CN101989751B - Power supply device, portable electronic device and related judgment method - Google Patents
Power supply device, portable electronic device and related judgment method Download PDFInfo
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- CN101989751B CN101989751B CN200910160235.6A CN200910160235A CN101989751B CN 101989751 B CN101989751 B CN 101989751B CN 200910160235 A CN200910160235 A CN 200910160235A CN 101989751 B CN101989751 B CN 101989751B
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Abstract
The invention relates to a power supply device, a portable electronic device and a related judgment method. The portable electronic device is connected with the power supply device through a transmission line and contains a special connector, a charging control circuit and a judging circuit, wherein the special connector contains five end points which correspond to the five pins of the universal serial bus connector of the power supply device. When the power supply device is connected with the portable electronic device, the first end point has a high logic level, the fourth end point has a high logic level, the third end point increases the voltage level of the second end point to have a high logic level, the judging circuit reduces the voltage level of the third end point and detects the voltage level of the third end point to generate a judgment result for judging the kind of the power supply device.
Description
Technical field
The present invention relates to a kind of judgment mechanism of power supply device, relate in particular to a kind of power supply device, can judge portable electronic devices and the related judgment method thereof of the kind of power supply device.
background technology
At present mobile phone on the market all has exclusive separately charger for mobile phone according to label or model, for example: the mobile phone that the charger for mobile phone of H label only can offer H label uses, and cannot charge to the mobile phone of N label or M label.Yet the specification that charger for mobile phone attachment unit interface adopts USB (Universal Serial Bus, USB) is carried out by Chinese Information Industry Department, that is same charger can be used to the mobile phone charging to different vendor, different model.
In general, the coffret of USB has five Transport endpoints, and it is respectively VBUS end points, D+ end points, D-end points, ID end points and GND end points.For the charger of China's Mainland specification, it is the recognition feature that D+ end points and D-end points are usingd as China's Mainland specification charger at the body internal short-circuit of charger.
And when the USB connector of mobile phone is connected to the USB connector of an electronic installation, mobile phone must possess the ability that can correctly differentiate the kind of this electronic installation, next can carry out correct running, for example, when this electronic installation is a charger, this mobile phone just can utilize this charger to charge to itself; Again for example, when this electronic installation is not a charger while being a main frame, this mobile phone just can carry out with this main frame the action of transfer of data.In addition, adopt the concept of mobile phone charging of same charger Lai Dui different vendor, different model no doubt convenient, but the charger kind that is full of is on the market too numerous and diverse, cannot carry out keyholed back plate to its quality.While not limited if mobile phone can allow to be charged by the charger of arbitrary manufacturer, mobile phone may cause its inner condenser voltage to exceed electric capacity rated value and damage capacitor because of being continued charging, what is more, may cause the infringement of other elements or cannot meet safety standard and produce danger.Therefore, need at present portable electronic devices and the correlation discriminating mechanism of the kind that can differentiate this electronic installation badly.
summary of the invention
Therefore, the portable electronic devices that one of object of the present invention is the kind that proposes a kind of power supply device, can judge power supply device with and related judgment method, to solve the above problems.
The present invention discloses a kind of power supply device.Power supply device comprises a power input, a power-switching circuit and a universal serial bus connector.Power input is used for receiving an input power.Power-switching circuit is coupled to this power input, is used for converting this input power to a charge power supply.Universal serial bus connector includes: be used to provide this charge power supply one first pin, be used for transmitting data one second pin, be used for transmitting data one the 3rd pin, be used as identification judgement one the 4th pin, be coupled to one the 5th pin and a resistive element of an earth terminal.Wherein resistive element is coupled between this second pin and the 3rd pin, and is more than or equal to 150K ohm.
The present invention also discloses a kind of portable electronic devices, is used for being connected in a power supply device by a transmission line.This power supply device has a universal serial bus connector, and this universal serial bus connector comprises and is used to provide one first pin of a charge power supply, one second pin that is used for transmitting data, one the 3rd pin that is used for transmitting data, one the 4th pin that is used as identification judgement and one the 5th pin that is coupled to an earth terminal.This portable electronic devices comprises a specific connector, a charging control circuit and a decision circuitry.Specific connector comprises the 5th pin that this first pin that one first end points corresponds to this universal serial bus connector, this second pin that one second end points corresponds to this universal serial bus connector, the 3rd pin that one the 3rd end points corresponds to this universal serial bus connector, the 4th pin that one the 4th end points corresponds to this universal serial bus connector and a five terminal point correspond to this universal serial bus connector.Charging control circuit is coupled to this specific connector, is used for from this first pin of this universal serial bus connector, receiving this charge power supply by this first end points.Decision circuitry is coupled to this specific connector and this charging control circuit.Decision circuitry comprises one first judging unit, the voltage level that is used for being connected to this portable electronic devices, this first end points in this power supply device be the voltage level of high logic level, the 4th end points be the voltage level of high logic level and the 3rd end points after drawing high this double-pointed voltage level during for high logic level, the voltage level that drags down the voltage level of the 3rd end points and detect the 3rd end points is to produce one first judged result.Wherein, this decision circuitry judges the kind of this power supply device according to this first judged result at least.
The present invention also discloses the method for the kind of a kind of judgement one power supply device, and this power supply device is connected in a portable electronic devices by a transmission line.This power supply device has a universal serial bus connector, this universal serial bus connector comprises one first pin that is used to provide a charge power supply, be used for transmitting one second pin of data, be used for transmitting one the 3rd pin of data, be used as one the 4th pin of identification judgement and one the 5th pin that is coupled to an earth terminal, and this portable electronic devices has a specific connector, this specific connector comprises this first pin that one first end points corresponds to this universal serial bus connector, one second end points corresponds to this second pin of this universal serial bus connector, one the 3rd end points corresponds to the 3rd pin of this universal serial bus connector, one the 4th end points corresponds to the 4th pin of this universal serial bus connector and the 5th pin that a five terminal point corresponds to this universal serial bus connector.The method comprises step: the voltage level that is connected to this portable electronic devices, this first end points in this power supply device is that the voltage level of high logic level, the 4th end points is that the voltage level of high logic level and the 3rd end points during for high logic level, drags down the voltage level of the 3rd end points after drawing high this double-pointed voltage level; When dragging down the voltage level of the 3rd end points, detect the voltage level of the 3rd end points to produce one first judged result; And the kind that judges this power supply device according to this first judged result at least.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of an embodiment of power supply device of the present invention.
Fig. 2 is the schematic diagram of known power source feeding mechanism.
Fig. 3 is the schematic diagram of known power source feeding mechanism.
Fig. 4 is the schematic diagram of known power source feeding mechanism.
Fig. 5 is the schematic diagram of an embodiment of portable electronic devices of the present invention.
Fig. 6 is the flow chart of an example operation of the method for the present invention's kind of judging a power supply device.
[main element symbol description]
100～400 power supply devices
110 power inputs
120 power-switching circuits
130,150,230,350,430 universal serial bus connectors
131～135,151～155,231～235,351～355,431～435 pins
R, R1, R2 resistive element
Pin input power
Pcharge charge power supply
VBUS, D+, D-, ID, GND usb signal
140,340 transmission lines
160 connecting lines
500 portable electronic devices
510 specific connectors
520 charging control circuits
530 decision circuitry
531 first judging units
532 second judging units
533 the 3rd judging units
534 the 4th judging units
DR1～DR4 judged result
511～555 end points
602～644 steps
Embodiment
Please refer to Fig. 1, Fig. 1 is the schematic diagram of an embodiment of power supply device 100 of the present invention.As shown in Figure 1, power supply device 100 comprises (but being not limited to) power input 110, a power-switching circuit 120 and a universal serial bus connector 130.Wherein, power input 110 is used for receiving an input power Pin, and power-switching circuit 120 is coupled to power input 110, is used for converting input power Pin to a charge power supply Pcharge.Universal serial bus connector 130 comprises five pins 131～135 and a resistive element R, wherein the first pin 131 is used to provide charge power supply Pcharge, the second pin 132, the 3rd pin 133 are used for transmitting data, the 4th pin 134 is as identification judgement, and the 5th pin 135 is coupled to an earth terminal.In other words, the first pin 131 is used for transmitting VBUS signal, and the second pin 132 is used for transmitting D+ signal, and the 3rd pin 133 is used for transmitting D-signal, and the 4th pin 134 is used for transmitting ID signal, and the 5th pin 135 is used for transmitting GND signal.Because USB (universal serial bus) is well known to those skilled in the art, at this, do not add to repeat.
Note that resistive element R is coupled between the second pin 132 (that is D+) and the 3rd pin 133 (that is D-), and resistive element R is more than or equal to 150K ohm, but this is not restrictive condition of the present invention.In addition, power supply device 100 can be a charger, and power-switching circuit 120 can be an interchange to-DC switching circuit (AC to DC converter), is used for converting an alternating current (for example 110V or 220V) to a direct current.
Generally speaking, power supply device 100 can be connected with a portable electronic devices by a transmission line 140, and provides charge power supply Pcharge to this portable electronic devices, so that portable electronic devices is charged.Transmission line 140 is a transmission line of universal serial bus, and it comprises a universal serial bus connector 150 and a connecting line 160.By Fig. 1, can be learnt, the universal serial bus connector 150 of transmission line 140 also comprises five pins 151～155, corresponds to respectively five pins 131～135 of the universal serial bus connector 130 of power supply device 100.It should be noted that power supply device 100 herein can be designed to same set of accessory with transmission line 140, also can be designed to two independent accessory and individualism.When power supply device 100 and transmission line 140 are designed to two independent accessory, transmission line 140 can also be used as the use of transfer of data, is not only confined to the use of charging, to save cost and to expand its use.
Had on the market at present power supply device miscellaneous, next, lifting several common power supply devices is example, in order to the description of follow-up specification.
Please refer to Fig. 2, Fig. 2 is the schematic diagram of a known power supply device 200.As shown in Figure 2, power supply device 200 comprises power input 110, power-switching circuit 120 and universal serial bus connector 230.Wherein, universal serial bus connector 230 comprises five pins 231～235, similar with the universal serial bus connector 130 shown in Fig. 1, different is between the second pin 232 and the 3rd pin 234, not connect any resistive element R (or other elements).Because the universal serial bus connector 230 of power supply device 200 is not done any change, and the universal serial bus connector 150 of transmission line 140 is not made any change yet, this power supply device 200 may or be linked to a main frame by a transmission line for general commercially available charger.
Please refer to Fig. 3, Fig. 3 is the schematic diagram of a known power supply device 300.As shown in Figure 3, power supply device 300 comprises power input 110, power-switching circuit 120 and universal serial bus connector 330.Wherein, universal serial bus connector 330 is identical with the universal serial bus connector 230 shown in Fig. 2, different is to make a little change at the universal serial bus connector 350 of transmission line 340 ends, and it is that the 4th pin 354 (that is ID pin) of universal serial bus connector 350 is coupled to earth terminal.Therefore, when power supply device 300 is connected with transmission line 340, the voltage level of the 4th pin 354 of the universal serial bus connector 230 of power supply device 300 can be pulled low to low logic level (logic low), can tell by this feature the kind of power supply device 300.
Please refer to Fig. 4, Fig. 4 is the schematic diagram of a known power supply device 400.As shown in Figure 4, power supply device 400 comprises power input 110, power-switching circuit 120 and universal serial bus connector 430.Wherein, universal serial bus connector 430 comprises five pins 431～435, similar with the universal serial bus connector 130 shown in Fig. 1, different is the second pin 432 and the 3rd pin 434 be direct short-circuit together, this power supply device 400 is for meeting a charger of China's Mainland charger specification.
In order to tell aforementioned various different types of power supply device 100～400, therefore the invention discloses a kind of mechanism and relevant portable electronic devices (such as a mobile phone or a personal digital assistant etc.) thereof that judges the kind of power supply device.
Please refer to Fig. 5, Fig. 5 is the schematic diagram of an embodiment of portable electronic devices 500 of the present invention.Portable electronic devices 500 is used for being connected in a power supply device by a transmission line, in the present embodiment, the portable electronic devices 500 of take is connected in power supply device 100 by the transmission line 140 shown in Fig. 1 and describes as example, but this is not restrictive condition of the present invention.As shown in Figure 5, portable electronic devices 500 comprises (but being not limited to) specific connector 510, one charging control circuit 520 and a decision circuitry 530, wherein, specific connector 510 comprises five end points 511～555, wherein the first end points 511 corresponds to the first pin 131 of the universal serial bus connector 130 of power supply device 100, the second end points 512 corresponds to the second pin 132 of universal serial bus connector 130, the 3rd end points 513 corresponds to the 3rd pin 133 of universal serial bus connector 130, the 4th end points 514 corresponds to the 4th pin 134 of universal serial bus connector 130, and five terminal point 515 corresponds to the 5th pin 135 of universal serial bus connector 130.
