CN112564232B - Mobile phone data transmission and power taking circuit and method - Google Patents

Mobile phone data transmission and power taking circuit and method Download PDF

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Publication number
CN112564232B
CN112564232B CN202011463529.9A CN202011463529A CN112564232B CN 112564232 B CN112564232 B CN 112564232B CN 202011463529 A CN202011463529 A CN 202011463529A CN 112564232 B CN112564232 B CN 112564232B
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resistor
field effect
module
data transmission
mobile phone
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CN112564232A (en
Inventor
杨松昊
严开云
钟景科
张凯华
胡伟
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Guangdong Seneasy Intelligent Technology Co ltd
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Guangdong Seneasy Intelligent Technology Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4004—Coupling between buses
    • G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling
    • 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
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • 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
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Telephone Function (AREA)

Abstract

The invention discloses a mobile phone data transmission and power taking circuit which comprises an MCU module, a detection module, a switch module and a data transmission module, wherein the signal input end of the detection module is connected with the signal output end of the switch module; in the mobile phone data transmission and power taking circuit, when the switch module is in a closed state, the male seat and the female seat are conducted through the data transmission module, and the peripheral equipment directly charges the mobile phone or the mobile phone supplies power to the peripheral equipment; when the switch module is in an on state, the data transmission module is disconnected, the detection module detects the peripheral equipment and sends a signal to the MCU module, the MCU module controls the peripheral equipment to charge the mobile phone, and the charging of the mobile phone, the power supply of the mobile phone to the peripheral equipment and the data transmission can be completed by only one circuit.

Description

Mobile phone data transmission and power taking circuit and method
Technical Field
The invention relates to the technical field of mobile phone data transmission, in particular to a mobile phone data transmission and power taking circuit and a mobile phone data transmission and power taking method.
Background
At present, mobile phones have already entered thousands of households, and the main function of the mobile phones is communication, so that the communication of people is facilitated. The existing smart phone also has the advantages of entertainment, navigation, shopping, money transfer and water and electricity fee payment, and is an almost inexhaustible tool for facilitating our lives. The smart phone is used as a platform now, and is a carrier of app software which is convenient for our life.
With the rapid development of electronic technology, a plurality of high-end smart phones adopt TYPE C interfaces, so that rapid charging and rapid data transmission are realized, and the working efficiency of people is greatly improved; but present cell-phone all adopts a TYPE C interface, will change different data lines when carrying out data transmission or charging, causes the wearing and tearing of TYPE C interface easily, needs a plurality of data lines to carry unchangeably, also causes losing of data line easily.
Disclosure of Invention
Therefore, it is necessary to provide a mobile phone data transmission and power-taking circuit and method with data transmission and charging functions.
The utility model provides a cell-phone data transmission with get electric circuit, includes MCU module, detection module, switch module, data transmission module, detection module's signal input part with switch module's signal output part is connected, detection module's signal output part with MCU module's signal input part is connected, MCU module's signal output part with switch module's signal input part is connected, data transmission module's both ends respectively with detection module's both ends are connected.
In one embodiment, the detection module comprises a detection unit U5, a male socket, a female socket, a field effect transistor Q3 and a field effect transistor Q15, a pin CC1 of the female socket is connected with a second port of the field effect transistor Q3, a third port of the field effect transistor Q3 is connected with a pin CC1 of the detection unit U5, a pin CC2 of the female socket is connected with a second port of the field effect transistor Q15, a third port of the field effect transistor Q15 is connected with a pin CC2 of the detection unit U5, the male socket is connected with the switch module, and the male socket and the female socket are connected through a data transmission module.
In one embodiment, the switch module includes a switch S1, fets Q4, Q5, Q7, Q10, Q13, transistors Q12, Q14, resistors R18, R25, R28, R29, R30, R31, R34, R35, R36, R37, R38, R39, R54, R64, R66, R67, a third terminal of the fet Q13 is connected to one terminal of the resistor R66, one terminal of the resistor R66 is connected to the terminal 6 of the switch S1 and one terminal of the resistor R25, the other terminal of the resistor R25 is connected to the second terminal of the fet Q5, a third terminal of the fet Q5 is connected to one terminals of the resistors R34, R54, the other terminal of the resistor R34 is connected to the third terminal of the fet Q7, the second terminal of the fet Q7 is connected to one terminal of the resistor R36, the first end of the resistor is connected with the collector of the transistor Q12, the base of the transistor Q12 is connected with one end of the resistor R64, the resistor R18 is connected with one end of the resistor R64, the first end of the field-effect tube Q13 is respectively connected with the collector of the transistor Q14 and one end of the resistor R67, the base of the transistor Q14 is connected with one end of the resistor R38, the resistor R39 is connected with the resistor R38 in parallel, the first pin of the switch S1 is respectively connected with one ends of the resistor R28 and the resistor R35, the other end of the resistor R28 is connected with the third end of the field-effect tube Q10, the first end of the field-effect tube Q10 is connected with one end of the resistor R30, the other end of the resistor R35 is respectively connected with the first end of the field-effect tube Q4 and one end of the resistor R37, and the third end of the field-effect tube Q4 is respectively connected with one ends of the resistor R29 and the resistor R31.
In one embodiment, the data transmission module comprises a field effect transistor U3 and a field effect transistor U4, the gate of the field effect transistor U3 is connected with the gate of the field effect transistor U4, and the source of the field effect transistor U3 is connected with the source of the field effect transistor U4.
In one embodiment, the chip of the detection unit U5 is a CC logic chip.
A method for transmitting data and getting electricity of a mobile phone,
s1, inserting a male seat into a mobile phone;
s2, connecting the female seat with peripheral equipment;
s3, judging whether the switch module is in a closed state or not;
s4, if the connection is successful, the data transmission module is started, and the type of the connected peripheral equipment is judged by the mobile phone;
and S5, the mobile phone and the peripheral equipment directly carry out charging or data transmission through the data transmission module.
The mobile phone data transmission and power taking circuit is formed by the cooperation of the MCU module, the detection module, the switch module and the data transmission module, a male seat of the detection module is inserted into a mobile phone, a female seat of the detection module is connected with peripheral equipment, when the switch module is in a closed state, the male seat and the female seat are conducted through the data transmission module, and the peripheral equipment directly charges the mobile phone or the mobile phone supplies power to the peripheral equipment; when the switch module is in an open state, the data transmission module is disconnected, the detection module detects peripheral equipment and sends a signal to the MCU module, the MCU module controls the peripheral equipment to charge the mobile phone or the mobile phone directly supplies power to the peripheral equipment, the charging of the mobile phone, the power supply of the mobile phone to the peripheral equipment and the data transmission can be completed by only one circuit, the peripheral equipment does not need to be frequently switched, the abrasion of the TYPE C interface is reduced, and the transmission and charging efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a data transmission and power taking circuit of a mobile phone according to an embodiment of the present invention;
fig. 2 is a circuit diagram of an MCU module of the data transmission and power taking circuit of the mobile phone of fig. 1 according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a detection module of the data transmission and power-taking circuit of the mobile phone in fig. 1 according to an embodiment of the invention;
fig. 4 is a circuit diagram of a switch module of the mobile phone data transmission and power-taking circuit in fig. 1 according to an embodiment of the invention;
fig. 5 is a circuit diagram of a data transmission module of the data transmission and power-taking circuit of the mobile phone in fig. 1 according to an embodiment of the invention;
fig. 6 is a circuit diagram of a voltage conversion module of the data transmission and power-taking circuit of the mobile phone in fig. 1 according to an embodiment of the invention;
fig. 7 is a circuit diagram of an indicator light module of the mobile phone data transmission and power-taking circuit in fig. 1 according to an embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, a mobile phone data transmission and power taking circuit comprises an MCU module 100, a detection module 200, a switch module 300 and a data transmission module 400, wherein a signal input end of the detection module 200 is connected with a signal output end of the switch module 300, a signal output end of the detection module 200 is connected with a signal input end of the MCU module 100, a signal output end of the MCU module 100 is connected with a signal input end of the switch module 300, and two ends of the data transmission module 400 are respectively connected with two ends of the detection module 200.
As shown in fig. 2 and fig. 3, in one embodiment, the detection module 200 includes a detection unit U5, a male socket, a female socket, a field effect transistor Q3, and a field effect transistor Q15, a CC1 pin of the female socket is connected to a second port of the field effect transistor Q3, a third port of the field effect transistor Q3 is connected to a CC1 pin of the detection unit U5, a CC2 pin of the female socket is connected to a second port of the field effect transistor Q15, a third port of the field effect transistor Q15 is connected to a CC2 pin of the detection unit U5, the male socket is connected to the switch module, and the male socket and the female socket are connected through a data transmission module.
As shown in fig. 4, in one embodiment, the switch module 300 includes a switch S1, fets Q4, Q5, Q7, Q10, Q13, transistors Q12, Q14, resistors R18, R25, R28, R29, R30, R31, R34, R35, R36, R37, R38, R39, R54, R64, R66, R67, a third terminal of the fet Q13 is connected to one terminal of the resistor R66, one terminal of the resistor R66 is connected to the terminal 6 of the resistor S1 and one terminal of the resistor R25, the other terminal of the resistor R25 is connected to the second terminal of the fet Q5, a third terminal of the fet Q5 is connected to one terminal of the resistors R34 and R54, the other terminal of the resistor R34 is connected to the third terminal of the fet Q7, the second terminal of the resistor Q7 is connected to one terminal of the resistor R36, the first terminal is connected to the collector of the transistor Q12, the base of the transistor Q12 is connected to one terminal of the resistor R64, the resistor R18 is connected to the third terminal of the resistor R13, the first terminal of the resistor R38 is connected to one terminal of the resistor R13, and the resistor R35 are connected to the base of the first terminal of the resistor R13, and the resistor R35 are connected to the first terminal of the resistor R35, the resistor R13 are connected to the base of the resistor Q13, the resistor R13, and the first terminal of the resistor R35 are connected to the resistor R13, the first terminal of the resistor R13, the resistor R35 are connected to the first terminal of the resistor R35, and the resistor R35, the resistor R13 are connected to the first terminal of the resistor R13, and the resistor R13, the resistor R35 are connected in parallel.
As shown in fig. 5, in one embodiment, the data transmission module 400 includes a field effect transistor U3 and a field effect transistor U4, a gate of the field effect transistor U3 is connected to a gate of the field effect transistor U4, and a source of the field effect transistor U3 is connected to a source of the field effect transistor U4.
In one embodiment, the chip of the detection unit U5 is a CC logic chip.
The public seat is inserted into the mobile phone, the female seat is connected into peripheral equipment, the V _ BUS _ IN pin of the data transmission module 400 is connected with the VBUS pin of the female seat, and the V _ BUS _ OUT pin is connected with the VBUS pin of the public seat.
1. When the switch module 300 is in an OFF state, the external interface USB female socket CC1/CC2 and the mobile phone working interface CC1/CC2 are in a direct connection state, and the mobile phone automatically identifies externally inserted equipment.
1.1, when a charger is inserted into the female socket, the field effect tube U3 is conducted by default, VBUS is at a high level, the field effect tube Q16 is conducted to GND, and the field effect tube U4 is conducted to charge the mobile phone;
1.2, when an OTG U disk is inserted, (an OTG patch cord CC1/CC2 is to be pulled down by a 5.1K resistor), 5V voltage is output outwards by the mobile phone, and the mobile phone reads the data of the U disk;
1.3 When the digital earphone is inserted, 5V is output by the mobile phone to the outside (5.1K resistance to be pulled down by the digital earphone patch cord CC1/CC 2).
The pins CC1_ P2 and CC2_ P2 of the switch S1 are connected with the pins CC1 and CC2 of the male seat, and the pins CC1_ P1 and CC2_ P1 of the switch S1 are connected with the pins CC1 and CC2 of the female seat.
2. When the switch module 300 is in an ON state and the OFF state is toggled to the ON state, the CC2_ P2 and the resistor R25 are connected to GND, and at this time, the mobile phone supplies power to the outside to supply power to each module. At the moment, the external interface CC1/CC2 is disconnected with the CC1/CC2 of the mobile phone, when all devices inserted from the outside are handed to a logic chip of a detection unit U5 for identification, and in an ON state, the field effect tube Q15 and the field effect tube Q3 are conducted.
2.1 When the switch module 300 is in an ON state, the female socket is inserted into the charger, the detection unit U5 sends a signal to the MCU module 100 after recognizing the signal, and after the MCU module 100 triggers an interrupt signal, the fet Q7 is turned off to exit the OTG mode, and then the mobile phone is charged.
2.2 When the ON state female socket is inserted into the usb disk, the detection unit U5 recognizes that the OTG device is inserted, and performs data read-write transmission to the mobile phone by the TX/RX.
2.3 when the ON state mother socket is inserted into the earphone, the detection unit U5 recognizes that the OTG device is inserted, and the TX/RX performs data reading and writing and transmits the data to the mobile phone.
Thus, the mobile phone data transmission and power taking circuit is formed by matching the MCU module 100, the detection module 200, the switch module 300 and the data transmission module 400, a male seat of the detection module 200 is inserted into a mobile phone, a female seat is connected to peripheral equipment, when the switch module 300 is in a closed state, the male seat and the female seat are conducted through the data transmission module, and the peripheral equipment directly charges the mobile phone or the mobile phone supplies power to the peripheral equipment; when the switch module 300 is in an on state, the data transmission module 400 is disconnected, the detection module 200 detects the peripheral device and sends a signal to the MCU module 100, the MCU module 100 controls the peripheral device to charge the mobile phone or the mobile phone directly supplies power to the peripheral device, and only one circuit is needed to complete the charging of the mobile phone, the power supply of the mobile phone to the peripheral device and the data transmission, so that the peripheral device does not need to be frequently switched, the wear of the TYPE C interface is reduced, and the transmission and charging efficiency is improved.
As shown in fig. 6, a voltage conversion module 500 is further included.
As shown in fig. 7, further, an indicator light module 600 is further included.
A method for transmitting data and getting electricity of a mobile phone,
s1, inserting a male seat into a mobile phone;
s2, connecting the female seat with peripheral equipment;
s3, judging whether the switch module 300 is in a closed state;
s4, if yes, the data transmission module 400 is started, and the type of the connected peripheral equipment is judged by the mobile phone;
and S5, the mobile phone and the peripheral equipment directly carry out charging or data transmission through the data transmission module.
Further, when the switch module 300 is in the on state, the data transmission module 400 is turned off, the detection unit U5 identifies the peripheral device and then sends a signal to the MCU module 100, and the MCU module 100 determines the type of the peripheral device connected to the mother board.
2.1 when the female seat is connected to the charger, after the MCU module 100 triggers an interrupt signal, the field effect transistor Q7 is disconnected, the OTG mode is exited, and then the mobile phone is charged.
2.2 When the ON state female socket is inserted into the usb disk, the detection unit U5 recognizes that the OTG device is inserted, and performs data read-write transmission to the mobile phone by the TX/RX.
2.3 when the ON state mother socket is inserted into the earphone, the detection unit U5 recognizes that the OTG device is inserted, and the TX/RX performs data reading and writing and transmits the data to the mobile phone.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (3)

1. The utility model provides a cell-phone data transmission and get electric circuit which characterized in that: the device comprises an MCU module, a detection module, a switch module and a data transmission module, wherein the signal input end of the detection module is connected with the signal output end of the switch module, the signal output end of the detection module is connected with the signal input end of the MCU module, the signal output end of the MCU module is connected with the signal input end of the switch module, and two ends of the data transmission module are respectively connected with two ends of the detection module;
the switch module comprises a switch S1, field effect transistors Q4, Q5, Q7, Q10, Q13, triodes Q12, Q14, resistors R18, R25, R28, R29, R30, R31, R34, R35, R36, R37, R38, R39, R54, R64, R66 and R67, wherein the third end of the field effect transistor Q13 is connected with one end of the resistor R66, one end of the resistor R66 is respectively connected with the 6 th end of the S1 and one end of the resistor R25, the other end of the resistor R25 is connected with the second end of the field effect transistor Q5, the third end of the field effect transistor Q5 is respectively connected with one ends of the resistors R34 and R54, the other end of the resistor R34 is connected with the third end of the field effect transistor Q7, the second end of the field effect transistor Q7 is connected with one end of the resistor R36, the first end is connected with the collector of the triode Q12, the base of the triode Q12 is connected with one end of the resistor R64, the resistor R18 is connected with one end of the resistor R64, the first end of the field effect transistor Q13 is respectively connected with the collector of the triode Q14 and one end of the resistor R67, the base of the triode Q14 is connected with one end of the resistor R38, the resistor R39 is connected with the resistor R38 in parallel, the first pin of the switch S1 is respectively connected with one ends of the resistor R28 and the resistor R35, the other end of the resistor R28 is connected with the third end of the field effect transistor Q10, the first end of the field effect transistor Q10 is connected with one end of the resistor R30, the other end of the resistor R35 is respectively connected with the first end of the field effect transistor Q4 and one end of the resistor R37, and the third end of the field effect transistor Q4 is respectively connected with one ends of the resistor R29 and the resistor R31;
the detection module comprises a detection unit U5, a male seat, a female seat, a field effect tube Q3 and a field effect tube Q15, wherein a CC1 pin of the female seat is connected with a second port of the field effect tube Q3, a third port of the field effect tube Q3 is connected with a CC1 pin of the detection unit U5, a CC2 pin of the female seat is connected with a second port of the field effect tube Q15, a third port of the field effect tube Q15 is connected with a CC2 pin of the detection unit U5, the male seat is connected with the switch module, and the male seat and the female seat are connected through a data transmission module;
the data transmission module comprises a field effect tube U3 and a field effect tube U4, the grid electrode of the field effect tube U3 is connected with the grid electrode of the field effect tube U4, and the source electrode of the field effect tube U3 is connected with the source electrode of the field effect tube U4.
2. The mobile phone data transmission and power taking circuit according to claim 1, characterized in that: the chip of the detection unit U5 is a CC logic chip.
3. The method for transmitting data and getting power of the mobile phone data transmission and power getting circuit according to claim 1, characterized in that:
s1, inserting a male seat into a mobile phone;
s2, connecting the female seat with peripheral equipment;
s3, judging whether the switch module is in a closed state or not;
s4, if the connection is successful, the data transmission module is started, and the type of the connected peripheral equipment is judged by the mobile phone;
and S5, the mobile phone and the peripheral equipment directly carry out charging or data transmission through the data transmission module.
CN202011463529.9A 2020-12-14 2020-12-14 Mobile phone data transmission and power taking circuit and method Active CN112564232B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011463529.9A CN112564232B (en) 2020-12-14 2020-12-14 Mobile phone data transmission and power taking circuit and method

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Application Number Priority Date Filing Date Title
CN202011463529.9A CN112564232B (en) 2020-12-14 2020-12-14 Mobile phone data transmission and power taking circuit and method

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CN112564232B true CN112564232B (en) 2023-03-21

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101931674A (en) * 2010-09-01 2010-12-29 惠州Tcl移动通信有限公司 Method and device for sharing Micro-USB interface
CN205583303U (en) * 2016-04-24 2016-09-14 仇磊 Iphone gets electricity and data transmission adapter
CN107221983A (en) * 2017-07-06 2017-09-29 建荣半导体（深圳）有限公司 A kind of charging control circuit and audio frequency apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101931674A (en) * 2010-09-01 2010-12-29 惠州Tcl移动通信有限公司 Method and device for sharing Micro-USB interface
CN205583303U (en) * 2016-04-24 2016-09-14 仇磊 Iphone gets electricity and data transmission adapter
CN107221983A (en) * 2017-07-06 2017-09-29 建荣半导体（深圳）有限公司 A kind of charging control circuit and audio frequency apparatus

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