CN202916425U - Device for automatically identifying power supply loading capacity - Google Patents
Device for automatically identifying power supply loading capacity Download PDFInfo
- Publication number
- CN202916425U CN202916425U CN 201220506304 CN201220506304U CN202916425U CN 202916425 U CN202916425 U CN 202916425U CN 201220506304 CN201220506304 CN 201220506304 CN 201220506304 U CN201220506304 U CN 201220506304U CN 202916425 U CN202916425 U CN 202916425U
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- CN
- China
- Prior art keywords
- power supply
- connector
- controller module
- supply belt
- automatic identification
- 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
Links
- 230000002093 peripheral Effects 0.000 claims abstract description 4
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Abstract
A device for automatically identifying power supply loading capacity includes a controller module. The controller module comprises a controller and an analog-to-digital converter; the controller comprises a single-chip microcomputer; the controller further comprises a peripheral circuit connected with the single-chip microcomputer; the controller module is provided with an interface connected with an external load; the controller module is further provided with a connector connected with a power supply; the connector is a connector with a USB interface; a D+ pin of the connector is electrically connected with the controller module; a D- pin of the connector is also is electrically connected with the controller module; a VBUS pin of the connector is connected with an external power supply; and an ID pin of the connector is grounded.
Description
Technical field
The utility model relates to the device of an identification power supply, particularly relates to a kind of device of automatic identification Power supply belt loading capability.
Background technology
Now USB interface is used very generally, has on the computer, has on the charger, also has on a lot of other equipment.As everyone knows, different USB interface can provide different output currents, but user and do not know that this connects the load of much loads to USB interface.If low power USB interface is received in the load of large electric current, can cause the miniwatt USB interface to damage; If instead powerful USB interface is received in load, then can cause interface capability not given full play of.The user needs a kind of device that can automatically identify the Power supply belt loading capability badly.
The utility model content
The utility model wants the technical solution problem to be, a kind of device that can realize automatically identifying the Power supply belt loading capability is provided.
For solving above technical matters, the technical solution of the utility model is: a kind of device of automatic identification Power supply belt loading capability, comprise controller module, and its key is: described controller module comprises controller and analog to digital converter.
As improvement of the present utility model, described controller comprises single-chip microcomputer and the peripheral circuit that is connected with single-chip microcomputer, is provided with the interface that is connected with external loading at described controller module.
Further improve as the utility model, be provided with the connector that is connected with power supply at described controller module, described connector is the connector with USB interface.The D+ pin of described connector and described controller module are electrically connected.
Further improve as the utility model, the D-pin of described connector also is electrically connected with described controller module,
The VBUS pin of described connector is connected with external power source, the ID pin ground connection of described connector.
By implement the present invention desirable following beneficial effect:
The utility model can be realized the automatically load capacity of identification power supply by the voltage that detects the relevant pin of USB, can accomplish the intellectuality used, can give full play to again the ability of power supply, accomplish the electric energy that takes full advantage of USB interface output under the prerequisite of power supply guaranteeing not damage.The utility model is skillfully constructed, and this function is very practical, is with a wide range of applications.
Description of drawings
The utility model is described in more detail below in conjunction with Figure of description, wherein:
Fig. 1 is the utility model circuit theory diagrams.
Embodiment
Such as Fig. 1, a kind of device of automatic identification Power supply belt loading capability comprises controller module, and described controller module comprises controller and analog to digital converter.Described controller comprises single-chip microcomputer, described controller also comprises the peripheral circuit that is connected with single-chip microcomputer, be provided with the interface that is connected with external loading at described controller module, be provided with the connector that is connected with power supply at described controller module, described connector is the connector with USB interface.The D+ pin of described connector and described controller module are electrically connected, and the D-pin of described connector also is electrically connected with described controller module, and the VBUS pin of described connector is connected with external power source, the ID pin ground connection of described connector.This device and portable power source combined has just consisted of the portable power source that can automatically identify the Power supply belt loading capability, and this portable power source comprises input connector, the MCU single-chip microcomputer with the AD conversion, charging IC.During use, to connecting with the mains on the USB connector, charging IC does not directly charge to battery after the power taking.MCU at first can detect the voltage on D+ on the USB connector and the D-by the AD translation function.Judge according to the result who detects, allow charging IC draw rational electric current to the battery charging of back.Just can not allow the power supply that taps into transship or underloading by such judgement.
Must be pointed out that some indefinitenesses that above-described embodiment is just made the utility model illustrate.But person of skill in the art will appreciate that, do not departing under aim of the present utility model and the scope that can make modification to the utility model, replace and change, these modifications, replacement and change still belong to protection domain of the present utility model.
Claims (10)
1. a device of automatically identifying the Power supply belt loading capability comprises controller module, and it is characterized in that: described controller module comprises controller and analog to digital converter.
2. the device of a kind of automatic identification Power supply belt loading capability according to claim 1, it is characterized in that: described controller comprises single-chip microcomputer.
3. the device of a kind of automatic identification Power supply belt loading capability according to claim 2, it is characterized in that: described controller also comprises the peripheral circuit that is connected with single-chip microcomputer.
4. the device of a kind of automatic identification Power supply belt loading capability according to claim 3 is characterized in that: be provided with the interface that is connected with external loading at described controller module.
5. the device of a kind of automatic identification Power supply belt loading capability according to claim 4 is characterized in that: be provided with the connector that is connected with power supply at described controller module.
6. the device of a kind of automatic identification Power supply belt loading capability according to claim 5 is characterized in that: described connector is the connector with USB interface.
7. it is characterized in that according to claim 5 or the device of 6 described a kind of automatic identification Power supply belt loading capabilities: the D+ pin of described connector and described controller module are electrically connected.
8. the device of a kind of automatic identification Power supply belt loading capability according to claim 7 is characterized in that: the D-pin of described connector also is electrically connected with described controller module.
9. the device of a kind of automatic identification Power supply belt loading capability according to claim 8, it is characterized in that: the VBUS pin of described connector is connected with external power source.
10. the device of a kind of automatic identification Power supply belt loading capability according to claim 9 is characterized in that: the ID pin ground connection of described connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220506304 CN202916425U (en) | 2012-09-29 | 2012-09-29 | Device for automatically identifying power supply loading capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220506304 CN202916425U (en) | 2012-09-29 | 2012-09-29 | Device for automatically identifying power supply loading capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202916425U true CN202916425U (en) | 2013-05-01 |
Family
ID=48164728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220506304 Expired - Fee Related CN202916425U (en) | 2012-09-29 | 2012-09-29 | Device for automatically identifying power supply loading capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202916425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954861A (en) * | 2014-04-23 | 2014-07-30 | 四川虹微技术有限公司 | Double-way USB load insertion detecting device |
-
2012
- 2012-09-29 CN CN 201220506304 patent/CN202916425U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954861A (en) * | 2014-04-23 | 2014-07-30 | 四川虹微技术有限公司 | Double-way USB load insertion detecting device |
| CN103954861B (en) * | 2014-04-23 | 2016-04-20 | 四川虹微技术有限公司 | Pick-up unit is inserted in a kind of two-way USB load |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20170929 |