CN202940623U - Data line - Google Patents
Data line Download PDFInfo
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- CN202940623U CN202940623U CN 201220682544 CN201220682544U CN202940623U CN 202940623 U CN202940623 U CN 202940623U CN 201220682544 CN201220682544 CN 201220682544 CN 201220682544 U CN201220682544 U CN 201220682544U CN 202940623 U CN202940623 U CN 202940623U
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- port
- slave port
- transmission unit
- slave
- charging current
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- 230000005540 biological transmission Effects 0.000 claims description 45
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the utility model provides a data line which used for simultaneously charging for a plurality of mobile terminals and enabling mutual charging between the mobile terminals. The data line comprises a master port, a switching circuit connected with the main port, and a plurality of slave ports which is connected with the switching circuit and is used for connecting with the terminals. The switching circuit is used for transmitting charging current of the master port to each slave port, or transmitting the charging current of any first slave port connected with the terminal capable of providing the charging current to each second slave port connected with the first slave port.
Description
Technical Field
The utility model relates to an electricity field especially relates to a data line.
Background
Along with the increase of the functions of the mobile terminal, the power consumption is increased, and the volume of the mobile terminal is limited, so that the battery capacity of the mobile terminal is limited, the cruising ability of the mobile terminal is poor, and the daily life and work requirements of people cannot be met.
The existing mobile terminals, such as smart phones, often need to be supplemented with electric energy in the using process, because the interface definitions of the mobile terminals are different, corresponding data lines are needed to be charged, only one mobile terminal can be charged at each time, and if two mobile terminals are charged at the same time, the charging can be realized by two data lines.
Therefore, when a user has two or more mobile terminals, the user usually needs to carry a plurality of data lines, which brings inconvenience to the user. In addition, the prior art cannot charge mobile terminals mutually.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a data line for charge a plurality of mobile terminal simultaneously, and, make and to charge mutually between the mobile terminal.
The embodiment of the utility model provides a data line, including the main port, with the switching circuit that the main port links to each other, with a plurality of slave ports that are used for linking to each other with the terminal that the switching circuit links to each other; wherein,
the switching circuit transmits the charging current of the master port to each slave port; alternatively, the charging current of any first slave port connected to a terminal capable of supplying the charging current is transmitted to each second slave port connected to the first slave port.
According to the technical solution, the utility model discloses including the main port, with the switching circuit that the main port links to each other, with a plurality of slave ports that are used for linking to each other with the terminal that the switching circuit links to each other, wherein, the switching circuit, with the charging current transmission of main port to each slave port; alternatively, the charging current of any first slave port connected to a terminal capable of supplying the charging current is transmitted to each second slave port connected to the first slave port. Because the utility model has a plurality of slave ports and a switching circuit to transmit the charging current input by the master port to each slave port, the utility model can charge a plurality of user terminals at the same time, thereby reducing the number of data lines required to be carried by the user; additionally, because the utility model discloses when the first terminal of connecting from the port can provide the electric current, with first charging current transmission from the port to the second that links to each other from the port with this is first, consequently the utility model discloses can make between the mobile terminal charge mutually.
Drawings
Fig. 1 is a schematic structural diagram of a data line according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a data line according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a data line according to an embodiment of the present invention;
fig. 4 is a circuit diagram of a data line according to an embodiment of the present invention.
Detailed Description
An embodiment of the utility model provides a data line for charge a plurality of mobile terminal simultaneously, and, make and to charge mutually between the mobile terminal.
Referring to fig. 1, a data line provided in an embodiment of the present invention includes a master port, a switching circuit connected to the master port, and a plurality of slave ports connected to the switching circuit and used for being connected to a terminal; wherein,
the switching circuit transmits the charging current of the master port to each slave port; alternatively, the charging current of any first slave port connected to a terminal capable of supplying the charging current is transmitted to each second slave port connected to the first slave port.
Preferably, the switching circuit is capable of transmitting the charging current of the second slave port to the first slave port.
Referring to fig. 2, an internal schematic diagram of the switching circuit is shown. Preferably, the switching circuit includes a first transmission unit, a second transmission unit and a third transmission unit; the first transmission unit is connected with the first slave port and the master port and transmits the charging current of the master port to the first slave port; the second transmission unit is connected with the second slave port and the master port and transmits the charging current of the master port to the second slave port; the third transfer unit is connected to the first slave port and the second slave port, and transfers the charging current of any one of the first slave ports connected to a terminal capable of supplying the charging current to each of the second slave ports connected to the first slave port. Here, the first slave port and the second slave port both refer to slave ports to which the mobile terminal is connected.