Please continue to refer to Fig. 5, charging control circuit 520 is coupled to specific connector 510, be used for from the first pin 131 of universal serial bus connector 130, receiving charge power supply Pcharge by the first end points 511, charging control circuit 520 recycling charge power supply Pcharge charge to portable electronic devices 500 afterwards.Decision circuitry 530 is coupled to specific connector 510 and charging control circuit 520.Decision circuitry 530 comprises (but being not limited to) first judging unit 531, the second judging unit 532, the 3rd judging unit 533 and the 4th judging unit 534.When the voltage level that the 3rd judging unit 533 is used for being connected to portable electronic devices 500 and the first end points 511 in a power supply device is high logic level, judge that the voltage level of the 4th end points 514 (that is ID end points) is to produce one first judged result DR1; The second judging unit 532 is used for when drawing high the voltage level of the second end points 512 (that is D+ end points), judges that the voltage level of the 3rd end points 513 (that is D-end points) is to produce one second judged result DR2; The first judging unit 531 is used for when dragging down the voltage level of the 3rd end points 513, judges that the voltage level of the 3rd end points 513 is to produce one the 3rd judged result DR3; And the 4th judging unit 534 be used for, when the second judged result DR2 of the second judging unit 532 shows that the voltage level of the 3rd end points 513 is low logic level, judging whether portable electronic devices 500 is that a USB inking device is to produce one the 4th judged result DR4.Finally, decision circuitry 530 can judge according to first, second, third, fourth judged result DR1～DR4 the kind of this power supply device that is connected to portable electronic devices 500.
Please refer to Fig. 6, Fig. 6 is the flow chart of an example operation of the method for the present invention's kind of judging a power supply device, it comprises following step (if note that and can obtain roughly the same result, the following step non-limiting will execution according to the order shown in Fig. 6):
Step 602: start.
Step 604 a: power supply device is connected to portable electronic devices 500.
Step 606: the voltage level of the first end points 511 is high logic level.
Step 608: judge that the voltage level of the 4th end points 514 is to produce the first judged result DR1.When the first judged result DR1 shows that the voltage level of the 4th end points 514 is low logic level, perform step 610; Otherwise, perform step 620.
Step 610: when the first judged result DR1 shows that the voltage level of the 4th end points 514 is low logic level, judge that this power supply device is as power supply device 300.
Step 620: when the first judged result DR1 shows that the voltage level of the 4th end points 514 is high logic level, draw high the voltage level of the second end points 512.
Step 622: when drawing high the voltage level of the second end points 512, judge that the voltage level of the 3rd end points 513 is to produce the second judged result DR2.When the second judged result DR2 shows that the voltage level of the 3rd end points 513 is high logic level, perform step 630; Otherwise, perform step 640.
Step 630: when the second judged result DR2 shows that the voltage level of the 3rd end points 513 is high logic level, drag down the voltage level of the 3rd end points 513.
Step 632: when dragging down the voltage level of the 3rd end points 513, judge that the voltage level of the 3rd end points 513 is to produce the 3rd judged result DR3.When the 3rd judged result DR3 shows that the voltage level of the 3rd end points 513 is high logic level, perform step 634; Otherwise, perform step 636.
Step 634: judge that this power supply device is as power supply device 400 charger of China's Mainland charger specification (that is meet).
Step 636: judge that this power supply device is as power supply device 100.
Step 640: judge whether portable electronic devices 500 is that a USB inking device is to produce the 4th judged result DR4.When the 4th judged result DR4 shows that portable electronic devices 500 is a USB inking device, perform step 642; Otherwise, perform step 644.
Step 642: judge that this power supply device is as a main frame.
Step 644: judge the charger that this power supply device is non-computer main frame (that is general commercially available charger).
Next, the power supply device 100～400 shown in each step, each element shown in Fig. 5 and Fig. 1～Fig. 4 shown in collocation Fig. 6 is illustrated to the kind that how to judge this power supply device.First, a power supply device is connected to portable electronic devices 500 (step 604), now, the voltage level of the first end points 511 (that is VBUS end points) is high logic level (step 606).Then, the 3rd judging unit 533 can judge the voltage level (step 608) of the 4th end points 514 (that is ID end points), when the voltage level of the 4th end points 514 is low logic level, decision circuitry 530 can judge that this power supply device is as the power supply device 300 (step 610) shown in Fig. 3; And when the voltage level of the 4th end points 514 is high logic level, the second judging unit 532 can carry out the detection (step 620～622) of the second judged result DR2.
Next, first by resistive element R1, draw high the voltage level (step 620) of the second end points 512, and the second judging unit 532 can judge that the voltage level of the 3rd end points 513 (that is D-end points) produces the second judged result DR2 (step 622).When the voltage level of the 3rd end points 513 is high logic level, must first by resistive element R2, drag down the voltage level (step 630) of the 3rd end points 513, and then utilize the first judging unit 531 to judge the voltage level (step 632) of the 3rd end points 513.When the voltage level of the 3rd end points 513 is high logic level, decision circuitry 530 can judge that this power supply device is as power supply device 400; And when the voltage level of the 3rd end points 513 is low logic level, decision circuitry 530 can judge that this power supply device is as power supply device 100.
On the other hand, when the voltage level of the second judged result DR2 demonstration the 3rd end points 513 in step 622 is low logic level, the 4th judging unit 534 can judge whether portable electronic devices 500 is a USB inking device (step 640).If portable electronic devices 500 is while being a USB inking device, decision circuitry 530 can judge that this power supply device is as a main frame (step 642); When if portable electronic devices 500 is not a USB inking device, decision circuitry 530 can be judged the charger that this power supply device is non-computer main frame (that is general commercially available charger) (step 644).
In brief, can be by the disclosed judgment mechanism of the disclosed portable electronic devices 500 collocation Fig. 6 of Fig. 5, differentiating the power supply device being connected with portable electronic devices 500 is whichever (for example power supply device 100～400 of Fig. 1～Fig. 4).
Please note, above-mentioned example is only for being used for illustrating application of the present invention, it is not restrictive condition of the present invention, those skilled in the art should understand, under spirit of the present invention, the step of the flow process of Fig. 6 can increase other intermediate steps again or several steps can be merged into one step, to do suitable variation.
Above-described embodiment is only used for illustrating technical characterictic of the present invention, is not used for limiting to scope of the present invention.As from the foregoing, the invention provides a kind of power supply device, the portable electronic devices that can judge power supply device kind and related judgment method thereof.Power supply device 100 disclosed in this invention increases by a resistive element R between second pin 132 (that is D+ pin) and the 3rd pin 133 (that is D-pin) of universal serial bus connector 130, it can be designed to two independent accessory with a transmission line 140, transmission line 140 can also be used as the use of transfer of data, to save cost and to expand its use.In addition, by increasing decision circuitry 530 (comprising the first judging unit 531, the second judging unit 532, the 3rd judging unit 533 and the 4th judging unit 534) in portable electronic devices 500, and the judgment mechanism disclosed in this invention of arranging in pairs or groups (for example utilizes specific connector 510 when connecting different types of power supply device, each end points has the characteristic of different voltage levels), thus, the kind that just can judge the power supply device that is connected to portable electronic devices 500 is whichever (for example power supply device 100～400 of Fig. 1～Fig. 4).Then, can for different types of power supply device, do according to design requirement the expansion of other application, yet range of application is not restrictive condition of the present invention.In addition, also can utilize judgment mechanism disclosed in this invention to carry out quality keyholed back plate to power supply device, to avoid portable electronic devices to be subjected to the damage of the bad charger of QC.
The foregoing is only the preferred embodiments of the present invention, all equalizations of doing according to the claims in the present invention book change and modify, and all should belong to covering scope of the present invention.
Claims (20)
1. a portable electronic devices, be used for being connected in a power supply device by a transmission line, this power supply device has a universal serial bus connector, this universal serial bus connector comprises and is used to provide one first pin of a charge power supply, one second pin that is used for transmitting data, one the 3rd pin that is used for transmitting data, one the 4th pin that is used as identification judgement and one the 5th pin that is coupled to an earth terminal, and this portable electronic devices includes:
One specific connector, comprises the 5th pin that this first pin that one first end points corresponds to this universal serial bus connector, this second pin that one second end points corresponds to this universal serial bus connector, the 3rd pin that one the 3rd end points corresponds to this universal serial bus connector, the 4th pin that one the 4th end points corresponds to this universal serial bus connector and a five terminal point correspond to this universal serial bus connector;
One charging control circuit, is coupled to this specific connector, is used for from this first pin of this universal serial bus connector, receiving this charge power supply by this first end points; And
One decision circuitry, is coupled to this specific connector and this charging control circuit, and this decision circuitry includes:
One first judging unit, the voltage level that is used for being connected to this portable electronic devices, this first end points in this power supply device be the voltage level of high logic level, the 4th end points be high logic level and drawing high this double-pointed voltage level after the voltage level of the 3rd end points while being high logic level, the voltage level that drags down the voltage level of the 3rd end points and detect the 3rd end points is to produce one the 3rd judged result;
Wherein, this decision circuitry is judged the kind of this power supply device according to the 3rd judged result at least.
2. portable electronic devices as claimed in claim 1, wherein this specific connector meets a USB (universal serial bus), this first end points is used for transmitting a VBUS signal, this second end points is used for transmitting a D+ signal, the 3rd end points is used for transmitting a D-signal, and the 4th end points is used for transmitting an ID signal.
3. portable electronic devices as claimed in claim 2, wherein, when the voltage level of the 3rd judgment result displays the 3rd end points of this first judging unit is low logic level, this decision circuitry judges that this power supply device is as one first charger; And when the voltage level of the 3rd judgment result displays the 3rd end points of this first judging unit is high logic level, this decision circuitry judges that this power supply device is as one second charger that meets China's Mainland charger specification.
4. portable electronic devices as claimed in claim 2, wherein this decision circuitry also includes:
One second judging unit, the voltage level that is used for being connected to this portable electronic devices, this first end points in this power supply device is the voltage level of high logic level and the 4th end points while being high logic level, and the voltage level of drawing high this double-pointed voltage level and detecting the 3rd end points is to produce one second judged result;
Wherein, this decision circuitry according to the 3rd, the second judged result judges the kind of this power supply device.
5. portable electronic devices as claimed in claim 4, wherein this decision circuitry also includes:
One the 3rd judging unit, when the voltage level that is used for being connected to this portable electronic devices and this first end points in this power supply device is high logic level, detects the voltage level of the 4th end points to produce one first judged result;
Wherein, this decision circuitry is judged the kind of this power supply device according to this first, second, third judged result.
6. portable electronic devices as claimed in claim 5, wherein, when the voltage level of this first judgment result displays the 4th end points of the 3rd judging unit is low logic level, this decision circuitry can judge that this power supply device is as a particular charger; And when the voltage level of this first judgment result displays the 4th end points of the 3rd judging unit is high logic level, this second judging unit carries out the detection of this second judged result.
7. portable electronic devices as claimed in claim 2, wherein this decision circuitry also includes:
One second judging unit, the voltage level that is used for being connected to this portable electronic devices, this first end points in this power supply device is that the voltage level of high logic level and the 4th end points is while being high logic level, the voltage level of drawing high this double-pointed voltage level and detecting the 3rd end points is to produce one second judged result, wherein, when the voltage level of this second judgment result displays the 3rd end points of this second judging unit is high logic level, this first judging unit carries out the detection of the 3rd judged result; And
One the 4th judging unit, whether be used for when the voltage level of this second judgment result displays the 3rd end points of this second judging unit is low logic level, detecting this portable electronic devices is that a universal serial bus configuration device is to produce one the 4th judged result;
Wherein, this decision circuitry is judged the kind of this power supply device according to the the 3rd, second, the 4th judged result.
8. portable electronic devices as claimed in claim 7, wherein, when the 4th this portable electronic devices of judgment result displays of the 4th judging unit is this universal serial bus configuration device, this decision circuitry judges that this power supply device is as a main frame; And when the 4th this portable electronic devices of judgment result displays is not this universal serial bus configuration device, this decision circuitry is judged the charger that this power supply device is non-computer main frame.
9. portable electronic devices as claimed in claim 7, wherein this decision circuitry also includes:
One the 3rd judging unit, when the voltage level that is used for being connected to this portable electronic devices and this first end points in this power supply device is high logic level, detects the voltage level of the 4th end points to produce one first judged result;
Wherein, this decision circuitry is judged the kind of this power supply device according to this first, second, third, fourth judged result.
10. portable electronic devices as claimed in claim 9, wherein, when the voltage level of this first judgment result displays the 4th end points of the 3rd judging unit is low logic level, this decision circuitry judges that this power supply device is as a particular charger; And when the voltage level of this first judgment result displays the 4th end points of the 3rd judging unit is high logic level, this second judging unit carries out the detection of this second judged result.
The method of the kind of 11. 1 kinds of judgement one power supply devices, this power supply device is connected in a portable electronic devices by a transmission line, this power supply device has a universal serial bus connector, this universal serial bus connector comprises one first pin that is used to provide a charge power supply, be used for transmitting one second pin of data, be used for transmitting one the 3rd pin of data, be used as one the 4th pin of identification judgement and one the 5th pin that is coupled to an earth terminal, and this portable electronic devices has a specific connector, this specific connector comprises this first pin that one first end points corresponds to this universal serial bus connector, one second end points corresponds to this second pin of this universal serial bus connector, one the 3rd end points corresponds to the 3rd pin of this universal serial bus connector, one the 4th end points corresponds to the 4th pin of this universal serial bus connector and the 5th pin that a five terminal point corresponds to this universal serial bus connector, the method includes:
The voltage level that is connected to this portable electronic devices, this first end points at this power supply device be the voltage level of high logic level, the 4th end points be high logic level and drawing high this double-pointed voltage level after the voltage level of the 3rd end points while being high logic level, drag down the voltage level of the 3rd end points;
When dragging down the voltage level of the 3rd end points, detect the voltage level of the 3rd end points to produce one the 3rd judged result; And
According to the 3rd judged result at least, judge the kind of this power supply device.
12. methods as claimed in claim 11, wherein this specific connector meets a USB (universal serial bus), this first end points is used for transmitting a VBUS signal, this second end points is used for transmitting a D+ signal, the 3rd end points is used for transmitting a D-signal, and the 4th end points is used for transmitting an ID signal.
13. methods as claimed in claim 12, wherein judge that according to the 3rd judged result at least the step of the kind of this power supply device includes:
When the voltage level of the 3rd judgment result displays the 3rd end points is low logic level, judge that this power supply device is as one first charger; And
When the voltage level of the 3rd judgment result displays the 3rd end points is high logic level, judge that this power supply device is as one second charger that meets a China's Mainland charger specification.
14. methods as claimed in claim 12, it also comprises:
The voltage level that is connected to this portable electronic devices, this first end points at this power supply device is the voltage level of high logic level and the 4th end points while being high logic level, draws high this double-pointed voltage level;
When drawing high this double-pointed voltage level, detect the voltage level of the 3rd end points to produce one second judged result; And
Foundation at least the 3rd judged result judges that the step of the kind of this power supply device includes:
According to the 3rd, the second judged result judges the kind of this power supply device.
15. methods as claimed in claim 14, it also comprises:
When the voltage level that is connected to this portable electronic devices and this first end points at this power supply device is high logic level, detect the voltage level of the 4th end points to produce one first judged result; And
Foundation at least the 3rd judged result judges that the step of the kind of this power supply device includes:
According to this first, second, third judged result, judge the kind of this power supply device.
16. methods as claimed in claim 15, wherein this first, second, third judged result judges that the step of the kind of this power supply device includes:
When the voltage level of this first judgment result displays the 4th end points is low logic level, judge that this power supply device is as a particular charger; And
When the voltage level of this first judgment result displays the 4th end points is high logic level, carry out the detection of this second judged result.
17. methods as claimed in claim 12, it also comprises:
The voltage level that is connected to this portable electronic devices, this first end points at this power supply device is the voltage level of high logic level and the 4th end points while being high logic level, draws high this double-pointed voltage level;
When drawing high this double-pointed voltage level, detect the voltage level of the 3rd end points to produce one second judged result;
When the voltage level of this second judgment result displays the 3rd end points is high logic level, carry out the detection of the 3rd judged result;
Whether when the voltage level of this second judgment result displays the 3rd end points is low logic level, detecting this portable electronic devices is that a universal serial bus configuration device is to produce one the 4th judged result; And
Foundation at least the 3rd judged result judges that the step of the kind of this power supply device includes:
According to the the 3rd, second, the 4th judged result, judge the kind of this power supply device.
18. methods as claimed in claim 17, wherein according to the the 3rd, second, the 4th judged result, judge that the step of the kind of this power supply device includes:
When the 4th this portable electronic devices of judgment result displays is this universal serial bus configuration device, judge that this power supply device is as a main frame; And
When the 4th this portable electronic devices of judgment result displays is not this universal serial bus configuration device, judge the charger that this power supply device is non-computer main frame.
19. methods as claimed in claim 17, it also comprises:
When the voltage level that is connected to this portable electronic devices and this first end points at this power supply device is high logic level, detect the voltage level of the 4th end points to produce one first judged result; And
Foundation at least the 3rd judged result judges that the step of the kind of this power supply device includes:
According to this first, second, third, fourth judged result, judge the kind of this power supply device.
20. methods as claimed in claim 19, wherein judge that according to the 3rd judged result at least the step of the kind of this power supply device includes:
When the voltage level of this first judgment result displays the 4th end points is low logic level, judge that this power supply device is as a particular charger; And
When the voltage level of this first judgment result displays the 4th end points is high logic level, carry out the detection of this second judged result.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910160235.6A CN101989751B (en) | 2009-07-30 | 2009-07-30 | Power supply device, portable electronic device and related judgment method |
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| CN200910160235.6A CN101989751B (en) | 2009-07-30 | 2009-07-30 | Power supply device, portable electronic device and related judgment method |
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| CN101989751A CN101989751A (en) | 2011-03-23 |
| CN101989751B true CN101989751B (en) | 2014-01-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013109410A (en) * | 2011-11-17 | 2013-06-06 | Semiconductor Components Industries Llc | Determination circuit |
| CN102684270B (en) * | 2012-05-31 | 2014-12-10 | 华为技术有限公司 | Method for identifying type of universal serial bus (USB) chargers and USB device |
| TWI501085B (en) * | 2013-05-17 | 2015-09-21 | Primax Electronics Ltd | Usb interface detection device |
| CN106532790B (en) * | 2015-09-11 | 2020-01-03 | 技嘉科技股份有限公司 | Mobile power supply device and power supply control method thereof |
| US20200097058A1 (en) * | 2016-03-09 | 2020-03-26 | Razer (Asia-Pacific) Pte. Ltd. | Computing devices, power supply devices, methods for controlling a computing device, and methods for controlling a power supply device |
| CN106774769B (en) * | 2016-12-21 | 2021-09-21 | 浙江大华技术股份有限公司 | Terminal working mode switching method and device and handheld terminal |
| CN111803081A (en) * | 2019-03-12 | 2020-10-23 | 疆域康健创新医疗科技成都有限公司 | Physiological parameter monitoring device and medical equipment with same |
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| CN1574539A (en) * | 2003-05-27 | 2005-02-02 | 捷讯研究有限公司 | Method and apparatus for controlling the charging state in a mobile electronic device |
| CN1892521A (en) * | 2005-07-05 | 2007-01-10 | 宏达国际电子股份有限公司 | Connection seat of portable electronic device |
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| US7581119B2 (en) * | 2004-07-18 | 2009-08-25 | Apple Inc. | Method and system for discovering a power source on a peripheral bus |
| WO2008001153A1 (en) * | 2006-06-29 | 2008-01-03 | Nokia Corporation | Device and method for detecting a usb charger |
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| CN1574539A (en) * | 2003-05-27 | 2005-02-02 | 捷讯研究有限公司 | Method and apparatus for controlling the charging state in a mobile electronic device |
| CN1892521A (en) * | 2005-07-05 | 2007-01-10 | 宏达国际电子股份有限公司 | Connection seat of portable electronic device |
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