CN203942318U - A kind of portable power source that is plugged with TF card - Google Patents
A kind of portable power source that is plugged with TF card Download PDFInfo
- Publication number
- CN203942318U CN203942318U CN201420368637.1U CN201420368637U CN203942318U CN 203942318 U CN203942318 U CN 203942318U CN 201420368637 U CN201420368637 U CN 201420368637U CN 203942318 U CN203942318 U CN 203942318U
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- CN
- China
- Prior art keywords
- card
- usb interface
- plugged
- power source
- portable 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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Abstract
The utility model discloses a kind of portable power source of the TF of being plugged with card, it includes the first USB interface, charging circuit, battery and at least one secondary USB interface connecting successively, data terminal from the first USB interface is connected with TF card drive circuit and TF draw-in groove in turn, in TF draw-in groove, be plugged with TF card, TF card drive circuit is stored in TF card for the data that the first USB interface is received and reads the data in TF card and transfer to the first USB interface.Wherein, TF card is plugged in TF draw-in groove, the first USB interface is used for connecting computer, the feeder ear of this first USB interface charges to battery by charging circuit, the data that the data terminal of the first USB interface sends for receiving computer, are stored to TF card by TF card drive circuit by these data, or by the transfer of data of storing in TF card to computer, make portable power source possess charging and memory function simultaneously, thereby be easy to carry.
Description
Technical field
The utility model relates to portable power source, relates in particular to a kind of portable power source of the TF of being plugged with card.
Background technology
Portable power source is to integrate power supply and the compact power of charge function, can charge whenever and wherever possible or standby is powered to digital equipments such as mobile phones, generally by lithium cell as charge storage unit, use procedure is convenient and swift.Digital product in use, except charging at any time, toward contact meeting, use TF card, when being connected with computer, TF card need to connect by the data wire of card reader and customization, cause user when carrying portable power source, electric power connection line, also need to carry card reader, data wire and bring inconvenience.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of portable power source of saving data wire, being easy to carry, being plugged with TF card.
For solving the problems of the technologies described above, the utility model adopts following technical scheme.
A kind of portable power source that is plugged with TF card, it includes the first USB interface, charging circuit, battery and at least one secondary USB interface connecting successively, data terminal from the first USB interface is connected with TF card drive circuit and TF draw-in groove in turn, in described TF draw-in groove, be plugged with TF card, described TF card drive circuit is stored in TF card for the data that the first USB interface is received and reads the data in TF card and transfer to the first USB interface.
Preferably, also include a main control unit, described main control unit is connected in charging circuit, and described main control unit is used for gathering the output current of battery, and whether controls charging circuit work according to this output current.
Preferably, also include an indicator unit, described indicator unit is connected in main control unit, and described indicator unit is the charged state of pilot cell for receiving control command that main control unit sends.
Preferably, the quantity of described secondary USB interface is two.
The utility model is disclosed to be plugged with in the portable power source of TF card, TF card is plugged in TF draw-in groove, the first USB interface is used for connecting computer, the feeder ear of this first USB interface charges to battery by charging circuit, the data that the data terminal of the first USB interface sends for receiving computer, by TF card drive circuit, these data are stored to TF card, or read the data of storage in TF card and transfer to computer, make portable power source possess charging and memory function simultaneously, thereby saving data wire, is easy to carry.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of the utility model portable power source.
Fig. 2 is the local circuit schematic diagram one of portable power source charging major loop.
Fig. 3 is the local circuit schematic diagram two of portable power source charging major loop.
Fig. 4 is the circuit theory diagrams of TF card drive circuit.
Fig. 5 is the circuit theory diagrams of main control unit.
Fig. 6 is the circuit theory diagrams of indicator unit.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in more detail.
The invention discloses a kind of portable power source of the TF of being plugged with card, as shown in Figure 1, it includes the first usb 1, charging circuit 2, battery 3 and at least one secondary USB interface 4 connecting successively, preferably two of the quantity of described secondary USB interface 4, data terminal from the first usb 1 is connected with TF card drive circuit 5 and TF draw-in groove 6 in turn, in described TF draw-in groove 6, be plugged with TF card, described TF card drive circuit 5 is stored in TF card for the data that the first usb 1 is received and reads the data in TF card and transfer to the first usb 1.
TF draw-in groove 6 on this portable power source TF card of can pegging graft, the first usb 1 is used for connecting computer, the feeder ear of this first usb 1 is by 3 chargings of 2 pairs of batteries of charging circuit, the data that the data terminal of the first usb 1 sends for receiving computer, by TF card drive circuit 5, these data are stored to TF card, or read the data of storage in TF card and transfer to computer, make portable power source possess charging and memory function simultaneously, thereby saving data wire, is easy to carry.
For the electric weight of monitoring battery 3 and the charged state of controlling charging circuit 2, this portable power source also includes a main control unit 7, described main control unit 7 is connected in charging circuit 2, described main control unit 7 is for gathering the output current of battery 3, and according to this output current, control charging circuit 2 and whether work, and then realize the charging controller to battery 3.
