CN202353259U - USB (universal serial bus) charger for mobile phone - Google Patents
USB (universal serial bus) charger for mobile phone Download PDFInfo
- Publication number
- CN202353259U CN202353259U CN2011204982190U CN201120498219U CN202353259U CN 202353259 U CN202353259 U CN 202353259U CN 2011204982190 U CN2011204982190 U CN 2011204982190U CN 201120498219 U CN201120498219 U CN 201120498219U CN 202353259 U CN202353259 U CN 202353259U
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- CN
- China
- Prior art keywords
- mobile phone
- usb
- charger
- charge
- circuit
- 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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a USB (universal serial bus) charger for a mobile phone, and the USB charger comprises a stabilized voltage supply and a USB interface, wherein the stabilized voltage supply is used for converting an alternating current into a plus 5V direct current; and the USB interface is used for outputting a plus 5V voltage. The USB charger for the mobile phone is characterized by further comprising a rechargeable battery, wherein the positive pole and negative pole of the rechargeable battery are connected with the output end of the stabilized voltage supply respectively. The USB charger for the mobile phone further comprises a charge detection circuit which is used for controlling whether a charge circuit is charged according to the output of the USB interface. The charge detection circuit is an intelligent integrated chip which is used for controlling charge and discharge, circuit protection and power saving in a non-operating state. The USB interface is further arranged on the charge circuit of the rechargeable battery, so that charge can be performed via a computer. The alternating current is 110-220 V. The USB charger for the mobile phone disclosed by the utility model can be used for solving the requirement of emergency charge for the mobile phone in case of no power supply of an external alternating current by virtue of additionally arranging a design of a charge part.
Description
Technical field
The utility model relates to a kind of charger for mobile phone, particularly a kind of USB charger for mobile phone that has the emergent charging function.
Background technology
All charger for mobile phone all be by a stabilized power supply (mainly be stabilized voltage power supply, provide stable operating voltage and enough electric currents) add necessary constant current, pressure limiting, control circuit such as prescribe a time limit constitutes.
Present USB charger for mobile phone under the situation that does not have the external AC power supply, can not use, and has limited the requirement of cell-phone charging.
The utility model content
The purpose of the utility model is, overcomes the restriction that existing USB charger for mobile phone can only the external AC charging, thereby improves a kind of USB charger for mobile phone, increased rechargeable battery, can carry out emergent charging.
For realizing above-mentioned purpose, a kind of USB charger for mobile phone that the utility model provides comprises: stabilized voltage power supply and USB interface; Described stabilized voltage power supply is used for converting alternating current into positive 5V direct current; Described USB interface is used to export positive 5V voltage, it is characterized in that: described USB charger for mobile phone also includes rechargeable battery, and its both positive and negative polarity connects the output of stabilized voltage power supply respectively.
As a kind of improvement of technique scheme, described USB charger for mobile phone also further includes a charging testing circuit, is used for the output according to USB interface, and whether control charges to charging circuit.Described charging testing circuit is an intelligent integrated chip, be used for detecting that charge-discharge circuit, control discharge and recharge, circuit protection and off position energy-conservation.
As a kind of improvement of technique scheme, also be provided with USB interface on the charging circuit of described rechargeable battery, can charge through computer.
As a kind of improvement of technique scheme, described alternating current is 110～220V.
The utility model is through USB electric power output interface, and the equipment that all support the USB charging comprises PDA/MP3PLAYER/MP4PLAYER/DIGITAL CAMERA/CELL PHONE/PSP etc., can from charge power supply, carry out emergent charging at any time.
The advantage of the utility model is: the USB charger for mobile phone of the utility model, increased the design of live part, and under the situation that does not have the external AC power supply, the requirement that can solve the mobile phone emergent charging.
Description of drawings
Below, specify the embodiment of the utility model in conjunction with accompanying drawing, wherein:
Fig. 1 is the principle schematic of the USB charger for mobile phone of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
As shown in Figure 1, the USB charger for mobile phone of the utility model comprises: stabilized voltage power supply and USB interface; Described stabilized voltage power supply is used for converting alternating current into positive 5V direct current; Described USB interface is used to export positive 5V voltage, and described USB charger for mobile phone also includes rechargeable battery, and its both positive and negative polarity connects the output of stabilized voltage power supply respectively.
In this example, alternating current is 220V, and described USB charger for mobile phone also further includes a charging testing circuit, adopts an intelligent integrated chip, be used for controlling discharge and recharge, circuit protection and off position energy-conservation.
In addition, can also be provided with USB interface on the charging circuit of described rechargeable battery, can charge through computer.
It should be noted last that above embodiment is only unrestricted in order to the technical scheme of explanation the utility model.Although the utility model is specified with reference to embodiment; Those of ordinary skill in the art is to be understood that; The technical scheme of the utility model is made amendment or is equal to replacement; The spirit and the scope that do not break away from the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (5)
1. a USB charger for mobile phone comprises: stabilized voltage power supply and USB interface; Described stabilized voltage power supply is used for converting alternating current into positive 5V direct current; Described USB interface is used to export positive 5V voltage, it is characterized in that: described USB charger for mobile phone also includes rechargeable battery, and its both positive and negative polarity connects the output of stabilized voltage power supply respectively.
2. USB charger for mobile phone according to claim 1 is characterized in that: described USB charger for mobile phone also further includes a charging testing circuit, is used for the output according to USB interface, and whether control charges to charging circuit.
3. USB charger for mobile phone according to claim 3 is characterized in that: described charging testing circuit is an intelligent integrated chip, be used to detect charge-discharge circuit, control discharge and recharge, circuit protection and energy-conservation.
4. USB charger for mobile phone according to claim 1 is characterized in that: also be provided with USB interface on the charging circuit of described rechargeable battery.
5. USB charger for mobile phone according to claim 1 is characterized in that: described alternating current is 110～220V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204982190U CN202353259U (en) | 2011-12-02 | 2011-12-02 | USB (universal serial bus) charger for mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204982190U CN202353259U (en) | 2011-12-02 | 2011-12-02 | USB (universal serial bus) charger for mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353259U true CN202353259U (en) | 2012-07-25 |
Family
ID=46542223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204982190U Expired - Fee Related CN202353259U (en) | 2011-12-02 | 2011-12-02 | USB (universal serial bus) charger for mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353259U (en) |
-
2011
- 2011-12-02 CN CN2011204982190U patent/CN202353259U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121202 |