CN101840726A - Multifunctional usb flash disk - Google Patents
Multifunctional usb flash disk Download PDFInfo
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- CN101840726A CN101840726A CN201010103469A CN201010103469A CN101840726A CN 101840726 A CN101840726 A CN 101840726A CN 201010103469 A CN201010103469 A CN 201010103469A CN 201010103469 A CN201010103469 A CN 201010103469A CN 101840726 A CN101840726 A CN 101840726A
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- circuit
- rechargeable battery
- charging
- memory read
- flash disk
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Abstract
The invention discloses a multifunctional USB flash disk comprising a USB interface circuit, a charging circuit, a rechargeable battery, a discharging circuit and a memory read-write circuit. The input end of the USB interface circuit is connected with a computer, and the output end is connected with the charging circuit which is used for charging the rechargeable battery; the discharging circuit is used for charging a cellphone by using electric energy stored by the rechargeable battery; a memory read-write management unit is used for controlling a data storage unit to read and write data; the memory read-write circuit is connected with the computer through the USB interface circuit; and the computer performs read-write operation on a memory which is connected with the memory read-write circuit through the memory read-write circuit. The multifunctional USB flash disk can be modified into a special USB flash disk which can charge a cellphone and is also an emergency power supply of the cellphone from a common USB flash disk without changing the traditional function of the USB flash disk, thereby successfully solving the embarrassment and the trouble during power failure of the cellphone. The invention has the advantages of small size, low cost and convenient manufacture.
Description
Technical field
The present invention relates to the USB flash disk production technical field, refer in particular to a kind of a kind of Multifunctional U disk that file memory function can be given cell-phone charging simultaneously again that has.
Background technology
Along with the progressively development of science and technology, mobile phone and USB flash disk more and more become indispensable part in our life.Mobile phone is used for keeping in touch with the people at any time, and USB flash disk then can be carried vital document.That has and does not have such thing the two connects with this, be carrying of let us more convenient? we have expected the two-in-one function USB flash disk that this is special thus.It not only possesses the storage capacity of USB flash disk, also can use its built-in rechargeable battery to replenish electric weight for your mobile phone whenever and wherever possible simultaneously; When inserting computer use USB flash disk, can give built-in rechargeable battery charging again, allow you all carry a light and handy emergent charger for cell phone at any time.
Summary of the invention
The problem to be solved in the present invention provides a kind of Multifunctional U disk, it can be on the basis that does not change the USB flash disk original function be revised as common U, and to can be cell-phone charging also be the special USB flash disk of mobile phone emergency power pack simultaneously, thereby successfully solved embarrassment and trouble when mobile phone does not have electricity.
For achieving the above object, technical solution of the present invention is:
A kind of Multifunctional U disk circuit, described circuit comprise usb circuit, charging circuit, rechargeable battery, discharge circuit and memory read write circuit;
The input end of described usb circuit is connected with computer, and output terminal is connected with described charging circuit, comprises the 5V power pins in the described usb circuit;
Described charging circuit is used to described rechargeable battery charging, and described charging circuit comprises the EUP8054 chip, and its power input connects the 5V power pins in the described usb circuit, and output terminal connects the positive pole of rechargeable battery;
Described discharge circuit is used to utilize the rechargeable battery electric energy stored to be cell-phone charging, comprise discharge switch, discharge control chip and commutation diode, one end of discharge switch is connected with the positive pole of rechargeable battery, the other end is connected with the input end of discharge control chip, the positive pole of commutation diode is connected with the output terminal of discharge control chip, and negative pole is connected with the anode of mobile phone to be charged;
Described memory read write circuit is connected with computer by described usb circuit, and the computer expert crosses the described memory read write circuit pair storer that is connected with described memory read write circuit and carries out read-write operation.
Further, described rechargeable battery is a lithium battery.
After adopting such scheme, a kind of Multifunctional U disk among the present invention, can be on the basis that does not change the USB flash disk original function common U be revised as that to can be cell-phone charging also be the special USB flash disk of mobile phone emergency power pack simultaneously, thereby embarrassment and trouble when mobile phone does not have electricity have successfully been solved, volume is little, and cost is low, easy to make.
Description of drawings
Fig. 1 is the circuit theory diagrams of the usb circuit of a kind of Multifunctional U disk of the present invention;
Fig. 2 is the circuit theory diagrams of the charging circuit of a kind of Multifunctional U disk of the present invention;
Fig. 3 is the circuit theory diagrams of the rechargeable battery of a kind of Multifunctional U disk of the present invention;
Fig. 4 is the circuit theory diagrams of the discharge circuit of a kind of Multifunctional U disk of the present invention;
Fig. 5 is the circuit theory diagrams of the memory read write circuit of a kind of Multifunctional U disk of the present invention.
