CN203871616U - USB data line - Google Patents
USB data line Download PDFInfo
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- CN203871616U CN203871616U CN201420155211.8U CN201420155211U CN203871616U CN 203871616 U CN203871616 U CN 203871616U CN 201420155211 U CN201420155211 U CN 201420155211U CN 203871616 U CN203871616 U CN 203871616U
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Abstract
The utility model discloses a USB data line. The USB data line comprises a first USB interface, a second USB interface, a current detection device, a controller and an indication device. The current detection device is serially connected between the first USB interface and the second USB interface; the current detection device is electrically connected with the first USB interface and the second USB interface; and the controller is electrically connected with the current detection device and the indication device.
Description
Technical field
The utility model relates to mobile terminal technology, relates in particular to a kind of USB (USB, Universal Serial Bus) data wire.
Background technology
At present, when bringing Function Extension along with smart mobile phone, the power consumption of mobile phone is also considerably beyond general function mobile phone, and mobile phone charging is the thing that must do every day already.Current smart mobile phone does not substantially all have charging indicator light, just must could understand charged state by operating handset so in charging process.Some high-end smartphones, although there is indicator light, the function of indicator light is not only used for showing charging; For example, if having missed call or do not see note, will preferentially show missed call or not see the event informations such as information, can not at any time allow user understand charged state equally.
Utility model content
The problem existing for prior art, the utility model embodiment provides a kind of usb data line.
The utility model embodiment provides a kind of usb data line, and described usb data line comprises: the first USB interface, secondary USB interface, current detecting device, controller and indicating device; Wherein,
Described current detecting device is serially connected between described the first USB interface and described secondary USB interface; Described current detecting device is electrically connected with described the first USB interface and described secondary USB interface; Described controller is electrically connected with described current detecting device and described indicating device.
In such scheme, the USB interface that described the first USB interface is standard or for miniature (Micro) USB interface or for mini (Mini) USB interface;
Correspondingly, the USB interface that described secondary USB interface is standard or for Micro USB interface or for Mini USB interface.
In such scheme, described controller is micro-control unit (MCU, Micro Control Unit).
In such scheme, described current detecting device is resistance;
Correspondingly, described controller connects the two ends of described resistance.
In such scheme, described resistance is equivalent resistance.
In such scheme, described indicating device is light-emitting diode (LED, Light Emitting Diode) lamp.
In such scheme, the number of described LED lamp is more than one.
In such scheme, described current detecting device is serially connected between the first pin of described the first USB interface and the 5th pin of described secondary USB interface.
In such scheme, the first pin of described the first USB interface also connects the tenth pin and the described indicating device of described controller.
In such scheme, the second pin of described the first USB interface connects the tenth three-prong of described controller and the 6th pin of described secondary USB interface, the three-prong of described the first USB interface connects the 11 pin of described controller and the 7th pin of secondary USB interface, and the 4th pin of described USB interface connects the 12 pin of described controller and the 8th pin of secondary USB interface.
In such scheme, when described secondary USB interface is Micro USB interface or Mini USB interface, the 14 pin of described controller connects the 9th pin of described secondary USB interface.
The usb data line that the utility model embodiment provides, described usb data line comprises: the first USB interface, secondary USB interface, current detecting device, controller and indicating device; Wherein, described current detecting device is serially connected between described the first USB interface and described secondary USB interface; Described current detecting device is electrically connected with described the first USB interface and described secondary USB interface; Described controller is electrically connected with described current detecting device and described indicating device, so, no matter whether mobile terminal possesses the indicator light that shows charged state function, user can understand charged state in the situation that not needing operating mobile terminal, that is: the state of the indicating device by usb data line just can be recognized the charged state of mobile terminal fast.
Brief description of the drawings
Fig. 1 is the structural representation of prior art Plays USB interface;
Fig. 2 is the structural representation of Micro USB interface in prior art;
The structural representation of the usb data line that Fig. 3 provides for the utility model;
The structural representation of the usb data line that Fig. 4 provides for the utility model embodiment mono-;
The elementary diagram of the usb data line that Fig. 5 provides for the utility model embodiment mono-;
Normalized current curve chart when charging that Fig. 6 provides for the utility model embodiment mono-;
Normal voltage curve chart when charging that Fig. 7 provides for the utility model embodiment mono-;
The structural representation of the usb data line that Fig. 8 provides for the utility model embodiment bis-;
The elementary diagram of the usb data line that Fig. 9 provides for the utility model embodiment bis-.
