CN111061667A - Wire rod for realizing data transmission of any one way by one dragging of multiple wires - Google Patents
Wire rod for realizing data transmission of any one way by one dragging of multiple wires Download PDFInfo
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- 238000001514 detection method Methods 0.000 claims abstract description 44
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4072—Drivers or receivers
- G06F13/4077—Precharging or discharging
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- 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
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
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Abstract
The invention discloses a multi-wire rod for realizing any one-way data transmission, which comprises: a USB input interface for receiving input data; at least two switch control circuits are connected with the USB input interface; the switch control circuit comprises a power switch circuit and a data switch circuit; the load detection and data reading units are respectively connected with an output interface to finish the output of detection results and data reading; and the main control module is connected with each load detection and data reading unit and each switch control circuit. The power supply and data output by a branch of the wire can be turned off or on according to requirements to realize control; meanwhile, a multi-port output current detection circuit is arranged, whether each path is full of data connection, removal and charging can be judged, and the corresponding output port is closed; this function allows for multi-drop free data transfer and the choice of whether to charge or not.
Description
Technical Field
The present invention relates to a data transmission circuit, and more particularly, to a multi-path data transmission control circuit for a USB interface.
Background
The application of the existing USB interface for realizing equipment charging, data transmission and switching equipment is very wide, but the existing switching line is mostly one to two, namely, the mode of one uplink C port and two downlink A ports; or one data line is connected with three data lines, namely, one data line is connected with the uplink port C and three data lines are connected with the downlink port A, the charging mode can be switched only by accessing the equipment state of the uplink port, bidirectional charging is not supported, and data transmission is also unidirectional. To summarize, there are two main ways for data transmission and charging at present: 1) the input and the output of the wire are only one line, so that data transmission and quick charging can be realized, but the wire interface is single and a plurality of wires need to be taken out; 2) one drags many wire rods, generally can only appoint an interface to carry out data transmission, other interfaces can only charge, can not transmit data.
Disclosure of Invention
The invention provides a multi-wire rod for realizing any one-way data transmission, which comprises: a USB input interface for receiving input data; at least two switch control circuits are connected with the USB input interface; the switch control circuit comprises a power switch circuit and a data switch circuit;
at least two load detection and data reading units respectively connected with the switch control circuit, wherein the load detection and data reading units are used for current detection and data reading of corresponding line branches; the load detection and data reading unit is respectively connected with an output interface to finish the output of detection results and data reading;
the main control module is connected with each load detection and data reading unit and each switch control circuit; the main control module comprises a main control IC, the control of the output power supply and the switch is realized through the control of the main control IC, and the power supply and the data output by one branch circuit can be closed or opened according to the requirement.
Preferably, the load detection and data reading unit includes a load identification circuit for detecting insertion identification of the load and a current detection circuit; the current detection circuit is used for detecting the output current of each branch.
Preferably, the main control IC is a programmable IC main control, and realizes free control of the switch control circuit.
Preferably, the output interfaces are Type-C and MicroUSB respectively.
Another aspect of the present invention provides a method for data transmission using a multiline material, including:
step 1: a main control module, which includes the software built in the main control IC, and uses the first load identification circuit in the first load detection and data reading unit to read the branch inserted into the multi-line of the load;
step 2: a switch switching circuit connects the branched first output interface (J1) data transmission line and the output charging line, the first load is used to detect whether the data reading circuit in the data reading and reading unit is reading the first output interface (J1) to perform data transmission, if the data transmission is performed, the switch switching circuit will open both the charging circuit and the data transmission circuit, if the data transmission is not performed, only the charging circuit is opened, and the data transmission circuit is closed; and the data lines and the charging lines of other branches are closed at the moment;
and step 3: when other output interfaces (J2) are connected to the load, the master IC detects that other loads are added through second load detection circuits in second load detection and data reading units on other branches, and if it is identified in step 2 that the first output interface (J1) only has a charging function and does not perform data transmission, the charging circuits and the data transmission circuits of other output interfaces (J2) are connected; if the first output interface (J1) is detected to have data transmission in the step 2, the other output interfaces (J2) only open charging and do not carry out data transmission.
