CN201262745Y - Portable computer external device - Google Patents
Portable computer external device Download PDFInfo
- Publication number
- CN201262745Y CN201262745Y CNU2008201087801U CN200820108780U CN201262745Y CN 201262745 Y CN201262745 Y CN 201262745Y CN U2008201087801 U CNU2008201087801 U CN U2008201087801U CN 200820108780 U CN200820108780 U CN 200820108780U CN 201262745 Y CN201262745 Y CN 201262745Y
- Authority
- CN
- China
- Prior art keywords
- port
- usb
- external unit
- usb port
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The utility model provides a portable peripheral computer device which comprises a USB port of the peripheral device, a power source port that is electrically connected with a computer USB port, and a circuit balancing module that is connected with the power source port, a first voltage supplying port that is arranged inside the peripheral device and the USB port of the peripheral device; wherein, the USB port of the peripheral device is connected with a second voltage supplying port that is arranged inside the peripheral device. The portable peripheral computer device affords current input through two balanced USB wires, thus achieving the purpose of the electric current no larger than 500mA, circuit with additional current balancing design can lead the peripheral USB device to work with connection of only a USB data wire, and power is not supplied when a USB power source wire is separately inserted, thus achieving effect of saving energy and avoiding customer misguidance.
Description
Technical field
The utility model relates to computer realm, particularly relates to a kind of portable computer peripheral.
Background technology
Unified day by day along with the computer peripheral equipment standard, most of computer peripheral all is connected with computing machine by USB port, for example portable hard drive, flash memory, MP3 player, digital camera or the like, and common computer also generally all is provided with plural USB port.And USB port not only can be born the data transmission between computing machine and peripheral hardware, can also make computing machine provide the peripheral hardware operation required electric power, perhaps for having the peripheral hardware charging (for example MP3 player) of rechargeable battery.
The electric current of the USB line of existing USB standard (USB SPEC) defined is to be no more than 500mA, and the working current during present traditional USB portable hard drive operate as normal is about 900mA, and working current had just surpassed the 500mA of USB SPEC regulation when therefore the USB lineman of a single portable hard drive did.In the process that realizes technical solutions of the utility model, find that the duty of this Over current (excess current) is brought following two problems to I haven't seen you for ages:
Problem 1, under the situation of only powering with the USB port of computer system, can't be by sign (LOGO) test of USB.
Problem 2, for a long time the USB port in computer system grasps the electric current that surpasses 500mA, can cause potential influence to the USB device of main frame and other operate as normal, even problem such as can cause crashing, restart, when a main frame is plugged other a plurality of USB device, can make situation more serious.
Existing solution: add a power supply adaptor, adopt the mode of Self-POWER (self-powered) that the USB portable hard drive is powered.
The shortcoming of this scheme is: increases power supply adaptor and can significantly increase cost, and can bring the inconvenience in the use, and the environment for use that not only needed external AC power supplies port limit, and reduced the portability of portable hard drive.
The utility model content
The purpose of the utility model embodiment provides a kind of portable computer peripheral, make the USB of high power consumption be located under the situation that does not increase the externally fed adapter and can under the USB standard, work outward, solve the technical matters that causes the system works instability or crash because working current surpasses 500mA.
To achieve these goals, provide a kind of portable computer peripheral, comprised the USB port of external unit, also comprised:
The power port that can be electrically connected with the USB port of computing machine;
The circuit balancing module connects the USB port that first of voltage in the described power port, described external unit provides end and described external unit;
The USB port of described external unit connects second of the interior voltage of described external unit provides end.
Preferably, described circuit balancing module is for described power port and described first gauge tap that provides between the end are provided, and the control end of described gauge tap connects the USB port of described external unit.
Preferably, described power port is for providing galvanic direct supply port.
Preferably, described external unit is portable hard drive, digital camera or PDA.
Preferably, described first voltage that provides end to provide is 5V, and described second voltage that provides end to provide is 5V.
Preferably, described external unit also comprises: usb data line, the USB port coupling of an end and described external unit, the USB port coupling of the other end and described computing machine.
