CN212012160U - One drags many and fills wire rod soon - Google Patents
One drags many and fills wire rod soon Download PDFInfo
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- CN212012160U CN212012160U CN201922491463.3U CN201922491463U CN212012160U CN 212012160 U CN212012160 U CN 212012160U CN 201922491463 U CN201922491463 U CN 201922491463U CN 212012160 U CN212012160 U CN 212012160U
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Abstract
The utility model provides a one-with-many quick charging wire, which comprises an input interface connected with a power supply and a plurality of output interfaces used for connecting loads; a power distribution circuit is arranged between the input interface and the output interface; the power distribution circuit comprises a main control circuit, a load identification circuit and quick charging circuits corresponding to the number of the output interfaces, wherein one end of the load identification circuit is electrically connected with the main control circuit, and the other end of the load identification circuit is electrically connected with the output interfaces and is used for identifying whether the corresponding output interfaces are connected with loads or not; the main control circuit is electrically connected with the quick charging circuit to acquire the charging protocol and the power requirement of each quick charging circuit connected with the load, and the input power of the input interface is distributed to each quick charging circuit connected with the load. The one-to-many quick-charging wire circuit is simple in structure, small in finished product size, convenient to carry and capable of achieving the purpose that a plurality of output interfaces can be quickly charged.
Description
Technical Field
The utility model belongs to the wire rod field, concretely relates to one drags many and fills wire rod soon.
Background
With the development of charging technology, a plurality of quick-charging chargers appear, and people can know high-pass QC quick-charging, OPPO VOOC flash-charging, Hua SuperCharge quick-charging and the like.
There are two main common ways of charging wires today: 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.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a one drags many and fills the wire rod soon, can effectively solve above-mentioned problem.
In order to achieve the above object, the utility model discloses a concrete scheme does: a one-drive-many quick charging wire comprises an input interface connected with a power supply and a plurality of output interfaces used for connecting loads; a power distribution circuit is arranged between the input interface and the output interface;
the power distribution circuit comprises a main control circuit, a load identification circuit and quick charging circuits corresponding to the number of the output interfaces, wherein one end of the load identification circuit is electrically connected with the main control circuit, and the other end of the load identification circuit is electrically connected with the output interfaces and is used for identifying whether the corresponding output interfaces are connected with loads or not; the main control circuit is electrically connected with the quick charging circuit to acquire the charging protocol and the power requirement of each quick charging circuit connected with the load, and is used for distributing the input power of the input interface to each quick charging circuit connected with the load.
In a specific embodiment, the input interface is a USB input interface, the plurality of output interfaces are USB output interfaces, and the USB output interfaces include one or more of types-A, Type-B, Type-C, MicroUSB.
In a particular embodiment, the master control circuit includes an MCU unit (U4); the quick charging circuit comprises a first protocol reading unit (U1) and a second protocol reading unit (U2);
the power supply end of the USB input interface is connected with a first inductor (L1) in series and then is connected with the power supply output end of the first protocol reading unit (U1); 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 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);
the I2C ports on the first protocol reading unit (U1) and the second protocol reading unit (U2) are communicated with the MCU unit (U4) and are 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 identifying the load connection condition.
In a particular embodiment, the load identification circuit includes: a first diode (D1), a seventh resistor (R7), a second diode (D2), 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; meanwhile, a second diode (D2) 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;
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).
In a specific embodiment, the SDA1, SCK1 ports on the first protocol reading unit (U1) communicate with the I2C ports on the MCU unit (U4), respectively.
In a specific embodiment, the SDA2 and SCK2 ports on the second protocol reading unit (U2) communicate with the I2C ports of the MCU unit (U4), respectively.
In a specific embodiment, the power supply circuit further comprises an LDO power supply circuit for supplying power to the power distribution circuit.
In a specific embodiment, the LDO power supply circuit includes a 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.
Has the advantages that: the utility model has the advantages of it is following:
1) the problem that different electronic equipment in the market can be charged quickly 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.
And simultaneously, the utility model discloses circuit structure is simple, and the finished product is small, portable.
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 the first protocol reading unit of the present invention.
Fig. 4 is a circuit of the first USB output interface of the present invention.
Fig. 5 is a circuit diagram of a second protocol reading unit according to the present invention.
Fig. 6 is a circuit of the second USB output interface.
Fig. 7 is a circuit of the MCU unit of the present invention.
Fig. 8 shows a load recognition circuit according to the present invention.
Fig. 9 shows a power supply circuit according to 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.
In order to solve the problem that the vehicle-mounted charger in the prior art can only provide 5V charging voltage and cannot perform quick charging when charging a plurality of ports, the following specific implementation mode is adopted.
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.
Specifically, as shown in fig. 1 to 9, a one-drive-multiple quick charging wire includes a USB input interface connected to a power supply and a plurality of USB output interfaces for connecting to a load; the technical scheme is as follows: and a power distribution circuit is arranged between the USB input interface and the USB output interface.
Specifically, the power distribution circuit comprises load identification circuits corresponding to the number of the USB output interfaces, quick charging 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 quick charging circuit comprises a first protocol reading unit U1 and a second protocol reading unit U2.
The power supply end of the USB input interface is connected with the power supply output end of the first protocol reading unit U1 after being connected with a 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 is connected with the power supply output end of the second protocol reading unit U2 after being connected with a second inductor L2 in series; 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; meanwhile, the second diode D2 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.
In order to identify 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 supply 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-drive-many quick charging wire rod further comprises an LDO power supply circuit; the LDO 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.
The working principle of the one-driving-more quick-charging wire rod is as follows: 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 on the first protocol reading unit U1, the maximum output power is P1, and P is not less than P1.
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 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 two outputs, which are P1 'and P2', P1 '+ P2' < ═ P, 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.
By means of the technical scheme, when any one or more output ports are connected with a load at the same time, quick charging can be achieved.
The above description is only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily change or replace 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 (8)
1. A one-drive-many quick charging wire is characterized by comprising an input interface connected with a power supply and a plurality of output interfaces used for connecting loads; a power distribution circuit is arranged between the input interface and the output interface;
the power distribution circuit comprises a main control circuit, a load identification circuit and quick charging circuits corresponding to the number of the output interfaces, wherein one end of the load identification circuit is electrically connected with the main control circuit, and the other end of the load identification circuit is electrically connected with the output interfaces and is used for identifying whether the corresponding output interfaces are connected with loads or not; the main control circuit is electrically connected with the quick charging circuit to acquire the charging protocol and the power requirement of each quick charging circuit connected with the load, and is used for distributing the input power of the input interface to each quick charging circuit connected with the load.
2. The one-drive-many quick charging wire rod as claimed in claim 1, wherein the input interface is a USB input interface, the plurality of output interfaces are USB output interfaces, and the USB output interfaces comprise one or more of types-A, Type-B, Type-C, MicroUSB.
3. The one-drag-many quick-charging wire rod as claimed in claim 2, wherein: the main control circuit comprises an MCU unit (U4); the quick charging circuit comprises a first protocol reading unit (U1) and a second protocol reading unit (U2); the power supply end of the USB input interface is connected with a first inductor (L1) in series and then is connected with the power supply output end of the first protocol reading unit (U1); 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 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 identifying the load connection condition.
4. The one-drag-many quick-charging wire rod as claimed in claim 2, wherein: the load identification circuit includes: a first diode (D1), a seventh resistor (R7), a second diode (D2), an eighth resistor (R8), a ninth resistor (R9), and a tenth resistor (R10);
wherein, 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; meanwhile, a second diode (D2) 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;
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).
5. A multi-split quick charge wire as claimed in claim 3, 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.
6. A multi-split quick charge wire as claimed in claim 3, 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.
7. The one-drag-many quick-charging wire rod as claimed in claim 1, wherein: the LDO power supply circuit is used for providing power for the power distribution circuit.
8. The one-drag-many quick-charging wire according to claim 7, wherein: the LDO 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922491463.3U CN212012160U (en) | 2019-12-31 | 2019-12-31 | One drags many and fills wire rod soon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922491463.3U CN212012160U (en) | 2019-12-31 | 2019-12-31 | One drags many and fills wire rod soon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212012160U true CN212012160U (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922491463.3U Active CN212012160U (en) | 2019-12-31 | 2019-12-31 | One drags many and fills wire rod soon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212012160U (en) |
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2019
- 2019-12-31 CN CN201922491463.3U patent/CN212012160U/en active Active
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Address after: 518000 2nd floor, building B, Beisi intelligent park, 2008 Xuegang Road, Gangtou community, Bantian street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Beisi Technology Co.,Ltd. Address before: 518000 room 505, building 3, Yunli intelligent park, No.5, middle Changfa Road, Yangmei community, Bantian street, Longgang District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Beihang Technology Co.,Ltd. |