CN203014451U - USB charger - Google Patents
USB charger Download PDFInfo
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- CN203014451U CN203014451U CN 201320010274 CN201320010274U CN203014451U CN 203014451 U CN203014451 U CN 203014451U CN 201320010274 CN201320010274 CN 201320010274 CN 201320010274 U CN201320010274 U CN 201320010274U CN 203014451 U CN203014451 U CN 203014451U
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- 239000002699 waste material Substances 0.000 description 3
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Abstract
The utility model provides a USB charger, comprising the components as following: an input portion which is used to be electrically connected with the USB interface of a computer or a USB concentrator; an output portion which is used to be electrically connected with the equipment to be charged; and a control chip which is used for identifying the charging mode of the equipment to be charged and controlling the USB charger to output a suitable current. The input portion and the output portion are respectively electrically connected with the control chip. According to the USB charger provided in the utility model, the voltage from the USB interface of a computer is input through the input portion, the control chip is used for identifying the charging mode and controlling the current applying to the second pin D- and the third pin D+ of the output portion, the USB interface of the computer is conversed to a USB interface only for charging, a flat computer is charged, and an intelligent mobile phone is rapidly charged. The input portion can also be connected with a common power supply adapter, the control chip is used for identifying the charging mode and controlling the current applying to the second pin D- and the third pin D+ of the output portion, thereby the flat computer can be charged by the common power supply adapter, and the intelligent mobile phone can be rapidly charged by the common power supply adapter.
Description
Technical field
The utility model relates to a kind of charger, relates in particular to a kind of USB charger that is used to the digital equipment charging.
Background technology
The digital equipments such as present panel computer or smart mobile phone can be connected with the USB interface of computer by the cable (being commonly referred to data wire) with USB plug, realize being connected with the data of computer, carry out exchanges data, the operation such as synchronous, to expand use.Yet the 2nd pin D-of computer USB interface and the 3rd pin D+ do not provide the required voltage that charges, and therefore can only can not be used for charging for the transmission of data, can't satisfy the user and expect that the USB interface by computer is the demand of panel computer or smart mobile phone power supply.
In addition, the digital equipment such as panel computer or smart mobile phone usually also is furnished with power supply adaptor and connects civil power and charge.This power supply adaptor one end connects civil power by attaching plug, the other end also provides USB interface, but the different power supply adaptors that digital equipment was suitable for are not quite similar, can not be general between various power supply adaptors, can't charge to same digital equipment with different power supply adaptors, not only cause the waste of power supply adaptor redundancy, also make troubles to the user.
As from the foregoing, providing a kind of USB charger that can charge to digital equipments such as panel computer or smart mobile phones by computer USB interface or different power supply adaptors is the industry problem demanding prompt solution.
The utility model content
Technical problem to be solved in the utility model is, a kind of USB charger that can charge to digital equipments such as panel computer or smart mobile phones by computer USB interface or different power supply adaptors is provided.
In order to solve the problems of the technologies described above, the utility model provides a kind of USB charger, comprising:
For the input part that is electrically connected to the USB interface of computer or usb hub;
For the efferent that is electrically connected to charging equipment; And
Be used for the charge mode of identification charging equipment and control the control chip of exporting the electric current that adapts;
Described input part and efferent are electrically connected to described control chip respectively.
Further, described input part is USB plug or direct current DC interface, and described efferent is USB interface.
Further, described control chip comprises:
Recognition unit is electrically connected to described efferent, is used for sending detectable signal to charging equipment, identifies according to the signal that returns the charge mode that charging equipment is suitable for; And
Control unit is electrically connected to described recognition unit, and for the charge mode that identifies according to described recognition unit, controlling and exporting the electric current that adapts is the charging equipment charging.
Further, described recognition unit further comprises:
The signal detection unit is electrically connected to described efferent, and detectable signal is sent in USB channel D+, the D-pin position that is used for to charging equipment; And
Judging unit is electrically connected to described signal detection unit, is used for the D+ entrained according to inverse signal, the applicable charge mode of D-pin position information of voltage judgement charging equipment.
USB charger provided by the utility model, input voltage from computer USB interface by input part, carry out charge mode by control chip and identify and control the electric current that is applied to efferent the 2nd pin D-and the 3rd pin D+, change computer USB interface into the only USB interface of charging, be embodied as the panel computer charging, and be the smart mobile phone charging fast.Input part also can connect the common power adapter, input direct-current 5V voltage, carry out charge mode by control chip and identify and control the electric current that is applied to efferent the 2nd pin D-and the 3rd pin D+, make the common power adapter all can charge for panel computer, and be that smart mobile phone charges fast, solve the problem that power supply adaptor can not use mutually, reduced the waste of power supply adaptor.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the theory diagram of the utility model embodiment USB charger.
Fig. 2 is the perspective view of the utility model embodiment USB charger.
Fig. 3 is another perspective view of the utility model embodiment USB charger.
Embodiment
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described.
Please refer to shown in Figure 1ly, the utility model embodiment provides a kind of USB charger, comprises the input part 2 that is electrically connected to for the USB interface with computer or usb hub; For the efferent 3 that is electrically connected to charging equipment; And be used for the charge mode of identification charging equipment and control the control chip 1 of exporting the electric current that adapts; Input part 2 and efferent 3 are electrically connected to control chip 1 respectively.
The large pogoniasis of USB charger on market meets USB-IF association's battery charging specification (Battery_Charging_Specification-1.2 is called for short BC1.2).In addition, some digital equipments manufacturers can conclude the charge mode that oneself product is suitable for, and adopts its special charging pattern such as Apple for products such as iPhone, iPad.
In the BC1.2 specification, defined two kinds of charge modes, the one, common charge mode (Standard Downstream Port is called for short SDP), the one, full speed charge mode (Dedicated Charging Port is called for short DCP).SDP is the standard downstream interface, and this interface adopts USB 2 definition of pin position.The charging rate of this pattern is slow, only needs USB the 1st pin to connect power supply 5V and the 4th pin ground connection.DCP is absorbed in charging inlet, and this pattern can only be used for charging, and adopts USB 4 definition of pin position.This pattern charging rate is fast, requires USB the 1st pin to connect 5V voltage, and the 4th pin ground connection requires the D+ circuit is connected on the D-circuit on the 2nd pin D-and the 3rd pin D+ circuit, on D+ and D-circuit, voltage is arranged all.
And in the charge mode of apple products, be also to adopt USB 4 pin definition, require to connect 5V the 4th pin ground connection at USB the 1st pin respectively, be applied as 2.7V and 2.0V voltage on the 2nd pin D-and the 3rd pin D+ circuit or for being 2.0V and 2.7V voltage on D+ and D-circuit.
In the charge mode of Samsung panel computer product, require USB the 1st pin to connect 5V voltage, the 4th pin ground connection requires the D+ circuit is connected on the D-circuit on the 2nd pin D-and the 3rd pin D+ circuit, and the voltage on D+ and D-circuit is 3V to 3.3V.
As previously mentioned, existing be connected in the mode that computer USB interface charges by data wire, because the 2nd pin D-and the 3rd pin D+ of computer USB interface do not provide charging required voltage, therefore can't charge for the panel computer product; (the 1st pin connects 5V voltage even it satisfies the SDP specification, the 4th pin ground connection), because DCP is fully different with the SDP charge mode, the smart mobile phone to be charged that has is only supported the SDP charge mode, what have only supports the DCP charge mode, if do not use with, can bring in various degree loss and damage to the battery of establishing smart mobile phone to be charged with not distinguished.
In the present embodiment, the function that 1 pair of charge mode of control chip has identification and controls, but the charge mode of Intelligent Recognition charging equipment and phase inductive charging.Control chip 1 comprises recognition unit 11 and control unit 12, and recognition unit 11 is electrically connected to USB efferent 3, is used for sending detectable signal to charging equipment, identifies according to the signal that returns the charge mode that charging equipment is suitable for; Control unit 12 is electrically connected to recognition unit 11, and for the charge mode that identifies according to recognition unit 11, controlling and exporting the electric current that adapts is the charging equipment charging.
Specifically, so that the USB charger that the present embodiment was provided is inserted computer USB interface, panel computer is charged as example, please refer to shown in Figure 2, input part 2 is a USB plug 20, suitable with computer USB interface, after inserting computer USB interface, realize being electrically connected to of computer and the present embodiment USB charger, input part 20 obtains the input of 5V voltage from computer USB interface.Efferent 3 is a USB interface 30, adopt 4 definition of pin position, the 5V voltage that input part 20 obtains from computer USB interface is controlled via control chip 1 and is exported efferent 30 to, the 1st pin of efferent 30 still has the 5V Voltage-output, the 4th pin ground connection, the output voltage of the 2nd pin D-and the 3rd pin D+ will be decided according to the voltage that panel computer to be charged was suitable for.
