CN102915098B - Be applicable to electronic system and the coupling arrangement of charging - Google Patents
Be applicable to electronic system and the coupling arrangement of charging Download PDFInfo
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- CN102915098B CN102915098B CN201110223534.7A CN201110223534A CN102915098B CN 102915098 B CN102915098 B CN 102915098B CN 201110223534 A CN201110223534 A CN 201110223534A CN 102915098 B CN102915098 B CN 102915098B
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Abstract
The invention provides a kind of electronic system, be applicable to charging, comprise main frame, universal serial bus connector, charging connection wire, connector, and mobile device.Charging connection wire is couple to main frame via universal serial bus connector, and obtain input voltage and input current from main frame, if and detect the magnitude of voltage of input voltage decline both fixed-ratio time, the current value according to magnitude of voltage and input current obtains maximal input.Mobile device is couple to charging connection wire via connector, and is charged by main frame, and selects charged state according to maximal input.The control circuit of charging connection wire of the present invention can the automatic decision main frame maximal input that can provide, and different output voltages is provided according to this, mobile device can be charged via its USB port at various different desktop computer, notebook computer, reduce the dependence of mobile device (particularly panel computer) for circumscribed charger, increase the convenience on using.
Description
Technical field
The present invention relates to a kind of electronic system and coupling arrangement, particularly relate to the electronic system and coupling arrangement that can be used for charging.
Background technology
Panel computer is now charged to system by circumscribed charger (Adaptor to tablet DC jack) mostly, and many panel computers are not by USB (universal serial bus) (Universal Serial Bus, USB, below all USB is called for short) the port function of directly charging, therefore carry go out and use at home time, many circumscribed chargers are very inconvenient.Circumscribed charger can be inserted on socket aperture and forget to pull up by most user, even and if do not use circumscribed charger, it still can consumed energy, causes the waste of electric power.
Summary of the invention
In order to overcome the above problems, the invention provides a kind of electronic system and coupling arrangement, available to utilize the USB port of desktop computer and notebook computer directly to charge to panel computer, reduce the inconvenience using circumscribed charger to bring.
The invention provides a kind of electronic system, be applicable to charging, comprise: a main frame; One coupling arrangement, comprising: a universal serial bus connector, is couple to above-mentioned main frame; One charging connection wire, be couple to above-mentioned universal serial bus connector, and include a control circuit, above-mentioned control circuit is in order to obtain an input voltage and an input current from above-mentioned main frame, and in detect above-mentioned input voltage one magnitude of voltage decline one both fixed-ratio time, the current value according to above-mentioned magnitude of voltage and above-mentioned input current obtains a maximal input; A connector; And a mobile device, comprising: a socket, be couple to the above-mentioned connector of above-mentioned coupling arrangement; And a charhing unit, charged by above-mentioned main frame, and select a charged state according to above-mentioned maximal input.
In addition, the invention provides a kind of coupling arrangement, be applicable to charging, comprise: a universal serial bus connector, in order to couple a main frame; One charging connection wire, be couple to above-mentioned universal serial bus connector, and include a control circuit, above-mentioned control circuit is in order to obtain an input voltage and an input current from above-mentioned main frame, and in detect above-mentioned input voltage one magnitude of voltage decline one both fixed-ratio time, the current value according to above-mentioned magnitude of voltage and above-mentioned input current provides an output voltage; A connector, in order to export above-mentioned output voltage.
The control circuit of charging connection wire of the present invention can the automatic decision main frame maximal input that can provide, and different output voltages is provided according to this, mobile device can be charged via its USB port at various different desktop computer, notebook computer, reduce the dependence of mobile device (particularly panel computer) for circumscribed charger, increase the convenience on using.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the electronic system of display according to one embodiment of the invention;
Fig. 2 is the schematic diagram of the coupling arrangement of display according to one embodiment of the invention;
Fig. 3 is the input voltage of charging connection wire of display according to one embodiment of the invention and the graph of a relation of input current;
Fig. 4 is the graph of a relation of maximal input, output voltage and the charged state of display according to one embodiment of the invention.
Wherein, description of reference numerals is as follows:
100 ~ electronic system; 102 ~ main frame;
104 ~ USB connector; 106 ~ charging connection wire;
107 ~ connector; 108 ~ socket;
110 ~ mobile device; 114 ~ charhing unit;
120 ~ coupling arrangement; 202 ~ inductance;
204 ~ transistor; 206 ~ diode;
208 ~ electric capacity; 210 ~ control circuit;
300 ~ coordinate diagram; 400 ~ graph of a relation;
A%, B% ~ both fixed-ratios; C1, C2 ~ curve;
GND ~ ground nodes; I1, I2 ~ critical electric current value;
Ii ~ input current; Io ~ output current;
N1, N2, N3, NO ~ node;
Vi ~ input voltage; Vo ~ output voltage;
Vp ~ initial voltage value;
Vp (1-A%) ~ critical voltage value;
Vr ~ normal output values;
Vr (1-B%) ~ lower limit output valve;
Vr (1+B%) ~ upper limit output valve;
W1, W2 ~ performance number.
Embodiment
Fig. 1 is the schematic diagram of the electronic system 100 of display according to one embodiment of the invention.As shown in Figure 1, electronic system 100 is applicable to charging, main frame (computer) 102, USB connector (USB connector) 104, charging connection wire (charging cable) 106, connector 107 can be comprised, and mobile device 110.Wherein, USB connector 104, charging connection wire 106, and connector 107 is collectively referred to as coupling arrangement 120.Main frame 102 can be desktop computer or notebook computer.Mobile device 110 can be panel computer (tablet PC) or smart mobile phone, comprises socket 108 and charhing unit 114.Charging connection wire 106 can be couple to main frame 102 via USB connector 104, and mobile device 110 can be couple to connector 107 via socket 108, and charhing unit 114 can charge via main frame 102.Connector 107 can be USB connector, mini USB (Micro USB) connector, or the connector of other kinds.
Fig. 2 is the schematic diagram of the coupling arrangement 120 of display according to one embodiment of the invention.As shown in Figure 2, the charging connection wire 106 of coupling arrangement 120 via USB connector 104, can obtain input voltage Vi and input current Ii from main frame 102, and exports output voltage Vo and output current Io to mobile device 110 via connector 107.Charging connection wire 106 can comprise: inductance 202, transistor (transistor) 204, diode (diode) 206, electric capacity 208, and control circuit 210.Inductance 202 is coupled between node N1, N3; Transistor 204 is coupled between node N3 and ground nodes GND, and comprises the grid being couple to control circuit 210; Diode 206 is coupled between node N3, NO; And electric capacity 208 is coupled between node NO and ground nodes GND.Control circuit 210 can measured node N1, N2 potential difference (PD) to obtain input voltage Vi, also can the electric current of measured node N1 or N3 to obtain input current Ii.In addition, control circuit 210 can (maximal input can calculate according to input voltage Vi and input current Vo according to maximal input, describe in detail in embodiment afterwards) adjustment transistor 204 grid voltage, to determine that output voltage Vo and output current Io is to select suitable output power.In addition, control circuit 210 also can adjust the input current obtained from main frame 102.
In general, main frame 102 (such as desktop computer, notebook computer) can provide the DC input voitage Vi of about 5V usually via USB port, but input current Ii is then different because each label specification is different, therefore different label main frame 102 maximal input that can provide is neither identical.The control circuit 210 of charging connection wire 106 of the present invention can automatic decision main frame 102 maximal input that can provide, then determines the output voltage Vo that is applicable to and output current Io, to charge to mobile device 110 according to maximal input.
Fig. 3 is the input voltage Vi of charging connection wire 106 of display according to one embodiment of the invention and the graph of a relation 300 of input current Ii.Time at the beginning, the magnitude of voltage (magnitude of the input voltage) of the input voltage Vi that the control circuit 210 of charging connection wire 106 obtains from main frame 102 is initial voltage value Vp (such as: 5V).In order to the maximal input of Test Host 102, the current value (magnitude of theinput current) of the input current Vi that the control circuit 210 of charging connection wire 106 obtains from main frame 102 can become large gradually.In the process, if main frame 102 provides reach maximal input, then the magnitude of voltage of input voltage Vi has declined starting.If when the control circuit 210 of charging connection wire 106 detects that magnitude of voltage have dropped set ratio A %, maximal input can be obtained according to magnitude of voltage now and current value.For example, if the relation of input voltage Vi and input current Ii is as shown in curve C 1, when the control circuit 210 of charging connection wire 106 detects that the magnitude of voltage of input voltage Vi have dropped set ratio A % by initial voltage value Vp, when becoming critical voltage value Vp (1-A%) (such as: 5V-5V*5%=4.75V), namely calculate maximal input (such as: the product of critical voltage value Vp (1-A%) and corresponding critical electric current value I1) according to critical voltage value Vp (1-A%) now and corresponding critical electric current value I1.In like manner, if the relation of input voltage Vi and input current Ii is as shown in curve C 2, the control circuit 210 of charging connection wire 106 can calculate maximal input (such as: the product of critical voltage value Vp (1-A%) and corresponding critical electric current value I2) according to critical voltage value Vp (1-A%) and corresponding critical electric current value I2.Set ratio A % can be 2%, 3%, 4%, 5%, 6% etc.After obtaining maximal input, the control circuit 210 of charging connection wire 106 can determine according to maximal input the output voltage Vo being supplied to mobile device 110, makes the charhing unit 114 of mobile device 110 judge the peak power output of main frame 102 according to output voltage Vo.
Fig. 4 is the graph of a relation 400 of maximal input, output voltage Vo and the charged state of display according to one embodiment of the invention.As shown in Figure 4, the charhing unit 114 of mobile device 110 can select charged state according to peak power output, and charging connection wire 106 can select output voltage Vo according to peak power output.For example, the control circuit 210 of charging connection wire 106 can compare peak power output and performance number W1, W2, and wherein performance number W2 is greater than W1.When peak power output is between performance number W1, W2, the magnitude of voltage of the output voltage Vo of charging connection wire 106 is normal output values Vr (such as: 12V), and the charged state of the charhing unit 114 of mobile device 110 is for charge at a slow speed; When peak power output is less than performance number W1, the magnitude of voltage of the output voltage Vo of charging connection wire 106 is that normal output values Vr declines set ratio B %, i.e. lower limit output valve Vr (1-B%) (such as: 12V-12V*5%=11.4V), and the charged state of the charhing unit 114 of mobile device 110 is not for charge, only normally work; When peak power output is greater than performance number W2, the magnitude of voltage of the output voltage Vo of charging connection wire 106 is that normal output values Vr rises set ratio B %, i.e. upper limit output valve Vr (1+B%) (such as: 12V+12V*5%=12.6V), and the charged state of the charhing unit 114 of mobile device 110 is rapid charge.Set ratio B % can be 2%, 3%, 4%, 5%, 6% etc.It should be noted that Fig. 4 is only an embodiment for the explanation of output voltage Vo and charged state, and be not used to limit the present invention.
The control circuit 210 of the charging connection wire 106 in the present invention can automatic decision main frame 102 maximal input that can provide, and different output voltage Vo is provided according to this, mobile device 110 can be charged via its USB port at various different desktop computer, notebook computer, reduce the dependence of mobile device 110 (particularly panel computer) for circumscribed charger, increase the convenience on using.
Though the present invention discloses as above with preferred embodiment; so itself and be not used to limit scope of the present invention; any those of ordinary skill in the art; without departing from the spirit and scope of the present invention; when doing a little change and retouching, the scope that therefore protection scope of the present invention ought define depending on appended claim is as the criterion.
Claims (6)
1. an electronic system, is applicable to charging, comprises:
One main frame;
One coupling arrangement, comprising:
One first universal serial bus connector, is couple to above-mentioned main frame;
One charging connection wire, be couple to above-mentioned universal serial bus connector, and include a control circuit, above-mentioned control circuit is in order to obtain an input voltage and an input current from above-mentioned main frame, and in detect above-mentioned input voltage one magnitude of voltage decline one both fixed-ratio time, the current value according to above-mentioned magnitude of voltage and above-mentioned input current obtains a maximal input;
A connector; And
One mobile device, comprising:
One socket, is couple to the above-mentioned connector of above-mentioned coupling arrangement; And
One charhing unit, is charged by above-mentioned main frame, and selects a charged state according to above-mentioned maximal input;
Wherein above-mentioned both fixed-ratios are 2 percent, 3 percent, 4 percent, or 6 percent.
2. electronic system as claimed in claim 1, wherein when the above-mentioned control circuit of above-mentioned charging connection wire obtains above-mentioned input current from above-mentioned main frame, above-mentioned current value becomes large gradually.
3. electronic system as claimed in claim 1, wherein the above-mentioned control circuit of above-mentioned charging connection wire is more according to above-mentioned maximal input, determine the output voltage being supplied to above-mentioned mobile device, and the above-mentioned charhing unit of above-mentioned mobile device selects above-mentioned charged state according to above-mentioned output voltage.
4. electronic system as claimed in claim 1, wherein when above-mentioned maximal input is less than first performance number, above-mentioned charged state is not for charge; When above-mentioned maximal input is between above-mentioned first performance number and one second performance number, above-mentioned charged state is for charge at a slow speed; And when above-mentioned maximal input is greater than above-mentioned second performance number, above-mentioned charged state is rapid charge, wherein above-mentioned second performance number is greater than above-mentioned first performance number.
5. a coupling arrangement, is applicable to charging, comprises:
One universal serial bus connector, in order to couple a main frame;
One charging connection wire, be couple to above-mentioned universal serial bus connector, and include a control circuit, above-mentioned control circuit is in order to obtain an input voltage and an input current from above-mentioned main frame, and in detect above-mentioned input voltage one magnitude of voltage decline one both fixed-ratio time, the current value according to above-mentioned magnitude of voltage and above-mentioned input current provides an output voltage;
A connector, in order to export above-mentioned output voltage;
Wherein above-mentioned both fixed-ratios are 2 percent, 3 percent, 4 percent, or 6 percent.
6. coupling arrangement as claimed in claim 5, wherein when the above-mentioned control circuit of above-mentioned charging connection wire obtains above-mentioned input current from above-mentioned main frame, above-mentioned current value becomes large gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223534.7A CN102915098B (en) | 2011-08-01 | 2011-08-01 | Be applicable to electronic system and the coupling arrangement of charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223534.7A CN102915098B (en) | 2011-08-01 | 2011-08-01 | Be applicable to electronic system and the coupling arrangement of charging |
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| Publication Number | Publication Date |
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| CN102915098A CN102915098A (en) | 2013-02-06 |
| CN102915098B true CN102915098B (en) | 2015-09-30 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680491B (en) * | 2014-11-18 | 2018-07-06 | 李文杰 | A kind of control method of charging equipment output power and intelligent charge equipment |
| CN106325453A (en) * | 2015-07-09 | 2017-01-11 | 中兴通讯股份有限公司 | Configuration method of output current and terminal |
Citations (4)
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|---|---|---|---|---|
| US6211649B1 (en) * | 1999-03-25 | 2001-04-03 | Sourcenext Corporation | USB cable and method for charging battery of external apparatus by using USB cable |
| US6833686B2 (en) * | 2003-02-21 | 2004-12-21 | Research In Motion Limited | Circuit and method of operation for an adaptive charge rate power supply |
| CN101232196A (en) * | 2008-02-02 | 2008-07-30 | 中兴通讯股份有限公司 | Control circuit of charging mode in USB charging stand and method thereof |
| US7656132B2 (en) * | 2006-11-14 | 2010-02-02 | Advanced Analogic Technologies, Inc. | Battery charger apparatus with a digital charge reduction loop |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060033474A1 (en) * | 2004-08-11 | 2006-02-16 | Shum Kin E | USB battery charger |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6211649B1 (en) * | 1999-03-25 | 2001-04-03 | Sourcenext Corporation | USB cable and method for charging battery of external apparatus by using USB cable |
| US6833686B2 (en) * | 2003-02-21 | 2004-12-21 | Research In Motion Limited | Circuit and method of operation for an adaptive charge rate power supply |
| US7656132B2 (en) * | 2006-11-14 | 2010-02-02 | Advanced Analogic Technologies, Inc. | Battery charger apparatus with a digital charge reduction loop |
| CN101232196A (en) * | 2008-02-02 | 2008-07-30 | 中兴通讯股份有限公司 | Control circuit of charging mode in USB charging stand and method thereof |
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| CN102915098A (en) | 2013-02-06 |
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