CN111327091A - One-to-many rated distribution quick-charging wire and quick-charging method - Google Patents
One-to-many rated distribution quick-charging wire and quick-charging method Download PDFInfo
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- CN111327091A CN111327091A CN201911413565.1A CN201911413565A CN111327091A CN 111327091 A CN111327091 A CN 111327091A CN 201911413565 A CN201911413565 A CN 201911413565A CN 111327091 A CN111327091 A CN 111327091A
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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
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Abstract
The invention provides a one-drive-multiple quota distribution quick-charging wire and a quick-charging method, wherein the quick-charging wire comprises an input interface connected with a power supply and a plurality of output interfaces used for connecting loads; the technical scheme is as follows: a quota distribution circuit is arranged between the input interface and the output interface; the quota distribution circuit collects a first charging protocol of a load arranged on the output interface, and then charges the load according to the charging protocol, wherein the charging power of the quota distribution circuit is P; and the charging power of the n loads connected with other output interfaces is P/(n + 1). The invention has simple circuit structure, small volume of finished products and convenient carrying and can realize the purpose that a plurality of output interfaces can be charged quickly.
Description
Technical Field
The invention belongs to the field of wires, and particularly relates to a one-drag-multiple rated distribution quick-charging wire and a quick-charging method.
Background
With the development of a mobile phone charging technology, most of the existing smart phones adopt a quick charging scheme, and the high-pass QC quick charging, OPPO VOOC flash charging, SuperCharge quick charging and the like can be realized in a detailed way.
To fill the mode soon, current charging wire mainly has two kinds of commonly used modes: one-to-one output, only one path of input and output of the wire is provided, 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; the other type is a common one-to-many wire in the market, generally adopts shielding quick charging output, and only has conventional power supply output no matter single-path output or multi-path output.
To a wire rod that drags many, if adopt conventional power output, in use, if when connecting Type-C interface and/or micro USB input interface, can't carry out quick charge to cell-phone and portable equipment, it is inconvenient to use.
Disclosure of Invention
In order to solve the problem that the charging wire in the prior art can not realize the quick charging of multiple output interfaces under the condition of one-to-many dragging, the invention provides the one-to-many rated distribution quick charging wire and the quick charging method, which can effectively solve the problem.
In order to achieve the purpose, the invention adopts the specific scheme that: a one-to-many quota distribution quick charging wire comprises an input interface (J2) for connecting a power supply and a plurality of output interfaces for connecting loads; a quota distribution circuit is arranged between the input interface (J2) and the output interface; the quota distribution circuit collects a first charging protocol of a load arranged on the output interface, and then charges the load according to the charging protocol, wherein the charging power of the quota distribution circuit is P; the charging power of the n loads connected with other output interfaces is P/(n + 1);
preferably, the input interface comprises a USB input interface and the output interface comprises a USB output interface.
The quota distribution circuit comprises load identification circuits corresponding to the number of the USB output interfaces, charging protocol reading circuits corresponding to the number of the USB output interfaces and a main control circuit; the main control circuit is electrically connected with the load identification circuit and is used for detecting whether a load is connected or not; the main control circuit is electrically connected with the charging protocol reading circuit and is used for acquiring a charging protocol of a load; the load identification circuit is electrically connected with the USB input interface and used for supplying power to the corresponding USB output interface.
A one-to-many quota allocation quick charging method has the technical scheme that: firstly, connecting a load at any one USB output interface; after a load is detected, acquiring a charging protocol of the load, and charging the load through a USB input interface connected with a power supply according to the charging protocol, wherein the charging power is P; subsequently, if n loads are detected to be connected to different USB output interfaces, the charging power of each USB output interface is P/(n + 1).
Has the advantages that: the invention has the following advantages:
1) the problem that different quick-charging mobile phones in the market can be quickly charged only by being equipped with wires with different interfaces is solved;
2) the problem that the one-driving-multiple wires commonly used in the market can not realize quick charging is solved.
Meanwhile, the invention has simple circuit structure, small finished product volume and convenient carrying.
Drawings
FIG. 1 is a block diagram of the present invention.
FIG. 2 is a circuit of the USB input interface of the present invention.
Fig. 3 is a circuit of a first protocol reading unit in the present invention.
FIG. 4 is a circuit diagram of a first USB output interface according to the present invention.
Fig. 5 is a circuit of a second protocol reading unit in the present invention.
Fig. 6 is a circuit of the second USB output interface.
Fig. 7 is a circuit of the MCU unit in the present invention.
Fig. 8 is a load detection circuit in the present invention.
Fig. 9 is a power supply circuit in the present invention.
Detailed Description
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.
As shown in fig. 1, the basic principle of the present invention is: by using software built in the MCU unit U4, firstly reading which USB output interface is connected with the load, then reading the charging protocol of the load, and then charging the load through the USB input interface J2 connected with a power supply; meanwhile, the information is distributed to the MCU unit U4, and the MCU unit U4 distributes the input power P and equally outputs the power P to each path of output.
Specific example I: the first USB output interface J1 is used as a Type-C interface; the second USB output interface J3 is described as a microsub.
When the Type-C port detects that a load exists, firstly, a charging protocol of the load is collected, the input power value is P, and the MCU unit U4 controls the output power of the first protocol reading unit U1 to be P; when the microsusb port is plugged into a load, the MCU unit U4 detects the second load, and controls the two output powers to be 1/2P through the SDA1 port, the SCK1 port, the SDA2 port, and the SCK2 port circuits, that is, the total input power is divided into two uniform parts.
Any two output protocol circuits of the circuit do not communicate with each other, when a load is inserted, the input power P is equally divided, and if n paths of output are counted, the output power is respectively P/n paths.
Specifically, as shown in fig. 2 to 9, a one-drive-multiple quota allocation fast charging circuit includes a USB input interface J2 connected to a power supply and a plurality of USB output interfaces for connecting to a load; the technical scheme is as follows: a quota distribution circuit is provided between the USB input interface J2 and the USB output interface.
Specifically, the quota allocation circuit comprises load identification circuits corresponding to the number of the USB output interfaces, charging protocol reading circuits corresponding to the number of the USB output interfaces, and a main control circuit; the master control circuit comprises an MCU unit U4; the charging protocol reading circuit includes a first protocol reading unit U1 and a second protocol reading unit U2.
The power supply end of the USB input interface J2 is connected with the power supply output end of the first protocol reading unit U1 after being connected with the first inductor L1 in series; the power supply output terminal of the first protocol reading unit U1 is connected with the power supply terminal of the first USB output interface J1.
Meanwhile, the power supply end of the USB input interface J2 is connected in series with the second inductor L2 and then connected to the power supply output end of the second protocol reading unit U2; the power supply output end of the second protocol reading unit U2 is connected with the power supply end of the second USB output interface J3;
the SDA1 and SCK1 ports on the first protocol reading unit U1 are communicated with the MCU unit U4; the SDA2 and SCK2 ports on the second protocol reading unit U2 are communicated with the MCU unit U4 and are used for transmitting a charging protocol; the SDA1, the SCK1, the SDA2 and the SCK2 are respectively arranged on different ports of the MCU unit U4.
The first diode D1 and the seventh resistor R7 are connected in parallel between the power output end of the second protocol reading unit U2 and the power supply end of the USB input interface J2; meanwhile, the second diode D1 and the eighth resistor R8 are connected in parallel between the power output terminal of the first protocol reading unit U1 and the power supply terminal of the USB input interface J2.
In order to detect whether a load is connected or not, an I/O port of the MCU unit U4 is connected between the seventh resistor R7 and the power output end of the second protocol reading unit U2 after being connected with the ninth resistor R9; the other I/O port of the MCU unit U4 is connected between the eighth resistor R8 and the power output terminal of the first protocol reading unit U1 after being connected with the tenth resistor R10.
The one-driving-multiple quota allocation quick charging circuit further comprises a power circuit; the power supply circuit takes HT7550 as a core component and provides stable 3V output; the 3V output is used to power the MCU unit U4.
Specific example II: the first USB output interface J1 is used as a Type-C interface; the second USB output interface J3 is described as a microsub.
When a Load is connected to the Type-C interface, firstly, the port labeled Load-C _ DEL of the network on the tenth resistor R10 is pulled low, and after the MCU unit U4 recognizes that the Load is connected, the MCU unit U4 firstly communicates with the first protocol reading unit U1 through the SDA1 and the SCK1 ports, and the first protocol reading unit U1 recognizes the charging protocol and the power P of the connected Load through the D-and D + ports. When only one load is confirmed to be connected, the load is informed through the D2+ and D2-ports of the first protocol reading unit U1, and the maximum output power is P.
Then, when the microsusb has a new Load access, the port with the network label Load-B _ DEL corresponding to the ninth resistor R9 recognizes that there is a new Load access, and then communicates with the MCU unit U4 through the SDA2 and the SCK2 ports on the second protocol reading unit U2. At this time, because the two outputs are provided, the MCU unit U4 will communicate with the second protocol reading unit U2 and the first protocol reading unit U1 at the same time, and adjust the power levels of the two outputs to 1/2P, respectively.
It is to be understood that: Type-C interface: mainly comprises a power demand output interface such as a mobile phone, a flat panel and the like; MicroUSB: the device is mainly a power demand output interface of mobile phones, flat panels and the like.
The quick charging wire rod of the one-drive-multiple quota distribution quick charging circuit can be a wire rod similar to a one-drive-multiple charging wire mechanism in the prior art, and comprises a USB input interface J2 connected with a charging power supply and a plurality of USB output interfaces connected with a load, wherein the quota distribution circuit is also arranged in the wire rod and can be integrally formed with the USB input interface J2 and the USB output interfaces; similarly, the quick charging wire rod is also used for charging a plurality of loads by adopting a rated distribution method.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily change or replace the present invention within the technical scope of the present invention. Therefore, the protection scope of the present invention is subject to the protection scope of the claims.
Claims (10)
1. The one-to-many quota distribution quick-charging wire is characterized by comprising an input interface (J2) for connecting a power supply and a plurality of output interfaces for connecting loads; the method is characterized in that: a quota distribution circuit is arranged between the input interface (J2) and the output interface; the quota distribution circuit collects a first charging protocol of a load arranged on the output interface, and then charges the load according to the charging protocol, wherein the charging power of the quota distribution circuit is P; and the charging power of the n loads connected with other output interfaces is P/(n + 1).
2. The one-drag-multiple-quota dispensing quick-charging wire rod as claimed in claim 1, wherein: the input interface comprises a USB input interface, and the output interface comprises a USB output interface.
3. The one-drag-multiple-quota dispensing quick-charging wire rod as claimed in claim 2, wherein: the quota distribution circuit comprises load identification circuits corresponding to the number of the USB output interfaces, charging protocol reading circuits corresponding to the number of the USB output interfaces and a main control circuit;
the main control circuit is electrically connected with the load identification circuit and is used for detecting whether a load is connected or not;
the main control circuit is electrically connected with the charging protocol reading circuit and is used for acquiring a charging protocol of a load;
the load identification circuits are electrically connected with the USB input interface (J2) and used for supplying power to the corresponding USB output interfaces.
4. The one-drag-multiple-quota dispensing quick-charging wire rod as claimed in claim 3, wherein: the main control circuit comprises an MCU unit (U4); the charging protocol reading circuit comprises a first protocol reading unit (U1) and a second protocol reading unit (U2);
wherein, the power supply end of the USB input interface (J2) is connected with the power supply output end of the first protocol reading unit (U1) after being connected with the first inductor (L1) in series; the power supply output end of the first protocol reading unit (U1) is connected with the power supply end of the first USB output interface (J1);
meanwhile, the power supply end of the USB input interface (J2) is connected with a second inductor (L2) in series and then is connected with the power supply output end of a second protocol reading unit (U2); the power supply output end of the second protocol reading unit (U2) is connected with the power supply end of the second USB output interface (J3);
wherein, I on the first protocol reading unit (U1) and the second protocol reading unit (U2)2The C port is communicated with the MCU unit (U4) and is used for transmitting a charging protocol; the first protocol reading unit (U1) and the second protocol reading unit (U2) are both provided with load identification circuits for detecting the load connection condition.
5. The one-drag-multiple-quota dispensing quick-charging wire rod as claimed in claim 3, wherein: the load identification circuit includes: a first diode (D1), a seventh resistor (R7), a second diode (D1), an eighth resistor (R8), a ninth resistor (R9), and a tenth resistor (R10);
the first diode (D1) and the seventh resistor (R7) are connected in parallel between the power output end of the second protocol reading unit (U2) and the power supply end of the USB input interface (J2); meanwhile, a second diode (D1) and an eighth resistor (R8) are connected in parallel between the power output end of the first protocol reading unit (U1) and the power supply end of the USB input interface (J2);
wherein, an I/O port of the MCU unit (U4) is connected between the seventh resistor (R7) and the power output end of the second protocol reading unit (U2) after being connected with the ninth resistor (R9);
and the other I/O port of the MCU unit (U4) is connected between the eighth resistor (R8) and the power output end of the first protocol reading unit (U1) after being connected with the tenth resistor (R10).
6. The one-drag-multiple-quota dispensing quick-charging wire rod as claimed in claim 4, wherein: SDA1 and SCK1 ports on the first protocol reading unit (U1) are respectively connected with I on the MCU unit (U4)2The C port communicates.
7. The one-drag-multiple-quota dispensing quick-charging wire rod as claimed in claim 4, wherein: SDA2 and SCK2 ports on the second protocol reading unit (U2) are respectively connected with I of the MCU unit (U4)2The C port communicates.
8. The one-drag-multiple-quota dispensing quick-charging wire rod as claimed in claim 2, wherein: and the power supply circuit is used for supplying power to the quota distribution circuit.
9. The one-drag-multiple-quota dispensing quick-charging wire as claimed in claim 8, wherein: the power supply circuit comprises an HT7550 chip; the second pin of the HT7550 chip is connected with a current-limiting resistor (R4) in series and then is connected with a power supply; the third pin of the HT7550 chip is used as an output pin; and the first pin of the HT7550 chip is connected in series with a seventh capacitor (C7) and then is connected between a current limiting resistor (R4) and the second pin of the HT7550 chip.
10. A method of rapid charging of a multi-split rated dispensing line as claimed in any one of claims 1 to 9, wherein: firstly, connecting a load at any one USB output interface; after a load is detected, collecting a charging protocol of the load, and charging the load through a USB input interface (J2) connected with a power supply according to the charging protocol, wherein the charging power is P; subsequently, if n loads are detected to be connected to different USB output interfaces, the charging power of each USB output interface is P/(n + 1).
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Publication number | Priority date | Publication date | Assignee | Title |
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CN114039389A (en) * | 2021-10-14 | 2022-02-11 | 昂宝电子(上海)有限公司 | Multi-port charging equipment and protocol handshake implementation framework and method thereof |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114039389A (en) * | 2021-10-14 | 2022-02-11 | 昂宝电子(上海)有限公司 | Multi-port charging equipment and protocol handshake implementation framework and method thereof |
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