接按照默认充电参数对待充电设备进行充电。
本实施方式中，预先设置PD充电和非PD充电的优先级，以实现优先采用优先级别高的充电协议对待充电设备进行充电。
作为一种可选的实施方式，所述数据引脚包括正数据引脚和负数据引脚，第二PD收发模块21包括：第二PD控制器、第二波形调整电路、第二共模输出放大器、第二滤波电路和第二共模输入放大器；
所述第二PD控制器的第一端与所述CC引脚连接，所述第二PD控制器的第二端与所述第二波形调整电路的第一端连接，所述第二波形调整电路的第二端与所述第二共模输出放大器的第一端连接，所述第二共模输出放大器的第二端与所述正数据引脚连接，所述第二共模输出放大器的第三端与所述负数据引脚连接；所述第二PD控制器的第三端与所述第二滤波电路的第一端连接，所述第二滤波电路的第二端与所述第二共模输入放大器的第一端连接，所述第二共模输入放大器的第二端与所述正数据引脚连接，所述第二共模输入放大器的第三端与所述负数据引脚连接；
其中，所述第二PD控制器用于获取经所述CC引脚传输的方波信号，所述第二波形调整电路用于将所述第二PD控制器获取的方波信号转换为弦波信号，并缩小所述弦波信号的振幅，所述第二共模输出放大器用于将所述缩小后的弦波信号转换为共模信号并经所述正数据引脚和所述负数据引脚进行共模传输；
所述第二共模输入放大器用于放大经所述正数据引脚和所述负数据引脚传输的共模信号，所述第二滤波电路用于对所述放大后的共模信号进行滤波处理，并转换为方波信号后传输至所述第二PD控制器，以经所述CC引脚传输至待充电设备。
需要说明的是，上述数据线2中的第二PD收发模块21可以与如图4所示第一PD收发模块12具有相同的结构，且工作原理相同，不同之处在于：第一PD收发模块21的第一端与充电模块11连接，而第二PD收发模块21的第一端与CC引脚连接，从而使第二PD收发模块21用于实现CC引脚上传输的PD信号与数据引脚上传输的共模信号之间的相互转换。在此不再对第二PD收发模块21的工作原理作进一步赘述。
作为一种可选的实施方式，所述第二共模输入放大器用于获取经所述正数据引脚传输的第三通信信号和经所述负数据引脚传输的第四通信信号，并基于所述第三通信信号和所述第四通信信号得到共模信号。
在具体实施中，上述第三通信信号和第四通信信号可以是与所述数据线2连接的充电器1内的第一PD收发模块12输出的共模信号。具体的，该第一PD收发模块12能够将充电模块输出的PD充电信号转化为上述第三通信信号和第四通信信号，并将所述第三通信信号在D+引脚上传输，将所述第四通信引脚在所述D-引脚上传输。这样，第二共模输入放大器能够经D+引脚接收第三通信信号，并经D-引脚接收第四通信信号。
其中，上述第二共模输入放大器的结构和工作原理具体可以参照第一共模输入放大器的结构和工作原理，且上述第二共模输入放大器能够发挥与第一共模输入放大器相同的作用，在此不再赘述。
作为一种可选的实施方式，所述第二共模输出放大器用于将所述第二波形调整电路处理后的弦波信号拆分为第一通信信号和第二通信信号，所述第一通信信号和所述第二通信信号为共模信号。
其中，上述第二共模输出放大器的工作原理具体可以参照第一共模输出放大器的工作原理，且上述第二共模输出放大器能够发挥与第一共模输出放大器相同的作用，在此不再赘述。
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。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和电子设备的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (13)

  1. 一种充电器，包括：第一Type-A接口、充电模块和第一PD收发模块；
    所述第一Type-A接口包括数据引脚，所述充电模块的第一端与所述数据引脚连接，所述充电模块的第二端与所述第一PD收发模块的第一端连接，所述第一PD收发模块的第二端与所述数据引脚连接；
    在所述充电器与数据线连接的情况下，若所述数据线为第一数据线，所述第一PD收发模块处于工作状态，所述充电模块基于经所述数据引脚传输的差模信号对待充电设备进行非PD充电，或者，所述充电模块基于经所述第一PD收发模块处理并经所述数据引脚传输的共模信号对待充电设备进行PD充电；
    在所述充电器与数据线连接的情况下，若所述数据线为第二数据线，所述第一PD收发模块处于非工作状态，所述充电模块基于经所述数据引脚传输的差模信号对待充电设备进行非PD充电；
    其中，在所述第一PD收发模块接收到经所述数据引脚传输的第一信号时，所述数据线为第一数据线；在所述第一PD收发模块未接收到经所述数据引脚传输的所述第一信号时，所述数据线为第二数据线，所述第一数据线在连接待充电设备时生成所述第一信号。
  2. 根据权利要求1所述的充电器，其中，所述第一PD收发模块包括：第一PD控制器、第一波形调整电路、第一共模输出放大器、第一滤波电路和第一共模输入放大器；
    所述第一PD控制器与所述充电模块、所述第一波形调整电路以及所述第一滤波电路连接，所述第一波形调整电路还通过所述第一共模输出放大器连接至所述数据引脚，所述第一滤波电路还通过所述第一共模输入放大器连接至所述数据引脚；
    其中，所述第一波形调整电路用于将所述第一PD控制器发出的方波信号转换为弦波信号，并缩小所述弦波信号的振幅，所述第一共模输出放大器用于将所述缩小后的弦波信号转换为共模信号并经所述数据引脚进行共模传输；
    所述第一共模输入放大器用于放大经所述数据引脚传输的共模信号，所述第一滤波电路用于对所述放大后的共模信号进行滤波处理，并转换为方波信号后传输至所述第一PD控制器。
  3. 根据权利要求2所述的充电器，其中，所述第一PD控制器用于在所述第一共模输入放大器检测到的所述数据引脚上的第一电信号值小于预设值的情况下，生成PD充电信号，并将所述PD充电信号经所述第一波形调整电路、所述第一共模输出放大器传输至所述数据引脚，以对待充电设备进行PD充电，其中，所述预设值与所述数据引脚在传输非PD充电信号时的第二电信号值不重叠。
  4. 根据权利要求2所述的充电器，其中，所述数据引脚包括正数据引脚和负数据引脚，所述第一共模输入放大器用于放大经所述正数据引脚传输的第一通信信号和经所述负数据引脚传输的第二通信信号，并对所述第一通信信号和所述第二通信信号进行相加处理以得到共模信号。
  5. 根据权利要求2所述的充电器，其中，所述第一共模输出放大器用于将所述第一波形调整电路处理后的弦波信号拆分为第三通信信号和第四通信信号，所述第三通信信号和所述第四通信信号为共模信号。
  6. 根据权利要求1所述的充电器，其中，
    在所述充电器与所述第一数据线连接的情况下，若所述非PD充电的优先级大于所述PD充电的优先级，则对待充电设备进行非PD充电；若所述非PD充电失败，对待充电设备进行PD充电；
    在所述充电器与所述第一数据线连接的情况下，若所述PD充电的优先级大于所述非PD充电的优先级，则对待充电设备进行PD充电；若所述PD充电失败，对待充电设备进行非PD充电。
  7. 一种数据线，包括：第二Type-A接口和Type-C接口，所述第二Type-A接口和所述Type-C接口通过线缆连接，其中，所述第二Type-A接口和所述Type-C接口均包括CC引脚、数据引脚，且所述第二Type-A接口和所述Type-C接口中的CC引脚、数据引脚一一对应连接；
    所述数据线中设置有第二PD收发模块，所述第二PD收发模块的第一端与所述CC引脚连接，所述第二PD收发模块的第二端与所述数据引脚连接；