Preferably, when the data reading circuit identifies that the circuit needs to be subjected to the rapid charging protocol docking, the current docking process is automatically closed, and only the conventional power supply voltage charging is performed.
Preferably, the output ports are the Type-C and the MicroUSB respectively; after the USB wire is connected to an output port of the equipment, the power supply control circuits Q1, Q2 and Q3 of the output interface Type-C, the data transmission control circuits U1, R5 and C1, the power supply control circuits Q4, Q5 and Q6 of the output interface MicroUSB and the data output control circuits U2, R12, R14 and C4 are all closed; wherein the chips of Q1, Q2, Q3, Q4 and Q5 are PMOS/SOT-23; the Q6 chip is SS 8050/NPN/SOT-23; the U1 chip is FSA 550; the resistor R5 and the capacitor C1 are connected between the EN end of the USB-C QC and the GND in parallel; the U2 chip is FSA 550; the U3 chip is HI 7550-1; one end of the resistor R12 is connected with the EN end of the USB-B-QC, and the other end of the resistor R12 is connected with the U2 chip and the resistor R14; the resistor R14 is connected in parallel with the capacitor C4, one end of the resistor R12 is connected, and the other end of the resistor R14 is connected with GND.
Preferably, when the output interface Type-C is connected, the voltage Load-C _ DEL of R25 is pulled down by the Load, after the master control IC recognizes that the output interface Type-C is connected, the power outputs of Q1 and Q2 are opened, and meanwhile, a U1 channel is opened, and at this time, D-/D + is connected with the multimedia device and the mobile phone Load for data communication; wherein the R25 is connected with the output interface USB-C.
Preferably, when data transmission of the output port Type-C of the output interface is in progress, the output interface MicroUSB does not open the data transmission circuit controlled by U2, R12, R14 and C4, and only data transmission can be carried out by the output port Type-C; when the output interface MicroUSB is connected again, the Load-B _ DEL of the R24 resistor is pulled low, the main control IC turns on the Q4 and the Q5 to output the power supply of the output interface MicroUSB after recognizing that the output interface MicroUSB is connected, and the Type-C of the output interface and the output interface MicroUSB output a conventional power supply; wherein the R24 is connected with USB-B; one ends of the R12 and the R14 are connected with the U2, the other end of the R12 is connected with the USB-B-QC, and the other end of the R14 is connected with GND.
Preferably, when the output port Type-C of the output interface does not perform data transmission, the main control module opens a data transmission circuit controlled by U2, R12, R14, and C4, and then the main control module monitors the data transmission condition of the output interface microsusb through R19 and R20;
when the output interface MicroUSB and the output interface Type-C are connected together, the main control module can monitor data transmission of the two ports, preferentially connect to carry out data transmission or connect to the data transmission through the main control module after setting.
The invention is characterized in that:
1) the multi-wire rod is internally provided with a multi-port load identification circuit and a data reading circuit, and can identify the multimedia equipment and confirm whether the equipment carries out data transmission or not; in the prior art, a circuit structure with a load identification function for a plurality of wires is not found, and the data transmission condition cannot be detected in real time.
2) The multi-wire is internally provided with a multi-port data control circuit, and data transmission can be connected and cut off at any time; a multi-port output current detection circuit is arranged, whether each path is full of data connection, removal and charging can be judged, and the corresponding output port is closed; this function allows for multi-drop free data transfer and the choice of whether to charge or not.
3) And by matching with programmable IC master control, intelligent detection and switching of more data interfaces can be realized so as to realize data transmission of any interface. The use of a programmable IC master facilitates the free setting of the above-mentioned switching.
The above-mentioned points of the invention do not represent all the points of the invention, and there is a relation between the points of the invention. The programmable IC main control chip is added to realize the functions of free control of each branch, free switching of data transmission channels, and the like. And a load identification function circuit is also necessary to realize free switching. The invention has the advantages that the charging and data transmission can be arbitrarily selected and branched for one-to-many USB wires through the chip connection mode and the function realized together. The technical scheme firstly solves the problem that different multimedia equipment in the market can only carry out data transmission by being provided with wires with different interfaces; and secondly, the problem that the function of data transmission of any port cannot be realized by one-driving-multiple wires commonly used in the market at present is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is to be understood that the drawings in the following description are merely exemplary of some embodiments of the invention. For a person skilled in the art, without inventive effort, further figures can be obtained from these figures.
Fig. 1 is a block diagram of a system for implementing charging and data transmission by using one or more wires according to an embodiment of the present invention;
FIG. 2A is a diagram of a portion of a circuit 1 for implementing the function of a multi-wire material;
FIG. 2B is a partial circuit diagram of the implementation of the function of a multi-wire material;
FIG. 2C is a diagram of a portion of the circuit implementing the function of a multi-wire material;
FIG. 2D is a diagram of a portion of a circuit 4 for implementing the function of a multi-wire material;
FIG. 2E is a partial circuit diagram of the implementation of the function of a multi-wire material;
fig. 2F is a partial circuit diagram 6 for implementing the function of a multi-wire material.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
It is to be noted that the terms "comprises" and "comprising" and any variations thereof in the embodiments and drawings of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
As shown in fig. 1, an embodiment of the present invention discloses a multi-wire rod for implementing any one-way data transmission, where the circuit includes: the USB input interface is used for receiving input data; n power switch circuits and n data switch circuits; wherein the power switching circuit and the data switching circuit appear in pairs as shown in FIG. 1; for example: the power switch circuit 1 and the data switch circuit 1 form a switch control circuit 1; the power switch circuit 2 and the data switch circuit 2 form a switch control circuit 2; … …, the power switch circuit n and the data switch circuit n form a switch switching circuit n; the load detection and data reading unit comprises a load identification and current detection module and a data reading module; namely, each load identification and current detection module and each data reading module correspond to the corresponding switch control circuit; for example, the load identification and current detection module 1 and the data reading module are connected to the switch control circuit 1 (including the power switch circuit 1 and the data switch circuit 1), and are configured to detect the current of the branch circuit 1 and read data in real time; each load detection and data reading unit is respectively connected with an output interface to finish the output of detection results and data reading; each load detection and data reading unit and each switch control circuit are connected with a main control module and controlled by the main control module; the power supply module is connected with the input interface to obtain power and supply power to the main control module.
The following describes the functions implemented by the functional blocks of the circuit:
the USB input circuit: mainly connecting multimedia data output equipment such as a computer;
power supply module (system power supply circuit): after power is extracted from a charger or multimedia equipment and supplied, the LDO is converted into voltage required by the system and is supplied to a main control module and each power utilization module;
the main control module: the main function is to control the disconnection and connection of the power output circuit and the data transmission circuit;
the output interface can be a Type-C interface circuit: mainly comprises a power demand output interface such as a mobile phone, a flat panel and the like;
the output interface can also be a MicroUSB interface: the device mainly comprises a power demand output interface of a mobile phone, a tablet and the like;
a switch switching circuit: the main function is to realize the control of the output power supply and the protocol switch through the control of the master control IC, and the power supply and the protocol output by a certain path can be closed or opened according to the requirement;
the load detection and data reading unit comprises a load identification circuit and a current detection circuit. Wherein:
a load identification circuit: the main function is to be responsible for detecting the insertion identification of the load;
the current detection circuit: the main function is responsible for detecting the output current of each port;
the specific working process is as follows:
the method comprises the steps that a load detection circuit in a load detection and data reading unit is used for reading a branch line, such as a branch 1, of an inserted load by using software built in a main control module, such as an IC (integrated circuit) main control, then a switch switching circuit is used for communicating an output interface (J1) data transmission line and an output charging line of the corresponding branch line, the load detection circuit is used for reading whether the data transmission is carried out on the branch line (J1) or not by using a data reading circuit in the data reading unit, if the data transmission is carried out, the switch switching circuit can turn on both a charging circuit and a data transmission circuit, and if the data transmission is not carried out, only the charging circuit is turned on, and the data transmission circuit is turned. At this time, the data lines and the charging lines of the other branch lines are all closed.
When other output interfaces (J2) are connected to the load, the main control IC detects that other loads are added through the load detection on the branch 2 and the load identification circuit 2 in the data reading unit 2, and at this time, if the last step identifies that J1 only has a charging function and does not have a data transmission action, the charging circuit and the data transmission circuit of the output interface J2 port are both communicated; if the data transmission action of the J1 port in the last step is detected, the J2 port only turns on the charging and does not perform the data transmission.
By analogy, when the output interface of J3 or J4 is connected to the load, the same manner is used to determine whether data transmission is required.
By utilizing the technology, any one path of the multi-port wire can be independently accessed for data transmission; when multiple paths are accessed simultaneously, the path which is accessed at the beginning is preferentially used for data transmission.
Because this wire rod main function is data transmission, so can shield the quick function of filling of all mouths, when data reading circuit discerned this way need carry out quick charge protocol butt joint, can the automatic shutdown current butt joint process, only carry out conventional mains voltage and charge.
The product system at this patent place can let the input only have a USB interface (USB-A or USB-C), and the wire rod that the output has a plurality of USB interfaces (contains a plurality of USB-C or USB-B) realizes that arbitrary mouthful is independent to be inserted and all can carry out data transmission, and when the many mouthfuls were inserted, the priority was first when inserting all the way carries out data transmission.
The specific connection and operation of the devices implementing the above function module to implement the above function are described below with reference to fig. 2A to 2F.
As shown in fig. 2A-2F: the output port is exemplified by Type-C and MicroUSB, and after the USB wire is connected to the data output port of the multimedia device, the power control circuits Q1, Q2, Q3 and the data output control circuit U1 of the output port Type-C, the power control circuits Q4, Q5, Q6 and the data output control circuits U2, R12, R14 and C4 of the R5 and C1 circuits and the MicroUSB are all output-off. Wherein the chips Q1, Q2, Q3, Q4 and Q5 can be PMOS/SOT-23; the Q6 chip can be SS 8050/NPN/SOT-23; the U1 and U2 chips can be FSA 550; the U3 chip can be, for example, HI 7550-1; the resistor R5 and the capacitor C1 are connected between the USB-C QCEN and the GND in parallel; one end of the resistor R12 is connected with the USB-B-QC EN, and the other end is connected with the U2 chip and the resistor R14; the resistor R14 is connected in parallel with the capacitor C4, one end of the resistor R12 is connected, and the other end of the resistor R14 is connected with GND. The base electrode of the Q3 is connected with the USB-C EN end through a resistor R6; the collector of the Q3 is connected with the Q1 and the Q2 through a resistor R3; the emitting stage of the Q3 is connected with GND.
Other connections can be seen in fig. 2A-2F and are not described in detail here.
When the Type-C is accessed, the voltage Load-C _ DEL of the R25 is pulled down by the Load, after the main control module such as the main control IC recognizes the access of the C port, the power outputs of Q1 and Q2 are opened, and meanwhile, the path of U1 is opened, and at the moment, the D-/D + is connected with the loads such as multimedia and mobile phones for data communication; wherein the R25 is connected with the output interface USB-C.
At the moment, the main control IC is communicated with a data transmission circuit of the port C through resistors R22 and R23, and the data transmission condition of the Type-port C is read; if data communication is carried out among multimedia, the path of U1 is always opened; if there is no data communication between the multimedia, the path of U1 is closed. Wherein for the Load detection circuit, the R25 has one end connected to one end of a Load-C DEL and the other end connected to a USB-C; r22 and R23 are respectively connected with Dp and Dn at one end and respectively connected with D + and D-at one end.
After the MicroUSB is connected again, the Load-B _ DEL of the R24 resistor is pulled low, after the master control recognizes that the MicroUSB is connected, the Q4 and the Q5 are firstly turned on to output the power supply of the MicroUSB, and at the moment, the Type-C and the MicroUSB can output the conventional power supply together.
Optionally, when data transmission is performed at the Type-C output port, the microsusb does not open the data transmission circuit controlled by U2, R12, R14, and C4, and data transmission can be performed only by the Type-C.
Optionally, when the Type-C output port does not perform data transmission, the main control module may open the data transmission circuit controlled by U2, R12, R14, and C4, and then the main control module monitors the data transmission condition of the microsusb through R19 and R20. One ends of the R12 and the R14 are connected with the U2, the other end of the R12 is connected with the USB-B-QC, and the other end of the R14 is connected with GND.
When MicroUSB and Type-C insert together, host system can monitor the data transmission of two mouths, the data transmission that carries on of preferred access, optional also can pass through the first data transmission of access after host system sets up.
The above device embodiment corresponds to the method embodiment shown in fig. 1-2, and has the same technical effect as the method embodiment, and the specific description refers to the method embodiment. The embodiment of the device is obtained based on the embodiment of the method, and specific description can be referred to the embodiment of the method, which is not described herein again.
Those of ordinary skill in the art will understand that: the figures are merely schematic representations of one embodiment, and the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
Those of ordinary skill in the art will understand that: modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be located in one or more devices different from the embodiments with corresponding changes. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a multi-wire rod realizes that arbitrary one way carries out data transmission's wire rod which characterized in that, this circuit includes: a USB input interface for receiving input data; at least two switch control circuits are connected with the USB input interface; the switch control circuit comprises a power switch circuit and a data switch circuit;
at least two load detection and data reading units which are respectively connected with at least two switch control circuits and are used for current detection and data reading of corresponding line branches; the load detection and data reading unit is respectively connected with an output interface to finish the output of detection results and data reading;
the main control module is connected with each load detection and data reading unit and each switch control circuit; the main control module comprises a main control IC, the control of the output power supply and the switch is realized through the control of the main control IC, and the power supply and the data output by one branch are closed or opened according to the requirement.
2. The wire according to claim 1, wherein the load detection and data reading unit includes a load identification circuit for detecting insertion identification of a load and a current detection circuit; the current detection circuit is used for detecting the output current of each branch.
3. The wire according to claim 1, wherein the master IC is a programmable IC master, enabling free control of a switch control circuit.
4. The wire of claim 1, wherein the output interfaces are Type-C and microsusb, respectively.
5. A method for data transmission over a multi-lane material, the method comprising:
step 1: a main control module, which includes the software built in the main control IC, and uses the first load identification circuit in the first load detection and data reading unit to read the branch inserted into the multi-line of the load;
step 2: a switch switching circuit connects the branched first output interface (J1) data transmission line and the output charging line, the first load is used to detect whether the data reading circuit in the data reading and reading unit is reading the first output interface (J1) to perform data transmission, if the data transmission is performed, the switch switching circuit will open both the charging circuit and the data transmission circuit, if the data transmission is not performed, only the charging circuit is opened, and the data transmission circuit is closed; and the data lines and the charging lines of other branches are closed at the moment;
and step 3: when other output interfaces (J2) are connected to the load, the master IC detects that other loads are added through second load detection circuits in second load detection and data reading units on other branches, and if it is identified in step 2 that the first output interface (J1) only has a charging function and does not perform data transmission, the charging circuits and the data transmission circuits of other output interfaces (J2) are connected; if the first output interface (J1) is detected to have data transmission in the step 2, the other output interfaces (J2) only open charging and do not carry out data transmission.
6. The method of claim 5, wherein when the data reading circuit recognizes that the circuit needs to be docked by the fast charging protocol, the current docking process is automatically turned off and only the normal power supply voltage charging is performed.
7. The method of claim 6, wherein the output ports are Type-C and MicroUSB, respectively; after the USB wire is connected to an output port of the equipment, the power supply control circuits Q1, Q2 and Q3 of the output interface Type-C, the data transmission control circuits U1, R5 and C1, the power supply control circuits Q4, Q5 and Q6 of the output interface MicroUSB and the data output control circuits U2, R12, R14 and C4 are all closed; wherein the chips of Q1, Q2, Q3, Q4 and Q5 are PMOS/SOT-23; the Q6 chip is SS 8050/NPN/SOT-23; the U1 chip is FSA 550; the resistor R5 and the capacitor C1 are connected between the EN end of the USB-C QC and the GND in parallel; the U2 chip is FSA 550; the U3 chip is HI 7550-1; one end of the resistor R12 is connected with the EN end of the USB-B-QC, and the other end of the resistor R12 is connected with the U2 chip and the resistor R14; the resistor R14 is connected in parallel with the capacitor C4, one end of the resistor R12 is connected, and the other end of the resistor R14 is connected with GND.
8. The method of claim 6, wherein when the output interface Type-C is connected, the voltage Load-C _ DEL of R25 is pulled low by the Load, and when the master IC recognizes that the output interface Type-C is connected, the power outputs of Q1 and Q2 are turned on, and the U1 is turned on, and at this time, D-/D + is connected to the multimedia device and the mobile phone Load for data communication; wherein the R25 is connected with the output interface USB-C.
9. The method as claimed in claim 8, wherein while the output port Type-C data transmission is in progress, the output interface MicroUSB does not turn on the data transmission circuits controlled by U2, R12, R14 and C4, and only the output port Type-C data transmission can be performed; when the output interface MicroUSB is connected again, the Load-B _ DEL of the R24 resistor is pulled low, the main control IC turns on the Q4 and the Q5 to output the power supply of the output interface MicroUSB after recognizing that the output interface MicroUSB is connected, and the Type-C of the output interface and the output interface MicroUSB output a conventional power supply; wherein the R24 is connected with USB-B; one ends of the R12 and the R14 are connected with the U2, the other end of the R12 is connected with the USB-B-QC, and the other end of the R14 is connected with GND.
10. The method of claim 9, wherein when the Type-C output port of the output interface does not perform data transmission, the master control module opens the data transmission circuit controlled by U2, R12, R14, and C4, and then the master control module monitors the data transmission condition of the microsub of the output interface through R19 and R20;
when the output interface MicroUSB and the output interface Type-C are connected together, the main control module can monitor data transmission of the two ports, preferentially connect to carry out data transmission or connect to the data transmission through the main control module after setting.
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| CN201911407015.9A CN111061667A (en) | 2019-12-31 | 2019-12-31 | Wire rod for realizing data transmission of any one way by one dragging of multiple wires |
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| CN201911407015.9A CN111061667A (en) | 2019-12-31 | 2019-12-31 | Wire rod for realizing data transmission of any one way by one dragging of multiple wires |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817373A (en) * | 2020-06-30 | 2020-10-23 | 深圳市七州产品设计有限公司 | Charging management device, one-to-many charging wire, quick charging system and management method |
| CN111864854A (en) * | 2020-08-03 | 2020-10-30 | 珠海智融科技有限公司 | Pin multiplexing circuit and working method thereof, and quick charging chip and working method thereof |
| CN112199311A (en) * | 2020-09-25 | 2021-01-08 | 深圳市诚芯微科技有限公司 | Multi-channel power supply and data transmission switching circuit and data line |
| CN114726041A (en) * | 2022-04-13 | 2022-07-08 | 深圳市乐麦微电子科技有限公司 | One-to-many data charging line and charging control method |
| CN115483746A (en) * | 2022-10-31 | 2022-12-16 | 深圳市百泰实业股份有限公司 | Mobile storage charger baby and control circuit thereof |
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2019
- 2019-12-31 CN CN201911407015.9A patent/CN111061667A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817373A (en) * | 2020-06-30 | 2020-10-23 | 深圳市七州产品设计有限公司 | Charging management device, one-to-many charging wire, quick charging system and management method |
| CN111864854A (en) * | 2020-08-03 | 2020-10-30 | 珠海智融科技有限公司 | Pin multiplexing circuit and working method thereof, and quick charging chip and working method thereof |
| CN111864854B (en) * | 2020-08-03 | 2021-04-06 | 珠海智融科技有限公司 | Pin multiplexing circuit and working method thereof, and quick charging chip and working method thereof |
| CN112199311A (en) * | 2020-09-25 | 2021-01-08 | 深圳市诚芯微科技有限公司 | Multi-channel power supply and data transmission switching circuit and data line |
| CN112199311B (en) * | 2020-09-25 | 2021-07-23 | 深圳市诚芯微科技有限公司 | Multi-channel power supply and data transmission switching circuit and data line |
| CN114726041A (en) * | 2022-04-13 | 2022-07-08 | 深圳市乐麦微电子科技有限公司 | One-to-many data charging line and charging control method |
| CN115483746A (en) * | 2022-10-31 | 2022-12-16 | 深圳市百泰实业股份有限公司 | Mobile storage charger baby and control circuit thereof |
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