Because efferent in the present embodiment 30 is USB interface, panel computer to be charged can be electrically connected to by the cable with USB plug (this USB plug is plugged into efferent 30) on efferent 3, and the signal active probe is sent in the recognition unit 11 of control chip 1 D+, D-pin position in this USB plug channel.If be apple ipad, applicable voltage difference 2.7V and 2.0V(or opposite on its 2nd pin D-and the 3rd pin D+ circuit); If the Samsung panel computer, on its 2nd pin D-and the 3rd pin D+ circuit, applicable voltage is 3.0V to 3.3V.Therefore, to carry the information of voltage of this USB plug the 2nd pin D-and the 3rd pin D+ in the signal that returns, recognition unit 11 identifies applicable which kind of charge mode of panel computer to be charged accordingly, the electric current (voltage) that is adapted to the 2nd pin D-of efferent 30 and the 3rd pin D+ output by control unit 12 again, the panel computer that is connected electrically on efferent 30 by USB plug can charge.
Be the situation of smart mobile phone for charging equipment, because control chip 1 can be controlled the 2nd pin D-that outputs to efferent 30 and the voltage on the 3rd pin D+, just for applicable DCP charge mode or the self-defined charge mode of apple provide may.For example, smart mobile phone to be charged is electrically connected to (this USB plug is plugged into efferent 30) on efferent 30 by the cable with USB plug, and the signal active probe is sent in the recognition unit 11 of control chip 1 D+, D-pin position in this USB plug channel.If be apple iphone, applicable voltage difference 2.7V and 2.0V(or opposite on its 2nd pin D-and the 3rd pin D+ circuit); If other smart mobile phones, being suitable on its D+ and D-circuit all has voltage.Therefore, to carry the information of voltage of this USB plug the 2nd pin D-and the 3rd pin D+ in the signal that returns, recognition unit 11 identifies applicable which kind of charge mode of smart mobile phone to be charged accordingly, the electric current (voltage) that is adapted to the 2nd pin D-of efferent 30 and the 3rd pin D+ output by control unit 12 again, the smart mobile phone that is connected electrically on efferent 3 by USB plug can charge.
As from the foregoing, the recognition unit 11 of the present embodiment further comprises signal detection unit and judging unit, and the signal detection unit is electrically connected to efferent 3, and detectable signal is sent in USB channel D+, the D-pin position that is used for to charging equipment; Judging unit is electrically connected to the signal detection unit, is used for the D+ entrained according to inverse signal, the applicable charge mode of D-pin position information of voltage judgement charging equipment.
Please refer to again shown in Figure 3, so that the USB charger that the present embodiment was provided is electrically connected to the common power adapter, panel computer is charged as example, input part 2 is a direct current DC interface 21, suitable with the DC plug 41 of power supply adaptor 4, the other end of power supply adaptor is attaching plug, is used for being electrically connected to civil power.After DC plug 41 inserts DC interfaces 21, realize being electrically connected to of power supply adaptor 4 and the present embodiment USB charger, input part 21 obtains the input of 5V direct voltage from power supply adaptor.Efferent 3 is still a USB interface 30, adopt 4 definition of pin position, the 5V voltage that input part 21 obtains from power supply adaptor 4 is controlled via control chip 1 and is exported efferent 30 to, the 1st pin of efferent 30 still has the 5V Voltage-output, the 4th pin ground connection, the output voltage of the 2nd pin D-and the 3rd pin D+ will be decided according to the voltage that panel computer to be charged was suitable for.Concrete identifying and principle comprise that charging equipment is that the situation of smart mobile phone is all consistent with earlier figures 2, repeats no more.
The USB charger of the utility model embodiment, input voltage from computer USB interface by input part, carry out charge mode by control chip and identify and control the electric current that is applied to efferent the 2nd pin D-and the 3rd pin D+, change computer USB interface into the only USB interface of charging, be embodied as the panel computer charging, and be the smart mobile phone charging fast.Certainly, computer USB interface is only a kind of giving an example, a lot of usb hub products are arranged at present, can expand computer USB interface quantity, the USB charger of the present embodiment is connected to these hubs, also it can be changed into the only USB interface of charging, be embodied as the panel computer charging, and be the smart mobile phone charging fast.
In addition, input part also can connect the common power adapter, input direct-current 5V voltage, carry out charge mode by control chip and identify and control the electric current that is applied to efferent the 2nd pin D-and the 3rd pin D+, make the common power adapter all can charge for panel computer, and fast for the smart mobile phone charging, solved the problem that power supply adaptor can not use mutually, reduce the waste of power supply adaptor.
Above disclosed is only the utility model preferred embodiment, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (4)
1. a USB charger, is characterized in that, comprising:
For the input part that is electrically connected to the USB interface of computer or usb hub;
For the efferent that is electrically connected to charging equipment; And
Be used for the charge mode of identification charging equipment and control the control chip of exporting the electric current that adapts;
Described input part and efferent are electrically connected to described control chip respectively.
2. USB charger according to claim 1, is characterized in that, described input part is USB plug or direct current DC interface, and described efferent is USB interface.
3. USB charger according to claim 1 and 2, is characterized in that, described control chip comprises:
Recognition unit is electrically connected to described efferent, is used for sending detectable signal to charging equipment, identifies according to the signal that returns the charge mode that charging equipment is suitable for; And
Control unit is electrically connected to described recognition unit, and for the charge mode that identifies according to described recognition unit, controlling and exporting the electric current that adapts is the charging equipment charging.
4. USB charger according to claim 3, is characterized in that, described recognition unit further comprises:
The signal detection unit is electrically connected to described efferent, and detectable signal is sent in USB channel D+, the D-pin position that is used for to charging equipment; And
Judging unit is electrically connected to described signal detection unit, is used for the D+ entrained according to inverse signal, the applicable charge mode of D-pin position information of voltage judgement charging equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010274 CN203014451U (en) | 2013-01-09 | 2013-01-09 | USB charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010274 CN203014451U (en) | 2013-01-09 | 2013-01-09 | USB charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203014451U true CN203014451U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320010274 Expired - Fee Related CN203014451U (en) | 2013-01-09 | 2013-01-09 | USB charger |
Country Status (1)
| Country | Link |
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| CN (1) | CN203014451U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064926A (en) * | 2013-11-14 | 2014-09-24 | 苏州天趣信息科技有限公司 | Protection device for universal serial bus |
| CN104377768A (en) * | 2014-11-17 | 2015-02-25 | 朱捷 | Charge optimizing device for portable electronic instrument |
| CN104467090A (en) * | 2014-11-27 | 2015-03-25 | 深圳市晖耀电线电缆有限公司 | USB rapid charging line and method thereof |
| CN105518968A (en) * | 2013-09-09 | 2016-04-20 | 苹果公司 | Universal power adapter |
| CN105634038A (en) * | 2014-10-29 | 2016-06-01 | 联想(北京)有限公司 | Method for outputting electric signal, and method for determining power, and device |
| CN106300564A (en) * | 2016-10-31 | 2017-01-04 | 宇龙计算机通信科技(深圳)有限公司 | A kind of charging method and mobile terminal |
| CN113836065A (en) * | 2021-08-31 | 2021-12-24 | 浙江地芯引力科技有限公司 | One-to-many data line circuit and data line |
-
2013
- 2013-01-09 CN CN 201320010274 patent/CN203014451U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105518968A (en) * | 2013-09-09 | 2016-04-20 | 苹果公司 | Universal power adapter |
| CN104064926A (en) * | 2013-11-14 | 2014-09-24 | 苏州天趣信息科技有限公司 | Protection device for universal serial bus |
| CN105634038A (en) * | 2014-10-29 | 2016-06-01 | 联想(北京)有限公司 | Method for outputting electric signal, and method for determining power, and device |
| CN105634038B (en) * | 2014-10-29 | 2020-11-20 | 联想(北京)有限公司 | Electric signal output and power determination method and device |
| CN104377768A (en) * | 2014-11-17 | 2015-02-25 | 朱捷 | Charge optimizing device for portable electronic instrument |
| CN104467090A (en) * | 2014-11-27 | 2015-03-25 | 深圳市晖耀电线电缆有限公司 | USB rapid charging line and method thereof |
| CN104467090B (en) * | 2014-11-27 | 2017-04-19 | 深圳市晖耀电线电缆有限公司 | USB rapid charging line and method thereof |
| CN106300564A (en) * | 2016-10-31 | 2017-01-04 | 宇龙计算机通信科技(深圳)有限公司 | A kind of charging method and mobile terminal |
| CN113836065A (en) * | 2021-08-31 | 2021-12-24 | 浙江地芯引力科技有限公司 | One-to-many data line circuit and data line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170609 Address after: 518000 Guangdong province Shenzhen city Longhua District Office of Longhua Hualian community He Bei Gong Ye Qu Zhen Ying Tai Industrial Park two two floor Patentee after: BROADWAY ELECTRONIC (SHENZHEN) CO., LTD. Address before: 2 building, 7 floor, second industrial zone, Luo Wai Street, Longhua New District, Shenzhen, Guangdong, 518000 Patentee before: Lai Weichang |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20190109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |