CN101989751A - 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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- CN101989751A CN101989751A CN2009101602356A CN200910160235A CN101989751A CN 101989751 A CN101989751 A CN 101989751A CN 2009101602356 A CN2009101602356 A CN 2009101602356A CN 200910160235 A CN200910160235 A CN 200910160235A CN 101989751 A CN101989751 A CN 101989751A
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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 the portable electronic devices and the correlated 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, and for example: the mobile phone that the charger for mobile phone of H label only can offer the H label uses, and can't the mobile phone of N label or M label be charged.Yet, Chinese Information Industry Department implementation charger for mobile phone attachment unit interface employing USB (Universal Serial Bus, specification USB), that is same charger can be used to the cell-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, its be with D+ end points and D-end points at the body internal short-circuit of charger with recognition feature as China's Mainland specification 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 was a charger, this mobile phone just can utilize this charger to come itself is charged; Again for example, be not to be a charger when being a main frame when this electronic installation, this mobile phone just can carry out the action of transfer of data with this main frame.In addition, it is no doubt convenient to adopt same charger to come the notion of the cell-phone charging of different vendor, different model, can't carry out keyholed back plate to its quality but the charger kind that is full of on the market is too numerous and diverse.When not limited if mobile phone can allow to be charged by the charger of arbitrary manufacturer, mobile phone may cause its interior capacitor voltage to exceed the electric capacity rated value and damage capacitor because of being continued charging, what is more, may cause other elements infringement or safety standard can't be met and produce danger.Therefore, need the portable electronic devices and the correlation discriminating mechanism of the kind that can differentiate this electronic installation at present badly.
Summary of the invention
Therefore, the portable electronic devices that one of purpose of the present invention is the kind that proposes a kind of power supply device, can judge power supply device with and the correlated 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 supply.Power-switching circuit is coupled to this power input, is used for this input power source conversion is become 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 one the 4th pin that identification judges, one the 5th pin and a resistive element that is coupled to an earth terminal.Wherein resistive element is coupled between this second pin and the 3rd pin, and 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 one first pin, one second pin that is used for transmitting data, one the 3rd pin that is used for transmitting data that is used to provide a charge power supply, one the 4th pin that is used as the 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 receiving this charge power supply by this first end points from this first pin of this universal serial bus connector.Decision circuitry is coupled to this specific connector and this charging control circuit.Decision circuitry comprises one first judging unit, be used in the voltage level that this power supply device is connected to this portable electronic devices, this first end points 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 the voltage level of drawing high this second end points 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 is judged the kind of this power supply device according to this first judged result at least.
The present invention also discloses a kind of method of 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, and 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.This 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 the voltage level of drawing high this second end points; When dragging down the voltage level of the 3rd end points, the voltage level that detects the 3rd end points is to produce one first judged result; And the kind of judging this power supply device according to this first judged result at least.
Description of drawings
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 judges the flow chart of an example operation of method of the kind of a power supply device for the present invention.
[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 imports power supply
The 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 supply Pin, and power-switching circuit 120 is coupled to power input 110, is used for converting input power supply Pin to a charge power supply Pcharge.Universal serial bus connector 130 comprises five pins 131～135 and a resistive element R, wherein first pin 131 is used to provide charge power supply Pcharge, second pin 132, the 3rd pin 133 are used for transmitting data, the 4th pin 134 is judged as identification, and the 5th pin 135 is coupled to an earth terminal.In other words, first pin 131 is used for transmitting the VBUS signal, and second pin 132 is used for transmitting the D+ signal, and the 3rd pin 133 is used for transmitting the D-signal, and the 4th pin 134 is used for transmitting the ID signal, and the 5th pin 135 is used for transmitting the GND signal.Because USB (universal serial bus) is well known to those skilled in the art, does not add to give unnecessary details at this.
Note that resistive element R is coupled between 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 a 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 USB transmission line, and it comprises a universal serial bus connector 150 and a connecting line 160.Can learn that by Fig. 1 the universal serial bus connector 150 of transmission line 140 also comprises five pins 151～155, correspond to five pins 131～135 of the universal serial bus connector 130 of power supply device 100 respectively.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 were designed to two independent accessory, then transmission line 140 can also be used as the usefulness of transfer of data, not only is confined to the usefulness of charging, to save cost and to expand its use.