Preferably, described external unit also comprises power lead, and an end of described power lead is and first port of described power port coupling that the other end of described power lead is second port that mates with the USB port of described computing machine.
There is following technique effect at least in the utility model embodiment:
1) by the burden electric current input of two USB lines equilibrium,, meets the standard of USB, can not work the mischief equipment and main frame to reach the purpose that all is no more than 500mA.
The purpose that the circuit of the current balance type design that 2) increases can accomplish to allow the external equipment of USB also can work when having only a usb data line to connect.Can not power and insert the USB power lead separately, reach energy-conservation and avoid misleading client's effect.
Description of drawings
The stereographic map of the external unit that Fig. 1 provides for the utility model embodiment;
The circuit diagram of the external unit that Fig. 2 provides for the utility model embodiment.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment is clearer, specific embodiment is described in detail below in conjunction with accompanying drawing.
The utility model embodiment, power by adopting an other USB DC POWER (direct supply) line, the needed electric current of external unit is split on usb data line and this direct current supply line, and on circuit, increase the circuit design make current balance type, make two lines all be no more than current standard like this, can be issued to the requirement of USB standard in low cost.
The stereographic map of the external unit that Fig. 1 provides for the utility model embodiment, as shown in the figure, external unit 100 comprises USB port 102, also comprises: power port 101, it can be electrically connected the USB port S1 or the S2 of computing machine 200.
Like this, two ports (USB port 102, power port 101) can be powered for external unit, have shared the required electric current total amount of external unit, and the electric current of each port is reduced, thereby satisfy the requirement of USB standard.
Because described power port 101 is to obtain electric power from the USB port S1 of computing machine or S2, so power port 101 is for providing galvanic direct supply port.And an end of power lead 300 is and the first port D1 of described power port 101 couplings, and the other end of power lead is and the USB port S1 of described computing machine and/or second port of S2 coupling.
One end D2 of usb data line 400 and the USB port of described external unit coupling, the USB port S1 of the other end and described computing machine and/or S2 coupling.
The circuit diagram of the external unit that Fig. 2 provides for the utility model embodiment is as figure.Also include circuit balancing module 500 in the external unit.
As can be known, in the circuit of external unit, include two voltages end is provided from the circuit diagram: first of voltage provides end 601 and second that end 602 is provided, and is used for electric to external unit.
The effect of circuit balancing module 500 is:
1) have under the situation of external voltage in USB port 102, allow power port 101 to be communicated with first end 601 is provided, such two ports can be worked.Certainly, if do not connect power lead 300, then have only USB port 102 to provide end 602 power supplies for second.
2) do not have under the voltage condition in USB port 102, do not allow power port 101 to be communicated with first end 601 is provided, this is that external unit can not carry out the transmission of data and signal because USB port 102 has the voltage explanation, external unit can not be worked, at this moment, prevent simple powering with power port 101.
In concrete use:
1) insert power lead 300 separately, because the design of balancing circuitry, voltage first provides end 601 and voltage second to provide end 602 all to disconnect, and external unit 100 is not worked, and does not also have the consumption of energy.
2) insert usb data line 400 separately, undertake transmission signals and power supply supply by USB port 102.At this time external unit 100 also can be worked, but can grasp the electric current that surpasses 500mA from the USB port S1 or the S2 of main frame, reaches 900mA, the regulation that surpasses USB-IF, under the situation that also has other USB device to exist, may cause some influences,, restart etc. as crashing to main frame.Can cause damage to USB port under situation is serious.But embodiment of the present utility model can remind user's use of not behaving like this.
3), successively insert two USB lines according to the prompting of the utility model embodiment.Voltage first provides end 601 and voltage second to provide the end 602 all can conducting, common powering load.Like this, each USB mouth of computing machine only with the electric current that is no more than 500mA is provided, meets the standard of USB fully.And to use without any influence.
Wherein, circuit balancing module 500 can have multiple implementation, for example, is set to be connected described power port 101 and described first gauge tap of holding between 601 is provided, and the control end of gauge tap connects the USB port 102 of described external unit.
