CN203300899U - Light emitting data line - Google Patents
Light emitting data line Download PDFInfo
- Publication number
- CN203300899U CN203300899U CN2013201865669U CN201320186566U CN203300899U CN 203300899 U CN203300899 U CN 203300899U CN 2013201865669 U CN2013201865669 U CN 2013201865669U CN 201320186566 U CN201320186566 U CN 201320186566U CN 203300899 U CN203300899 U CN 203300899U
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- China
- Prior art keywords
- operational amplifier
- plug
- data line
- miniature
- light emitting
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- 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.)
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Abstract
The utility model provides a light emitting data line, including a USB plug and a mini five-pin plug. A data cable is connected between the USB plug and the mini five-pin plug, wherein the mini five-pin plug is also connected with a light emitting circuit. The light emitting data line is characterized in that one end of a first resistor R1 is connected to the mini five-pin plug, the other end of the first resistor R1 is in ground connection, the negative pole input terminal of a first operational amplifier is connected with the mini five-pin plug, the positive pole input terminal of the first operational amplifier is connected with reference voltage, the output terminal of the first operational amplifier is connected to an LED, the negative pole input terminal of a second operational amplifier is connected to the output terminal of the first operational amplifier, the positive pole input terminal of the second operational amplifier is connected to the reference voltage and the output terminal of the second operational amplifier is connected with another LED. The light emitting data line provided by the utility model has a light emitting and charging indicator function, and is small in heat, high in efficiency, small in size, and large in charging current.
Description
Technical field
The utility model relates to electronic technology field, particularly a kind of luminous data line.
Background technology
the indication scheme of charging cheaply at present is all directly on current sense resistor and connect the mode of triode driving LED indication, and mostly being LED is made on charger (even LED shows on wire rod, but current detection circuit is also to coordinate the charger internal circuit to realize, can't do data wire uses), be made in like this output current up to 1A and above situation, pressure drop loss on sample resistance is considerable, can be up to more than 0.7W, therefore this charging display mode generally only limits to electric current in 500mA, and the efficiency of rechargeable electrical energy conversion is lower, heating is serious.Be not provided on data wire the technology of doing luminous charging indication function in prior art.
The utility model content
The utility model provides a kind of luminous data line, and data wire is had luminous charging indication function, and generate heat little, efficiency is high, volume is little, charging current is large.
To achieve these goals, the utility model provides following technical scheme:
A kind of luminous data line, comprise: USB plug and miniature five-point plug are connected with the data wire for+5V power supply and transfer of data, wherein between described USB plug and miniature five-point plug, also be connected with illuminating circuit on described miniature five-point plug, described illuminating circuit comprises:
One end of the first resistance R 1 is connected on described miniature five-point plug, the other end ground connection of described the first resistance R 1, the negative input of the first operational amplifier connects described miniature five-point plug, the electrode input end of described the first operational amplifier connects reference voltage, and the output of described the first operational amplifier connects a LED;
Described illuminating circuit also comprises: the second operational amplifier, the negative input of described the second operational amplifier connects the output of described the first operational amplifier, the electrode input end of described the second operational amplifier connects reference voltage, and the output of described the second operational amplifier connects another LED.
Preferably, described illuminating circuit is arranged on the side of described miniature five-point plug, and described illuminating circuit coated outside has translucent cover.
, by implementing above technical scheme, have following technique effect: the luminous data line that the utility model provides, make data wire have luminous charging indication function, and generate heat little, efficiency is high, volume is little, charging current is large.
Description of drawings
The circuit theory diagrams of the luminous data line that Fig. 1 provides for the utility model.
Embodiment
, in order better to understand the technical solution of the utility model, below in conjunction with accompanying drawing, describe the embodiment that the utility model provides in detail.
The utility model embodiment provides a kind of luminous data line, as shown in Figure 1, it comprises: USB plug and miniature five-point plug, be connected with the data wire for+5V power supply and transfer of data between described USB plug and miniature five-point plug (Micro5pin plug), wherein, also be connected with illuminating circuit on described miniature five-point plug, described illuminating circuit comprises:
One end of the first resistance R 1 is connected on described miniature five-point plug, the other end ground connection of described the first resistance R 1, the negative input of the first operational amplifier connects described miniature five-point plug, the electrode input end of described the first operational amplifier U1 connects reference voltage 1, and the output of described the first operational amplifier U1 connects a LED.Wherein, this first resistance R 1 is used for current sampling, and USB plug is used for being plugged on charger or computer USB female seat.
In other embodiments, on above-described embodiment basis, further, described illuminating circuit also comprises: the second operational amplifier, the negative input of described the second operational amplifier U2 connects the output of described the first operational amplifier U1, the electrode input end of described the second operational amplifier U2 connects reference voltage 2, and the output of described the second operational amplifier U2 connects another LED.
In the above-described embodiments, preferably, described illuminating circuit is arranged on the side of described miniature five-point plug, and described illuminating circuit coated outside has translucent cover, to facilitate the demonstration charged state.In other embodiments, also this circuit can be arranged on USB plug.
USB plug access standard USB female seat, charged the phone by miniature five-point plug, charge elementary, charging current will be greater than 100mA, this moment is at the current signal that is used on the first resistance R 1 of current sampling forming more than 10mV, current signal inputs to the negative input of the first operational amplifier U1, and the electrode input end of the first operational amplifier U1 connects the reference voltage of a voltage reference network, and the electric resistance partial pressure of voltage reference network is in the 12mV left and right.Relatively more luminous by the LED that low level of output output connects the first operational amplifier U1 output through the first operational amplifier U1, the low level of the first operational amplifier U1 output inputs to the negative input of the second operational amplifier U2 simultaneously, through the second operational amplifier U2 carry out internal inverted relatively after by high level of the output of the second operational amplifier U2 output, the LED that connect the second operational amplifier U1 output this moment is closed and does not work, and expression is charged; After battery of mobile phone nearly is full of or pulls out mobile phone, charging current will or be 0 less than 100mA, current signal on the first resistance R 1 will or be 0 less than 10mV at this moment, this moment the first operational amplifier U1 and the two the first operational amplifier U2 state turnover, the first operational amplifier U1 output output high level, the output output low level of the second operational amplifier U2, represent the charging end or do not take part in machine; Usb data partly is connected directly to miniature five-point plug output.
Above a kind of luminous data line that the utility model embodiment is provided is described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (2)
1. luminous data line, comprise: USB plug and miniature five-point plug, be connected with the data wire for+5V power supply and transfer of data between described USB plug and miniature five-point plug, it is characterized in that, also be connected with illuminating circuit on described miniature five-point plug, described illuminating circuit comprises:
One end of the first resistance R 1 is connected on described miniature five-point plug, the other end ground connection of described the first resistance R 1, the negative input of the first operational amplifier connects described miniature five-point plug, the electrode input end of described the first operational amplifier connects reference voltage, and the output of described the first operational amplifier connects a LED;
Described illuminating circuit also comprises: the second operational amplifier, the negative input of described the second operational amplifier connects the output of described the first operational amplifier, the electrode input end of described the second operational amplifier connects reference voltage, and the output of described the second operational amplifier connects another LED.
2. luminous data line as claimed in claim 1, is characterized in that, described illuminating circuit is arranged on the side of described miniature five-point plug, and described illuminating circuit coated outside has translucent cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201865669U CN203300899U (en) | 2013-04-15 | 2013-04-15 | Light emitting data line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201865669U CN203300899U (en) | 2013-04-15 | 2013-04-15 | Light emitting data line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203300899U true CN203300899U (en) | 2013-11-20 |
Family
ID=49576882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201865669U Expired - Fee Related CN203300899U (en) | 2013-04-15 | 2013-04-15 | Light emitting data line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203300899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470758A (en) * | 2015-11-20 | 2016-04-06 | 苏州佳世达电通有限公司 | USB connecting line |
-
2013
- 2013-04-15 CN CN2013201865669U patent/CN203300899U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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: 20131120 Termination date: 20170415 |