Had power supply device miscellaneous at present on the market, 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 universal serial bus connector 130 shown in Figure 1, different is not connect any resistive element R (perhaps other elements) between second pin 232 and the 3rd pin 234.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, and this power supply device 200 may be linked to a main frame for general commercially available charger or by a transmission line.
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 universal serial bus connector 230 shown in Figure 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) with 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 the kind of power supply device 300 by this feature.
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 universal serial bus connector 130 shown in Figure 1, different is 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 (for example a mobile phone or a personal digital assistant etc.) thereof of judging 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, being connected in power supply device 100 with portable electronic devices 500 by transmission line shown in Figure 1 140 is that example describes, but this is not a 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 first end points 511 corresponds to first pin 131 of the universal serial bus connector 130 of power supply device 100, second end points 512 corresponds to 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 with reference to figure 5, charging control circuit 520 is coupled to specific connector 510, be used for receiving charge power supply Pcharge by first end points 511 from first pin 131 of universal serial bus connector 130, charging control circuit 520 utilizes charge power supply Pcharge to come portable electronic devices 500 is charged again 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, second judging unit 532, the 3rd judging unit 533 and the 4th judging unit 534.The 3rd judging unit 533 is used for when the voltage level that a power supply device is connected to the portable electronic devices 500 and first end points 511 is high logic level, and the voltage level of judging the 4th end points 514 (that is ID end points) is to produce one first judged result DR1; Second judging unit 532 is used for when drawing high the voltage level of second end points 512 (that is D+ end points), and the voltage level of judging the 3rd end points 513 (that is D-end points) is to produce one second judged result DR2; First judging unit 531 is used for when dragging down the voltage level of the 3rd end points 513, and the voltage level of judging 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 second judging unit 532 shows that the voltage level of the 3rd end points 513 is low logic level, judge whether portable electronic devices 500 is that a USB inking device is to produce one the 4th judged result DR4.At last, decision circuitry 530 can be judged the kind of this power supply device that is connected to portable electronic devices 500 according to first, second, third, fourth judged result DR1～DR4.
Please refer to Fig. 6, Fig. 6 judges the flow chart of an example operation of method of the kind of a power supply device for the present invention, it comprises following step (if note that and can obtain roughly the same result, then the following step and non-limiting will the execution according to order shown in Figure 6):
Step 602: beginning.
Step 604 a: power supply device is connected to portable electronic devices 500.
Step 606: the voltage level of first end points 511 is a high logic level.
Step 608: the voltage level of judging 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, execution in step 610; Otherwise, execution in 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 a 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 second end points 512.
Step 622: when drawing high the voltage level of second end points 512, the voltage level of judging 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, execution in step 630; Otherwise, execution in 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, the voltage level of judging 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, execution in step 634; Otherwise, execution in step 636.
Step 634: judge that this power supply device is power supply device 400 charger of China's Mainland charger specification (that is meet).
Step 636: judge that this power supply device is a 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, execution in step 642; Otherwise, execution in step 644.
Step 642: judge that this power supply device is a main frame.
Step 644: judge that this power supply device is a charger (that is general commercially available charger) of non-computer main frame.
Next, each step shown in Figure 6 of arranging in pairs or groups, each element and Fig. 1～power supply device 100～400 shown in Figure 4 shown in Figure 5 are illustrated kind how to judge this power supply device.At first, a power supply device is connected to portable electronic devices 500 (step 604), at this moment, the voltage level of first end points 511 (that is VBUS end points) is a high logic level (step 606).Then, the 3rd judging unit 533 can be judged 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 was low logic level, decision circuitry 530 can judge that this power supply device is a power supply device 300 (step 610) shown in Figure 3; And when the voltage level of the 4th end points 514 was high logic level, second judging unit 532 can carry out the detection (step 620～622) of the second judged result DR2.
Next, draw high the voltage level (step 620) of second end points 512 earlier by resistive element R1, and 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 drags down the voltage level (step 630) of the 3rd end points 513 by resistive element R2 earlier, and then utilize 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 was high logic level, decision circuitry 530 can judge that this power supply device is a power supply device 400; And when the voltage level of the 3rd end points 513 was low logic level, decision circuitry 530 can judge that this power supply device is a power supply device 100.
On the other hand, when the second judged result DR2 in the step 622 showed that the voltage level of the 3rd end points 513 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 when being a USB inking device, decision circuitry 530 can judge that these power supply devices be a main frame (step 642); If portable electronic devices 500 is not when being a USB inking device, decision circuitry 530 can judge that this power supply device is a charger (that is general commercially available charger) (step 644) of non-computer main frame.
In brief, can be by the disclosed judgment mechanism of the disclosed portable electronic devices of Fig. 5 500 collocation Fig. 6, differentiate why person's (for example power supply device 100～400 of Fig. 1～Fig. 4) of the power supply device that is connected with portable electronic devices 500.
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 only is used for technical characterictic of the present invention is described, is not to be 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 the power supply device kind and correlated 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, then transmission line 140 can also be used as the usefulness of transfer of data, to save cost and to expand its use.In addition, by increasing decision circuitry 530 (comprising first judging unit 531, 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 person's (for example power supply device 100～400 of Fig. 1～Fig. 4) why.Then, can come to do the expansion of other application according to design requirement, yet range of application is not a restrictive condition of the present invention at different types of power supply device.In addition, also can utilize judgment mechanism disclosed in this invention to come power supply device is carried out the quality keyholed back plate, be subjected to the damage of the bad charger of QC to avoid portable electronic devices.
The above only is the preferred embodiments of the present invention, and all equalizations of doing according to claims of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (21)
1. power supply device includes:
One power input is used for receiving an input power supply;
One power-switching circuit is coupled to this power input, is used for this input power source conversion is become a charge power supply; And
One universal serial bus connector includes:
One first pin is used to provide this charge power supply;
One second pin is used for transmitting data;
One the 3rd pin is used for transmitting data;
One the 4th pin is used as identification and judges;
One the 5th pin is coupled to an earth terminal; And
One resistive element is coupled between this second pin and the 3rd pin, and wherein this resistive element is more than or equal to 150K ohm.
2. 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 one first pin, one second pin that is used for transmitting data, one the 3rd pin that is used for transmitting data that is used to provide a charge power supply, one the 4th pin that is used as the 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 receiving this charge power supply by this first end points from this first pin of this universal serial bus connector; And
One decision circuitry is coupled to this specific connector and this charging control circuit, and this decision circuitry includes:
One first judging unit, being used in the voltage level that this power supply device is connected to this portable electronic devices, this first end points is when the voltage level of the 3rd end points was high logic level after the voltage level of high logic level, the 4th end points was high logic level and the voltage level of drawing high this second end points, and 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.
3. portable electronic devices as claimed in claim 2, 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.
4. portable electronic devices as claimed in claim 3, wherein when the voltage level of the 3rd judgment result displays the 3rd end points of this first judging unit was low logic level, this decision circuitry judged that this power supply device is one first charger; And when the voltage level of the 3rd judgment result displays the 3rd end points of this first judging unit was high logic level, this decision circuitry judged that this power supply device is one second charger that meets China's Mainland charger specification.
5. portable electronic devices as claimed in claim 3, wherein this decision circuitry also includes:
One second judging unit, being used in the voltage level that this power supply device is connected to this portable electronic devices, this first end points is the voltage level of high logic level and the 4th end points when being high logic level, and the voltage level of drawing high the voltage level of this second end points and detecting the 3rd end points is to produce one second judged result;
Wherein, this decision circuitry is judged the kind of this power supply device according to the 3rd, second judged result.
6. portable electronic devices as claimed in claim 5, wherein this decision circuitry also includes:
One the 3rd judging unit is used for when the voltage level that this power supply device is connected to this portable electronic devices and this first end points is high logic level, and the voltage level that detects the 4th end points is 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.
7. portable electronic devices as claimed in claim 6, wherein when the voltage level of this first judgment result displays the 4th end points of the 3rd judging unit was low logic level, this decision circuitry can judge that this power supply device is a particular charger; And when the voltage level of this first judgment result displays the 4th end points of the 3rd judging unit was high logic level, this second judging unit carried out the detection of this second judged result.
8. portable electronic devices as claimed in claim 3, wherein this decision circuitry also includes:
One second judging unit, being used in the voltage level that this power supply device is connected to this portable electronic devices, this first end points is that the voltage level of high logic level and the 4th end points is when being high logic level, the voltage level of drawing high the voltage level of this second end points 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 was high logic level, this first judging unit carried 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 3rd, second, the 4th judged result.
9. portable electronic devices as claimed in claim 8, wherein when this portable electronic devices of the 4th judgment result displays of the 4th judging unit was this universal serial bus configuration device, this decision circuitry judged that this power supply device is a main frame; And when this portable electronic devices of the 4th judgment result displays be not during for this universal serial bus configuration device, this decision circuitry judges that this power supply device is a charger of non-computer main frame.
10. portable electronic devices as claimed in claim 8, wherein this decision circuitry also includes:
One the 3rd judging unit is used for when the voltage level that this power supply device is connected to this portable electronic devices and this first end points is high logic level, and the voltage level that detects the 4th end points is 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.
11. portable electronic devices as claimed in claim 10, wherein when the voltage level of this first judgment result displays the 4th end points of the 3rd judging unit was low logic level, this decision circuitry judged that this power supply device is a particular charger; And when the voltage level of this first judgment result displays the 4th end points of the 3rd judging unit was high logic level, this second judging unit carried out the detection of this second judged result.
12. method of judging the kind of a power supply device, 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, and this method includes:
At the voltage level that this power supply device is connected to this portable electronic devices, this first end points is when the voltage level of the 3rd end points was high logic level after the voltage level of high logic level, the 4th end points was high logic level and the voltage level of drawing high this second end points, drags down the voltage level of the 3rd end points;
When dragging down the voltage level of the 3rd end points, the voltage level that detects the 3rd end points is to produce one the 3rd judged result; And
Judge the kind of this power supply device according to the 3rd judged result at least.
13. method as claimed in claim 12, 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.
14. method as claimed in claim 13 wherein judges 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 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 one second charger that meets a China's Mainland charger specification.
15. method as claimed in claim 13, 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 when being high logic level, draws high the voltage level of this second end points;
When drawing high the voltage level of this second end points, the voltage level that detects the 3rd end points is to produce one second judged result; And
Foundation the 3rd judged result at least judges that the step of the kind of this power supply device includes:
Judge the kind of this power supply device according to the 3rd, second judged result.
16. method as claimed in claim 15, 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 was high logic level, the voltage level that detects the 4th end points was to produce one first judged result; And
Foundation the 3rd judged result at least judges that the step of the kind of this power supply device includes:
Judge the kind of this power supply device according to this first, second, third judged result.
17. method as claimed in claim 16, 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 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.
18. method as claimed in claim 13, 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 when being high logic level, draws high the voltage level of this second end points;
When drawing high the voltage level of this second end points, the voltage level that detects the 3rd end points is 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 the 3rd judged result at least judges that the step of the kind of this power supply device includes:
Judge the kind of this power supply device according to the 3rd, second, the 4th judged result.
19. method as claimed in claim 18 wherein judges that according to the 3rd, second, the 4th judged result the step of the kind of this power supply device includes:
When this portable electronic devices of the 4th judgment result displays is this universal serial bus configuration device, judge that this power supply device is a main frame; And
When this portable electronic devices of the 4th judgment result displays is not during for this universal serial bus configuration device, judge that this power supply device is a charger of non-computer main frame.
20. method as claimed in claim 18, 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 was high logic level, the voltage level that detects the 4th end points was to produce one first judged result; And
Foundation the 3rd judged result at least judges that the step of the kind of this power supply device includes:
Judge the kind of this power supply device according to this first, second, third, fourth judged result.
21. method as claimed in claim 20 wherein judges 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 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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| 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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| CN101989751A true CN101989751A (en) | 2011-03-23 |
| CN101989751B CN101989751B (en) | 2014-01-15 |
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