Description of reference numerals:
11, the one GND pins; 12, the one D+ pins; 13, the one D-pins; 14, the one VBus pins; 21, the two VBus pins; 22, the two D-pins; 23, ID pin; 24, the two D+ pins; 25, the two GND pins; 31, the first USB interface; 311, the first pins; 312, the second pins; 313, the three-prongs; 314, the four pins; 32, secondary USB interface; 321, the five pins; 322, the six pins; 323, the seven pins; 324, the eight pins; 325, the nine pins; 33, current detecting device; 34, controller; 341, the ten pins; 342, the ten one pins; 343, the ten two pins; 344, the ten three-prongs; 345, the ten four pins; 346, the ten five pins; 347, the ten six pins; 348, the ten seven pins; 349, the ten eight pins; 35, indicating device; 351, the one LED lamps; 352, the two LED lamps; 353, the three LED lamps; 354, the four LED lamps.
Embodiment
It should be noted that, used herein first, second ... only represent the element of diverse location, the parameter to element or function do not limit.
In order to understand content of the present utility model, the utility model is first introduced structure and the function of generic USB data wire in prior art.At present, various mobile terminals generally all can utilize usb data line and miscellaneous equipment to carry out data communication, and the interface USB interface that normally one end is standard of the usb data line that mobile terminal is used, the other end is Mini USB interface or Micro USB interface.As shown in Figure 1, the USB interface of standard is provided with a GND pin one 1, a D+ pin one 2, a D-pin one 3, a VBus pin one 4; Wherein, a described GND pin one 1 connects earth point; A described D+ pin one 2 connects high level signal line; The one D-pin one 3 connects low level signal line; A described VBus pin one 4, connects power signal line; As shown in Figure 2, Micro USB interface is provided with the 2nd VBus pin two 1, the 2nd D-pin two 2, ID pin two 3, the 2nd D+ pin two 4 and the 2nd GND pin two 5; Wherein, the 2nd VBus pin two 1 connects power signal line; The 2nd D-pin two 2 connects low level signal line; ID pin two 3 is dead end; The 2nd D+ pin two 4 connects high level signal line; Described the 2nd GND pin two 5 connects earth point.
Each pin of standard USB interface is the corresponding connection of each pin with Mini USB interface by corresponding holding wire.The pin of Mini USB interface and line order purposes are identical with pin and the line order purposes of Micro USB interface, and Mini USB interface is that profile is different from Micro USB interface difference, that is to say, the two is apparent size difference.When practical application, the USB interface of standard is connected with power supply adaptor or computer conventionally, and Mini USB interface or Micro USB interface are connected with mobile terminal; Thereby correspondingly realize charge function and data communication function.From description above, can know, in the prior art, usb data line can only be realized data communication and charge function.
Based on this, in various embodiment of the present utility model: in the time being the battery charging of mobile terminal, current detecting device detects the electric current that inputs to battery of mobile terminal by the first USB interface and secondary USB interface, the electric current that controller detects according to current detecting device, whether the battery that judges mobile terminal is full of electricity, carrys out the state of Control director part according to judged result.
The usb data line that the utility model embodiment provides, not only can reflect charged state intuitively, also has data communication and quick-charge function.
The usb data line that the utility model embodiment provides, as shown in Figure 3, this data wire comprises: the first USB interface 31, secondary USB interface 32, current detecting device 33, controller 34 and indicating device 35; Wherein,
Current detecting device 33 is serially connected between the first USB interface 31 and secondary USB interface 32; Current detecting device 33 is electrically connected with the first USB interface 31 and secondary USB interface 32; Controller 34 is electrically connected with current detecting device 33, and controller 34 is electrically connected with indicating device 35.
Here, the first USB interface 31 and secondary USB interface 32 can be all USB interface, Micro USB interface or the Mini USB interface etc. of standard.
Current detecting device 33 can be a resistance, and the resistance of resistance and power can determine as required, such as: resistance is the resistance that 0.05 ohm, power are 0.2W.Correspondingly, the two ends of controller 34 contact resistances.When practical application, current detecting device 33 can be realized by equivalent resistance, particularly, can be realized by multiple above precision resistances parallel connections and/or series connection, the equivalent resistance that the resistance of equivalent resistance forms can not exceed 0.05 ohm, the minimum voltage requirement while charging to meet mobile terminal; Here when practical application, require the charging voltage of mobile terminal at least will be more than 4.5V.
Controller 34 can be MCU.
Indicating device 35 can be LED lamp; Here, the number of described LED lamp can be more than one.
When practical application, described current detecting device 33 is serially connected between the first pin of described the first USB interface 31 and the 5th pin of described secondary USB interface 32.
The first pin of described the first USB interface 31 also connects described controller 34 and described indicating device 35.
The second pin of described the first USB interface 31 connects the tenth three-prong of described controller 34 and the 6th pin of described secondary USB interface 32, the three-prong of described the first USB interface 31 connects the 11 pin of described controller 34 and the 7th pin of secondary USB interface 32, and the 4th pin of described USB interface 31 connects the 12 pin of described controller 34 and the 8th pin of secondary USB interface 32.
When practical application, in the time that described secondary USB interface 32 is Micro USB interface or Mini USB interface, the 14 pin of described controller 34 can also connect the 9th pin of described secondary USB interface 32.
The usb data line that the utility model embodiment provides, in the time being the battery charging of mobile terminal, current detecting device 33 detects the electric current that inputs to battery of mobile terminal by the first USB interface 31 and secondary USB interface 32, the electric current that controller 34 detects according to current detecting device 33, whether the battery that judges mobile terminal is full of electricity, carry out the state of Control director part 35 according to judged result, thereby realize the demonstration directly perceived to charged state.
When practical application, described the first pin is connected with the Vbus pin of described the first USB interface 31, described the second pin is connected with the GND pin of described the first USB interface 31, described three-prong is connected with the D+ pin of described the first USB interface 31, and the 4th pin is connected with the D-pin of described the first USB interface 31; Correspondingly, described the 5th pin is connected with the Vbus pin of described secondary USB interface 32, described the 6th pin is connected with the GND pin of described secondary USB interface 32, described the 7th pin is connected with the D+ pin of described secondary USB interface 32, described the 8th pin is connected with the D-pin of described secondary USB interface 32, and described the 9th pin is connected with the ID pin of described secondary USB interface 32.
Below by drawings and the specific embodiments, the technical solution of the utility model is described in further detail.
Embodiment mono-
In the present embodiment, as shown in Figure 4, the USB interface that the first USB interface 31 is standard; Secondary USB interface 32 is Micro USB interface or Mini USB interface; Current detecting device 33 is resistance R 1, and resistance R 1 is equivalent resistance; Controller 34 is MCU, and indicating device 35 comprises: a LED lamp 351, the 2nd LED lamp 352 and the 3rd LED lamp 353.Wherein, described equivalent resistance refers to: the in parallel and/or resistance forming of connecting by multiple precision resistances, the equivalent resistance that equivalent resistance forms can not exceed 0.05 ohm, and the required precision of the equivalent resistance of equivalent resistance is generally 1%, the minimum voltage requirement while charging to meet mobile terminal; Here when practical application, require the charging voltage of mobile terminal at least will be more than 4.5V.Give an example, can adopt two resistances is that the precision resistance of 0.1 ohm carries out parallel connection, thereby obtains the equivalent resistance of 0.05 ohm.Wherein, described precision resistance refers to: resistance is at the resistance of 1 ohm of following resistance, compared with mark resistance, and the resistance of reach ± 1% precision.
In the present embodiment, as shown in Figure 5, the second pin 312 of the first USB interface 31 connects the tenth three-prong 344 of controller 34 and the 6th pin 322 of secondary USB interface 32, the three-prong 313 of the first USB interface 31 connects the 11 pin 342 of controller 34 and the 7th pin 323 of secondary USB interface 32, the 4th pin 314 of the first USB interface 31 connects the 12 pin 343 of controller 34 and the 8th pin 324 of secondary USB interface 32, the first pin 311 of the first USB interface 31 connects the tenth pin 341 of controller 34 and one end of resistance R 1, the other end of resistance R 1 connects the 5th pin 321 of secondary USB interface 32 and the 15 pin 346 of controller 34, the 9th pin 325 of described secondary USB interface 32 is also connected with the 14 pin 345 of controller 34, so that the mode that the handshake that described secondary USB interface 32 and described controller 34 transmit by the 9th pin 325 of secondary USB interface 32 and the 14 pin 345 of controller 34 or 1-ware communication protocol or level interrupt communicates, here, the object that the first pin 311 of the first USB interface 31 connects the tenth pin 341 of controller 34 is: make the first USB interface 31 by self output Voltage-output to controller 34, thereby power for controller 34.
The 16 pin 347 of controller 34 is electrically connected with the 3rd LED lamp 353, the 17 pin 348 of controller 34 is electrically connected with the 2nd LED lamp 352, the 18 pin 349 of controller 34 is electrically connected with a LED lamp 351, so that controller 34 can be controlled respectively the show state of the 3rd LED lamp 353, the 2nd LED lamp 352, a LED lamp 351.
The one LED lamp 351, the 2nd LED lamp 352 and the 3rd LED lamp 353 are also connected with the first pin 311 of the first USB interface 31, so that Voltage-output to a LED lamp 351, the 2nd LED lamp 352 and the 3rd LED lamp 353 that the first USB interface 31 is exported self, thereby be that a LED lamp 351, the 2nd LED lamp 352 and the 3rd LED lamp 353 are powered.
The usb data line that the present embodiment provides, in the time that the first USB interface 31 of usb data line is inserted power supply adaptor, handshake and the power supply adaptor of the high level signal line that controller 34 connects by the three-prong 313 of the first USB interface 31, the low level signal line that the 4th pin 314 connects transmission communicate; In the time that controller 34 detects that the first pin 311 has 5V Voltage-output, 34 of controllers can be turned on a LED lamp 351, be used to indicate current power supply adaptor for normal output, can charge to mobile terminal, in the time having mobile terminal to insert secondary USB interface 32, controller 34, by the flow through electric current of resistance R 1 of detection, carries out the detection of charging current, determines charged state; Wherein, a described LED lamp 351 can be blue led; Described mobile terminal can be the mobile terminals such as mobile phone, Ipad.
Particularly, when charging, when controller 34 is by the voltage difference at Real-time Obtaining resistance R 1 two ends, detect the size of charging current, and in definite charging current during in constant current state, controller 34 cuts out a LED lamp 351, and turn on the 2nd LED lamp 352, represent that now mobile terminal charges; Here, described the 2nd LED lamp 352 can be red LED.
In charging process, controller 34 can detect the size of charging current in real time.Here the current curve state of standard when, Fig. 6 shows charging; When Fig. 7 shows charging, the voltage curve state of standard, can learn that by Fig. 6, Fig. 7 the charging process of mobile terminal is first constant current, then the process of constant voltage.As shown in Figure 6 and Figure 7, due to the increase along with the charging interval, the battery capacity of mobile terminal is also in continuous increase, and therefore charging current starts to reduce gradually, and now, charged state becomes pressure constant state from constant current state; Therefore, in the time detecting that charging current is less than default current threshold, controller 34 determines that the battery capacity of mobile terminal is full, and controller 34 cuts out the 2nd LED lamp 352, and turn on the 3rd LED lamp 353, represent that the battery capacity of mobile terminal is now in saturation condition.
In addition, at battery of mobile terminal capacity in saturation condition, and still connect in the situation of charging adapter, in put procedure, the voltage of battery of mobile terminal has a process declining gradually, when the voltage drop of battery of mobile terminal to a certain extent, while dropping to below 4.1V such as cell voltage, the mobile terminal request of can again charging is charged; Recharging under state, controller 34 cuts out the 3rd LED lamp 353, and turns on LED lamp 352, represents that now mobile terminal is just in charged state; The battery capacity of determining mobile terminals when controller 34 is completely time, and controller 34 cuts out the 2nd LED lamp 352, and turns on the 3rd LED lamp 353, represents that the battery capacity of mobile terminal is now in saturation condition.
Wherein, described default current threshold can arrange as required; Specifically, when practical application, generally have two kinds of modes and represent and charged: the first is after battery of mobile terminal is full of, and charging current drops to 0mA, now, will not need to maintain cell voltage; The second is after the battery of mobile terminal is full of, and also can keep smaller electric current to charge, and for maintaining cell voltage, does not recharge process; This smaller electric current generally remains on 100mA, and based on this, it is 100mA that current threshold generally can be set.Described the 3rd LED lamp 353 can be green LED.
In addition, along with the increase of mobile terminal screen size, the capacity of battery of mobile terminal is also constantly increasing again, and when charging, the charging current in data wire has also almost arrived limit value.Require and method of testing YDT1591-2009 according to international standard power source of mobile communication terminal adapter and charging/data interface techniques, MicroUSB charging current maximum can not exceed 1.5A, but in the prior art, the ability of data wire substantially only reaches the index request of 1A, this also just means in same charging output situation, the current capacity of data wire is less, and the charging interval is longer.
And the usb data line that the present embodiment provides is in reflection charged state, can also, according to Ohm's law, in the situation that not improving input current, improve input voltage, increase power output, reduce the charging interval; Described Ohm's law is: P=U*I; Wherein, P is power output, and U is input voltage, and I is input current.
The usb data line that the present embodiment provides, in the time that mobile terminal is supported quick charge, mobile terminal communicates with controller 34 by the 7th pin 323, the 8th pin 324 of secondary USB interface 32, or communicates with controller 34 by the 9th pin 325 of secondary USB interface 32; Particularly, in the time that mobile terminal enters mobile terminal Serial Communication by the 7th pin 323, the 8th pin 324 on secondary USB interface 32 with controller 34, mobile terminal can be initiated high power charging request to controller 34 by handshake; In the time that mobile terminal communicates with controller 34 by the 9th pin 325 on secondary USB interface 32, mobile terminal can be initiated high power charging request to controller 34 by the mode of handshake or 1-ware communication protocol or level interruption, in the time that request nothing responds or is rejected, mobile terminal can repeat to send within the default cycle, until ask successfully; Here, can be also that controller 34 is initiated high power charging request by the mode of handshake or 1-ware communication protocol or level interruption to mobile terminal, in the present embodiment, initiate to ask to describe as example taking mobile terminal.
When mobile terminal is initiated request, and after controller 34 receives request, the high level signal line that controller 34 connects by the three-prong 313 of the first USB interface 31, the low level signal alignment power supply adaptor that the 4th pin 314 connects send the request that improves power stage, after power supply adaptor receives request, improve self power output.
In charging process, can Real-Time Monitorings the flow through electric current of resistance R 1 of controller 34, in the time that controller 34 determines that according to the electric current of the resistance R 1 of flowing through current charged state has changed pressure constant state into by constant current state, charged state is notified to mobile terminal, and mobile terminal initiates to recover normal powers charging request by the mode of handshake or 1-ware communication protocol or level interruption to controller 34; Controller 34 is received after request, the high level signal line connecting by the three-prong 313 of the first USB interface 31, the low level signal alignment power supply adaptor that the 4th pin 314 connects send the request that recovers normal power output, after power supply adaptor receives request, recover normal power output.Like this, just complete quick charge process.
Embodiment bis-
In the present embodiment, as shown in Figure 8, the USB interface that the first USB interface 31 is standard; Secondary USB interface 32 is Micro USB interface or Mini USB interface; Current detecting device 33 is resistance R 1, and resistance R 1 is equivalent resistance; Controller 34 is MCU, and indicating device 35 only includes: the 4th LED lamp 354.Wherein, described equivalent resistance refers to: the in parallel and/or resistance forming of connecting by multiple precision resistances, the equivalent resistance that equivalent resistance forms can not exceed 0.05 ohm, and the required precision of the equivalent resistance of equivalent resistance is generally 1%, the minimum voltage requirement while charging to meet mobile terminal; Here when practical application, require the charging voltage of mobile terminal at least will be more than 4.5V.Give an example, can adopt two resistances is that the precision resistance of 0.1 ohm carries out parallel connection, thereby obtains the equivalent resistance of 0.05 ohm.Wherein, described precision resistance refers to: resistance is at the resistance of 1 ohm of following resistance, compared with mark resistance, and the resistance of reach ± 1% precision.
In the present embodiment, as shown in Figure 9, the second pin 312 of the first USB interface 31 connects the tenth three-prong 344 of controller 34 and the 6th pin 322 of secondary USB interface 32, the three-prong 313 of the first USB interface 31 connects the 11 pin 342 of controller 34 and the 7th pin 323 of secondary USB interface 32, the 4th pin 314 of the first USB interface 31 connects the 12 pin 343 of controller 34 and the 8th pin 324 of secondary USB interface 32, the first pin 311 of the first USB interface 31 connects the tenth pin 341 of controller 34 and one end of resistance R 1, the other end of resistance R 1 connects the 5th pin 321 of secondary USB interface 32 and the 15 pin 346 of controller 34, the 14 pin 345 of controller 34 connects the 9th pin 325 of secondary USB interface 32, here, the object that the first pin 311 of the first USB interface 31 connects the tenth pin 341 of controller 34 is: make the first USB interface 31 by self output Voltage-output to controller 34, thereby power for controller 34.
The 18 pin 348 of controller 34 is electrically connected with the 4th LED lamp 354, so that controller 34 can be controlled the show state of the 4th LED lamp 354.
The 4th LED lamp 354 is also connected with the first pin 311 of the first USB interface 31, so that Voltage-output to the four LED lamps 354 that the first USB interface 31 is exported self, thereby be that the 4th LED lamp 354 is powered.
The usb data line that the present embodiment provides, in the time that the first USB interface 31 of usb data line is inserted power supply adaptor, handshake and the power supply adaptor of the high level signal line that controller 34 connects by the three-prong 313 of the first USB interface 31, the low level signal line that the 4th pin 314 connects transmission communicate; In the time that controller 34 detects that the first pin 311 has 5V Voltage-output, 34 of controllers can be turned on the 4th LED lamp 354, and described the 4th LED lamp 354 is adjusted into blueness, be used to indicate current power supply adaptor for normal output, can charge to mobile terminal, when there being mobile terminal to insert when secondary USB interface 32, controller 34 is by the flow through electric current of resistance R 1 of detection, carry out the detection of charging current, determine charged state; Wherein, described mobile terminal can be the mobile terminals such as mobile phone, Ipad.
Particularly, when charging, when controller 34 is by the voltage difference at Real-time Obtaining resistance R 1 two ends, detect the size of charging current, and in definite charging current during in constant current state, the color of the 4th LED lamp 354 is adjusted into redness by controller 34, represents that now mobile terminal charges.
In charging process, controller 34 can detect the size of charging current in real time.Here the current curve state of standard when, Fig. 6 shows charging; When Fig. 7 shows charging, the voltage curve state of standard, can learn that by Fig. 6, Fig. 7 the charging process of mobile terminal is first constant current, then the process of constant voltage.As shown in Figure 6 and Figure 7, due to the increase along with the charging interval, the battery capacity of mobile terminal is also in continuous increase, and therefore charging current starts to reduce gradually, and now, charged state becomes pressure constant state from constant current state; Therefore, in the time detecting that charging current is less than default current threshold, controller 34 determines that the battery capacity of mobile terminals is full, and the color of the 4th LED lamp 354 is adjusted into green by described controller 34, represents that the battery capacity of mobile terminal is now in saturation condition.
In addition, at battery of mobile terminal capacity in saturation condition, and still connect in the situation of charging adapter, in put procedure, the voltage of battery of mobile terminal has a process declining gradually, when the voltage drop of battery of mobile terminal to a certain extent, while dropping to below 4.1V such as cell voltage, mobile terminal can again be initiated charging request and be charged; Recharging under state, the color of the 4th LED lamp 354 is adjusted into redness by controller 34, represents that now mobile terminal is just in charged state; The battery capacity of determining mobile terminals when controller 34 is completely time, and the color of the 4th LED lamp 354 is adjusted into green by controller 34, represents that the battery capacity of mobile terminal is now in saturation condition.
Wherein, described default current threshold can arrange as required; Specifically, when practical application, generally have two kinds of modes and represent and charged: the first is after battery of mobile terminal is full of, and charging current drops to 0mA, now, will not need to maintain cell voltage; The second is after the battery of mobile terminal is full of, and also can keep smaller electric current to charge, and for maintaining cell voltage, does not recharge process; This smaller electric current generally remains on 100mA, and based on this, it is 100mA that current threshold generally can be set.
In addition, along with the increase of mobile terminal screen size, the capacity of battery of mobile terminal is also constantly increasing again, and when charging, the charging current in data wire has also almost arrived limit value.Require and method of testing YDT1591-2009 according to international standard power source of mobile communication terminal adapter and charging/data interface techniques, MicroUSB charging current maximum can not exceed 1.5A, but in the prior art, the ability of data wire substantially only reaches the index request of 1A, this also just means in same charging output situation, the current capacity of data wire is less, and the charging interval is longer.
And the usb data line that the present embodiment provides is in reflection charged state, can also, according to Ohm's law, in the situation that not improving input current, improve input voltage, increase power output, reduce the charging interval; Described Ohm's law is: P=U*I; Wherein, P is power output, and U is input voltage, and I is input current.
The usb data line that the present embodiment provides, in the time that mobile terminal is supported quick charge, mobile terminal communicates with controller 34 by the 7th pin 323, the 8th pin 324 of secondary USB interface 32, or communicates with controller 34 by the 9th pin 325 of secondary USB interface 32; Particularly, in the time that mobile terminal enters mobile terminal Serial Communication by the 7th pin 323, the 8th pin 324 on secondary USB interface 32 with controller 34, mobile terminal can be initiated high power charging request to controller 34 by handshake; In the time that mobile terminal communicates with controller 34 by the 9th pin 325 on secondary USB interface 32, mobile terminal can be initiated high power charging request to controller 34 by the mode of handshake or 1-ware communication protocol or level interruption, in the time that request nothing responds or is rejected, mobile terminal can repeat to send within the default cycle, until ask successfully; Here, can be also that controller 34 is initiated high power charging request by the mode of handshake or 1-ware communication protocol or level interruption to mobile terminal, in the present embodiment, initiate to ask to describe as example taking mobile terminal.
When mobile terminal is initiated request, and after controller 34 receives request, the high level signal line that controller 34 connects by the three-prong 313 of the first USB interface 31, the low level signal alignment power supply adaptor that the 4th pin 314 connects send the request that improves power stage, after power supply adaptor receives request, improve self power output.
In charging process, can Real-Time Monitorings the flow through electric current of resistance R 1 of controller 34, in the time that controller 34 determines that according to the electric current of the resistance R 1 of flowing through current charged state has changed pressure constant state into by constant current state, charged state is notified to mobile terminal, and mobile terminal initiates to recover normal powers charging request by the mode of handshake or 1-ware communication protocol or level interruption to controller 34; Controller 34 is received after request, the high level signal line connecting by the three-prong 313 of the first USB interface 31, the low level signal alignment power supply adaptor that the 4th pin 314 connects send the request that recovers normal power output, after power supply adaptor receives request, recover normal power output.Like this, just complete quick charge process.
The utility model embodiment carries out current detecting on usb data line, thereby determines battery charging state, has realized more refinement of electric weight, has more directly shown; Not only can intuitively reflect the charged state of terminal, can also meet the needs of quick charge.
In addition, the utility model embodiment can judge whether to improve power output according to power supply adaptor type, the damage while effectively having avoided power supply adaptor output overvoltage, end side or data wire having been caused.
It should be noted that: when practical application, can also only adopt a LED to carry out indicating mobile terminal battery and whether be full of electricity, in the time only adopting a LED lamp, concrete annexation can be with reference to the annexation shown in Fig. 9.In the time only adopting a LED lamp, can be after battery of mobile terminal be full of, turn on LED lamp, so that knowing the battery of mobile terminal, user is full of.Adopt a LED come indicating mobile terminal battery whether be full of electricity concrete processing procedure and embodiment mono-and embodiment bis-similar, repeat no more here.
The above; it is only preferred embodiment of the present utility model; be not intended to limit protection range of the present utility model, all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (11)
1. a usb data line, is characterized in that, described usb data line comprises: the first USB interface, secondary USB interface, current detecting device, controller and indicating device; Wherein,
Described current detecting device is serially connected between described the first USB interface and described secondary USB interface; Described current detecting device is electrically connected with described the first USB interface and described secondary USB interface; Described controller is electrically connected with described current detecting device and described indicating device.
2. usb data line according to claim 1, is characterized in that, the USB interface that described the first USB interface is standard or for miniature Micro USB interface or for mini Mini USB interface;
Correspondingly, the USB interface that described secondary USB interface is standard or for Micro USB interface or for Mini USB interface.
3. usb data line according to claim 1, is characterized in that, described controller is micro-control unit MCU.
4. usb data line according to claim 1, is characterized in that, described current detecting device is resistance;
Correspondingly, described controller connects the two ends of described resistance.
5. usb data line according to claim 4, is characterized in that, described resistance is equivalent resistance.
6. usb data line according to claim 1, is characterized in that, described indicating device is LED lamp.
7. usb data line according to claim 6, is characterized in that, the number of described LED lamp is more than one.
8. according to the usb data line described in claim 1 to 7 any one, it is characterized in that, described current detecting device is serially connected between the first pin of described the first USB interface and the 5th pin of described secondary USB interface.
9. usb data line according to claim 8, is characterized in that, the first pin of described the first USB interface also connects the tenth pin and the described indicating device of described controller.
10. usb data line according to claim 9, it is characterized in that, the second pin of described the first USB interface connects the tenth three-prong of described controller and the 6th pin of described secondary USB interface, the three-prong of described the first USB interface connects the 11 pin of described controller and the 7th pin of secondary USB interface, and the 4th pin of described USB interface connects the 12 pin of described controller and the 8th pin of secondary USB interface.
11. usb data lines according to claim 10, is characterized in that, when described secondary USB interface is Micro USB interface or Mini USB interface, the 14 pin of described controller connects the 9th pin of described secondary USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155211.8U CN203871616U (en) | 2014-04-01 | 2014-04-01 | USB data line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155211.8U CN203871616U (en) | 2014-04-01 | 2014-04-01 | USB data line |
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| Publication Number | Publication Date |
|---|---|
| CN203871616U true CN203871616U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420155211.8U Expired - Lifetime CN203871616U (en) | 2014-04-01 | 2014-04-01 | USB data line |
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| CN (1) | CN203871616U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319564A (en) * | 2014-11-10 | 2015-01-28 | 安福县海能实业股份有限公司 | Lightning charging data line capable of displaying charging state |
| CN104821472A (en) * | 2015-03-23 | 2015-08-05 | 丰岛电子科技(苏州)有限公司 | Charging wire and method for displaying charging state |
| CN105375207A (en) * | 2015-11-05 | 2016-03-02 | 罗勇进 | USB cable |
| CN105470758A (en) * | 2015-11-20 | 2016-04-06 | 苏州佳世达电通有限公司 | USB connecting line |
| CN105974176A (en) * | 2016-05-03 | 2016-09-28 | 深圳市格劳瑞电子有限公司 | USB Type-C volt ammeter and detection method thereof |
| CN106451637A (en) * | 2016-11-03 | 2017-02-22 | 惠州Tcl移动通信有限公司 | Charge indicating lamp control method and system and mobile terminal |
| CN108063348A (en) * | 2016-11-07 | 2018-05-22 | 深圳市展卓电子科技有限公司 | A kind of digital equipment intelligent data charging wire |
| EP3314705B1 (en) * | 2015-12-18 | 2020-04-01 | Hewlett-Packard Development Company, L.P. | Led operational profiles for usb-c cable plugs |
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2014
- 2014-04-01 CN CN201420155211.8U patent/CN203871616U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319564A (en) * | 2014-11-10 | 2015-01-28 | 安福县海能实业股份有限公司 | Lightning charging data line capable of displaying charging state |
| CN104821472A (en) * | 2015-03-23 | 2015-08-05 | 丰岛电子科技(苏州)有限公司 | Charging wire and method for displaying charging state |
| CN105375207A (en) * | 2015-11-05 | 2016-03-02 | 罗勇进 | USB cable |
| CN105470758A (en) * | 2015-11-20 | 2016-04-06 | 苏州佳世达电通有限公司 | USB connecting line |
| CN105470758B (en) * | 2015-11-20 | 2017-12-29 | 苏州佳世达电通有限公司 | USB connecting lines |
| EP3314705B1 (en) * | 2015-12-18 | 2020-04-01 | Hewlett-Packard Development Company, L.P. | Led operational profiles for usb-c cable plugs |
| CN105974176A (en) * | 2016-05-03 | 2016-09-28 | 深圳市格劳瑞电子有限公司 | USB Type-C volt ammeter and detection method thereof |
| CN105974176B (en) * | 2016-05-03 | 2019-03-01 | 深圳市格劳瑞电子有限公司 | A kind of USB Type-C volometer and its detection method |
| CN106451637A (en) * | 2016-11-03 | 2017-02-22 | 惠州Tcl移动通信有限公司 | Charge indicating lamp control method and system and mobile terminal |
| CN108063348A (en) * | 2016-11-07 | 2018-05-22 | 深圳市展卓电子科技有限公司 | A kind of digital equipment intelligent data charging wire |
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