CN105548774A - Intelligent detection device of quick charger and testing method thereof - Google Patents
Intelligent detection device of quick charger and testing method thereof Download PDFInfo
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- CN105548774A CN105548774A CN201610051072.8A CN201610051072A CN105548774A CN 105548774 A CN105548774 A CN 105548774A CN 201610051072 A CN201610051072 A CN 201610051072A CN 105548774 A CN105548774 A CN 105548774A
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- charger
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The present invention provides an intelligent detection device of a quick charger. The intelligent detection device of a quick charger comprises: one of a QC2.0 charger and a PE+2.0 charger; a USB male, wherein one end of the USB male is connected with the QC2.0 charger or the PE+2.0 charger, and the other end of the USB male includes VBUS end, a GND end, a D+ end and a D- end; a USB female, wherein the one end of the USB female is connected with the VBUS end and the GND end, and the other end of the USB female is connected with a load; a micro control unit, wherein the input end of the micro control unit is connected with the VBUS end through a voltage sampling circuit and through an over-current and over voltage protection circuit and a voltage regulator circuit, and the output end of the micro control unit is connected with the D+ end and the D- end through a QC2.0 control circuit and is connected with a protocol load through a PE+2.0 protocol control circuit, and the protocol load is connected with the VBUS end and the GND end; a voltage display circuit, wherein the voltage display circuit is connected with the output of the micro control unit; and a key control circuit, wherein the key control circuit is connected with the input end of the micro control unit.
Description
Technical field
The present invention relates to quick charger field, particularly relate to a kind of intelligent detection equipment and method of testing thereof of quick charger.
Background technology
Flying power is the large bottleneck of the products such as smart mobile phone in technical development, except expanding except battery capacity, accelerates a kind of mode of charging rate also Cheng Liao manufacturers " curve is saved the nation ".Although that supports rapid charge at present only has high pass, Samsung and Intel etc. very few, the QuickCharge rapid nitriding of manufacturer's high pass has developed into the third generation at present, by adding extra power management integrated circuit in the middle of valiant Godson sheet, this technology significantly can accelerate charging rate.
QC (QuickCharge) 1.0 issued in 2012, used 5V/2A charger, and charging rate is faster than traditional 5V/1A charger maximum 40%, was equivalent to the maximum charge power of 10W.The mobile phone possessing this technology comprises Samsung GalaxyS3, LGNexus4, LGOptimusG and Sony XperiaT etc.Second generation QC2.0 is along with valiant imperial 800 chips are together issued at the end of 2013, and its charger has been upgraded to support 5/9/12V voltage, and it is adaptive for comparing the charging current that traditional 5V charger speed can promote maximum 75%, QC2.0 charger; The technology of filling soon of current main flow also comprises PE+2.0 quick charger, and its magnitude of voltage exported is that 3.6V, 3.8V, 4.0V, 4.2V, 4.4V, 4.6V, 4.8V, 5.0V, 7V, 9V, 12V self-adaptation is adjustable; The benefit done like this is that when ensureing charging, voltage floats, and not easily generates heat.
But, along with Samsung, in succession there is security incident of charging in world-class mobile terminal production firm of many families such as apple, user is more and more higher for the requirement of charging safety, charger is as the most frequently used annex of mobile terminal, must be reliable and secure, especially for novel quick charger, it is the technology of relative new, for QC2.0 charger, the test board of the performance index monitoring of PE+2.0 quick charger is also very few, manufacturer like this for mobile phone even load equipment cannot carry out aging to its charge condition, whether the voltage that cannot monitor quick charger output is in real time normal, for substandard product, easily certain threat is formed to safety during charging.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of the present invention is to provide that a kind of structure is simple, low-profile, charger output voltage values can be monitored in real time, and making intelligent detection equipment and the method for testing thereof of the quick charger of mistake instruction.
For achieving the above object, the present invention is achieved through the following technical solutions:
An intelligent detection equipment for quick charger, comprising:
One 1 in QC2.0 charger or PE+2.0 charger;
USBType-A male 3, its one end connects the one in described QC2.0 charger or PE+2.0 charger, and the other end comprises VBUS end, and GND holds, and D+ holds, and D-holds;
USBType-A female seat 4, its one end is held with described VBUS respectively, GND holds and is connected, and the other end connects load 2;
Micro-control unit, its input end is connected to described VBUS respectively by voltage sampling circuit and holds, is connected to described VBUS holds by overcurrent-overvoltage protecting circuit and mu balanced circuit, its output terminal connects described D+ respectively by QC2.0 control circuit and holds, D-holds, its output terminal is connected to protocol load by PE+2.0 protocol control circuitry simultaneously, and described protocol load is connected respectively to described VBUS end, GND end;
Voltage display circuit, it connects the output terminal of described micro-control unit;
Key control circuit, it connects the input end of described micro-control unit.
Preferably, the intelligent detection equipment of described quick charger, wherein, the 3.6V-12V self-adaptation of the output voltage of described QC2.0 charger to be step-length be 0.2V is adjustable, and the output voltage of described PE+2.0 charger is that 3.6V, 3.8V, 4.0V, 4.2V, 4.4V, 4.6V, 4.8V, 5.0V, 7V, 9V, 12V self-adaptation is adjustable.
Preferably, the intelligent detection equipment of described quick charger, wherein, intelligent detection equipment also comprises the left button 6 and right button 7 that are positioned at its surface, two buttons are electrically connected with the input end of described key control circuit respectively, for switching described QC2.0 agreement, PE+2.0 agreement, and for regulating the output voltage of described QC2.0 charger, PE+2.0 charger, wherein left button is voltage grading key, and right button is that voltage increases progressively key.
Preferably, the intelligent detection equipment of described quick charger, wherein, described micro-control unit is MC9S08PT16VTG.
Preferably, the intelligent detection equipment of described quick charger, wherein, described voltage display circuit comprising three Digital sum pipes 5 for showing voltage, exporting whether normal LED light 8 for showing voltage.
Preferably, the intelligent detection equipment of described quick charger, wherein, the voltage measurement scope 3.5V-15V of described intelligent detection equipment, voltage measurement error is ± 0.05V within the scope of.
Preferably, the intelligent detection equipment of described quick charger, wherein, described intelligent detection equipment part is of a size of 4.2cmx3.5cm.
Preferably, the method for testing of the intelligent detection equipment of described quick charger, comprising:
(1) USB male joint of described intelligent detection equipment is inserted a kind of output port in QC2.0 charger, PE+2.0 charger, charger powers on, and the voltage utilizing charger to export is powered to oneself by intelligent detection equipment, resets and starts, system initialization, self-inspection;
(2) one in the QC2.0 agreement corresponding with above-mentioned charger type, PE+2.0 agreement is set by left button and right button, press right button, described three Digital sum pipes show the flag information of current selected agreement in a flashing manner, select by right button that test board is alternative fills agreement soon in turn, determine by left button, when in 3 seconds without any button operation, selected fill agreement soon by automatically confirming;
(3) external loading directly accesses the USB female seat of described Intelligent testing test run by supporting joint, and the output voltage of charger is directly connected to load end; When selection QC2.0 agreement, start output voltage is 5V; When selection PE+2.0 agreement, start output voltage is 7V; Described VBUS end is measured, and the voltage display of three Digital sum pipes refreshes, display actual measurement magnitude of voltage, and whether LED light display voltage exports normal;
(4) key scan, when not scanning button, then continues VBUS end and measures; When scanning button, judge whether current be QC2.0 agreement, is QC2.0 agreement, then described micro-control unit judges whether voltage increases progressively described key control circuit, when voltage increases progressively, then the voltage of described QC2.0 charger increases progressively, otherwise the voltage grading of QC2.0 charger;
Not QC2.0 agreement, then judge whether current be PE+2.0 agreement, is PE+2.0 agreement, then described micro-control unit judges whether voltage increases progressively described key control circuit, when voltage increases progressively, then the voltage of described PE+2.0 charger increases progressively, otherwise the voltage grading of PE+2.0 charger;
(5) then continue VBUS end to measure; When switching between different voltage gears, when LED light shiny red, then represent and detect that the output voltage of tested charger is abnormal, be judged to fault, when LED light bright green, be judged to normal.
Beneficial effect of the present invention:
(1) mistake instruction is done for each voltage node;
(2) voltage measurement error ± 0.05V, error is less;
(3) provide load to access USB female seat, support the load capacity of the tested charger of test;
(4) charger is directly used to export as power itself, without the need to external power source;
(5) simple button operation completes selected QC2.0 agreement, PE+2.0 agreement, and under various charger protocol, charger exports the test of each shelves voltage, compatible good, and protocol switching freely;
(6) physical dimension is small and exquisite, is designed to 4.2cmx3.5cm, and be easy to carry about with one use.
Accompanying drawing explanation
The internal circuit configuration schematic diagram that Fig. 1 is the intelligent detection equipment of the quick charger described in one embodiment of the invention;
Fig. 2 is the structural representation of the intelligent detection equipment of the quick charger described in one embodiment of the invention;
Fig. 3 is the schematic flow sheet of the aging method of the intelligent detection equipment of the quick charger described in one embodiment of the invention.
Wherein, the one in 1-QC2.0 charger or PE+2.0 charger, 2-load, 3-USB male, 4-USB female seat, 5-LED pilot lamp, 6-left button, 7-right button.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to instructions word to make those skilled in the art.
An intelligent detection equipment for quick charger, refers to accompanying drawing 1-2, comprising:
One 1 in QC2.0 charger or PE+2.0 charger;
USB male joint 3, its one end connects the one in described QC2.0 charger or PE+2.0 charger, and the other end comprises VBUS end, and GND holds, and D+ holds, and D-holds;
USB female seat 4, its one end is held with described VBUS respectively, GND holds and is connected, and the other end connects load 2;
Micro-control unit, its input end is connected to described VBUS respectively by voltage sampling circuit and holds, is connected to described VBUS holds by overcurrent-overvoltage protecting circuit and mu balanced circuit, its output terminal connects described D+ respectively by QC2.0 control circuit and holds, D-holds, its output terminal is connected to protocol load by PE+2.0 protocol control circuitry simultaneously, and described protocol load is connected respectively to described VBUS end, GND end;
Voltage display circuit, it connects the output terminal of described micro-control unit;
Key control circuit, it connects the input end of described micro-control unit.
Further, the 3.6V-12V self-adaptation of the output voltage of described QC2.0 charger to be step-length be 0.2V is adjustable, and the output voltage of described PE+2.0 charger is that 3.6V, 3.8V, 4.0V, 4.2V, 4.4V, 4.6V, 4.8V, 5.0V, 7V, 9V, 12V self-adaptation is adjustable.
Further, intelligent detection equipment also comprises the left button 6 and right button 7 that are positioned at its surface, two buttons are electrically connected with the input end of described key control circuit respectively, for switching described QC2.0 agreement, PE+2.0 agreement, and for regulating the output voltage of described QC2.0 charger, PE+2.0 charger, wherein left button is voltage grading key, and right button is that voltage increases progressively key.
Further, described micro-control unit is MC9S08PT16VTG.
Further, described voltage display circuit comprising three Digital sum pipes 5 for showing voltage, exporting whether normal LED light 8 for showing voltage.
Further, the voltage measurement scope 3.5V-15V of described intelligent detection equipment, voltage measurement error is ± 0.05V within the scope of.
Further, described intelligent detection equipment part is of a size of 4.2cmx3.5cm, and this size is the part of removing USB male joint.
The method of testing of the intelligent detection equipment of described quick charger, refers to accompanying drawing 3, comprising:
(1) USB male joint of described intelligent detection equipment is inserted a kind of output port in QC2.0 charger, PE+2.0 charger, charger powers on, and the voltage utilizing charger to export is powered to oneself by intelligent detection equipment, resets and starts, system initialization, self-inspection;
(2) one in the QC2.0 agreement corresponding with above-mentioned charger type, PE+2.0 agreement is set by left button and right button, press right button, described three Digital sum pipes show the flag information of current selected agreement in a flashing manner, select by right button that test board is alternative fills agreement soon in turn, determine by left button, when in 3 seconds without any button operation, selected fill agreement soon by automatically confirming;
(3) external loading directly accesses the USB female seat of described Intelligent testing test run by supporting joint, and the output voltage of charger is directly connected to load end; When selection QC2.0 agreement, start output voltage is 5V; When selection PE+2.0 agreement, start output voltage is 7V; Described VBUS end is measured, and the voltage display of three Digital sum pipes refreshes, display actual measurement magnitude of voltage, and whether LED light display voltage exports normal;
(4) key scan, when not scanning button, then continues VBUS end and measures; When scanning button, judge whether current be QC2.0 agreement, is QC2.0 agreement, then described micro-control unit judges whether voltage increases progressively described key control circuit, when voltage increases progressively, then the voltage of described QC2.0 charger increases progressively, otherwise the voltage grading of QC2.0 charger;
Not QC2.0 agreement, then judge whether current be PE+2.0 agreement, is PE+2.0 agreement, then described micro-control unit judges whether voltage increases progressively described key control circuit, when voltage increases progressively, then the voltage of described PE+2.0 charger increases progressively, otherwise the voltage grading of PE+2.0 charger;
(5) then continue VBUS end to measure; When switching between different voltage gears, when LED light shiny red, then represent and detect that the output voltage of tested charger is abnormal, be judged to fault, when LED light bright green, be judged to normal.
Although embodiment of the present invention are open as above, but it is not restricted to listed in instructions and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (8)
1. an intelligent detection equipment for quick charger, is characterized in that, comprising:
One (1) in QC2.0 charger or PE+2.0 charger;
USB male joint (3), its one end connects the one in described QC2.0 charger or PE+2.0 charger, and the other end comprises VBUS end, and GND holds, and D+ holds, and D-holds;
USB female seat (4), its one end is held with described VBUS respectively, GND holds and is connected, and the other end connects load (2);
Micro-control unit, its input end is connected to described VBUS respectively by voltage sampling circuit and holds, is connected to described VBUS holds by overcurrent-overvoltage protecting circuit and mu balanced circuit, its output terminal connects described D+ respectively by QC2.0 control circuit and holds, D-holds, its output terminal is connected to protocol load by PE+2.0 protocol control circuitry simultaneously, and described protocol load is connected respectively to described VBUS end, GND end;
Voltage display circuit, it connects the output terminal of described micro-control unit;
Key control circuit, it connects the input end of described micro-control unit.
2. the intelligent detection equipment of quick charger as claimed in claim 1, it is characterized in that, the 3.6V-12V self-adaptation of the output voltage of described QC2.0 charger to be step-length be 0.2V is adjustable, and the output voltage of described PE+2.0 charger is that 3.6V, 3.8V, 4.0V, 4.2V, 4.4V, 4.6V, 4.8V, 5.0V, 7V, 9V, 12V self-adaptation is adjustable.
3. the intelligent detection equipment of quick charger as claimed in claim 2, it is characterized in that, intelligent detection equipment also comprises the left button (6) and right button (7) that are positioned at its surface, two buttons are electrically connected with the input end of described key control circuit respectively, for switching described QC2.0 agreement, PE+2.0 agreement, and for regulating the output voltage of described QC2.0 charger, PE+2.0 charger, wherein left button is voltage grading key, right button is that voltage increases progressively key.
4. the intelligent detection equipment of quick charger as claimed in claim 3, it is characterized in that, described micro-control unit is MC9S08PT16VTG.
5. the intelligent detection equipment of quick charger as claimed in claim 4, is characterized in that, described voltage display circuit comprising three Digital sum pipes (5) for showing voltage, exporting whether normal LED light (8) for showing voltage.
6. the intelligent detection equipment of quick charger as claimed in claim 5, is characterized in that, the voltage measurement scope 3.5V-15V of described intelligent detection equipment, voltage measurement error is ± 0.05V within the scope of.
7. the intelligent detection equipment of quick charger as claimed in claim 6, it is characterized in that, described intelligent detection equipment part is of a size of 4.2cmx3.5cm.
8. the method for testing of the intelligent detection equipment of quick charger as claimed in claim 6, comprising:
(1) USB male joint of described intelligent detection equipment is inserted a kind of output port in QC2.0 charger, PE+2.0 charger, charger powers on, and the voltage utilizing charger to export is powered to oneself by intelligent detection equipment, resets and starts, system initialization, self-inspection;
(2) one in the QC2.0 agreement corresponding with above-mentioned charger type, PE+2.0 agreement is set by left button and right button, press right button, described three Digital sum pipes show the flag information of current selected agreement in a flashing manner, select by right button that test board is alternative fills agreement soon in turn, determine by left button, when in 3 seconds without any button operation, selected fill agreement soon by automatically confirming;
(3) external loading directly accesses the USB female seat of described Intelligent testing test run by supporting joint, and the output voltage of charger is directly connected to load end; When selection QC2.0 agreement, start output voltage is 5V; When selection PE+2.0 agreement, start output voltage is 7V; Described VBUS end is measured, and the voltage display of three Digital sum pipes refreshes, display actual measurement magnitude of voltage, and whether LED light display voltage exports normal;
(4) key scan, when not scanning button, then continues VBUS end and measures; When scanning button, judge whether current be QC2.0 agreement, is QC2.0 agreement, then described micro-control unit judges whether voltage increases progressively described key control circuit, when voltage increases progressively, then the voltage of described QC2.0 charger increases progressively, otherwise the voltage grading of QC2.0 charger;
Not QC2.0 agreement, then judge whether current be PE+2.0 agreement, is PE+2.0 agreement, then described micro-control unit judges whether voltage increases progressively described key control circuit, when voltage increases progressively, then the voltage of described PE+2.0 charger increases progressively, otherwise the voltage grading of PE+2.0 charger;
(5) then continue VBUS end to measure; When switching between different voltage gears, when LED light shiny red, then represent and detect that the output voltage of tested charger is abnormal, be judged to fault, when LED light bright green, be judged to normal.
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| CN201610051072.8A CN105548774A (en) | 2016-01-26 | 2016-01-26 | Intelligent detection device of quick charger and testing method thereof |
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| CN201610051072.8A CN105548774A (en) | 2016-01-26 | 2016-01-26 | Intelligent detection device of quick charger and testing method thereof |
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