CN104267290A - Calibration and verification method for electric power management IC - Google Patents
Calibration and verification method for electric power management IC Download PDFInfo
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- CN104267290A CN104267290A CN201410527494.9A CN201410527494A CN104267290A CN 104267290 A CN104267290 A CN 104267290A CN 201410527494 A CN201410527494 A CN 201410527494A CN 104267290 A CN104267290 A CN 104267290A
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Abstract
The invention relates to a calibration and verification method for an electric power management IC. The method comprises the steps that voltage is loaded through powering on; pairing of version numbers is carried out, and ROM files are burnt; HDQ is carried out, calibration is carried out, and verification is carried out; data are uploaded to a network server or a local database; when data are uploaded, an upper computer starts a dual-thread mode, data processing, communication and transmission are carried out by adopting a newly-generated thread, data storage on a main thread is processed and updated through an asynchronous call, and the interface on the main thread displays updated content. According to the calibration and verification method for the electric power management IC, feedback signals can be detected intelligently, single communication can be completed and quit at the highest speed, and calibration and verification of the electric power management IC can be completed efficiently; the testing efficiency of the voltage and current precision standard is improved; local serial number information and server serial number information are deployed flexibly; the bias value of PCB products is screened automatically and intelligently, and the low efficiency of the self-calibration of the electric power management IC is completely eradicated; accurate voltage and current precision values are screened and obtained intelligently, and the whole calibration and verification process is more intelligent.
Description
Technical field
The present invention relates to the calibration method of calibration of a kind of managing electric quantity IC, specifically a kind of managing electric quantity IC calibrates method of calibration.
Background technology
In the power supply industry of current mobile electron, managing electric quantity IC applies more and more extensive, and the accuracy requirement of high-end product to managing electric quantity IC is also more and more higher.Due to the introducing of the managing electric quantity IC of BQ27545-A4 framework, and this kind of IC relates to the new communication technology, refer to the managing electric quantity product of this kind of IC with the test of current calibration verification integration apparatus, its test speed is slow, inefficiency, calibration burning verifies whole process height consuming time.The Configuration Online of current integration apparatus, the production delivery of apple products cannot be met, and it is long again to make the current calibration verification integration apparatus cycle, the volume production requirement of Present day mobile electronic product cannot be tackled in time, its cost of manufacture is high simultaneously, controlling cost squeeze now, under getting the policy of maximum profit, real genus is inadvisable.Therefore on former calibration verification integration apparatus basis, carry out speed-raising invention to change, while ensureing managing electric quantity product quality, be only wise move.
The classic method that the managing electric quantity product of the managing electric quantity IC of current industry production BQ27545-A4 framework adopts is based on TI(TIX) software and hardware (EV2300) that provides, by manual welding fixture, the mode single channel of pure manual contact test point realizes the product of BQ27545-A4 framework (as apple IPHONE6, the products such as IPADMINI, IPADAIR) calibration burning verification comparison.The method is limited by TI company, and limitation is large, poor expandability, inefficiency, calibration burning verifies whole process and completes greatly consuming time, and this input cost is high simultaneously, integrated testability poor stability, operating efficiency is low simultaneously, and the abnormal error rate of programming is high, and Quality Safety coefficient is low.Realize verifying to the calibration burning of the managing electric quantity IC of BQ27545-A4 framework the inexorable trend that speed-raising is industry.
Summary of the invention
For above-mentioned prior art, the technical problem to be solved in the present invention is: provide a kind of managing electric quantity IC to calibrate method of calibration, effectively improves the speed of managing electric quantity IC calibration verification, saves the time of managing electric quantity IC calibration verification.
In order to solve the problem, managing electric quantity IC of the present invention calibrates method of calibration, and the method comprises the steps:
S1. electro activation is gone up, on-load voltage;
S2. version number's pairing, and burning ROM file;
S3. HDQ pattern is entered;
S4. calibration mode is entered, calibration correlation parameter;
S5. enter checking mode, carry out the test of relevant item;
S6. after having tested, to the webserver or local data base uploading data;
Wherein, in step S6, during uploading data, host computer opens two thread mode, adopts newborn thread to carry out handle data communication transmission, and the data that asynchronous call process upgrades on main thread store, the interface display update content on main thread; And said process occurs in the communication process between upper and lower computer.
Preferably, described step S4 comprises:
S401. calibrate constant current to mend
repaybias;
S402. pcb board bias is calibrated;
S403. loading current;
S404. calibration current;
S405. calibration voltage;
S406. verify;
S407. writing sequence number is distributed;
Wherein, in step S402, host computer simplifies the calibration mode of pcb board bias, adopts the pattern of automatic intelligent to carry out screening the mean value calculating pcb board bias, with in the pattern of fixing mean value write managing electric quantity IC.
Preferably, described step S402 comprises:
S402a. according to the pcb board bias data of cycle regular hour timing acquiring part managing electric quantity product;
S402b. through integral operation, the accurate average bias value of the pcb board bias that can reflect under managing electric quantity product present case is calculated;
S402c. by Single Chip Microcomputer (SCM) program communication module write managing electric quantity IC.
Preferably, described step S5 comprises:
S501. HDQ voltage is tested;
S502. test from power consumption;
S503. test products manufacturing information;
S504. ROM internal data is tested;
S505. temperature test;
S506. voltage accuracy test;
S507. discharge current accuracy test;
S508. charging current accuracy test;
Wherein, when carrying out the electric current and voltage accuracy test of managing electric quantity IC, by the reading model of host computer amendment electric current and voltage precision; First take circulation fixed number of times to read product electric current and voltage precision, the data then collected circulation reading are weighted value that algorithm that is average and arithmetic mean calculates electric current and voltage precision as the actual value of data receiver mouth feeding back to closed-loop system.
Preferably, in described checking procedure, host computer adopts the mode of bidirectional opening image data to obtain manufacturing information content; In real-time update server while managing electric quantity product ID information, a sequence number information is backed up in local file, when carrying out sequence number information and gather in managing electric quantity product burning process, Sampling network signal lag is long, more than a specified time, then automatically open local data drainage pattern, sequence number information is obtained from this locality
Preferably, described slave computer modular program adopts parallel communication fashion, adopts double-serial port two-way communication mode, and when verifying reading product electric current and voltage precision reference, multi-channel parallel reads product electric current and voltage precision reference.
Preferably, the benchmark only carrying out electric current and voltage precision in described checking procedure reads, and is then stored in local data base.If respective channel electric current and voltage reference data is in appointment specification limit, then using current up-to-date electric current and voltage reference data as the standard value of calibrating next time, otherwise judge that available nearest electric current and voltage reference data is as the standard value of calibrating next time using current channel.
Preferably, described upper and lower computer communication adopts circulation to send instruction, once host computer receives the signal that slave computer feeds back, then intelligence jumps out circulation.
Preferably, the baud rate of described serial communication is at least 57600B, and by the next control software design of amendment, uses the drop-down routine nesting level simplified.
Compared with prior art, tool of the present invention has the following advantages:
One, upper and lower computer communication adopts circulation to send search communication, can Intelligent Measurement feedback signal, can complete and exits single communication by prestissimo, efficiently complete the calibration verification of managing electric quantity IC.
Two, slave computer modular program adopts parallel communication fashion, adopts double-serial port two-way communication mode, and expansion novel communication circuit, improves communication serial port baud rate, improve the testing efficiency of electric current and voltage precision reference.
When three, adopting the mode of bidirectional opening image data to obtain manufacturing information sequence number content, allotment local sequence number information and server sequence number information flexibly, dirigibility is high.
Four, automated intelligent screening product P CB plate bias (BoardOffset), calculates average bias value accurately according to integral algorithm, enters in product with the mode programming of fixed value, stop the inefficiencies of the managing electric quantity IC self-aligning of BQ27545-A4 framework.
Five, intelligent decision electric current and voltage precision reference test situation, automatic screening obtains electric current and voltage accuracy value accurately, filter bad electric current and voltage accuracy value, bad passage again reads and distributes electric current and voltage reference precision value accurately, makes whole calibration checking procedure more intelligent.
Embodiment
In order to allow those skilled in the art understand technical scheme of the present invention better, in conjunction with embodiment below, the present invention is further elaborated.
The invention provides a kind of managing electric quantity IC and calibrate method of calibration, the method comprises the steps:
S1. electro activation is gone up, on-load voltage;
S2. version number's pairing, and burning ROM file;
Classification process is carried out to the managing electric quantity IC being assigned different version numbers, the corresponding no handling procedure of different version numbers, and the corresponding ROM file of burning.
S3. HDQ pattern is entered;
Transit action is carried out to the managing electric quantity IC of BQ27545-A4 framework, proceeds to HDQ pattern.HDQ refers to single-wire communication protocol, is applied to the detection module of intelligent battery.Processor and equipment are coupled together as bridge by HDQ interface, effectively save hard wires.
S4. calibration mode is entered, calibration correlation parameter;
Wherein, specifically comprise the steps:
S401. calibrate constant current and compensate bias;
S402. pcb board bias is calibrated;
S403. loading current;
S404. calibration current;
S405. calibration voltage;
S406. verify;
S407. writing sequence number is distributed;
Wherein, in step S402, host computer simplifies the calibration mode of pcb board bias, adopts the pattern of automatic intelligent to carry out screening the mean value calculating pcb board bias, with in the pattern of fixing mean value write managing electric quantity IC.
Because product type is inconsistent, the trend distribution of the pcb board bias of its correspondence is inconsistent, and this step specifically comprises:
S402a. according to the pcb board bias data of cycle regular hour timing acquiring part managing electric quantity product;
S402b. through integral operation, the accurate average bias value of the pcb board bias that can reflect under managing electric quantity product present case is calculated;
S402c. by Single Chip Microcomputer (SCM) program communication module write managing electric quantity IC.
This mode can avoid the communication protocol self provided of the managing electric quantity IC of the BQ27545-A4 framework according to TI and the inefficiencies of the pcb board bias calibration correction launched.
S5. enter checking mode, carry out the test of relevant item;
Wherein, specifically comprise the steps:
S501. HDQ voltage is tested;
S502. test from power consumption;
S503. test products manufacturing information;
S504. ROM internal data is tested;
S505. temperature test;
S506. voltage accuracy test;
S507. discharge current accuracy test;
S508. charging current accuracy test;
Wherein, when carrying out the electric current and voltage accuracy test of managing electric quantity IC, by the reading model of host computer amendment electric current and voltage precision; First circulation fixed number of times is taked to read product electric current and voltage precision, then the data collected circulation reading are weighted value that algorithm that is average and arithmetic mean calculates electric current and voltage precision as the actual value of data receiver mouth feeding back to closed-loop system, to replace interim random acquisition electric current and voltage accuracy value as the actual value mode of data receiver mouth feeding back to closed-loop system.
Because IC characteristic exists the hopping behavior of electric current and voltage accuracy value, during each image data, by the electric current and voltage precision adopting circulation to read this type of managing electric quantity product for 5 times, and the value that 5 times are tested is done time weighted mean and arithmetic mean, the value allowing it draw is as the actual value of current voltage current precision value, be transferred in the data sink of closed-loop system by internal memory, while ensureing the electric current and voltage precision accuracy of managing electric quantity product, also test speed is improved, the repetition measurement time delay that reduction equipment causes because single-unit managing electric quantity product electric current and voltage precision is bad.
In checking procedure, host computer adopts the mode of bidirectional opening image data to obtain manufacturing information content; In real-time update server while managing electric quantity product ID information, a sequence number information is backed up in local file, when carrying out sequence number information and gather in managing electric quantity product burning process, Sampling network signal lag is long, more than a specified time, then automatically open local data drainage pattern, sequence number information is obtained from this locality, product is allowed to be carried out burning fast, stop to interrupt because of network signal or network transmits the long and production time delay that causes of time delay, thus cause calibrating burning checking procedure and test slow problem generation;
Slave computer modular program adopts parallel communication fashion, adopts double-serial port two-way communication mode, and when verifying reading product electric current and voltage precision reference, multi-channel parallel reads product electric current and voltage precision reference.That is, carry out reading electric current and voltage precision reference between front 10 passages and rear 10 passages simultaneously, replace current channel serial one by one to read electric current and voltage precision reference, promote benchmark reading efficiency 100%.
The benchmark only carrying out electric current and voltage precision in checking procedure reads, and is then stored in local data base.If respective channel electric current and voltage reference data is in appointment specification limit, then using current up-to-date electric current and voltage reference data as the standard value of calibrating next time, otherwise judge that available nearest electric current and voltage reference data is as the standard value of calibrating next time using current channel.In elimination of calibrations checking procedure adopt fixing respective " reading of electric current and voltage precision reference " pattern, namely carry out once separately " reading of electric current and voltage precision reference " in calibration and checking procedure, save the time loss of once " reading of electric current and voltage precision reference ".
Upper and lower computer communication adopts circulation to send instruction, once host computer receives the signal that slave computer feeds back, then intelligence jumps out circulation.This mode realizes the data transfer communications of upper and lower computer with the fastest velocity efficiency, replace current sending command signal to bottom and with the reception of fixing " wait delay time " settling signal by upper, improve current test communications process time long, cause the problem of unnecessary time loss waste.
The baud rate of serial communication is at least 57600B, and by the next control software design of amendment, uses the drop-down routine nesting level simplified.Wherein, improve the baud rate of serial communication, effectively accelerate the data rate of upper and lower computer, improving data transmission efficiency 200%.On the other hand, simplify the next routine nesting level, being simplify circuit structure by adopting, reducing making for realizing of relay, thus simplifying the level of communication module when revising the next control software design.The next level of nesting of this simplification, refer to upper and lower computer communication and take one one mode sent, namely host computer sends once command signal to slave computer, bottom feeds back to bit signals to upper in time, stop upper transmission at many levels, the next situation just feeding back to command signal, is conducive to optimize communicate program, simplified communication protocol, promotes the feedback speed of feedback signal.
S6. after having tested, to the webserver or local data base uploading data;
Wherein, during uploading data, host computer opens two thread mode, adopts newborn thread to carry out handle data communication transmission, and the data that asynchronous call process upgrades on main thread store, the interface display update content on main thread; And said process occurs in the communication process between upper and lower computer.
Because adopting the single-unit managing electric quantity product of the managing electric quantity IC of BQ27545-A4 framework, complete after local test completes, need to the webserver or local data base uploading data, adopt main thread pattern during transmission before, due to the constraint by network signal power, wait time delay is caused when easily causing data to be transmitted, feel it is " seemingly-dead " phenomenon, it is delayed that part control in interface indicates renewal, cause employee get stiff after, the waste test duration, therefore novel computer technology is made full use of, adopt two-way bimodulus thinking, open newborn thread, the transmission of handle data communication is gone in background thread, interface display update content on asynchronous process main thread UI.Due to test once can be proceeded while background thread process data message, while ensureing data memory integrity, test effectively can be ensured.
The above is better embodiment of the present invention, not does any pro forma restriction to the present invention.It should be noted that; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (9)
1. managing electric quantity IC calibrates a method of calibration, it is characterized in that: the method comprises the steps:
S1. electro activation is gone up, on-load voltage;
S2. version number's pairing, and burning ROM file;
S3. HDQ pattern is entered;
S4. calibration mode is entered, calibration correlation parameter;
S5. enter checking mode, carry out the test of relevant item;
S6. after having tested, to the webserver or local data base uploading data;
Wherein, in step S6, during uploading data, host computer opens two thread mode, adopts newborn thread to carry out handle data communication transmission, and the data that asynchronous call process upgrades on main thread store, the interface display update content on main thread; Said process to occur in the communication process between upper and lower computer and carries out for hyperchannel simultaneously.
2. managing electric quantity IC according to claim 1 calibrates method of calibration, and it is characterized in that, described step S4 comprises:
S401. calibrate constant current and compensate bias;
S402. pcb board bias is calibrated;
S403. loading current;
S404. calibration current;
S405. calibration voltage;
S406. verify;
S407. writing sequence number is distributed;
Wherein, in step S402, host computer simplifies the calibration mode of pcb board bias, adopts the pattern of automatic intelligent to carry out screening the mean value calculating pcb board bias, with in the pattern of fixing mean value write managing electric quantity IC.
3. managing electric quantity IC according to claim 2 calibrates method of calibration, and it is characterized in that, described step S402 comprises:
S402a. according to the pcb board bias data of cycle regular hour timing acquiring part managing electric quantity product;
S402b. through integral operation, the accurate average bias value of the pcb board bias that can reflect under managing electric quantity product present case is calculated;
S402c. by Single Chip Microcomputer (SCM) program communication module write managing electric quantity IC.
4. managing electric quantity IC according to claim 1 calibrates method of calibration, and it is characterized in that, described step S5 comprises:
S501. HDQ voltage is tested;
S502. test from power consumption;
S503. test products manufacturing information;
S504. ROM internal data is tested;
S505. temperature test;
S506. voltage accuracy test;
S507. discharge current accuracy test;
S508. charging current accuracy test;
Wherein, when carrying out the electric current and voltage accuracy test of managing electric quantity IC, by the reading model of host computer amendment electric current and voltage precision; First take circulation fixed number of times to read product electric current and voltage precision, the data then collected circulation reading are weighted value that algorithm that is average and arithmetic mean calculates electric current and voltage precision as the actual value of data receiver mouth feeding back to closed-loop system.
5. the managing electric quantity IC according to claim 1 or 4 calibrates method of calibration, it is characterized in that, in described checking procedure, host computer adopts the mode of bidirectional opening image data to obtain manufacturing information content; In real-time update server while managing electric quantity product ID information, a sequence number information is backed up in local file, when carrying out sequence number information and gather in managing electric quantity product burning process, Sampling network signal lag is long, more than a specified time, then automatically open local data drainage pattern, sequence number information is obtained from this locality
Managing electric quantity IC according to claim 5 calibrates method of calibration, it is characterized in that, described slave computer modular program adopts parallel communication fashion, adopt double-serial port two-way communication mode, when verifying reading product electric current and voltage precision reference, multi-channel parallel reads product electric current and voltage precision reference.
6. managing electric quantity IC according to claim 6 calibrates method of calibration, it is characterized in that, the benchmark only carrying out electric current and voltage precision in described checking procedure reads, and is then stored in local data base.
If 7. respective channel electric current and voltage reference data is in appointment specification limit, then using current up-to-date electric current and voltage reference data as the standard value of calibrating next time, otherwise judge that available nearest electric current and voltage reference data is as the standard value of calibrating next time using current channel.
8. managing electric quantity IC according to claim 1 calibrates method of calibration, it is characterized in that, described upper and lower computer communication adopts circulation to send instruction, once host computer receives the signal that slave computer feeds back, then intelligence jumps out circulation.
9. managing electric quantity IC according to claim 1 calibrates method of calibration, and it is characterized in that, the baud rate of described serial communication is at least 57600B, and by the next control software design of amendment, uses the drop-down routine nesting level simplified.
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| CN105632557A (en) * | 2016-02-24 | 2016-06-01 | 惠州市蓝微电子有限公司 | Electricity amount management IC burn upgrading method, device and system |
| CN106569121A (en) * | 2016-11-09 | 2017-04-19 | 惠州市蓝微电子有限公司 | Method for calibrating voltage and current accuracy of power management IC |
| CN106815104A (en) * | 2016-12-20 | 2017-06-09 | 惠州市蓝微电子有限公司 | A kind of burning calibrator (-ter) unit for realizing IC burnings and various calibrating modes |
| CN107688161A (en) * | 2017-06-29 | 2018-02-13 | 惠州市蓝微新源技术有限公司 | The calibration of BMS a kind of and method of testing |
| CN109521355A (en) * | 2018-10-30 | 2019-03-26 | 惠州市蓝微电子有限公司 | A kind of burning calibration method of calibration of managing electric quantity IC |
| CN109557471A (en) * | 2018-12-28 | 2019-04-02 | 深圳市海斯科技有限公司 | A kind of battery monitoring system |
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| CN105632557A (en) * | 2016-02-24 | 2016-06-01 | 惠州市蓝微电子有限公司 | Electricity amount management IC burn upgrading method, device and system |
| CN105632557B (en) * | 2016-02-24 | 2020-03-17 | 惠州市蓝微电子有限公司 | Burning upgrading method, device and system for electric quantity management IC |
| CN106569121A (en) * | 2016-11-09 | 2017-04-19 | 惠州市蓝微电子有限公司 | Method for calibrating voltage and current accuracy of power management IC |
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| CN109521355A (en) * | 2018-10-30 | 2019-03-26 | 惠州市蓝微电子有限公司 | A kind of burning calibration method of calibration of managing electric quantity IC |
| CN109521355B (en) * | 2018-10-30 | 2021-10-26 | 惠州市蓝微电子有限公司 | Burning calibration verification method of electric quantity management IC |
| CN109557471A (en) * | 2018-12-28 | 2019-04-02 | 深圳市海斯科技有限公司 | A kind of battery monitoring system |
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Application publication date: 20150107 |