Fig. 6 is a kind of Multifunctional U disk structural representation of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with drawings and embodiments:
A kind of Multifunctional U disk circuit comprises usb circuit, charging circuit, rechargeable battery, discharge circuit and memory read write circuit; The input end of usb circuit is connected with computer, and output terminal is connected with charging circuit, comprises the 5V power pins in the usb circuit;
Charging circuit is used to the rechargeable battery charging, and charging circuit comprises the EUP8054 chip, and its power input connects the 5V power pins in the usb circuit, and output terminal connects the positive pole of rechargeable battery;
Discharge circuit is used to utilize the rechargeable battery electric energy stored to be cell-phone charging, comprise discharge switch, discharge control chip and commutation diode, one end of discharge switch is connected with the positive pole of rechargeable battery, the other end is connected with the input end of discharge control chip, the positive pole of commutation diode is connected with the output terminal of discharge control chip, and negative pole is connected with the anode of mobile phone to be charged;
The memory read write circuit is connected with computer by usb circuit, and the computer expert crosses the memory read write circuit pair storer that is connected with the memory read write circuit and carries out read-write operation.
Rechargeable battery is a lithium battery.
When built-in rechargeable battery is charged, connect input current by standard USB interface and arrive battery storage after treatment to the Charge Management center, charging finishes and directly ends.
When using,, the electric energy of battery is converted to 5.5V 500 MAHs carries out mobile phone through output interface and dash by DC-DC discharge administrative center as the mobile phone emergency function.
USB interface by the PC standard can be directly connected to storing media read-write and the access data that read-write card administrative center can connect flash memory or card reader.
After adopting such scheme, a kind of Multifunctional U disk among the present invention, can be on the basis that does not change the USB flash disk original function common U be revised as that to can be cell-phone charging also be the special USB flash disk of mobile phone emergency power pack simultaneously, thereby embarrassment and trouble when mobile phone does not have electricity have successfully been solved, volume is little, and cost is low, easy to make.
Described only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a Multifunctional U disk is characterized in that, described circuit comprises usb circuit, charging circuit, rechargeable battery, discharge circuit and memory read write circuit;
The input end of described usb circuit is connected with computer, and output terminal is connected with described charging circuit, comprises the 5V power pins in the described usb circuit;
Described charging circuit is used to described rechargeable battery charging, and described charging circuit comprises the EUP8054 chip, and its power input connects the 5V power pins in the described usb circuit, and output terminal connects the positive pole of rechargeable battery;
Described discharge circuit is used to utilize the rechargeable battery electric energy stored to be cell-phone charging, comprise discharge switch, discharge control chip and commutation diode, one end of discharge switch is connected with the positive pole of rechargeable battery, the other end is connected with the input end of discharge control chip, the positive pole of commutation diode is connected with the output terminal of discharge control chip, and negative pole is connected with the anode of mobile phone to be charged;
Described memory read write circuit is connected with computer by described usb circuit, and the computer expert crosses the described memory read write circuit pair storer that is connected with described memory read write circuit and carries out read-write operation.
2. Multifunctional U disk as claimed in claim 1 is characterized in that, described rechargeable battery is a lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103469A CN101840726A (en) | 2010-02-01 | 2010-02-01 | Multifunctional usb flash disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103469A CN101840726A (en) | 2010-02-01 | 2010-02-01 | Multifunctional usb flash disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101840726A true CN101840726A (en) | 2010-09-22 |
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ID=42744051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010103469A Pending CN101840726A (en) | 2010-02-01 | 2010-02-01 | Multifunctional usb flash disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101840726A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629774A (en) * | 2012-04-18 | 2012-08-08 | 北京人本幸福科技文化有限公司 | Charging vehicle |
| CN103605624A (en) * | 2013-10-23 | 2014-02-26 | 苏州佳世达电通有限公司 | Communication device |
| CN103945057A (en) * | 2014-03-25 | 2014-07-23 | 深圳市江波龙电子有限公司 | USB flash disk and working system, working mode switching method and data communication method thereof |
| CN103902490B (en) * | 2014-03-11 | 2017-06-27 | 深圳市江波龙电子有限公司 | USB flash disk and its work system, mode switching method, data communications method |
| WO2017125052A1 (en) * | 2016-01-19 | 2017-07-27 | 深圳市金田创新科技有限公司 | Storage device having quick-charge function and scalable card-reading storage device |
| CN108494069A (en) * | 2018-05-23 | 2018-09-04 | 江苏金智酷电子科技有限公司 | A kind of charger with voltage detecting function |
-
2010
- 2010-02-01 CN CN201010103469A patent/CN101840726A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629774A (en) * | 2012-04-18 | 2012-08-08 | 北京人本幸福科技文化有限公司 | Charging vehicle |
| CN103605624A (en) * | 2013-10-23 | 2014-02-26 | 苏州佳世达电通有限公司 | Communication device |
| CN103902490B (en) * | 2014-03-11 | 2017-06-27 | 深圳市江波龙电子有限公司 | USB flash disk and its work system, mode switching method, data communications method |
| CN103945057A (en) * | 2014-03-25 | 2014-07-23 | 深圳市江波龙电子有限公司 | USB flash disk and working system, working mode switching method and data communication method thereof |
| CN103945057B (en) * | 2014-03-25 | 2016-05-04 | 深圳市江波龙电子有限公司 | USB flash disk and work system thereof, mode switching method, data communications method |
| WO2017125052A1 (en) * | 2016-01-19 | 2017-07-27 | 深圳市金田创新科技有限公司 | Storage device having quick-charge function and scalable card-reading storage device |
| CN108494069A (en) * | 2018-05-23 | 2018-09-04 | 江苏金智酷电子科技有限公司 | A kind of charger with voltage detecting function |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100922 |