CN117375168A - Full-compatible conversion module for converting USB-A port into Type-C port, charging datase:Sub>A line and charging method - Google Patents

Full-compatible conversion module for converting USB-A port into Type-C port, charging datase:Sub>A line and charging method Download PDF

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Publication number
CN117375168A
CN117375168A CN202311351786.7A CN202311351786A CN117375168A CN 117375168 A CN117375168 A CN 117375168A CN 202311351786 A CN202311351786 A CN 202311351786A CN 117375168 A CN117375168 A CN 117375168A
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China
Prior art keywords
circuit
charging
main control
control mcu
mcu circuit
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CN202311351786.7A
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Inventor
洪琼珊
吕碧霏
马明忠
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Shenzhen Zhengxiangbao Electronics Co ltd
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Shenzhen Zhengxiangbao Electronics Co ltd
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Priority to CN202311351786.7A priority Critical patent/CN117375168A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • 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
    • 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
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits

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

Abstract

A full-compatible conversion module for converting ase:Sub>A USB-A port into ase:Sub>A Type-C port, ase:Sub>A charging datase:Sub>A line and ase:Sub>A charging method are provided, wherein the conversion module comprises ase:Sub>A main control MCU circuit, and the main control MCU circuit comprises: LDO circuit, charging protocol communication circuit of charging source; the PD protocol communication circuit of the power receiving equipment is used for sending a PD protocol packet to the power receiving equipment and responding to the reply information of the power receiving equipment; the current and voltage sampling circuit is used for collecting the output current and the output voltage of the charging power supply and providing the output current and the output voltage to the main control MCU circuit; the switching control circuit is controlled by the main control MCU circuit and is switched between the D+/D-pin and the voltage dividing circuit; the charging control switch circuit is controlled by the main control MCU circuit to turn on or off the charging circuit, so that the charging control switch circuit has the advantages that the charging control switch circuit can charge with the largest charging power originally when the charging power supply and the powered equipment are original, and can charge with the charging power allowed by the PD fast protocol when the charging power supply and the powered equipment are not original.

Description

Full-compatible conversion module for converting USB-A port into Type-C port, charging datase:Sub>A line and charging method
Technical Field
The invention relates to the technical field of charging datase:Sub>A lines, in particular to ase:Sub>A full-compatible conversion module for converting ase:Sub>A USB-A port into ase:Sub>A Type-C port, ase:Sub>A charging datase:Sub>A line and ase:Sub>A charging method.
Background
Electronic equipment required to be charged in the market is various in types, and each type of electronic equipment such as mobile phones, tablet computers and portable computers needs an adapter and a data wire of a corresponding manufacturer to be charged or data can be transmitted normally; for example: the Huase:Sub>A-Chen adapter can realize 66W quick charge for ase:Sub>A mobile phone, but the Huase:Sub>A-Chen adapter can not charge powered equipment of Apple, such as iPad, mobile phone or portable computer, through ase:Sub>A datase:Sub>A line from USB-A to Type-C, because of different charging protocols.
In order to solve the above-mentioned problem, a charging data line is commercially available, which has a charging protocol conversion chip that can only charge a powered device with an automatic conversion to a PD fast charging protocol between a charging power source (such as an adapter or other charging power source) and the powered device. In this case, the charging protocol conversion chip only allows the power receiving apparatus to be charged with the safest current and voltage, and although the charging effect is better than the slow charging effect, the charging wire also allows the power receiving apparatus to be charged with the safest current and voltage when the adapter and the power receiving apparatus are the same as the original, and cannot be charged with the highest quick charging power of the original.
Disclosure of Invention
In order to solve the above problems, the present invention provides ase:Sub>A fully compatible conversion module, ase:Sub>A charging datase:Sub>A line and ase:Sub>A charging method for converting ase:Sub>A USB-ase:Sub>A port into ase:Sub>A Type-C port, which can be charged with the maximum charging power of original charge when ase:Sub>A charging power source and ase:Sub>A power receiving apparatus are original and can be charged with the charging power allowed by ase:Sub>A PD fast protocol when the charging power source and the power receiving apparatus are non-original.
The technical scheme of the invention is as follows: the utility model provides ase:Sub>A USB-A mouth changes full compatible conversion module of Type-C mouth, include:
and a main control MCU circuit, wherein the main control MCU circuit comprises:
the LDO circuit is used for providing power for the main control MCU circuit and the switching control circuit;
the charging power supply charging protocol communication circuit is used for communicating with the charging power supply, confirming the charging protocol applicable to the charging circuit and storing the charging protocol;
the PD protocol communication circuit of the power receiving equipment is used for sending a PD protocol packet to the power receiving equipment and responding to the reply information of the power receiving equipment; the method comprises the steps of,
the current and voltage sampling circuit is used for collecting the output current and the output voltage of the charging power supply and providing the output current and the output voltage for the main control MCU circuit;
the switching control circuit is controlled by the main control MCU circuit and is switched between the D+/D-pin and the voltage dividing circuit;
and the charging control switch circuit is controlled by the main control MCU circuit to turn on or off the charging circuit.
As an improvement of the invention, the switching control circuit is a single-pole double-throw analog circuit chip.
As an improvement of the invention, the charging control switch circuit is a PMOS tube.
As an improvement of the invention, the main control MCU circuit adopts a chip with the model of FM8PD871 LV.
As an improvement of the invention, the voltage dividing circuit comprises a first resistor R1 and a second resistor R2, wherein one end of the first resistor R1 is connected with the VDD pin of the main control MCU circuit 1, the other end of the first resistor R1 is connected with one end of the second resistor R2, and the other end of the second resistor R2 is grounded; and the common terminal A of the first resistor R1 and the second resistor R2 is connected with the CHO pin of the switching control circuit.
The invention also provides ase:Sub>A full-compatible charging datase:Sub>A line from the USB-A port to the Type-C port, which comprises ase:Sub>A USB-A male head and ase:Sub>A Type-C male head, wherein ase:Sub>A full-compatible conversion module is arranged between the USB-A male head and the Type-C male head, and is the full-compatible conversion module from the USB-A port to the Type-C port.
As an improvement to the invention, the full-compatible conversion module from the USB-A port to the Type-C port and the Type-C male head are arranged into an integrated structure, or the full-compatible conversion module from the USB-A port to the Type-C port and the USB-A male head are arranged into an integrated structure.
As an improvement to the invention, the full-compatible conversion module from the USB-A port to the Type-C port is arranged in ase:Sub>A wire between the USB-A male head and the Type-C male head.
The invention also provides ase:Sub>A charging method for the full-compatible charging datase:Sub>A line from the USB-A port to the Type-C port, which comprises the following steps:
s1, accessing a charging power supply, and powering up a full-compatible conversion module;
s2, the main control MCU circuit turns off the charging control circuit and the switching control circuit;
s3, the main control MCU circuit detects whether the charging power supply supports a fast charging protocol, if not, the main control MCU circuit enters S4, and if yes, the main control MCU circuit enters S5;
s4, the main control MCU circuit opens the charging control circuit and the switching control circuit to enable the switching control circuit to be in a D+/D-pin conducting state, and S41 is entered;
s41, the main control MCU circuit judges whether the charging power supply is powered off, if yes, the step S1 is returned, and if no, the step S41 is continued;
s5, the main control MCU circuit opens the charging control circuit and the switching control circuit, and stores corresponding quick charging protocol information;
s6, the main control MCU circuit detects whether the Type-C male head is connected with the power receiving equipment, if yes, the S7 is entered, and if not, the S6 is continued;
s7, the main control MCU circuit monitors through the current and voltage sampling circuit or/and the D+D-signal to judge whether the power receiving equipment enters a quick charge state, if so, the main control MCU circuit enters S8, and if not, the main control MCU circuit enters S9;
s8, the main control MCU circuit detects whether the powered device is removed, if so, the S6 is returned, and if not, the S8 is continued;
s9, the main control MCU circuit turns off the charging control circuit and the switching control circuit, and sends a PD information packet to the power receiving equipment through the CC line;
s10, the main control MCU circuit judges whether the powered device supports PD fast charging, if yes, the S11 is entered, and if no, the S8 is returned;
s11, the main control MCU circuit controls the charging power supply to charge according to the requirements of the powered equipment;
s12, the main control MCU circuit detects whether the charging power supply is removed, if so, the S1 is returned, and if not, the S13 is entered;
s13, the main control MCU circuit detects whether the powered device is removed, if yes, the S6 is returned, and if not, the S11 is returned.
The invention also provides ase:Sub>A charging method for the full-compatible charging datase:Sub>A line from the USB-A port to the Type-C port, which comprises the following steps:
s21, accessing a charging power supply, and powering up a full-compatible conversion module;
s22, the main control MCU circuit opens the charging control circuit and the switching control circuit;
s23, the main control MCU circuit detects whether the Type-C male head is connected with the power receiving equipment, if yes, the S24 is entered, and if not, the S23 is continued;
s24, the main control MCU circuit monitors through a current and voltage sampling circuit or/and a D+D-signal to judge whether the power receiving equipment enters a quick charge state, if so, the main control MCU circuit enters S25, and if not, the main control MCU circuit enters S26;
s25, the main control MCU circuit detects whether the powered device is removed, if so, the S23 is returned, and if not, the S25 is continued;
s26, the main control MCU circuit turns off the charging control circuit and the switching control circuit;
s27, the main control MCU circuit detects whether the charging power supply supports a fast charging protocol, if not, the main control MCU circuit enters S28, and if yes, the main control MCU circuit enters S29;
s28, the main control MCU circuit opens the charging control circuit and the switching control circuit, and enters a normal charging mode or waits for the power-off of the module;
s29, the main control MCU circuit stores corresponding quick charge protocol information, and the main control MCU circuit sends a PD information packet to the power receiving equipment through a CC line;
s210, the main control MCU circuit judges whether the powered device supports PD fast charging, if yes, the step S211 is entered, and if no, the step S28 is returned;
s211, controlling a charging power supply by a main control MCU circuit to charge according to the requirements of powered equipment;
s212, the main control MCU circuit detects whether the charging power supply is removed, if so, the S21 is returned, and if not, the S213 is entered;
s213, the main control MCU circuit detects whether the powered device is removed, if yes, the process returns to S26, and if not, the process returns to S211.
The invention adopts the main control MCU circuit, wherein the main control MCU circuit comprises: the LDO circuit is used for providing power for the main control MCU circuit and the switching control circuit; the charging power supply charging protocol communication circuit is used for communicating with the charging power supply, confirming the charging protocol applicable to the charging circuit and storing the charging protocol; the PD protocol communication circuit of the power receiving equipment is used for sending a PD protocol packet to the power receiving equipment and responding to the reply information of the power receiving equipment; the current and voltage sampling circuit is used for collecting the output current and the output voltage of the charging power supply and providing the output current and the output voltage to the main control MCU circuit; the switching control circuit is controlled by the main control MCU circuit and is switched between the D+/D-pin and the voltage dividing circuit; the charging control switch circuit is controlled by the main control MCU circuit to switch on or off the charging circuit, so that the charging control switch circuit has the advantages that when the charging power supply and the power receiving equipment are original, the charging control switch circuit can charge with original maximum charging power, and when the charging power supply and the power receiving equipment are non-original, the charging control switch circuit can charge with the charging power allowed by the PD fast protocol; in addition, the invention has the advantages of being fully compatible with various charging source and receiving equipment by two different charging methods.
Drawings
FIG. 1 is a block diagram of one embodiment of the present invention.
Fig. 2 is a schematic circuit schematic diagram of the embodiment shown in fig. 1.
Fig. 3 is a block diagram of the first method of the present invention.
Fig. 4 is a block diagram of a second method of the present invention.
Detailed Description
Referring to fig. 1 and 2, fig. 1 and 2 disclose ase:Sub>A full-compatible conversion module from ase:Sub>A USB-ase:Sub>A port to ase:Sub>A Type-C port, including:
the main control MCU circuit 1, wherein the main control MCU circuit 1 comprises:
the LDO circuit is used for providing power for the main control MCU circuit 1 and the switching control circuits 6 and 7;
the charging power supply charging protocol communication circuit is used for communicating with the charging power supply, confirming the charging protocol applicable to the charging circuit and storing the charging protocol;
the PD protocol communication circuit of the power receiving equipment is used for sending a PD protocol packet to the power receiving equipment and responding to the reply information of the power receiving equipment; the method comprises the steps of,
the current and voltage sampling circuit 5 is used for collecting the output current and the output voltage of the charging power supply and providing the output current and the output voltage to the main control MCU circuit 1;
the switching control circuits 6 and 7 are controlled by the main control MCU circuit 1 to switch between the D+/D-pin and the voltage dividing circuit 8;
the charging control switch circuit 4 is controlled by the main control MCU circuit 1 to turn on or off the charging circuit.
Specifically, referring to fig. 2, the fully compatible conversion module includes a main control MCU circuit 1, where the main control MCU circuit 1 may adopt a chip with a model FM8PD871LV manufactured by taiwan, a far-field technology limited company, and a 2 nd pin of the main control MCU circuit 1 is connected to a 2 nd pin of a charging control switch circuit 4 (in this embodiment, the charging control switch circuit 4 is a PMOS tube); the pin 0 of the main control MCU circuit 1 is connected with the pin 2 of the charging control switch circuit 4 after passing through the first capacitor C1; the 19 th pin of the main control MCU circuit 1 is connected with the 2 nd pin of the charging control switch circuit 4 (used for collecting voltage); the 4 pin of the main control MCU circuit 1 is connected with the Gate pin of the electric control switch circuit 4 through a fourth resistor R4; the pin 15 and the pin 14 of the main control MCU circuit 1 are respectively connected with two ends of the third resistor R3 and are used for collecting current; the 12 pin (EN pin) of the main control MCU circuit 1 is respectively connected with the 6 th pin (SEL pin) of the first switching control circuit 6 and the second switching control circuit 7; the voltage dividing circuit 8 comprises a first resistor R1 and a second resistor R2, one end of the first resistor R1 is connected with a VDD pin of the main control MCU circuit 1, the other end of the first resistor R1 is connected with one end of the second resistor R2, and the other end of the second resistor R2 is grounded; the common terminal a (typically 2.7V voltage) of the first resistor R1 and the second resistor R2 is connected to the 3 rd pin (CHO pin) of the switching control circuit.
Preferably, the switching control circuits 6 and 7 are single-pole double-throw analog circuit chips, and the switching control circuits 6 and 7 can be common chips in the market, such as RS2057XH chips manufactured by Shenzhen Hongshen core electronic limited company.
The invention also provides ase:Sub>A full-compatible charging datase:Sub>A line from the USB-A port to the Type-C port, which comprises ase:Sub>A USB-A male head 2 and ase:Sub>A Type-C male head 3, wherein ase:Sub>A full-compatible conversion module is arranged between the USB-A male head 2 and the Type-C male head 3, and is the full-compatible conversion module from the USB-A port to the Type-C port.
Specifically, referring to fig. 2, the full-compatible charging datase:Sub>A line from the usb-ase:Sub>A port to the Type-C port includes ase:Sub>A main control MCU circuit 1, the main control MCU circuit 1 may be ase:Sub>A chip with ase:Sub>A model FM8PD871LV manufactured by the taiwan of the far-reaching science and technology, and the 2 nd pin of the main control MCU circuit 1 is connected to the 2 nd pin of ase:Sub>A charging control switch circuit 4 (in this embodiment, the charging control switch circuit 4 is ase:Sub>A PMOS tube); the pin 0 of the main control MCU circuit 1 is connected with the pin 2 of the charging control switch circuit 4 after passing through the first capacitor C1; the 19 th pin of the main control MCU circuit 1 is connected with the 2 nd pin of the charging control switch circuit 4 (used for collecting voltage); the 2 nd pin of the electric control switch circuit 4 is connected with the 1 pin of the USB-A male head; the 3 rd pin of the electric control switch circuit 4 is connected with the VBUS pin of the Type-C male head; the 4 pin of the main control MCU circuit 1 is connected with the Gate pin of the electric control switch circuit 4 through a fourth resistor R4; the pin 15 and the pin 14 of the main control MCU circuit 1 are respectively connected with two ends of the third resistor R3 and are used for collecting current; the 9 pins and the 8 pins of the main control MCU circuit 1 are respectively connected with the 2 pins (D-) and the 3 pins (D+) of the USB-A male head; the 10 pins and the 11 pins of the main control MCU circuit 1 are respectively connected with the B5 pin and the A5 pin of the Type-C male head; the A6 pin and the A7 pin of the Type-C male head are respectively connected with the 1 st pin (CHI pin) of the first switching control circuit 6 and the second switching control circuit 7; the 1 st pin (CHI pin) of the first switching control circuit 6 and the second switching control circuit 7 are respectively connected with the 3 rd pin and the 2 nd pin of the USB-A male head; the 12 pin (EN pin) of the main control MCU circuit 1 is respectively connected with the 6 th pin (SEL pin) of the first switching control circuit 6 and the second switching control circuit 7; the voltage dividing circuit 8 comprises a first resistor R1 and a second resistor R2, one end of the first resistor R1 is connected with a VDD pin of the main control MCU circuit 1, the other end of the first resistor R1 is connected with one end of the second resistor R2, and the other end of the second resistor R2 is grounded; the common terminal a (typically 2.7V voltage) of the first resistor R1 and the second resistor R2 is connected to the 3 rd pin (CHO pin) of the switching control circuit.
Preferably, the USB-ase:Sub>A port-to-Type-C port full-compatible conversion module and the Type-C male head 3 are configured as an integral structure, or the USB-ase:Sub>A port-to-Type-C port full-compatible conversion module and the USB-ase:Sub>A male head 2 are configured as an integral structure.
Preferably, the full-compatible conversion module from the USB-A port to the Type-C port is arranged in ase:Sub>A wire between the USB-A male head 2 and the Type-C male head 3.
Referring to fig. 3, the first method of the present invention is as follows:
s1, POR (power on reset) are connected to a charging power supply, and a full-compatible conversion module is electrified;
s2, the main control MCU circuit 1 turns off the charge control circuit 4, (at this time, gate=1) and the switching control circuit, including the first switching control circuit 6 and the second switching control circuit 7, the enable of the 6 th pin of the first switching control circuit 6 and the second switching control circuit 7 is 0, i.e. en=0;
s3, the main control MCU circuit 1 detects whether the charging power supply supports a quick charging protocol (specifically, the charging protocol enumeration is carried out, and the quick charging protocol supported by the charging power supply is detected), if not, the S4 is entered, and if yes, the S5 is entered; the charging power supply can be a power supply adapter or an electric appliance for charging, such as a portable computer;
s4, the main control MCU circuit 1 opens the charging control circuit 4, (gate=0) and the switching control circuits 6 and 7, (EN=1), so that the switching control circuit is in a D+/D-pin conducting state, and the process goes to S41;
s41, the main control MCU circuit 1 judges whether the charging power supply is powered off, if yes, the step S1 is returned, and if no, the step S41 is continued;
s5, the main control MCU circuit 1 opens the charging control circuit 4 and the switching control circuits 6 and 7, and stores corresponding quick charging protocol information; the fast-charging protocol supported in the present invention includes, but is not limited to, QC2.0, QC3.0; FCP and SCP for hua, VOOC and SuperVOOC, PPS, BC 1.2.1.2 for OPPO, etc.;
s6, the main control MCU circuit 1 detects whether the Type-C male head 3 is connected with the powered device (at the moment, pins CC1 and CC2 of the main control MCU circuit 1 are enabled to be pulled up, whether the power device is connected with the powered device or not is detected to be pulled down, if yes, S7 is carried out, and if not, S6 is continued;
s7, the main control MCU circuit 1 judges whether the power receiving equipment enters a fast charging state through a current (14/15 pins of the main control MCU circuit 1, ISP/ISN circuit differential sampling) voltage (19 pins of the main control MCU circuit 1) sampling circuit or/and D+D-signal monitoring (8 pins of the main control MCU circuit 1), if yes, the power receiving equipment enters S8, and if no, the power receiving equipment enters S9;
s8, the main control MCU circuit 1 detects whether the powered device is removed, if so, the S6 is returned, and if not, the S8 is continued;
s9, the main control MCU circuit 1 turns off the charging control circuit 4, (gate=1) and the switching control circuits 6, 7, (en=0), and the main control MCU circuit 1 sends a PD packet to the power receiving device through the CC line (including the CC1 and CC2 pins);
s10, the main control MCU circuit 1 judges whether the powered device supports PD fast charging (namely, PD protocol communication is carried out), if yes, the S11 is entered, and if no, the S8 is returned;
s11, a main control MCU circuit 1 controls a charging power supply to charge according to the requirements of powered equipment; the power receiving equipment sends a charging voltage and current parameter request through a CC pin (comprising CC1 and CC2 pins), and the main control MCU circuit 1 controls the charging power supply to change the charging voltage through a D-/D+ signal line after receiving the request; to accommodate rapid charging;
s12, the main control MCU circuit 1 detects whether the charging power supply is removed, if so, the S1 is returned, and if not, the S13 is entered;
s13, the main control MCU circuit 1 detects whether the powered device is removed, if so, the process returns to S6, and if not, the process returns to S11.
Referring to fig. 4, the second method of the present invention is as follows:
s21, POR (power on reset) are connected to a charging power supply, and the full-compatible conversion module is electrified;
s22, the main control MCU circuit 1 turns on the charge control circuit 4, (gate=0) and the switching control circuits 6, 7, (en=1);
s23, the main control MCU circuit 1 detects whether the Type-C male head 3 is connected with the powered device (at the moment, the main control MCU circuits 1CC1 and CC2 enable pull-up, detect whether the voltage is pulled down, if the voltage is pulled down, the power device is connected), and if the voltage is not pulled down, the process goes to S24, and if the voltage is not pulled down, the process continues to S23;
s24, the main control MCU circuit 1 judges whether the power receiving equipment enters a fast charging state or not through a current (14/15 pins of the main control MCU circuit, an ISP/ISN circuit differential sampling current) voltage (19 pins of the main control MCU circuit sampling voltage) or/and D+D-signal monitoring (8 pins of the main control MCU circuit 1), if yes, the power receiving equipment enters S25, and if no, the power receiving equipment enters S26;
s25, the main control MCU circuit 1 detects whether the powered device is removed, if yes, the S23 is returned, and if not, the S25 is continued;
s26, the main control MCU circuit 1 turns off the charge control circuit 4, (gate=1) and the switching control circuits 6, 7, (en=0);
s27, the main control MCU circuit 1 detects whether the charging power supply supports a quick charging protocol (carries out charging protocol enumeration, detects the quick charging protocol supported by the charging power supply), if not, the main control MCU circuit enters S28, and if yes, the main control MCU circuit enters S29;
s28, the main control MCU circuit 1 turns on the charge control circuit 4, (gate=0) and the switch control circuits 6, 7, (en=1), and enters the normal charge mode or waits for the power-off of the module;
s29, the main control MCU circuit 1 stores corresponding quick charge protocol information (the quick charge protocol in the invention comprises but is not limited to QC2.0, QC3.0, huacheng FCP and SCP, OPPO VOOC and SuperVOOC, PPS, BC1.2 and the like), and the main control MCU circuit 1 sends PD information packets to the powered device through a CC line (comprising CC1 and CC 2);
s210, the main control MCU circuit 1 judges whether the powered device supports PD fast charging (namely, PD protocol communication is carried out), if yes, the S211 is entered, and if no, the S28 is returned;
s211, the main control MCU circuit 1 controls a charging power supply to charge according to the requirements of the powered equipment;
s212, the main control MCU circuit 1 detects whether the charging power supply is removed, if so, the process returns to S21, and if not, the process enters S213;
s213, the main control MCU circuit 1 detects whether the power receiving device is removed, and if so, returns to S26, and if not, returns to S211.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (10)

1. The utility model provides ase:Sub>A full compatible conversion module of USB-A mouth change Type-C mouth which characterized in that includes:
a master MCU circuit (1), wherein the master MCU circuit (1) comprises:
the LDO circuit is used for providing power for the main control MCU circuit (1) and the switching control circuits (6 and 7);
the charging power supply charging protocol communication circuit is used for communicating with the charging power supply, confirming the charging protocol applicable to the charging circuit and storing the charging protocol;
the PD protocol communication circuit of the power receiving equipment is used for sending a PD protocol packet to the power receiving equipment and responding to the reply information of the power receiving equipment; the method comprises the steps of,
the current and voltage sampling circuit (5) is used for collecting the output current and the output voltage of the charging power supply and providing the output current and the output voltage for the main control MCU circuit (1);
a switching control circuit (6, 7) controlled by the main control MCU circuit (1) to switch between the D+/D-pin and the voltage dividing circuit (8);
and the charging control switch circuit (4) is controlled by the main control MCU circuit (1) to turn on or off the charging circuit.
2. The USB-ase:Sub>A port to Type-C port full-compatible conversion module of claim 1, wherein: the switching control circuit is a single-pole double-throw analog circuit chip.
3. The USB-ase:Sub>A port to Type-C port full-compatible conversion module according to claim 1 or 2, wherein: the charging control switch circuit (4) is a PMOS tube.
4. The USB-ase:Sub>A port to Type-C port full-compatible conversion module according to claim 1 or 2, wherein: the main control MCU circuit (1) adopts an FM8PD871LV chip.
5. The USB-ase:Sub>A port to Type-C port full-compatible conversion module according to claim 1 or 2, wherein: the voltage dividing circuit (8) comprises a first resistor (R1) and a second resistor (R2), one end of the first resistor (R1) is connected with a VDD pin of the main control MCU circuit (1), the other end of the first resistor (R1) is connected with one end of the second resistor (R2), and the other end of the second resistor (R2) is grounded; and a common end (A) of the first resistor (R1) and the second resistor (R2) is connected with a CHO pin of the switching control circuit.
6. The utility model provides ase:Sub>A full compatible datase:Sub>A line that charges that USB-A mouth changes Type-C mouth, includes public head (2) of USB-A, the public head (3) of Type-C be equipped with full compatible conversion module, its characterized in that between public head (2) of USB-A, the public head (3) of Type-C: the full-compatible conversion module is the full-compatible conversion module from the USB-A port to the Type-C port as claimed in any one of claims 1 to 4.
7. The USB-ase:Sub>A port to Type-C port fully compatible charging datase:Sub>A line of claim 6, wherein: the USB-A port-to-Type-C port full-compatible conversion module and the Type-C male head (3) are arranged into an integrated structure, or the USB-A port-to-Type-C port full-compatible conversion module and the USB-A male head (2) are arranged into an integrated structure.
8. The USB-ase:Sub>A port to Type-C port fully compatible charging datase:Sub>A line of claim 6, wherein: the full-compatible conversion module from the USB-A port to the Type-C port is arranged in ase:Sub>A lead between the USB-A male head (2) and the Type-C male head (3).
9. The charging method of the full-compatible charging datase:Sub>A line from the USB-A port to the Type-C port is characterized by comprising the following steps of:
s1, accessing a charging power supply, and powering up a full-compatible conversion module;
s2, the main control MCU circuit turns off the charging control circuit and the switching control circuit;
s3, the main control MCU circuit detects whether the charging power supply supports a fast charging protocol, if not, the main control MCU circuit enters S4, and if yes, the main control MCU circuit enters S5;
s4, the main control MCU circuit opens the charging control circuit and the switching control circuit to enable the switching control circuit to be in a D+/D-pin conducting state, and S41 is entered;
s41, the main control MCU circuit judges whether the charging power supply is powered off, if yes, the step S1 is returned, and if no, the step S41 is continued;
s5, the main control MCU circuit opens the charging control circuit and the switching control circuit, and stores corresponding quick charging protocol information;
s6, the main control MCU circuit detects whether the Type-C male head is connected with the power receiving equipment, if yes, the S7 is entered, and if not, the S6 is continued;
s7, the main control MCU circuit monitors through the current and voltage sampling circuit or/and the D+D-signal to judge whether the power receiving equipment enters a quick charge state, if so, the main control MCU circuit enters S8, and if not, the main control MCU circuit enters S9;
s8, the main control MCU circuit detects whether the powered device is removed, if so, the S6 is returned, and if not, the S8 is continued;
s9, the main control MCU circuit turns off the charging control circuit and the switching control circuit, and sends a PD information packet to the power receiving equipment through the CC line;
s10, the main control MCU circuit judges whether the powered device supports PD fast charging, if yes, the S11 is entered, and if no, the S8 is returned;
s11, the main control MCU circuit controls the charging power supply to charge according to the requirements of the powered equipment;
s12, the main control MCU circuit detects whether the charging power supply is removed, if so, the S1 is returned, and if not, the S13 is entered;
s13, the main control MCU circuit detects whether the powered device is removed, if yes, the S6 is returned, and if not, the S11 is returned.
10. The charging method of the full-compatible charging datase:Sub>A line from the USB-A port to the Type-C port is characterized by comprising the following steps of:
s21, accessing a charging power supply, and powering up a full-compatible conversion module;
s22, the main control MCU circuit opens the charging control circuit and the switching control circuit;
s23, the main control MCU circuit detects whether the Type-C male head is connected with the power receiving equipment, if yes, the S24 is entered, and if not, the S23 is continued;
s24, the main control MCU circuit monitors through a current and voltage sampling circuit or/and a D+D-signal to judge whether the power receiving equipment enters a quick charge state, if so, the main control MCU circuit enters S25, and if not, the main control MCU circuit enters S26;
s25, the main control MCU circuit detects whether the powered device is removed, if so, the S23 is returned, and if not, the S25 is continued;
s26, the main control MCU circuit turns off the charging control circuit and the switching control circuit;
s27, the main control MCU circuit detects whether the charging power supply supports a fast charging protocol, if not, the main control MCU circuit enters S28, and if yes, the main control MCU circuit enters S29;
s28, the main control MCU circuit opens the charging control circuit and the switching control circuit, and enters a normal charging mode or waits for the power-off of the module;
s29, the main control MCU circuit stores corresponding quick charge protocol information, and the main control MCU circuit sends a PD information packet to the power receiving equipment through a CC line;
s210, the main control MCU circuit judges whether the powered device supports PD fast charging, if yes, the step S211 is entered, and if no, the step S28 is returned;
s211, controlling a charging power supply by a main control MCU circuit to charge according to the requirements of powered equipment;
s212, the main control MCU circuit detects whether the charging power supply is removed, if so, the S21 is returned, and if not, the S213 is entered;
s213, the main control MCU circuit detects whether the powered device is removed, if yes, the process returns to S26, and if not, the process returns to S211.
CN202311351786.7A 2023-10-19 2023-10-19 Full-compatible conversion module for converting USB-A port into Type-C port, charging datase:Sub>A line and charging method Pending CN117375168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311351786.7A CN117375168A (en) 2023-10-19 2023-10-19 Full-compatible conversion module for converting USB-A port into Type-C port, charging datase:Sub>A line and charging method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311351786.7A CN117375168A (en) 2023-10-19 2023-10-19 Full-compatible conversion module for converting USB-A port into Type-C port, charging datase:Sub>A line and charging method

Publications (1)

Publication Number Publication Date
CN117375168A true CN117375168A (en) 2024-01-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311351786.7A Pending CN117375168A (en) 2023-10-19 2023-10-19 Full-compatible conversion module for converting USB-A port into Type-C port, charging datase:Sub>A line and charging method

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