Described external unit 100 is high power consumption USB portable peripherals, needs bigger supply current, for example can be portable hard drive, digital camera or PDA (personal digital assistant) or the like.Described first voltage that provides end to provide is generally 5V, and described second voltage that provides end to provide generally also is 5V.
As from the foregoing, adopt the utility model embodiment advantage afterwards to be:
1) by the burden electric current input of two USB lines equilibrium,, meets the standard of USB, can not work the mischief equipment and main frame to reach the purpose that all is no more than 500mA.
The purpose that the circuit of the current balance type design that 2) increases can accomplish to allow the external equipment of USB also can work when having only a usb data line to connect.Can not power and insert the USB power lead separately, reach energy-conservation and avoid misleading client's effect.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. portable computer peripheral comprises it is characterized in that the USB port of external unit, also comprises:
The power port that can be electrically connected with the USB port of computing machine;
The circuit balancing module connects the USB port that first of voltage in the described power port, described external unit provides end and described external unit;
The USB port of described external unit connects second of the interior voltage of described external unit provides end.
2. external unit according to claim 1 is characterized in that, described circuit balancing module is for described power port and described first gauge tap that provides between the end are provided, and the control end of described gauge tap connects the USB port of described external unit.
3. according to claim or 1 described external unit, it is characterized in that described power port is for providing galvanic direct supply port.
4. external unit according to claim 1 is characterized in that, described external unit is portable hard drive, digital camera or PDA.
5. external unit according to claim 1 is characterized in that, described first voltage that provides end to provide is 5V, and described second voltage that provides end to provide is 5V.
6. external unit according to claim 1 is characterized in that, also comprises: usb data line, the USB port coupling of an end and described external unit, the USB port coupling of the other end and described computing machine.
7. external unit according to claim 1 is characterized in that, also comprises power lead, and an end of described power lead is and first port of described power port coupling that the other end of described power lead is second port that mates with the USB port of described computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201087801U CN201262745Y (en) | 2008-06-23 | 2008-06-23 | Portable computer external device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201087801U CN201262745Y (en) | 2008-06-23 | 2008-06-23 | Portable computer external device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201262745Y true CN201262745Y (en) | 2009-06-24 |
Family
ID=40809221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201087801U Expired - Fee Related CN201262745Y (en) | 2008-06-23 | 2008-06-23 | Portable computer external device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201262745Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694659A (en) * | 2012-05-28 | 2012-09-26 | 华中科技大学 | System capable of realizing wireless passthrough of Ad Hoc network USB port data |
| CN102855518A (en) * | 2011-06-30 | 2013-01-02 | 华为终端有限公司 | Data card, rotating head of data card, and data card body |
| CN104967765A (en) * | 2015-07-02 | 2015-10-07 | 李永臣 | External power supply of high-end camera digital back |
| CN105119330A (en) * | 2015-08-24 | 2015-12-02 | 联想(北京)有限公司 | Power adapter and power supply method |
-
2008
- 2008-06-23 CN CNU2008201087801U patent/CN201262745Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102855518A (en) * | 2011-06-30 | 2013-01-02 | 华为终端有限公司 | Data card, rotating head of data card, and data card body |
| CN102855518B (en) * | 2011-06-30 | 2016-05-25 | 华为终端有限公司 | The swivel head of data card, data card and data card body |
| CN102694659A (en) * | 2012-05-28 | 2012-09-26 | 华中科技大学 | System capable of realizing wireless passthrough of Ad Hoc network USB port data |
| CN104967765A (en) * | 2015-07-02 | 2015-10-07 | 李永臣 | External power supply of high-end camera digital back |
| CN104967765B (en) * | 2015-07-02 | 2018-10-26 | 李永臣 | The external power supply of high-end cameras digital back |
| CN105119330A (en) * | 2015-08-24 | 2015-12-02 | 联想(北京)有限公司 | Power adapter and power supply method |
| CN105119330B (en) * | 2015-08-24 | 2021-11-16 | 联想(北京)有限公司 | Power adapter and power supply method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20170623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |