WO2019084813A1 - Dispositif électronique et procédé de vérification de câble de recharge - Google Patents

Dispositif électronique et procédé de vérification de câble de recharge Download PDF

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Publication number
WO2019084813A1
WO2019084813A1 PCT/CN2017/108727 CN2017108727W WO2019084813A1 WO 2019084813 A1 WO2019084813 A1 WO 2019084813A1 CN 2017108727 W CN2017108727 W CN 2017108727W WO 2019084813 A1 WO2019084813 A1 WO 2019084813A1
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WIPO (PCT)
Prior art keywords
pin
data transmission
charging
adapter
control unit
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Application number
PCT/CN2017/108727
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English (en)
Chinese (zh)
Inventor
郭启明
郭继龙
Original Assignee
深圳市柔宇科技有限公司
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.)
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Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to CN201780096071.8A priority Critical patent/CN111418128A/zh
Priority to PCT/CN2017/108727 priority patent/WO2019084813A1/fr
Publication of WO2019084813A1 publication Critical patent/WO2019084813A1/fr

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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
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present invention relates to a charging system, and more particularly to an adapter capable of providing fast charging for an electronic device and a charging cable.
  • the usual solution when performing fast charging is to increase the charging current.
  • the charging current is increased, the amount of heat generated by the charging adapter, the charging cable, and the electronic device to be charged during charging increases accordingly.
  • the impedance of the charging cable is large due to the long length of the conductive line, and if the charging current is increased, it is still a common conventional design specification, and may not be able to withstand the large charging current transmission. The heat is damaged.
  • a charging cable designed for normal charging is used to perform a large charging current when transmitting a fast charging, the charging cable will generate a large amount of heat, resulting in a large power loss and a low charging efficiency. And because the excessive heat generation causes the cable surface temperature to be too high, it is damaged and even threatens the safety of the user's life.
  • the embodiment of the invention discloses an adapter capable of providing a relatively large charging current relatively safely.
  • an electronic device to be charged capable of safely receiving a large charging current is provided.
  • a charging system including the aforementioned adapter, charging cable, and electronic device is provided.
  • the present invention discloses an adapter including a first connection interface and a first processing control unit, the first connection interface including a first power supply pin, a first data transmission pin, a second data transmission pin, and a first grounding reference a first data transmission pin or the second data transmission pin is configured to transmit a data signal, and the first processing control unit is electrically connected to the first data transmission pin or the second data Transfer pin.
  • the first processing control unit from the first data when the adapter is powered on Transmitting a pin or the second data transmission pin to output a first verifying signal, when receiving the feedback information of the first verifying signal verifying, providing a first charging current from the first power pin And when the feedback information of the first verification signal verification pass is not received, the second charging current is provided from the first power supply pin, and the second charging current is less than the first charging current.
  • the invention discloses a charging cable, which comprises a first interface and a second interface.
  • the first interface is used to connect an adapter, and includes a second power pin, a third data transfer pin, a fourth data transfer pin, and a second ground pin.
  • the second interface is configured to connect an electronic device to be charged, and includes a third power pin, a fifth data transfer pin, a sixth data transfer pin, a third ground pin, and a first address pin,
  • the fifth data transmission pin is electrically connected to the third data transmission pin to form a first data transmission line
  • the sixth data transmission pin is electrically connected to the fourth data transmission pin to form a second data transmission line.
  • the first data transmission line or the second data transmission line and the first addressing pin are electrically connected to the first resistor, and when the second interface is electrically connected to the electronic device, the first A resistor for mating with a resistor coupled to the first addressing pin causes the first data transmission line or the second data transmission line to transmit a data signal.
  • the embodiment of the invention discloses an electronic device, comprising a fourth interface and a second processing control unit.
  • the fourth interface includes a fourth power pin, a seventh data transfer pin, an eighth data transfer pin, a fourth ground pin, and a second address pin;
  • the second processing control unit is electrically connected to The seventh data pin, the eighth data transfer pin, and the second address pin.
  • the second addressing pin and the fourth ground pin are electrically connected to the second resistor; one of the seventh data transmission pin or the eighth data transmission pin and the second addressing The feet cooperate with each other to transmit data signals.
  • the embodiment of the present invention further discloses an electronic device, including a fourth interface and a second processing control unit, wherein the fourth interface includes a fourth power pin, a seventh data transmission pin, and an eighth data transmission pin.
  • the seventh data transmission pin, the eighth data transmission pin and the second address pin are all electrically connected to the second processing control unit.
  • the second addressing pin is grounded through the second resistor; when the fourth interface is connected to the adapter through a charging cable, the second resistor cooperates with a resistor in the charging cable to cause the seventh data transmission A pin or the eighth data transfer pin and the second address pin cooperate to transmit a data signal.
  • the second processing control unit determines that the charging cable is original.
  • Embodiments of the present invention disclose a charging system including an adapter, an electronic device, and a charging cable connecting the adapter and the electronic device.
  • the adapter includes a first connection interface and a first processing control unit, the first connection interface including a first power pin, a first data transfer pin, a second data transfer pin, and a first ground pin,
  • the first data transmission pin or the second data transmission pin is configured to transmit a data signal
  • the first processing control unit is electrically connected to the first data transmission pin or the second data transmission pin.
  • the charging cable includes a first interface and a second interface; the first interface is configured to connect the adapter, and includes a second power pin, a third data transfer pin, a fourth data transfer pin, and a second ground pin .
  • the second interface is configured to connect an electronic device to be charged, and includes a third power pin, a fifth data transfer pin, a sixth data transfer pin, a third ground pin, and a first address pin,
  • the fifth data transmission pin is electrically connected to the third data transmission pin to form a first data transmission line
  • the sixth data transmission pin is electrically connected to the fourth data transmission pin to form a second data transmission line.
  • the electronic device includes a fourth interface and a second processing control unit;
  • the fourth interface includes a fourth power pin, a seventh data transfer pin, an eighth data transfer pin, a fourth ground pin, and a second An addressing pin;
  • the second processing control unit is electrically connected to the seventh data pin, the eighth data transmission pin, and the second addressing pin.
  • the first processing control unit outputs a data signal from the first data transmission pin or the second data transmission pin when the adapter is powered on; the first data transmission line or the second data a first resistor is electrically connected between the transmission line and the first addressing pin, and the first resistor is used to connect to the first finder when the second interface is electrically connected to the electronic device
  • the resistance of the address pin is such that the first data transmission line or the second data transmission line transmits the data signal; the second addressing pin and the fourth ground pin are electrically connected to the second resistor
  • the second processing control unit cooperates with the second addressing pin to receive the data signal through one of the seventh data transmission pin or the eighth data transmission pin.
  • the present invention provides a method for verifying a charging cable, which is operated on an electronic device, the electronic device includes a fourth interface and a second processing control unit, and the fourth interface includes a fourth power pin and a seventh data transmission pin. And an eighth data transmission pin, a fourth ground pin, and a second address pin, wherein the seventh data transmission pin, the eighth data transmission pin, and the second address pin are both associated with the second processing
  • the control unit is electrically connected, and the second addressing pin is grounded through the second resistor, wherein the verification method comprises:
  • the adapter, the charging cable is original, and whether it is suitable for providing a larger one in the original is determined by whether the adapter, the charging cable and the electronic device have a matching data signal transmission at the designated pin.
  • the first charging current is quickly charged.
  • the electronic device to be charged checks and determines the first verification signal included in the data signal, thereby being able to effectively identify whether the charging cable is suitable for transmitting the first charging current of the fast charging, so as to prevent the design specification of the charging cable from being unable to be The higher first charging current is carried and is damaged, even causing damage to the adapter or the electronic device to be charged.
  • FIG. 1 is a schematic diagram of an overall connection structure of a charging system according to an embodiment of the present invention
  • FIG. 2 is a schematic waveform diagram of a first verification signal according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of an overall connection structure of a charging system according to another embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for verifying a first verification signal by an electronic device according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for verifying an adapter and a cable according to an embodiment of the present invention.
  • the charging system 10 includes an adapter 11 electrically connected to each other, a charging cable 13, and an electronic device 15 to be charged.
  • the adapter 11 is configured to provide a power signal, and the charging cable 13 transmits the power signal to the electronic device 15 to be charged, and supplies power to the energy storage unit (not shown) for storing electrical energy in the electronic device 15 to be charged. .
  • the power signal includes a charging voltage and a charging current.
  • the electronic device 15 can determine whether the adapter 11 and the charging cable 13 are suitable for fast charging by determining whether the adapter 11 and the charging cable 13 are original. That is, when the electronic device 15 determines that the adapter 11 and the charging cable 13 are original, the quick charging can be performed through the adapter 11 and the charging cable 13; when the electronic device 15 determines that the adapter 11 and the charging cable 13 are not original, That is, it is non-original, and the adapter 11 and the charging cable 13 are not suitable for performing fast charging, and only conventional charging can be performed. It can be understood that the charging current of the fast charge charging is greater than the normal charging current. Of course, the charging time of the electronic device 15 can be shortened and the charging efficiency can be improved during fast charging.
  • the adapter 11 can be a voltage conversion connector that directly converts an alternating current power source into a direct current power source signal and directly outputs the same, or an energy storage power source that converts the alternating current power source into a direct current power source signal and stores the same, such as a portable energy storage device such as a charging treasure. power supply.
  • the adapter 11 includes a first interface H1, a first processing control unit 111, and a power supply unit 113.
  • the first interface H1 includes a first power pin Vbus1, a first data transfer pin D1, a second data transfer pin D2, and a first ground pin G1.
  • the power supply unit 113 is electrically connected to the first power pin Vbus1 and the first ground pin G1, and the power supply unit 113 is configured to output and provide a charging voltage in the power signal through the first power pin Vbus1 and the first ground pin G1.
  • the first power pin Vbus1 cooperates with the first ground pin G1 to provide a first charging voltage and a first charging current or a first charging voltage and a second charging current.
  • the second charging current is less than the first charging current, the first charging current corresponds to the fast charging of the adapter 11, and the second charging current corresponds to the normal charging of the adapter 11.
  • the first charging voltage is 5V
  • the first charging current is 4A-6A
  • the second charging current is 1A.
  • the first processing control unit 111 is electrically connected to the first data transmission pin D1 or the second data transmission pin D2, that is, the first data transmission pin D1 and the second data transmission pin D2 are different from the first processing.
  • the control unit 111 is electrically connected.
  • the first processing control unit 111 is electrically connected to the second The data transfer pin D2, the first data transfer pin D1 is left floating, that is, the first data transfer pin D1 is not connected to the first process control unit 111 and other electronic components and conductive circuits.
  • the first processing control unit 111 first outputs a data signal to the charging cable 13 and the electronic device 15 to be charged through the second data transmission pin D2.
  • the data signal includes a first verify signal as shown in FIG. 2 is a waveform diagram of the first verification signal.
  • the first verification signal is a pulse width modulation signal (PWM signal) including n pulses, and each pulse includes the first.
  • Time width T is 8.
  • n is 8.
  • n can be adjusted according to actual needs, for example, a natural number greater than 1 such as 6, 7, 9, 10, or the like.
  • the first processing control unit 111 is electrically connected to the first data transmission pin D1, and the second data transmission pin D2 is suspended, that is, the second data transmission pin D2 is not connected. To other electronic components or conductive circuits. The first processing control unit 111 can transmit the above PWM signal through the first data transmission pin D1.
  • the first verification signal is used to verify whether the charging cable 13 and the adapter 11 are original and whether it is suitable for transmitting the first charging current. Wherein, when the electronic device 15 to be charged receives the data signal including the first verification signal, it can indicate that the charging cable 13 and the adapter 11 are original, and correspondingly, when the electronic device 15 to be charged does not receive the data signal It can be shown that the charging cable 13 and/or the adapter 11 are not original. Further, verification of the first verification signal is performed by the electronic device 15 to be charged. When the check passes, the adapter 11 provides a first charging current through the first power pin Vbus1, and when the check fails, the adapter 11 provides a second charging current through the first power pin Vbus1.
  • the second data transmission pin D2 further receives the feedback information from the electronic device 15 to be charged through the charging cable 13, wherein the feedback information includes a verification completion signal or a verification completion signal representation. Feedback.
  • the first processing control unit 111 controls the first power supply pin Vbus1 to provide the first charging current.
  • the first processing control unit 111 cannot receive the verification completion signal, and accordingly controls the first power supply pin Vbus1 to provide the second charging current.
  • the first processing control unit 111 does not receive the verification completion signal for the first predetermined period of time, indicating that the verification fails, the first power supply pin Vbus1 is correspondingly controlled to provide the second charging current.
  • the first preset time period can be set according to actual needs, for example, 3 seconds.
  • the first interface H1 is an A-type interface of the USB2.0 specification, wherein the first power supply pin Vbus1 is a power supply pin Vbus, and the first data transmission pin D1 corresponds to a data transmission pin D+, and a second The data transmission pin D2 corresponds to the data transmission pin D-, and the first data transmission pin D1 is electrically disconnected from the second data transmission pin D2, and the first ground pin G1 is the ground pin GND.
  • the charging cable 13 includes a second interface H2 for connecting the first interface H1 of the adapter 11, and a third interface H3 for connecting the electronic device 15 to be charged.
  • the second interface H2 includes a second power pin Vbus2, a third data transfer pin D3, a fourth data transfer pin D4, and a second ground pin G2.
  • the third data transfer pin D3 and the fourth data transfer pin D4 cooperate to transmit data.
  • the third interface H3 includes a third power pin Vbus3, a fifth data transfer pin D5, a sixth data transfer pin D6, a third ground pin G3, and a first address pin ID1.
  • the second power pin Vbus2 and the second ground pin G2 respectively correspond to the third power pin Vbus3 and the third ground pin G3, that is, the third power pin Vbus3 is electrically connected to the second power pin Vbus2,
  • the three ground pins G3 are electrically connected to the second ground pin G2.
  • the second power pin Vbus2 and the second ground pin G2 and the third power pin Vbus3 and the third ground pin G3 are used for transmitting the first charging voltage and the first charging current, or transmitting the first charging voltage and the second charging Current.
  • the fifth data transmission pin D5 is electrically connected to the third data transmission pin D3, thus constituting the first data transmission line L1; the sixth data transmission pin D6 is electrically connected to the fourth data transmission pin D4.
  • the second data transmission line L2 is constructed.
  • the first resistor R1 is electrically connected between the second data transmission line L2 of the charging cable 13 and the first addressing pin ID1.
  • the second data transmission pin D2 of the second data transmission line L2 connected to the first addressing pin ID1 on the adapter 11 is electrically connected to the first processing control unit 111. That is, when the second data transmission line L2 is connected to the first address pin ID1, the first address pin ID1 is electrically connected to the first process control unit 111.
  • the second data transmission line L2 of the charging cable 13 and the first addressing pin ID1 are electrically connected to the first resistor R1, that is, the sixth data pin D6 and the first addressing.
  • the first resistor R1 is electrically connected between the pins ID1.
  • the first resistor R1 causes the sixth data pin D6 to cooperate with the first addressing pin ID1 to allow the cable 13 to transmit data signals between the adapter 11 and the electronic device 15 to be charged.
  • the fourth data transmission pin D4 is from the second data transmission pin D2
  • the first verification signal is transmitted to the first addressing pin ID1 and the sixth data pin D6 through the first resistor R1.
  • the verification completion signal is transmitted to the fourth data transmission pin D6 and the first addressing pin ID1 connected to the first resistor R1 to the fourth data transmission.
  • Pin D4 then the second power pin Vbus2 transmits a first charging current to the third power pin Vbus3.
  • the fourth data transmission pin D4 does not receive the verification completion signal, the second power supply pin Vbus2 transmits the second charging current to the third power supply pin Vbus3.
  • the second power pin Vbus2 corresponds to the first power pin Vbus1
  • the second ground pin G2 corresponds to the first ground pin G1
  • the third transfer pin D3 corresponds to the first data transmission pin D1
  • the fourth The data transfer pin D4 corresponds to the second data transfer pin D2.
  • the second interface H2 is a Type A interface of the USB 2.0 specification
  • the third interface H3 is a Micro B type interface of the USB 2.0 specification.
  • the second power pin Vbus1, the third power pin Vbus2 are the power pin Vbus
  • the third data transfer pin D1 correspond to the data transmission pin D+
  • the pin D4 and the sixth data transmission pin D6 correspond to the data transmission pin D-
  • the second ground pin G2 and the third ground pin G3 are the ground pin GND.
  • the second power pin Vbus2 and the third power pin Vbus3 cooperate with the second ground pin G2 and the third ground pin G3 to be the electronic device 15 to be charged.
  • a first charging current or a second charging current is provided.
  • the charging cable 13 may also be in a data signal transmission state. Specifically, when the device connected to the second data interface H2 of the charging cable 13 is the adapter 11, the transmission of the data signal can cooperate with the first addressing pin ID1 through the first transmission line L1 or the second data transmission line L2.
  • the data signal can be transmitted through the first transmission line L1 and the second data transmission line.
  • L2 The mutual cooperation of L2 is realized.
  • the electronic device 15 to be charged includes a fourth interface H4, a second processing control unit 151, and a power supply unit 153.
  • the fourth interface H4 is electrically connected to the third interface H3 of the charging cable 13 for transmitting a data signal to the second processing control unit 151 or the power signal to the power unit 153.
  • the fourth interface H4 includes a fourth power pin Vbus4, a seventh data transfer pin D7, an eighth data transfer pin D8, a fourth ground pin G4, and a second address pin ID2.
  • the seventh data transfer pin D7, the eighth data transfer pin D8, and the second address pin ID2 are electrically connected to the second process control unit 151.
  • the second addressing pin ID2 is connected to the second resistor R2, and the second resistor R2 and the fourth ground pin G4 are both grounded.
  • the fourth power pin Vbus4 corresponds to the third power pin Vbus3
  • the fourth ground pin G4 corresponds to the third ground pin G3
  • the seventh data transfer pin D7 corresponds to the fifth data transmission pin D5
  • the pin D8 corresponds to the sixth data transfer pin D6
  • the second address pin ID2 corresponds to the first address pin ID1.
  • the second resistor R2 and the first resistor R1 are connected in series on the second data transmission line L2 through the first and second addressing pins ID1 and ID2, and the first resistor R2 and the first resistor R1 cooperate to serve as a sixth data transmission lead.
  • the pull-down resistor of the pin D6 is such that the eighth data transfer pin D8 and the second address pin ID2 electrically connected to the sixth data transfer pin D6 cooperate with each other for data transfer.
  • the resistance of the first resistor R1 is 5 K ⁇
  • the resistance of the second resistor R2 is 10 K ⁇ .
  • the second processing control unit 151 is electrically connected to the second addressing pin ID2 and the eighth data transmission pin D8 to receive the data signal including the first verification signal to determine whether the data signal is preset data. signal. Specifically, when the received data signal is the preset data signal, the second processing processing control unit 151 determines that the charging cable 13 is an original charging cable. Of course, the second processing processing control unit 151 may determine that the adapter 11 is also an original adapter, while determining that the charging cable 13 is an original charging cable.
  • the preset data signal is a PWM signal whose time span is the first preset T1 time value.
  • the second processing control unit 151 further performs verification on the first verification signal, and determines whether to output the verification completion signal according to the verification result after the verification of the first verification signal is completed. That is, after the first verification signal is verified, the characterization adapter 11 and the charging cable are adapted for fast charging, and the second processing control unit 151 controls the power supply unit 153 to enter the fast charging mode, that is, the control.
  • the power supply unit 153 can receive the first charging current through the fourth power pin Vbus4 and the fourth ground pin G4, and at the same time, the second processing control unit 151 passes the second addressing pin ID2 and the eighth data.
  • the transmission pin D8 outputs the verification completion signal only through the eighth data transmission pin D8 and transmits to the adapter 11 through the charging cable 13; otherwise, when the first verification signal fails the verification, the adapter 11 is characterized
  • the charging cable is not suitable for fast charging, and the second processing control unit 151 controls the power unit 153. Not entering the fast charge charging mode, that is, controlling the power supply unit 153 to receive the second charging current through the fourth power pin Vbus4 and the fourth ground pin G4, and simultaneously, the second processing control unit 151 The verification completion signal is not output. It should be noted that the second processing control unit 151 sets the second addressing pin ID2 to the input state in advance.
  • the verification completion signal includes the power of the power supply unit 153 and the maximum current flow information allowed by the power supply unit 153, so that the adapter 11 determines the magnitude or duration of the first charging current.
  • the verification completion signal is specifically transmitted through the second addressing pin ID2 and the eighth data transmission pin D8 or only through the eighth data transmission pin D8 depending on the type of the verification completion signal. Specifically, when the verification completion signal is a differential signal, the transmission is performed by the second addressing pin ID2 and the eighth data transmission pin D8; when the verification completion signal is a single-ended signal, only the first Eight data transmission pins D8 are transmitted.
  • the first charging current can be received from the fourth voltage pin Vbus4 to charge the power supply unit 153; when the verification fails, the fourth voltage is passed.
  • the pin Vbus4 receives the second charging current to charge the power supply unit 153.
  • the second processing control unit 151 outputs a verification completion signal at a first predetermined time and passes the second addressing if the verification passes.
  • the pin ID2 and the eighth data transmission pin D8 are transmitted to the adapter 11, that is, after the first verification signal passes the verification, the second processing control unit 151 receives the first verification signal from the first A verification completion signal is output to the adapter 11 for a predetermined time; if the verification fails, the verification completion signal cannot be output at the first predetermined time.
  • the verification completion signal represents the feedback information.
  • the fourth interface H4 is a Micro B type interface of the USB2.0 specification, wherein the fourth power supply pin Vbus4 is the power supply pin Vbus, and the seventh data transmission pin D7 corresponds to the data transmission pin D+, and the eighth data transmission reference Pin D8 corresponds to data transfer pin D-, and fourth ground pin G4 is ground pin GND.
  • the foregoing electronic device 15 to be charged is in a charging state, that is, the fourth power pin Vbus4 cooperates with the fourth ground pin G4 to provide the first charging current or the second charging current to the power unit of the electronic device 15. 153.
  • the electronic device 15 may also be in a data signal transmission state, in which case the second addressing pin ID2 cooperates with the seventh data transmission pin D7 or the eighth data transmission line D8 to perform transmission of the data signal; or the seventh data transmission reference The foot D7 and the eighth data transmission line D8 are matched with each other. The transmission of the data signal is performed.
  • FIG. 3 is a schematic diagram of an overall connection structure of a charging system according to another embodiment of the present invention. As shown in FIG. 3, the structure and connection relationship between the charging system 20 and the charging system 10 are basically the same, and the difference is:
  • the first processing unit 211 is electrically connected to the first data transmission pin D1, and the second data transmission pin D2 is suspended, that is, the second data transmission pin D2 is not connected to other electronic components or conductive circuits. .
  • the first data transmission line L1 and the first addressing pin ID1 are electrically connected to the first resistor R1, that is, the first resistor R1 is electrically connected to the first data transmission line D1 and the first finder. Address pin between ID1. It can be seen that the first data transmission pin D1 connected to the first data transmission line L1 connected to the first addressing pin ID1 on the adapter 21 is electrically connected to the first processing control unit 211. That is, when the first data transmission line L1 is connected to the first address pin ID1, the first data transfer pin D1 is electrically connected to the first process control unit 211.
  • the second resistor R2 and the first resistor R1 are connected in series on the first data transmission line L1 through the first and second addressing pins ID1 and ID2 as a pull-down resistor of the fifth data transmission pin D5, thereby enabling the seventh data transmission.
  • Pin D7 and second addressing pin ID2 cooperate to perform data transmission.
  • the resistance of the first resistor R1 is 5 K ⁇
  • the resistance of the second resistor R2 is 10 K ⁇ .
  • the second processing control unit 251 is electrically connected to the second addressing pin ID2 and the seventh data transmission pin D7 to receive the first verification signal, and is calibrated for the first verification signal. After the verification, and after the verification is completed, it is determined whether to output the verification completion signal according to the verification result. After receiving the first verification signal and performing verification, the second processing control unit 151 outputs a verification completion signal to the second addressing pin and the seventh data at the first predetermined time after the verification is passed. Transmission pin D7, if the verification fails, the verification completion signal cannot be output at the first predetermined time.
  • the fifth data pin D5 and the first addressing pin ID1 cooperate to allow the cable 13 to transmit data signals between the adapter 11 and the electronic device 15 to be charged.
  • the third data transmission pin D3 receives the first verification signal from the first data transmission pin D1
  • the first verification signal is transmitted through the fifth data pin D5 and the first resistor R1.
  • the second processing unit 251 receives the first verification signal from the seventh data pin D7 and the second addressing pin ID2 and performs verification.
  • the verification completion signal passes The fifth data transfer pin D5 connected to the first resistor R1 and the first address pin ID1 are transferred to the third data transfer pin D3, and then the second power pin Vbus2 transmits the first charge current to the third power source. Pin Vbus3.
  • the third data transmission pin D3 does not receive the verification completion signal
  • the second power supply pin Vbus2 transmits the second charging current to the third power supply pin Vbus3.
  • FIG. 4 is a flowchart of performing verification on the first verification signal by the electronic device 15 to be charged illustrated in FIGS. 1-3 .
  • the second processing unit 151 specifically includes the following steps when performing the verification:
  • Step 401 Receive a first verification signal sent by the adapter.
  • the second processing control unit 151 receives the first verification signal from the second addressing pin ID2 and the eighth data transmission pin D8.
  • the first verification signal is a pulse width modulation signal (Pulse Width Modulation, PWM signal).
  • the second processing control unit 151 receives the first verification signal from the second addressing pin ID2 and the seventh data transmission pin D7.
  • Step 402 Analyze the first verification signal, and obtain, from the first verification signal, a quantity of pulse signals whose time width is equal to the first time.
  • the first check signal when the time width of the pulse is equal to the first duration, it indicates that a pulse is successfully acquired, and the number of pulses is increased by one.
  • Step 403 Compare whether the quantity is equal to the preset threshold; if yes, execute step 404; if not, the process ends.
  • the adapter 11 When the acquired time width is the first time, the number of the pulse signals is equal to the preset value, indicating that the first check signal is verified to pass; otherwise, the acquired time width is the pulse signal of the first time. When the quantity is not equal to the preset value, it indicates that the first check signal check fails. When the first verification information fails the verification, the adapter 11 outputs a second charging current to supply power to the electronic device 15.
  • the time width of the pulse is not equal to the first duration, indicating that the acquisition pulse fails, the number of times the pulse capture fails is recorded, and when the number of capture failures is greater than the second threshold, the verification fails.
  • the time width of a pulse signal when the time width of a pulse signal is greater than the first time, it also indicates that the pulse signal has not passed the verification.
  • the second threshold can be set according to actual needs, for example 10.
  • the first preset time may be the same as the sum of the lengths of the n pulse signals to be analyzed.
  • Step 404 Generate a signal for completion of fast charge verification, and send the generated verification completion signal to the adapter through the second addressing pin second addressing pin, and control the adapter to respond to the verification completion signal to be the second The charging current is increased to the first charging current.
  • the verification completion signal may be transmitted to the adapter through the second addressing pin ID2 and the eighth data transmission pin D8 or only the eighth data transmission pin D8.
  • the verification completion signal is a differential signal
  • the verification completion signal is transmitted to the adapter through the second addressing pin ID2 and the eighth data transmission pin D8.
  • the verification completion signal is a single-ended signal
  • the verification completion signal is transmitted to the adapter only through the eighth data transmission pin D8.
  • the verification completion signal can be transmitted to the adapter via the second addressing pin ID2 and the seventh data transmission pin D7 or only the seventh data transmission pin D7.
  • the verification completion signal is a differential signal
  • the verification completion signal is transmitted to the adapter through the second addressing pin ID2 and the seventh data transmission pin D7.
  • the verification completion signal is a single-ended signal
  • the verification completion signal is transmitted to the adapter only through the seventh data transmission pin D7.
  • FIG. 5 it is a flowchart of a method for verifying whether the adapter and the cable are original, according to an embodiment of the present invention. As shown in FIG. 5, the method includes the steps of:
  • Step 501 When the fourth interface H4 is connected to the adapters 11, 21 through the charging cables 13, 23, determine whether the second processing control unit 151 transmits from the second addressing pin ID2 and the seventh data. Pin D7 receives a data signal from the second addressing pin ID2 and the eighth data transmission pin D8. If yes, go to step 502; if no, go to step 503.
  • the first interface H1 of the adapter 11 is plugged and electrically connected to the second interface H2 of the charging cable 13, the third interface H3 of the charging cable 13 and the fourth of the electronic device 15 to be charged
  • the interface H4 is plugged in and electrically connected, and the adapter 11 is powered on.
  • Step 502 determining that the charging cables 13, 23 are original.
  • the second processing control unit 151 determines that the charging cable 13 is original, that is, determines that it is the original charging cable 13.
  • the second processing control unit 151 further determines the adapter 11 is also original, that is, it is judged to be the original adapter 11.
  • the third interface H3 of the original charging cable 11 connected to the electronic device 15 includes a first addressing pin ID1, and the first data transmission line L1 or the second data transmission line L2 and the first addressing pin ID1
  • the first resistor R1 is electrically connected.
  • the first resistor R1 cooperates with the second resistor R2 to enable the first data transmission line L1 or the second data transmission line L2 to normally transmit the data signal.
  • the original adapter 11 includes a first processing control unit 111, 211 and a first data transmission pin D1 and a second data transmission pin D2 for electrically connecting to the charging cables 13, 23, the first data transmission pin D1
  • the first processing control unit 111, 211 is electrically connected, and the first data transmission pin D1 or the second data transmission pin D2 is used to transmit the data signal.
  • step 503 it is determined that at least one of the charging cables 13, 23 and the adapters 11, 21 is non-original.
  • the second power pin Vbus2 is electrically connected to the first power pin Vbus1
  • the second ground pin G2 corresponds to the first ground pin G1
  • the third transmission pin D3 corresponds to the first data transmission pin D1
  • the fourth data transmission pin D4 corresponds to the second data transmission pin D2.
  • the fourth power pin Vbus4 is electrically connected to the third power pin Vbus3
  • the fourth ground pin G4 is electrically connected to the third ground pin G3
  • the seventh transmission pin D7 is electrically
  • the fifth data transmission pin is electrically connected to the sixth data transmission pin D8, and the second data transmission pin D8 is electrically connected to the first address pin ID1.
  • the first processing control unit 111 After the adapter 11 is powered on, the first processing control unit 111 outputs a first verification signal from the second data transmission pin D2, the first verification signal passes through the second data transmission line L2 of the charging cable 13, and the first resistance.
  • R1, the first addressing pin ID1, the second addressing pin ID2, and the seventh transmission pin D7 or the eighth transmission pin D8 are transmitted to the second processing control unit 151.
  • the first processing control unit 112 in the adapter 11 is selectively electrically connected to one of the first data transmission pin D1 or the second data transmission pin D2, and the charging cable 13 is on the first data transmission line L1.
  • the first addressing pin ID1 sets the first resistor R1 or the second data transmission line L2 and the first addressing pin ID1 to set the second resistor R1, thereby constituting the original adapter 11 and the original charging cable 13. In this way, when the electronic device 15 receives the data signal through the second addressing pin ID2 electrically connected to the first addressing pin ID1, it can be determined that the adapter 11 and the charging cable 13 are both original.
  • the first data transmission pin D1 and the second data transmission pin D2 of the adapter in the prior art are shorted together, so the existing adapter cannot send the data signal to the electricity to be charged.
  • the child device that is, the electronic device, receives the data signal transmitted by the adapter.
  • the existing cable needs to work together through two data lines to transmit the data signal, since the original adapter has only one data transmission pin and the first processing control unit 112. The connection, therefore, the original adapter cannot send the data signal to the electronic device through the existing charging cable (non-original cable).
  • the electronic device when the electronic device does not receive the data signal, it can be determined that at least one of the adapter 11 and the charging cable 13 is non-original, that is, if the data signal is received and when the cable 15 is In the original case, it is determined that the adapter 11 is also original.
  • the second control unit 151 passes the second addressing pin ID2 and the seventh data transmission pin or the eighth data.
  • the transmission pin sends a verification completion signal, wherein the verification completion signal includes the power of the power supply unit 153 and the maximum current flow information of the allowed input.
  • the electronic device 15 determines that the charging cable 13 and the adapter 11 are original, it can be confirmed that the charging cable 13 and the adapter 11 are adapted to provide a large charging current to be executed as an electronic device.
  • the device 15 performs rapid charging without causing damage to the charging cable 13 and the adapter 11.
  • the second control unit 151 controls the power supply unit 153 to enter the fast charging mode, and passes the fourth power pin Vbus4 and the first The current of the four ground pins G4 is increased to the first charging current.
  • the second processing control unit 151 when the second processing control unit 151 receives the data signal and determines that the adapter 11 and the charging cable 13 are original, the second processing control unit 151 further verifies whether the data signal is preset data. Signal to further determine more accurately whether the adapter 11 and the charging cable 13 are suitable for fast charging.
  • the data signal further includes a first check signal
  • the second processing control unit 151 analyzes the first check signal to obtain a pulse signal whose first time width of the first check signal is equal to the first time width.
  • the quantity when the acquired quantity is the same as the preset threshold, indicates that the first verification signal is verified, the second processing control unit 151 outputs the verification completion signal, and passes through the second data transmission line L2 and the second addressing pin ID2.
  • the first addressing pin ID1, the first resistor R1, the fourth data transmission pin D4, and the second data transmission pin D2 are transmitted to the first processing control unit 111 of the adapter 11, and the first processing control unit 111 receives the verification.
  • the first charging voltage and/or the first charging current are respectively supplied from the first power pin Vbus1 to the second power pin Vbus2, and correspondingly through the third power pin.
  • the Vbus 3 and the fourth power supply pin Vbus4 are transmitted to the power supply unit 153 to perform fast charging on the power supply unit 153.
  • the so-called fast charging means that the charging current of the adapter 11 is increased from the second charging current to the first charging current.
  • the second processing control unit 151 When the second processing control unit 151 obtains a time width equal to the first time width from the first verification signal and the number of the pulse signals is different from the preset threshold, indicating that the verification fails, the second processing control unit 151 The verification completion signal is not output. The first processing control unit 111 of the adapter 11 accordingly cannot accept the verification completion signal. At this time, the adapter 11 supplies the second charging current from the first power pin Vbus1 to the second power pin Vbus2, and correspondingly transmits it to the power source unit 153 through the third power pin Vbus3 and the fourth power pin Vbus4, to The power supply unit 153 performs normal charging.
  • the electronic device 15 to be charged checks the first verification signal included in the data signal to determine whether the charging cable 13 is suitable for transmitting the first charging current of the fast charging to prevent the charging cable 13 from being charged.
  • the design specification cannot be damaged by carrying a higher first charging current, and even causes damage to the adapter 11 or the electronic device 15 to be charged.

Landscapes

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

Abstract

La présente invention concerne un système de recharge (10). Le système de recharge (10) comprend un adaptateur (11), un câble de recharge (13) et un dispositif électronique (15) à recharger. L'adaptateur (11) comprend une première interface de connexion (H1) et une première unité de traitement et de commande (111) ; la première interface de connexion (H1) comprend une première broche d'alimentation (Vbus1), une première broche de transmission de données (D1) et une seconde broche de transmission de données (D2) ; et la première unité de traitement et de commande (111) est reliée électriquement à la première broche de transmission de données (D1) ou à la seconde broche de transmission de données (D2). Lorsqu'un système de recharge est mis sous tension et fonctionne, lorsque le dispositif électronique reçoit, de l'une ou l'autre des première et seconde broches de transmission de données (D1, D2), un premier signal de vérification délivré par la première unité de traitement et de commande (111), qui indique que l'adaptateur (11) et le câble de recharge (13) sont originaux, alors un premier courant de recharge est fourni à partir de la première broche de puissance (Vbus1) au dispositif électronique (15) ; et lorsque aucune information de rétroaction n'est reçue, ce qui indique qu'au moins l'un ou l'autre de l'adaptateur (11) et du câble de recharge (13) est non original, alors un second courant de charge plus petit que le premier courant de charge est fourni à partir de la première broche d'alimentation (Vbus1) au dispositif électronique (15). L'invention concerne également un procédé de vérification du câble de recharge (13), destiné à vérifier si le câble de recharge est original.
PCT/CN2017/108727 2017-10-31 2017-10-31 Dispositif électronique et procédé de vérification de câble de recharge WO2019084813A1 (fr)

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CN201780096071.8A CN111418128A (zh) 2017-10-31 2017-10-31 电子设备以及充电线缆验证方法
PCT/CN2017/108727 WO2019084813A1 (fr) 2017-10-31 2017-10-31 Dispositif électronique et procédé de vérification de câble de recharge

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US20090284341A1 (en) * 2008-05-14 2009-11-19 Seiko Epson Corporation Coil unit and electronic apparatus using the same
CN102684270A (zh) * 2012-05-31 2012-09-19 华为技术有限公司 一种识别usb充电器类型的方法及usb设备
CN102957193A (zh) * 2012-11-19 2013-03-06 中兴通讯股份有限公司 一种充电管理方法、装置和系统
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