A kind of TYPE C Dongle and its electric supply installation
Technical field
This utility model is related to electronics field, and in particular to a kind of TYPE C Dongle and its electric supply installation.
Background technology
With the continuous development of science and technology, Dongle (adapter, expander) applications in the electronic device are also more next
It is more, can realize the data transfer of electronic equipment and ancillary equipment using Dongle.
Dongle has first connection end being connected with electronic equipment and the second connection end being connected with ancillary equipment,
First connection end is usually TYPE C interface, in order to extend the application of Dongle, makes electronic equipment while charging and periphery
Equipment realizes data transfer, and multiple interfaces would generally be arranged on the second connection end, for example, arrange two or more USB and connect
Mouthful, one is used for data transfer, and it is electronic equipment charging that one is used for by power supply adaptor.
This Dongle has two kinds of working methods:
(1) TYPE C interface is directly to power for the interface of data transfer, and the interface for charging gives TYPE C interface
Power so as to realize charging electronic equipment.This mode, electronic equipment also wants peripheral device to power while charging,
Reduce the efficiency charged to electronic equipment.
(2) TYPE C interface is only used for data transfer, for charge interface in addition to powering to TYPE C, also to the periphery
Equipment is powered.This mode, electronic equipment no longer peripheral device while charging is powered, therefore, substantially increase charging
Efficiency.But the program, while Dongle is charged by power supply adaptor to electronic equipment, connects further through USB3.0
When there is data transfer in mouth connection data transmission set, if pull out the power supply adaptor of Dongle charging inlets this moment
Power line, power supply and the data transfer of data transmission set will be interrupted, and cause the loss of data of user, in addition have cause use
The risk that the data transmission set at family is damaged.
As can be seen here, need to be improved the power supply mode of Dongle design, it is maximized same charge efficiency is met
When, it is ensured that the seriality of data transfer.
Utility model content
Technical problem to be solved in the utility model is to meet charge efficiency maximized simultaneously, it is ensured that data transfer
Successional problem.
In order to solve the above problems, the technical scheme that this utility model is adopted is to provide a kind of TYPE C Dongle's
Electric supply installation, including for be connected with electronic equipment first interface, for the second interface that carries out data transmission and for even
The 3rd interface of power supply adaptor is connect, DC booster and straight has been sequentially connected in series between the first interface and the second interface
Stream reducing transformer, also includes:
First switch and second switch, are separately positioned between the first interface and the DC booster, Yi Jisuo
State between DC decompression device and the second interface;
3rd switch and the 4th switch, the positive and negative electrode being separately positioned between the first interface and the second interface
On power supply line;
The first, second, third and fourth switchgear distribution is, during three interfaces, the first switch and
The second switch closure, the 3rd switch and the described 4th is switched off;When 3rd interface does not work, described first
Switch and the second switch disconnect, and the described 3rd switchs and the described 4th switch closure.
In such scheme, the first interface is TYPE C interface, and the second interface and the 3rd interface are USB
Interface.
In such scheme, the second interface working condition is detected by electric source monitoring circuit.
In such scheme, also include the LED light for indicating second interface working condition.
In such scheme, the LED light is arranged between the DC decompression device and the second switch.
In such scheme, the second interface is HDMI.
This utility model also provides a kind of TYPE C Dongle, including main body, is provided with such scheme in the main body
A kind of electric supply installation of TYPE C Dongle.
This utility model, by changing the closed and disconnected of four switches the path that electric supply installation is powered is changed, so as to
Meet charge efficiency in electronic equipment maximized simultaneously, carry out data transmission, when power supply adaptor is pulled out, it is ensured that data
The seriality of transmission, transmission data is not lost, transmission data equipment is not damaged.
Description of the drawings
Fig. 1 is the schematic diagram of electric supply installation in this utility model.
Specific embodiment
This utility model is described in detail below in conjunction with the accompanying drawings.
Show such as Fig. 1, a kind of electric supply installation of TYPE C Dongle that this utility model is provided, including for setting with electronics
The first interface 1 of standby connection, the 3rd interface 5 for the second interface 4 that carries out data transmission and for connecting power supply adaptor,
DC booster 2 and DC decompression device 3 are sequentially connected in series between first interface 1 and second interface 4, first interface 1 is TYPE C
Interface, second interface 4 is USB interface or HDMI, and the 3rd interface 5 is USB interface.
First interface 1 includes power supply positive and negative electrode terminal and data transfer terminal, first interface 1 be mainly used in outward
Peripheral equipment connects, and peripheral device is powered and transmission data.
In use, great majority are used in battery powered portable equipment, are passed through for DC booster 2 and DC decompression device 3
DC booster 2 obtains the high voltage wanted needed for circuit, and by DC decompression device 3 low-voltage needed for circuit is obtained, and comes
Meet the needs of the electronic equipment in used circuit.
Second interface 4 is mainly used in connecting the equipment that the needs of periphery carry out data transmission, and can be protected by second interface 4
The data of card ancillary equipment are effectively transmitted.
3rd interface 5 is mainly used in being connected with power adaptor interface, it is ensured that power supply adaptor is electronic equipment and data
The power supply conveying of transmission equipment.
The electric supply installation of TYPE C Dongle also includes that first switch 71, the switch of second switch 72 and the 3rd the 73, the 4th are opened
74 are closed, first switch 71 is arranged between first interface 1 and DC booster 2, and second switch 72 is arranged on the He of DC decompression device 3
Between second interface 4;3rd switch and the 4th switch, the positive and negative electrode being separately positioned between first interface 1 and second interface 4
On power supply line, the electric supply installation of TYPE C Dongle detects the working condition of current second interface 5 by electric source monitoring circuit,
The Main Function of electric source monitoring circuit is that electric source monitoring circuit can when power supply adaptor matching is connected on the 3rd interface 5
Electric current and voltage signal that power supply adaptor sends effectively are monitored, while the on-off control being provided with by electric source monitoring circuit
Circuit come realize to first switch 71, second switch the 72, the 3rd switch 73 and the 4th switch 74 closed and disconnected control,
So as to the operating path of switching circuit, first, second, third and fourth switchgear distribution is that when the 3rd interface 5 works, first opens
Pass 71 and second switch 72 realize closure by the ON-OFF control circuit that electric source monitoring circuit is provided with, and the 3rd switch 73 and the 4th is opened
Close 74 ON-OFF control circuit being provided with by electric source monitoring circuit to realize disconnecting;When 3rd interface 5 does not work, the He of first switch 71
Second switch 72 is realized disconnecting again by the ON-OFF control circuit that electric source monitoring circuit is provided with, and the 3rd switch 73 and the 4th is switched
74 ON-OFF control circuit being provided with again by electric source monitoring circuit realize closure.
The LED light 6 for indicating the working condition of second interface 4 is provided between DC decompression device 3 and second switch 72,
The Main Function of LED light 6 is the working condition for monitoring second interface 4, so that people can more LED light 6
Light on and off is judging the working condition of present TYPE C Dongle.
In the device course of work, when first interface 1 is connected with corresponding electronic equipment, second interface 4 is connected with number
According to transmission equipment, and power supply adaptor is matched when being connected on the 3rd interface 5, and electric source monitoring circuit monitors power supply adaptor
Power supply signal, the ON-OFF control circuit action that electric source monitoring circuit is provided with promotes first switch 71 and second switch 72 to close, the
Three switches 73 and the 4th switch 74 disconnect, and now, power supply adaptor is the power electronic equipment of the connection of first interface 1, while being
Data transmission set is powered, so as to carry out data transmission.When power supply adaptor and the 3rd interface 5 disconnect, electric source monitoring circuit
While monitoring that the power supply signal of power supply adaptor is lost, the ON-OFF control circuit action that electric source monitoring circuit is provided with promotes
3rd switch 73 and the 4th switch 74 are closed, and first switch 71 and second switch 72 disconnect, now, the electricity of the connection of first interface 1
The data transmission set that sub- equipment is connected with first interface 4 forms loop, and powers for data transmission set, it is ensured that data transfer
The data transfer of equipment continues, it is to avoid loss of data and the damage of data transmission set.
This utility model, by changing the closed and disconnected of four switches the path that electric supply installation is powered is changed, so as to
Meet charge efficiency in electronic equipment maximized simultaneously, carry out data transmission, when power supply adaptor is pulled out, it is ensured that data
The seriality of transmission, transmission data is not lost, transmission data equipment is not damaged.
This utility model is not limited to above-mentioned preferred forms, and anyone should be learnt under enlightenment of the present utility model
The structure change made, it is every that there is same or like technical scheme with this utility model, each fall within guarantor of the present utility model
Within the scope of shield.