Preferably, the switching circuit further includes a switch control circuit connecting the third transmission unit and the main port, and the third transmission unit is turned off or turned on according to whether the current is input to the main port. Preferably, when the charging current is input into the master port, the switch control circuit controls the third transmission unit to be disconnected, the first transmission unit and the second transmission unit respectively transmit the charging current of the master port to the first slave port and the second slave port, and the terminals of the slave ports are not charged; when the charging current is not input into the master port and the first slave port has the mobile terminal as a charging power supply, the switch control circuit controls the third transmission unit to be conducted, and the third transmission unit transmits the charging current of the first slave port to the second slave port.
Preferably, the third transmission unit includes a first triode and a second triode; the collector of the first triode is connected with the first slave port, the emitter of the first triode is connected with the second slave port, the base of the first triode is connected with the collector of the second triode, the emitter of the second gate diode is grounded, and the base of the second triode is connected with the first slave port; the switch control circuit is a third triode, wherein the collector of the third triode is connected with the base of the second triode, the base is connected with the main port, and the emitter is grounded.
The function of the switch control circuit can be realized in other ways, preferably, the switching circuit further comprises a mechanical switch connected with the slave port and the third transmission unit, wherein the mechanical switch is closed, and the third transmission unit is conducted; the mechanical switch is opened and the third transmission unit is disconnected.
Preferably, when there are a plurality of slave ports, a transmission unit is connected between each slave port and the master port, and some or all of the slave ports are connected one by one through the transmission unit.
As shown in fig. 3, preferably, the switching circuit further includes a comparison circuit connected to the first slave port, the second slave port and the third transmission unit, and the third transmission unit is determined to transmit the charging current of the first slave port to the second slave port according to the fact that the voltage of the first slave port is greater than the voltage of the second slave port; or, according to the fact that the voltage of the first slave port is smaller than the voltage of the second slave port, it is determined that the third transmission unit firstly boosts the output voltage of the first slave port to be larger than the voltage of the second slave port, and then transmits the charging current of the first slave port to the second slave port.
Preferably, the third transmission unit controls the charging process by different sub-transmission units according to the control of the comparison circuit. When the voltage of the first slave port is smaller than that of the second slave port, the output voltage of the first slave port is boosted through an internal booster circuit or a booster component, and then the charging current of the first slave port is transmitted to the second slave port; when the voltage of the first slave port is larger than that of the second slave port, the third transmission unit directly transmits the charging current output by the first slave port to the second slave port without passing through the boost circuit or the boost component.
Preferably, the functions of the comparison circuit and the third transmission unit are realized by one circuit.
There are many other implementations of the function of the comparison circuit. Preferably, the third transmission unit includes a first sub-transmission unit and a second sub-transmission unit; the first sub-transmission unit transmits the charging current of the first slave port to the second slave port; the second sub-transmission unit firstly boosts the output voltage of the first slave port to be larger than the voltage of the second slave port, and then transmits the charging current of the first slave port to the second slave port. The switching circuit further comprises a single-pole double-throw switch connected with the first sub-transmission unit, the second sub-transmission unit and the slave port, and when the single-pole double-throw switch is closed, the first sub-transmission unit is conducted or the second sub-transmission unit is conducted.
Preferably, the switching circuit is implemented by an integrated circuit.
Preferably, each slave port is connected with a mobile terminal with a different interface. I.e. terminals that can accommodate a variety of different interfaces.
Preferably, the main port is connected with a power supply, a computer or a mobile terminal.
Referring to fig. 4, the present invention is a specific embodiment.
In this embodiment, the master port is a master input port, the first slave port is a first input/output port, and the second slave port is a second output port. The ports are connected through a switching circuit, wherein the first transmission unit comprises a lead between a main input end and a pin 1 of a first input/output end; the third transmission unit comprises triodes Q3 and Q4, wherein a collector and an emitter of a triode Q3 are respectively connected with a first slave port power output pin and a second output end power input pin, a base of the triode Q4 is connected with a collector of the triode Q4, the emitter of the triode Q4 is grounded, a collector of a triode Q5 is respectively connected with a base of a triode Q4 and a first input and output end power output pin, and a base and an emitter of a triode Q5 are respectively connected with a main input end USB _ VBUS pin and ground; the second transmission unit comprises a MOS transistor Q1 and a triode Q2, the grid electrode of Q1 is connected with the collector electrode of Q2, the source electrode of Q1 is connected with the power input pin of the second output end, and the drain electrode of the Q1 is connected with the connecting port USB _ VBUS pin of the main input end.
In the present embodiment, Q5 is used as a switch control circuit for determining whether Q3 and Q4 are turned on according to the current input state of USB _ VBUS, and when the first input/output terminal and the second output terminal are connected to the terminal, the specific charging principle is as follows:
when the USB _ VBUS pin of the main port has 5V input voltage, the MOS transistor Q1 is turned on, the transistor Q5 is turned on, and the transistor Q4 and the transistor Q3 are turned off, at this time, the main input terminal supplies power to the first input/output terminal and the second output terminal through the pins 1 and Q1, respectively.
When the pin voltage of the connection port USB _ VBUS of the main input end is 0, the MOS transistor Q1 and the triode Q5 are cut off, the triode Q3 and the triode Q4 are conducted, and at the moment, the +5VOUT pin of the first input end and the second input end supplies power to the second output end through the Q3.
The utility model discloses specific embodiment has realized charging a plurality of terminals simultaneously to and when the first voltage from the port was greater than the second from the voltage of port, the first terminal from the port connection charges to the second from the terminal that the port is connected.
To sum up, the embodiment of the utility model provides a data line for charge to a plurality of mobile terminal simultaneously, and, make and to charge mutually between the mobile terminal.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A data line is characterized by comprising a main port, a switching circuit connected with the main port, and a plurality of slave ports connected with the switching circuit and used for being connected with terminals; wherein,
the switching circuit transmits the charging current of the master port to each slave port; alternatively, the charging current of any first slave port connected to a terminal capable of supplying the charging current is transmitted to each second slave port connected to the first slave port.
2. The data line of claim 1, wherein the switching circuit includes a first transmission unit, a second transmission unit, and a third transmission unit; wherein,
the first transmission unit is connected with the first slave port and the master port and transmits the charging current of the master port to the first slave port;
the second transmission unit is connected with the second slave port and the master port and transmits the charging current of the master port to the second slave port;
the third transfer unit is connected to the first slave port and the second slave port, and transfers the charging current of any one of the first slave ports connected to a terminal capable of supplying the charging current to each of the second slave ports connected to the first slave port.
3. The data line of claim 2, wherein the switching circuit further comprises a switch control circuit connected to the main port and the third transmission unit, and the third transmission unit is turned off or on according to whether a current is input from the main port.
4. The data line of claim 3, wherein the third transmission unit includes a first transistor and a second transistor; the collector of the first triode is connected with the first slave port, the emitter of the first triode is connected with the second slave port, the base of the first triode is connected with the collector of the second triode, the emitter of the second gate diode is grounded, and the base of the second triode is connected with the first slave port; the switch control circuit is a third triode, wherein the collector of the third triode is connected with the base of the second triode, the base is connected with the main port, and the emitter is grounded.
5. The data line of claim 2, wherein the switching circuit further comprises a mechanical switch coupled to the slave port and the third transmission unit;
the mechanical switch is closed, and the third transmission unit is conducted; the mechanical switch is opened and the third transmission unit is disconnected.
6. The data line of claim 2, wherein the switching circuit further comprises a comparison circuit connected to the first slave port, the second slave port, and a third transmission unit, wherein the third transmission unit is determined to transmit the charging current of the first slave port to the second slave port according to the fact that the voltage of the first slave port is greater than the voltage of the second slave port; or,
according to the fact that the voltage of the first slave port is smaller than that of the second slave port, the third transmission unit is determined to firstly boost the output voltage of the first slave port to be larger than that of the second slave port, and then the charging current of the first slave port is transmitted to the second slave port.
7. The data line of claim 2, wherein the third transmission unit includes a first sub-transmission unit and a second sub-transmission unit; wherein,
the first sub-transmission unit transmits the charging current of the first slave port to the second slave port;
the second sub-transmission unit firstly boosts the output voltage of the first slave port to be larger than the voltage of the second slave port, and then transmits the charging current of the first slave port to the second slave port;
the switching circuit further comprises a single-pole double-throw switch connected with the first sub-transmission unit, the second sub-transmission unit and the slave port, and when the single-pole double-throw switch is closed, the first sub-transmission unit is conducted or the second sub-transmission unit is conducted.
8. The data line of claim 1, wherein each slave port is connected to a mobile terminal of a different interface.
9. The data line of claim 1, wherein the main port is connected to a power source, or a computer, or a mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220682544 CN202940623U (en) | 2012-12-11 | 2012-12-11 | Data line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220682544 CN202940623U (en) | 2012-12-11 | 2012-12-11 | Data line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940623U true CN202940623U (en) | 2013-05-15 |
Family
ID=48324846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220682544 Expired - Lifetime CN202940623U (en) | 2012-12-11 | 2012-12-11 | Data line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247264A (en) * | 2019-06-21 | 2019-09-17 | 优奈柯恩(北京)科技有限公司 | Connector and the method for carrying out charge control using connector |
-
2012
- 2012-12-11 CN CN 201220682544 patent/CN202940623U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247264A (en) * | 2019-06-21 | 2019-09-17 | 优奈柯恩(北京)科技有限公司 | Connector and the method for carrying out charge control using connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
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| CX01 | Expiry of patent term |