    在所述数据线与充电器连接的情况下，若所述充电器为第一充电器，所述第二PD收发模块处于工作状态下，所述第二PD收发模块用于将经所述数据引脚传输的共模信号与经所述CC引脚传输的PD充电信号进行相互转换，以对待充电设备进行PD充电，或者，所述数据线和所述第一充电器基于经所述数据引脚传输的差分信号对待充电设备进行非PD充电；
    在所述数据线与充电器连接的情况下，若所述充电器为第二充电器，所述第二PD收发模块处于非工作状态下，所述数据线和所述第二充电器基于经所述数据引脚传输的差分信号对待充电设备进行非PD充电；
    其中，在所述第二PD收发模块接收到经所述数据引脚传输的第二信号时，所述充电器为第一充电器；在所述第二PD收发模块未接收到经所述数据引脚传输的所述第二信号时，所述充电器为第二充电器，所述数据线在与待充电设备连接时生成第一信号，所述第一充电器响应于所述第一信号生成所述第二信号。
  8. 根据权利要求7所述的数据线，其中，所述第二PD收发模块包括：第二PD控制器、第二波形调整电路、第二共模输出放大器、第二滤波电路和第二共模输入放大器；
    所述第二PD控制器与所述CC引脚、所述第二波形调整电路以及所述第二滤波电路连接至所述数据引脚，所述第二滤波电路还通过所述第二共模输入放大器连接至所述数据引脚；
    其中，所述第二PD控制器用于获取经所述CC引脚传输的方波信号，所述第二波形调整电路用于将所述第二PD控制器获取的方波信号转换为弦波信号，并缩小所述弦波信号的振幅，所述第二共模输出放大器用于将所述缩小后的弦波信号转换为共模信号并经所述数据引脚进行共模传输；
    所述第二共模输入放大器用于放大经所述数据引脚传输的共模信号，所述第二滤波电路用于对所述放大后的共模信号进行滤波处理，并转换为方波信号后传输至所述第二PD控制器，以经所述CC引脚传输至待充电设备。
  9. 根据权利要求8所述的数据线，其中，所述第二PD控制器用于在所述第二共模输入放大器检测到的所述CC引脚上具有第一预设电信号时，生成所述第一信号，并将所述第一信号经所述第二波形调整电路、第二共模输 出放大器传输至所述数据引脚，其中，在所述数据线与支持PD充电的待充电设备连接时，所述CC引脚通过所述支持PD充电的待充电设备内的第一电阻接地时，所述CC引脚上具有所述第一预设电信号。
  10. 根据权利要求8所述的数据线，其中，所述数据引脚包括正数据引脚和负数据引脚，所述第二共模输入放大器用于获取经所述正数据引脚传输的第三通信信号和经所述负数据引脚传输的第四通信信号，并对所述第三通信信号和所述第四通信信号进行相加处理以得到共模信号。
  11. 根据权利要求8所述的数据线，其中，所述第二共模输出放大器用于将所述第二波形调整电路处理后的弦波信号拆分为第一通信信号和第二通信信号，所述第一通信信号和所述第二通信信号为共模信号。
  12. 一种充电设备，包括充电器和数据线，其中，所述充电器为如权利要求1至6中任一项所述的充电器，所述数据线为如权利要求7至11中任一项所述的数据线，所述第一Type-A接口中的数据引脚与所述第二Type-A接口中的数据引脚对应连接。
  13. 根据权利要求12所述的充电设备，其中，所述第二PD收发模块基于经所述CC引脚传输的电信号确定所述数据线插入待充电设备时，生成第一信号，且所述第一信号经数据引脚传输至所述第一PD收发模块；
    所述第一PD收发模块响应于所述第一信号连通所述第一PD收发模块的第一端与第一PD收发模块的第二端，并生成第二信号，所述第二信号经数据引脚传输至所述第二PD收发模块，所述第二PD收发模块响应于所述第二信号连通所述第二PD收发模块的第一端与所述第二PD收发模块的第二端。
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