As a kind of optimal way, this portable power source also includes an indicator unit 8, described indicator unit 8 is connected in main control unit 7, and described indicator unit 8 is for the control command that receives main control unit 7 and send and the charged state of pilot cell 3 is convenient to user and is observed this charged state.
The circuit theory diagrams of above-mentioned portable power source charging major loop as shown in Figures 2 and 3, charging circuit 2 includes field effect transistor M1～M3, described main control unit 7 is controlled respectively the break-make of field effect transistor M1～M3 by output pulse signal, and then the charged state of control battery 3, when the first usb 1 is connected in computer, the voltage of this first USB interface feeder ear can directly transfer to secondary USB interface 4, and does not affect the charged state of charging circuit 2.The charging voltage required due to different digital products is different, therefore, between the output of battery 3 and two secondary USB interfaces 4, be also respectively equipped with identification chip U2 and U4, utilize kind that this identification chip U2 and U4 can identification number code product, model etc., by controlling the break-make of field effect transistor M5 or M9, make corresponding voltage transitions again, make battery 3 provide suitable charging voltage for digital product.Please refer to Fig. 2, Fig. 3 and Fig. 5, main control unit 7 includes main control chip U1 and peripheral circuit thereof.This main control chip U1 controls the on off operating mode of field effect transistor M2 and M3 by output pwm pulse signal.Please refer to Fig. 2 and Fig. 4, TF card drive circuit 5 includes TF card and drives chip U5 and peripheral circuit thereof, this TF card drives input DM, the DP of chip U5 to be connected in the data terminal of the first usb 1, this TF card drives output CMD/BS, the CLK of chip U5 to be connected in TF draw-in groove 6, and then connects with TF card.In the present embodiment, please refer to Fig. 5 and Fig. 6, indicator unit 8 includes a plurality of LED light, and a plurality of LED light are all controlled by main control chip U1 and send light prompt.
In conjunction with the above, can find out, the disclosed portable power source that is plugged with TF card of the utility model possesses charging and memory function simultaneously, thereby saves data wire, is easy to carry.In addition, this portable power source also has the function of identification number code product kind, model, and again, the main control chip U1 that this portable power source adopts and TF card drive chip U5 to be mainstream chip on the market, not only multiple functional but also cheap.
The above is the utility model preferred embodiment, is not limited to the utility model, all modifications of making in technical scope of the present utility model, is equal to and replaces or improvement etc., all should be included in the scope that the utility model protects.
Claims (4)
1. a portable power source that is plugged with TF card, it is characterized in that, include the first USB interface, charging circuit, battery and at least one secondary USB interface that connect successively, data terminal from the first USB interface is connected with TF card drive circuit and TF draw-in groove in turn, in described TF draw-in groove, be plugged with TF card, described TF card drive circuit is stored in TF card for the data that the first USB interface is received and reads the data in TF card and transfer to the first USB interface.
2. the portable power source that is plugged with TF card as claimed in claim 1, it is characterized in that, also include a main control unit, described main control unit is connected in charging circuit, described main control unit is used for gathering the output current of battery, and whether controls charging circuit work according to this output current.
3. the portable power source that is plugged with TF card as claimed in claim 2, it is characterized in that, also include an indicator unit, described indicator unit is connected in main control unit, and described indicator unit is the charged state of pilot cell for receiving control command that main control unit sends.
4. the portable power source that is plugged with TF card as claimed in claim 1, is characterized in that, the quantity of described secondary USB interface is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420368637.1U CN203942318U (en) | 2014-07-03 | 2014-07-03 | A kind of portable power source that is plugged with TF card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420368637.1U CN203942318U (en) | 2014-07-03 | 2014-07-03 | A kind of portable power source that is plugged with TF card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203942318U true CN203942318U (en) | 2014-11-12 |
Family
ID=51861607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420368637.1U Expired - Fee Related CN203942318U (en) | 2014-07-03 | 2014-07-03 | A kind of portable power source that is plugged with TF card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203942318U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110197247A (en) * | 2018-02-27 | 2019-09-03 | 桓科股份有限公司 | Power supply Portable disk |
| CN114546904A (en) * | 2021-12-27 | 2022-05-27 | 南京微智新科技有限公司 | Circuit for expanding screen memory capacity through USB (universal serial bus) to eMMC (enhanced multimedia card controller) |
-
2014
- 2014-07-03 CN CN201420368637.1U patent/CN203942318U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110197247A (en) * | 2018-02-27 | 2019-09-03 | 桓科股份有限公司 | Power supply Portable disk |
| CN114546904A (en) * | 2021-12-27 | 2022-05-27 | 南京微智新科技有限公司 | Circuit for expanding screen memory capacity through USB (universal serial bus) to eMMC (enhanced multimedia card controller) |
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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: 20141112 Termination date: 20210703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |