CN204407655U - Interface equipment and system - Google Patents
Interface equipment and system Download PDFInfo
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- CN204407655U CN204407655U CN201420545240.5U CN201420545240U CN204407655U CN 204407655 U CN204407655 U CN 204407655U CN 201420545240 U CN201420545240 U CN 201420545240U CN 204407655 U CN204407655 U CN 204407655U
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Abstract
The utility model relates to a kind of interface equipment and system.Above-mentioned interface equipment comprises voltage conversion circuit, and the first interface be electrically connected with voltage conversion circuit respectively and the second interface, and first interface is the interface adapting to electronic equipment, and the second interface is the interface adapting to USB device.Above-mentioned interface system comprises interface equipment; Also comprise the electronic equipment be electrically connected with the first interface of interface equipment, and the usb host equipment be electrically connected with the second interface of interface equipment or USB power source equipment.Above-mentioned interface equipment and system, first interface connects the adapt voltages such as apple ancillary equipment and general USB from the different electronic equipment of equipment, second interface connects the USB device that usb host equipment or USB power source equipment etc. can be powered, be the voltage of adaptive first interface by the voltage transitions of the second interface by voltage conversion circuit, enable usb host equipment or USB power source equipment to adapt voltages and USB from the different power electronic equipment of equipment.
Description
Technical field
The utility model relates to the technical field of USB device, particularly relates to a kind of interface equipment and system.
Background technology
The electronic device user of Apple is numerous, therefore for the equipment (hereinafter referred to as apple equipment) such as iphone mobile phone, iPAD panel computer of Apple, develop a lot of apple ancillary equipment being applicable to it and using, such as, be applicable to the USB storage device (hereinafter referred to as i Phone USB flash disk) etc. of iphone mobile phone or the use of iPAD panel computer.
The interface of these apple ancillary equipment adapts to apple equipment, the output voltage of apple equipment is 3.3V, and general power to other equipment usb host equipment and the output voltage of USB power source equipment be 5V, therefore apple ancillary equipment generally cannot adaptation with usb host equipment or USB power source equipment.
For i Phone USB flash disk, the output voltage of iphone mobile phone is 3.3V, and the output voltage of general usb host equipment is 5V, therefore usb host equipment powers to i Phone USB flash disk, is unfavorable for that i Phone USB flash disk and usb host equipment carry out exchanges data.Usb host equipment may be desktop computer, notebook computer, panel computer, have the mobile phone etc. of USB interface or Micro USB interface, and i Phone USB flash disk can not carry out exchanges data with these equipment, causes inconvenience to user.
Utility model content
Based on this, be necessary to the problem adapting to the power electronic equipment different from its output voltage, a kind of interface equipment and system to be provided for USB device such as usb host equipment or USB power source equipment.
A kind of interface equipment, comprises voltage conversion circuit, and the first interface be electrically connected with described voltage conversion circuit respectively and the second interface, and described first interface is the interface adapting to electronic equipment, and described second interface is the interface adapting to USB device.
Wherein in an embodiment, described first interface is the maternal interface of adaptive apple equipment or the public access mouth of adaptive apple equipment;
And/or described second interface is any one in USB public access mouth, USB maternal interface, mini USB public access mouth, miniUSB maternal interface, micro USB public access mouth, micro USB maternal interface.
Wherein in an embodiment, described first interface comprises the first power line, and described second interface comprises second source line, and described first power line and described second source line are electrically connected with described voltage conversion circuit respectively; The output voltage of described first power line is 3.3V, and the input voltage of described second source line is 5V.
Wherein in an embodiment, described voltage conversion circuit is LDO change-over circuit.
Wherein in an embodiment, described voltage conversion circuit is DC/DC change-over circuit.
Wherein in an embodiment, described DC/DC change-over circuit comprises reduction voltage circuit and regulating circuit, and described reduction voltage circuit is electrically connected with described regulating circuit.
Wherein in an embodiment, described DC/DC change-over circuit also comprises the filter circuit be electrically connected with described regulating circuit output.
Wherein in an embodiment, described DC/DC change-over circuit also comprises the 0 Ω resistance be electrically connected with described filter circuit output.
Wherein in an embodiment, described interface equipment comprises printed circuit board (PCB), described voltage conversion circuit is arranged on the printed circuit board, on the pad that described first interface is corresponding with the two ends that described second interface is welded on described printed circuit board (PCB) respectively.
A kind of interface system, comprises described interface equipment;
Also comprise the electronic equipment be electrically connected with the first interface of described interface equipment, and the usb host equipment be electrically connected with the second interface of described interface equipment or USB power source equipment.
Above-mentioned interface equipment and system, first interface connects the adapt voltages such as apple ancillary equipment and general USB from the different electronic equipment of equipment, second interface connects the USB device that usb host equipment or USB power source equipment etc. can be powered, be the voltage of adaptive first interface by the voltage transitions of the second interface by voltage conversion circuit, enable usb host equipment or USB power source equipment to adapt voltages and USB from the different power electronic equipment of equipment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of an embodiment interface equipment;
Fig. 2 is the schematic diagram of the voltage conversion circuit of the equipment of interface shown in Fig. 1;
Fig. 3 is the schematic diagram of an embodiment interface system.
Embodiment
For the ease of understanding the utility model, be described more fully below with reference to relevant drawings docking port interconnecting device and system.The first-selected embodiment of interface equipment and system is given in accompanying drawing.But interface equipment and system can realize in many different forms, is not limited to embodiment described herein.On the contrary, the object of these embodiments is provided to be make the disclosure of docking port interconnecting device and system more comprehensively thorough.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in the specification of interface equipment and system herein just in order to describe specific embodiment, is not intended to be restriction the utility model.
As shown in Figure 1, the interface equipment 100 of an execution mode comprises voltage conversion circuit 120, and the first interface 140 be electrically connected with voltage conversion circuit 120 respectively and the second interface 160.First interface 140 is for adapting to the interface of electronic equipment, and electronic equipment is the adapt voltages such as apple ancillary equipment from general USB from the different electronic equipment of equipment.Apple ancillary equipment can apple be mobile phone USB flash disk etc.Second interface 160 is for adapting to the interface of USB device, and USB device is the USB device that usb host equipment or USB power source equipment etc. can be other equipment and powers.The output voltage of USB device is different from the adapt voltages of electronic equipment.Be the voltage of adaptive first interface 140 by the voltage transitions of the second interface 160 by voltage conversion circuit 120, thus enable USB device to the adapt voltages power electronic equipment different from USB device.
Wherein in an embodiment, first interface 140 is the maternal interface of adaptive apple equipment.Owing to apple equipment being all configuration maternal interface, therefore the ancillary equipment for apple equipment is all generally arrange the public access eloquence matched to be convenient to and apple equipment connection, the interface equipment 100 of the present embodiment arranges maternal interface, thus is convenient to be connected with apple ancillary equipment.In another embodiment, first interface 140 also can be the public access mouth of adaptive apple equipment.
Second interface 160 can be any one in USB public access mouth, USB maternal interface, mini USB public access mouth, mini USB maternal interface, micro USB public access mouth, micro USB maternal interface.In one embodiment, the second interface 160 is USB public access mouth.Generally, usb host equipment all can configure USB maternal interface, and as desktop computer or notebook computer all configure USB maternal interface, therefore the second interface 160 is set to USB public access mouth, is convenient to interface equipment 100 and the usb host equipment connection of the present embodiment.
Wherein in an embodiment, first interface 140 comprises the first power line, and the first power line can be arranged on the inside of first interface 140.Second interface 160 comprises second source line, and second source line can be arranged on the inside of the second interface 160.First power line and second source line are electrically connected with voltage conversion circuit 120 respectively.The output voltage of the first power line is 3.3V, and the input voltage of second source line is 5V.
Further, wherein in an embodiment, voltage conversion circuit 120 can be LDO (Low DropoutRegulator, low pressure difference linear voltage regulator) change-over circuit.The advantage adopting LDO change-over circuit is that because it adopts one single chip to realize voltage conversion function, therefore its circuit volume can be less, thus make interface conversion equipment can make the form of patchcord, user-friendly.As the form that interface equipment 100 is patchcord, one end is first interface 140, the other end is the second interface 160, adopts transmission cable to connect between first interface 140 and the second interface 160, and LDO change-over circuit can be placed in the housing of first interface 140 or the second interface 160.
Although it is simple that LDO change-over circuit has circuit, the characteristic that volume is little, its conversion efficiency is lower, and in order to improve the conversion efficiency of voltage conversion circuit 120, in another embodiment, voltage conversion circuit 120 can also be DC/DC change-over circuit.As shown in Figure 2, DC/DC change-over circuit comprises reduction voltage circuit 122, the regulating circuit 124 be electrically connected with reduction voltage circuit 122.Because the 5V voltage that inputs from second source can't the 3.3V voltage of stable output standard after reduction voltage circuit 122 step-down, so the voltage also needing regulating circuit 124 pairs of reduction voltage circuits 122 to export adjusts, make the 3.3V voltage of its stable output.In the present embodiment, reduction voltage circuit 122 can adopt model to be the chip of AP2408, and regulating circuit 124 can adopt the resistance of the inductance of a 2.2UH, a 510K be connected with the inductance of 2.2UH and the resistance of a 110K be connected with the resistance of 510K.
Further, in order to the voltage making regulating circuit 124 export is more reliable and more stable, DC/DC change-over circuit can also comprise the filter circuit 126 be connected with regulating circuit 124, and filter circuit 126 can comprise the electric capacity of 1 15pF and the electric capacity of the 10 μ F be connected with the electric capacity of 15pF.
Further, DC/DC change-over circuit also comprises the 0 Ω resistance 128 be electrically connected with filter circuit 126 output, by arranging 0 Ω resistance 128, and can so that whether the output voltage of test DC/DC change-over circuit satisfies condition.Concrete, when testing, this resistance of only need dismantling can be tested, and can again this resistance welded be got on after testing.And if this resistance is not set, then need to disconnect the connecting circuit between filter circuit 126 and the first power line during test, this connecting circuit is generally wire, has tested rear needs and has re-established connection.The connection disconnected and re-establish wire has certain difficulty, is not easy to operation.
Wherein in an embodiment, interface equipment 100 is the form of keyset.Namely interface equipment 100 comprises printed circuit board (PCB), and voltage conversion circuit 120 arranges on a printed circuit, and first interface 140 and the second interface 160 are welded on the corresponding pad in the two ends of printed circuit board (PCB) respectively.
The interface equipment 100 of the present embodiment, the 5V voltage transitions that usb host equipment or USB power source equipment export can be become 3.3V voltage, thus usb host equipment or USB power source equipment can be powered to the ancillary equipment of apple equipment by interface equipment 100.In one embodiment, the first interface 140 of interface equipment 100 connects i Phone USB flash disk, second interface 160 connects usb host equipment, usb host equipment is powered to i Phone USB flash disk, thus make i Phone USB flash disk can carry out exchanges data with usb host equipment, be user-friendly to.
As shown in Figure 3, the interface system 10 of an execution mode comprises the interface equipment 100 shown in Fig. 1, Fig. 2.Interface system 10 also comprises the electronic equipment 200 be electrically connected with the first interface 140 of interface equipment 100, and the usb host equipment be electrically connected with the second interface 160 of interface equipment 100 or USB power source equipment 300.Electronic equipment 200 is the electronic equipment that the adapt voltages such as apple ancillary equipment are different from general USB device 300.Apple ancillary equipment can apple be mobile phone USB flash disk etc.Usb host equipment or USB power source equipment 300 are powered for can be other equipment.The output voltage of usb host equipment or USB power source equipment 300 is different from the adapt voltages of electronic equipment 200.Be the voltage of adaptive first interface 140 by the voltage transitions of the second interface 160 by voltage conversion circuit 120, thus USB device 300 can be powered to the electronic equipment 200 that adapt voltages is different from USB device 300.
In the present embodiment, interface equipment 100 can become 3.3V voltage the 5V voltage transitions that usb host equipment or USB power source equipment export, thus usb host equipment or USB power source equipment can be powered to the ancillary equipment of apple equipment by interface equipment 100.In one embodiment, the first interface 140 of interface equipment 100 connects i Phone USB flash disk, second interface 160 connects usb host equipment, usb host equipment is powered to i Phone USB flash disk, thus make i Phone USB flash disk can carry out exchanges data with usb host equipment, be user-friendly to.
Above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (7)
1. an interface equipment, it is characterized in that, comprise voltage conversion circuit, and the first interface be electrically connected with described voltage conversion circuit respectively and the second interface, described first interface is the interface adapting to electronic equipment, and described second interface is the interface adapting to USB device;
Described voltage conversion circuit is DC/DC change-over circuit, and described DC/DC change-over circuit comprises reduction voltage circuit and regulating circuit, and described reduction voltage circuit is electrically connected with described regulating circuit;
Regulating circuit comprises the resistance of the inductance of a 2.2UH, the resistance of a 510K be connected with the inductance of 2.2UH and a 110K be connected with the resistance of 510K.
2. interface equipment according to claim 1, is characterized in that, described first interface is the maternal interface of adaptive apple equipment or the public access mouth of adaptive apple equipment;
And/or described second interface is any one in USB public access mouth, USB maternal interface, mini USB public access mouth, mini USB maternal interface, micro USB public access mouth, micro USB maternal interface.
3. interface equipment according to claim 1, is characterized in that, described first interface comprises the first power line, and described second interface comprises second source line, and described first power line and described second source line are electrically connected with described voltage conversion circuit respectively; The output voltage of described first power line is 3.3V, and the input voltage of described second source line is 5V.
4. interface equipment according to claim 1, is characterized in that, described DC/DC change-over circuit also comprises the filter circuit be electrically connected with described regulating circuit output.
5. interface equipment according to claim 4, is characterized in that, described DC/DC change-over circuit also comprises the 0 Ω resistance be electrically connected with described filter circuit output.
6. the interface equipment according to any one of claim 1 to 5, it is characterized in that, described interface equipment comprises printed circuit board (PCB), described voltage conversion circuit is arranged on the printed circuit board, on the pad that described first interface is corresponding with the two ends that described second interface is welded on described printed circuit board (PCB) respectively.
7. an interface system, is characterized in that, comprises the interface equipment described in any one of claim 1 to 6;
Also comprise the electronic equipment be electrically connected with the first interface of described interface equipment, and the usb host equipment be electrically connected with the second interface of described interface equipment or USB power source equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420545240.5U CN204407655U (en) | 2014-09-22 | 2014-09-22 | Interface equipment and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420545240.5U CN204407655U (en) | 2014-09-22 | 2014-09-22 | Interface equipment and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204407655U true CN204407655U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420545240.5U Active CN204407655U (en) | 2014-09-22 | 2014-09-22 | Interface equipment and system |
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| CN (1) | CN204407655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870730A (en) * | 2016-05-24 | 2016-08-17 | 苏州奇才电子科技股份有限公司 | Voltage-transformation USB (universal serial bus) charging wire harness for automobile |
-
2014
- 2014-09-22 CN CN201420545240.5U patent/CN204407655U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870730A (en) * | 2016-05-24 | 2016-08-17 | 苏州奇才电子科技股份有限公司 | Voltage-transformation USB (universal serial bus) charging wire harness for automobile |
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| CP01 | Change in the name or title of a patent holder |
Address after: 518057 A, B, C, D, E, F1, 8 Building, Financial Services Technology Innovation Base, No. 8 Kefa Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen jiangbolong electronic Limited by Share Ltd Address before: 518057 A, B, C, D, E, F1, 8 Building, Financial Services Technology Innovation Base, No. 8 Kefa Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen jiangbolong Electronic Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |