CN206610285U - A kind of usb expansion circuit and its hub with power supply interface - Google Patents

A kind of usb expansion circuit and its hub with power supply interface Download PDF

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Publication number
CN206610285U
CN206610285U CN201720161566.1U CN201720161566U CN206610285U CN 206610285 U CN206610285 U CN 206610285U CN 201720161566 U CN201720161566 U CN 201720161566U CN 206610285 U CN206610285 U CN 206610285U
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China
Prior art keywords
power supply
usb
supply interface
circuit
output interfaces
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Active
Application number
CN201720161566.1U
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Chinese (zh)
Inventor
毛传鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Sheng Yuanyou Electronic Technology Co Ltd
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Dongguan Sheng Yuanyou Electronic Technology Co Ltd
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Priority to CN201720161566.1U priority Critical patent/CN206610285U/en
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Abstract

The utility model is related to a kind of usb expansion circuit with power supply interface, including the USB input interfaces for grafting host computer;Several USB output interfaces for grafting terminal device;Also include the power supply interface for being used to input power supply;Hub expanded circuit, is connected with USB input interfaces, several USB output interfaces, to control the data transfer between several terminal devices and upper seat in the plane respectively;Charging control circuit, is connected with several described USB output interfaces, power supply interface respectively, by the power supply supply terminal device charging of power supply interface, and the utility model has charge function and data-transformation facility simultaneously, and the scope of application is wider, user-friendly;It is user-friendly with charge function and data-transformation facility using the hub of this usb expansion circuit with power supply interface.

Description

A kind of usb expansion circuit and its hub with power supply interface
Technical field
The utility model is related to hub technology field, more particularly, to a kind of usb expansion circuit with power supply interface And its hub.
Background technology
With the development of science and technology, because the consumption electronic products such as mobile phone, digital camera, electronic reader, tablet personal computer are got over Come more, the application of usb hub is also more and more extensive.At present, the expansible multiple USB interfaces of existing usb hub, with it is upper State consumption electronic product connection and realize upper data transfer between seat in the plane and consumption electronic product, but this kind of usb hub It can only carry out data transmission not having the function of charging for terminal device, so as to limit the use scope of hub.And In practical application, user is many times needing to charge both functions using data transfer and for terminal device simultaneously.
Utility model content
To solve the above problems, the utility model provides a kind of usb expansion circuit and its hub with power supply interface, It is provided simultaneously with data-transformation facility and charge function.
To solve above-mentioned purpose, the utility model provides following technical scheme.
A kind of usb expansion circuit with power supply interface, including the USB input interfaces for grafting host computer;For inserting Connect several USB output interfaces of terminal device;Also include the power supply interface for being used to input power supply;Hub extension electricity Road, is connected with USB input interfaces, several USB output interfaces, to control between several terminal devices and upper seat in the plane respectively Data transfer;Charging control circuit, is connected with several described USB output interfaces, power supply interface, by power supply interface respectively Power supply supply terminal device charging.
Preferably, charging control circuit also includes protection location, steady for being carried out to the power supply exported to USB output interfaces Pressure.
Preferably, the quantity of the protection location is corresponding with the quantity of the USB output interfaces, charging control circuit point It is not connected by the protection location with the power pins that connect of the USB output interfaces.
Preferably, power supply interface is micro USB interfaces.
Preferably, in addition to indicating circuit, indicating circuit is connected to power supply interface, to indicate power supply interface "on" position.
Preferably, indicating circuit is provided with the LED light for indicating power supply interface "on" position.
A kind of hub, includes a kind of usb expansion circuit with power supply interface of any of the above-described.
The technical program has the beneficial effect that:1. the external charge power supply for being used to charge to terminal device of power supply interface, Charging control circuit is connected with several described USB output interfaces, power supply interface respectively, and the charge power supply is exported to USB Output interface to terminal device to charge, and the setting of hub expanded circuit makes several terminal devices to be carried out with upper seat in the plane Data transfer, while the charge protocol of terminal device can be detected, to control charging control circuit to pass corresponding charge power supply USB output interfaces are transported to, to power terminal equipment.Thus this product has charge function and data-transformation facility simultaneously, is applicable Scope is wider, user-friendly.
2nd, protection location carries out voltage stabilizing to the power supply transmitted to USB output interfaces, improves the stability of product and using peace Quan Xing, thus improve the service life of product.
3rd, each USB output interfaces are connected with corresponding protection location, further improve the safety in utilization of product.
4th, Micro USB interfaces versatility is wide, thus product is easy to external power supply, makes supply power terminal equipment more square Just.
5th, the setting of indicating circuit is easy to user to understand instruction power supply interface "on" position.
6th, LED light indicates the "on" position of power supply interface, and effect is more directly perceived, quick.
Brief description of the drawings
Fig. 1 is the schematic block circuit diagram of the usb expansion circuit of the present embodiment one;
Fig. 2 is the circuit diagram of the power supply interface of the present embodiment one;
Fig. 3 is the circuit diagram of the USB output interfaces of the present embodiment one.
Description of reference numerals:1.USB input interfaces, 2.USB output interfaces, 3. power supply interfaces, 4. hub expanded circuits, 5. charging control circuit, 51. protection locations, 6. indicating circuits.
Embodiment
The utility model is further described below in conjunction with accompanying drawing.
Referring to figs. 1 to Fig. 3, a kind of usb expansion circuit with power supply interface, including it is defeated for the USB of grafting host computer Incoming interface 1;Several USB output interfaces 2 for grafting terminal device;Also include the power supply interface for being used to input power supply 3;Hub expanded circuit 4, is connected with USB input interfaces 1, several USB output interfaces 2, to control several terminals respectively Data transfer between equipment and upper seat in the plane;Charging control circuit 5, connects with several described USB output interfaces 2, power supply respectively Mouth 3 is connected, by the power supply supply terminal device charging of power supply interface 3.In the present embodiment, power supply interface 3 is that micro USB connect Mouthful, in other embodiments, power supply interface 3 other can be used for the power supply interface 3 charged for mini USB interfaces etc., herein no longer Repeat.
Fig. 1 shows that charging control circuit 5 also includes protection location 51, for exporting to the power supply of USB output interfaces 2 Carry out in voltage stabilizing, the present embodiment, the quantity of protection location 51 is corresponding with the quantity of USB output interfaces 2.
Fig. 3 shows, charging control circuit 5 connects power supply by the protection location 51 and the USB output interfaces 2 respectively Pin is connected, and in the present embodiment, hub expanded circuit 4 is connected with the data pin of USB output interfaces 2, to carry out data biography The detecting of the charge protocol of defeated and terminal device.
Fig. 2 is shown, in addition to indicating circuit 6, and indicating circuit 6 includes LED light, and indicating circuit 6 is connected in parallel in confession Under electrical interface 3, "on" position, LED light is lighted.
A kind of hub, includes a kind of usb expansion circuit with power supply interface of above-described embodiment, with charge function And data-transformation facility, it is user-friendly.
The operation principle of the present embodiment is as follows:During charging, pass through the external charge power supply of power supply interface 3, LED light point Bright, hub expanded circuit 4 is detected with the charge protocol of the terminal device of USB output interfaces 2 to determine corresponding terminal device Charge power supply standard, charging control circuit 5 is according to the charge protocol of the terminal device detected by its standard charging power supply Transmit to USB output interfaces 2, to power terminal equipment.
Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed, But therefore it can not be interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that for the common of this area For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (7)

1. a kind of usb expansion circuit with power supply interface, including the USB input interfaces for grafting host computer;For grafting Several USB output interfaces of terminal device;Characterized in that, also including the power supply interface for being used to input power supply;Line concentration Device expanded circuit, is connected with USB input interfaces, several USB output interfaces, to control several terminal devices and upper machine respectively Data transfer between position;Charging control circuit, is connected with several described USB output interfaces, power supply interface respectively, will be for The power supply supply terminal device charging of electrical interface.
2. a kind of usb expansion circuit with power supply interface according to claim 1, it is characterised in that charging control circuit Also include protection location, for carrying out voltage stabilizing to the power supply exported to USB output interfaces.
3. a kind of usb expansion circuit with power supply interface according to claim 2, it is characterised in that the protection location Quantity it is corresponding with the quantity of the USB output interfaces, charging control circuit passes through the protection location and the USB respectively The power pins that connect of output interface are connected.
4. a kind of usb expansion circuit with power supply interface according to claim 1, it is characterised in that power supply interface is Micro USB interfaces.
5. a kind of usb expansion circuit with power supply interface according to claim 1, it is characterised in that also including indicating electricity Road, indicating circuit is connected to power supply interface, to indicate power supply interface "on" position.
6. a kind of usb expansion circuit with power supply interface according to claim 5, it is characterised in that indicating circuit is set There is the LED light for indicating power supply interface "on" position.
7. a kind of hub, it is characterised in that including a kind of USB with power supply interface described in claim any one of 1-6 Expanded circuit.
CN201720161566.1U 2017-02-22 2017-02-22 A kind of usb expansion circuit and its hub with power supply interface Active CN206610285U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720161566.1U CN206610285U (en) 2017-02-22 2017-02-22 A kind of usb expansion circuit and its hub with power supply interface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720161566.1U CN206610285U (en) 2017-02-22 2017-02-22 A kind of usb expansion circuit and its hub with power supply interface

Publications (1)

Publication Number Publication Date
CN206610285U true CN206610285U (en) 2017-11-03

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CN201720161566.1U Active CN206610285U (en) 2017-02-22 2017-02-22 A kind of usb expansion circuit and its hub with power supply interface

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CN (1) CN206610285U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108549615A (en) * 2018-06-08 2018-09-18 上海哈诚电子科技有限公司 A kind of USB interface expander

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108549615A (en) * 2018-06-08 2018-09-18 上海哈诚电子科技有限公司 A kind of USB interface expander

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