CN106569922B - Electric quantity management IC burning calibration verification method and device - Google Patents
Electric quantity management IC burning calibration verification method and device Download PDFInfo
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Abstract
The invention discloses a method for calibrating burning of an electric quantity management IC, which comprises the following steps: integrating a circuit for controlling voltage reference sampling and a circuit for controlling current reference sampling in the circuit into a new module; the voltage reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in parallel, and voltage reference sampling points are B + and B-test points of a product; the current reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in series, and current reference sampling points are two test points of B-and P-of a product; the voltage reference acquisition and the current reference acquisition share one test point B-; the reference sampling circuits of the two modules are called in a relay switching mode. By adopting the improved 20-channel burning, calibrating and checking integrated equipment, only one Agilent multimeter is needed, the production cost is reduced, and the investment is saved.
Description
Technical Field
The invention relates to the field of hardware, in particular to a method and a device for calibrating burning of an electric quantity management IC.
Background
At present, the manufacturing cost of the BQ series electric quantity management IC burning, calibration and verification integrated equipment of a company is high, two universal meters are used for each equipment, the cost expenditure of only two universal meters accounts for about three tenths of the equipment cost, the cost expenditure of the universal meters accounts for high proportion of the equipment cost, the enterprise cost is increased, and the benefit is reduced. Meanwhile, the existing BQ series electric quantity management IC burning, calibrating and checking integrated equipment adopts a module circuit of a split control universal meter to carry out respectively controlled voltage and current reference testing, so that two universal meters carry out testing voltage and current reference in a one-to-one correspondence manner, and the voltage and current reference sampling mode still has a larger improvement space and reduces the equipment manufacturing cost. Therefore, how to overcome the defects in the conventional BQ series electric quantity management IC burning, calibrating and checking integrated equipment, reduce the production cost and improve the enterprise benefit becomes a problem to be solved urgently for enterprises.
Disclosure of Invention
Based on the method, the invention provides a method and a device for calibrating burning of an electric quantity management IC.
A burning calibration verification method for a power management IC comprises the following steps:
integrating a circuit for controlling voltage reference sampling and a circuit for controlling current reference sampling in the circuit into a new module;
the voltage reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in parallel, and voltage reference sampling points are B + and B-test points of a product; the current reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in series, and current reference sampling points are two test points of B-and P-of a product;
the voltage reference acquisition and the current reference acquisition share one test point B-; the reference sampling circuits of the two modules are called in a relay switching mode.
Preferably, the method comprises:
when the communication byte instruction of the single-chip control universal meter module is 0x01, calling a voltage reference sampling module circuit, and starting the positive end and the negative end of a voltage detection port of the Agilent universal meter;
and when the communication byte instruction is 0x02, calling a current reference sampling module circuit, and enabling the positive end of the current detection port of the multimeter and the negative end shared by the current detection port and the voltage.
Preferably, the method further comprises:
the industrial computer is connected through USB, and the universal meter is remotely controlled through software.
Preferably, the method further comprises:
and sending an instruction to drive the universal meter to collect voltage and current.
Preferably, the method further comprises:
the acquired numerical value is transmitted to an upper industrial computer memory through a USB, and then a displayed result value is calculated through certain conversion.
A power management IC burn calibration verification device, the device comprising:
the integrated unit is used for integrating a circuit for controlling voltage reference sampling and a circuit for controlling current reference sampling in the circuit into a new module;
the connection unit is used for controlling the universal meter to adopt a parallel connection mode with the universal meter by the voltage reference sampling circuit, and the voltage reference sampling points are B + and B-test points of a product; the current reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in series, and current reference sampling points are two test points of B-and P-of a product;
the parallel unit is used for collecting voltage reference and current reference and jointly using a test point B-; the reference sampling circuits of the two modules are called in a relay switching mode.
Preferably, the apparatus comprises:
the first enabling unit is used for calling a voltage reference sampling module circuit to enable the positive end and the negative end of a voltage detection port of the Agilent multimeter when the communication byte instruction of the single-chip control multimeter module is 0x 01;
and the second enabling unit is used for calling the current reference sampling module circuit and enabling the positive terminal of the current detection port of the Agilent multimeter and the negative terminal shared by the current detection port and the voltage when the communication byte instruction is 0x 02.
Preferably, the apparatus further comprises:
and the remote control unit is used for remotely controlling the Agilent multimeter through software when the industrial computer is connected through the USB.
Preferably, the apparatus further comprises:
and the acquisition unit is used for sending an instruction to drive the universal meter to acquire voltage and current.
Preferably, the apparatus further comprises:
and the display unit is used for transmitting the acquired numerical value to an upper industrial computer memory through a USB (universal serial bus), and then calculating a displayed result value through certain conversion.
Has the advantages that:
the invention discloses a method for calibrating burning of an electric quantity management IC, which comprises the following steps: integrating a circuit for controlling voltage reference sampling and a circuit for controlling current reference sampling in the circuit into a new module; the voltage reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in parallel, and voltage reference sampling points are B + and B-test points of a product; the current reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in series, and current reference sampling points are two test points of B-and P-of a product; the voltage reference acquisition and the current reference acquisition share one test point B-; the reference sampling circuits of the two modules are called in a relay switching mode. By adopting the improved 20-channel burning, calibrating and checking integrated equipment, only one Agilent multimeter is needed, the production cost is reduced, and the investment is saved.
Drawings
Fig. 1 is a flowchart of a calibration method for burn calibration of a power management IC according to the present invention.
Fig. 2 is a flowchart of a calibration and verification apparatus for burning power management IC according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a method for calibrating burn-in of a power management IC includes:
s100: integrating a circuit for controlling voltage reference sampling and a circuit for controlling current reference sampling in the circuit into a new module;
s200: the voltage reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in parallel, and voltage reference sampling points are B + and B-test points of a product; the current reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in series, and current reference sampling points are two test points of B-and P-of a product;
s300: the voltage reference acquisition and the current reference acquisition share one test point B-; the reference sampling circuits of the two modules are called in a relay switching mode.
In one embodiment, the method comprises:
when the communication byte instruction of the single-chip control universal meter module is 0x01, calling a voltage reference sampling module circuit, and starting the positive end and the negative end of a voltage detection port of the Agilent universal meter;
and when the communication byte instruction is 0x02, calling a current reference sampling module circuit, and starting the positive terminal of the current detection port of the Agilent multimeter and the negative terminal shared by the current detection port and the voltage.
In one embodiment, the method further comprises:
the industrial computer is connected through a USB, and the Agilent multimeter is remotely controlled through software.
In one embodiment, the method further comprises:
and sending an instruction to drive the Agilent multimeter to collect voltage and current.
In one embodiment, the method further comprises:
the acquired numerical value is transmitted to an upper industrial computer memory through a USB, and then a displayed result value is calculated through certain conversion.
Referring to fig. 2, an apparatus for calibrating burn-in of power management IC comprises:
an integration unit 101 for integrating a circuit for controlling voltage reference sampling and a circuit for controlling current reference sampling in the circuit into a new module;
the connection unit 102 is used for controlling the universal meter to adopt a parallel connection mode with the universal meter by the voltage reference sampling circuit, and the voltage reference sampling points are B + and B-test points of a product; the current reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in series, and current reference sampling points are two test points of B-and P-of a product;
the parallel unit 103 is used for collecting voltage reference and current reference and jointly using a test point B-; the reference sampling circuits of the two modules are called in a relay switching mode.
In one embodiment, the apparatus comprises:
the first enabling unit is used for calling a voltage reference sampling module circuit to enable the positive end and the negative end of a voltage detection port of the Agilent multimeter when the communication byte instruction of the single-chip control multimeter module is 0x 01;
and the second enabling unit is used for calling the current reference sampling module circuit to enable the positive terminal of the current detection port of the Agilent multimeter and the negative terminal shared with the voltage when the communication byte instruction is 0x 02.
In one embodiment, the apparatus further comprises:
and the remote control unit is used for remotely controlling the Agilent multimeter through software when the industrial computer is connected through the USB.
In one embodiment, the apparatus further comprises:
and the acquisition unit is used for sending an instruction to drive the Agilent multimeter to acquire voltage and current.
In one embodiment, the apparatus further comprises:
and the display unit is used for transmitting the acquired numerical value to an upper industrial computer memory through a USB (universal serial bus), and then calculating a displayed result value through certain conversion.
The invention discloses a method for realizing burning calibration verification of an electric quantity management IC, which comprises the following steps: integrating a circuit for controlling voltage reference sampling and a circuit for controlling current reference sampling in the circuit into a new module;
the voltage reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in parallel, and voltage reference sampling points are B + and B-test points of a product; the current reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in series, and current reference sampling points are two test points of B-and P-of a product; the voltage reference acquisition and the current reference acquisition share one test point B-; the reference sampling circuits of the two modules are called in a relay switching mode. And adopting a scheme of the improved 20-channel burning, calibrating and checking integrated equipment (adopting a single Agilent multimeter).
1. The hardware plate of the single-section BQ electric quantity management product burning, calibrating and checking integrated equipment is additionally provided with an integrated circuit for controlling a single universal meter to perform voltage and current reference sampling.
a. The circuit for controlling voltage reference sampling and the circuit for controlling current reference sampling in the circuit are integrated into a new module. The voltage reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in parallel, and voltage reference sampling points are B + and B-test points of a product; the current reference sampling circuit controls the universal meter to be connected with the universal meter in series, and the current reference sampling points are two test points, namely B-and P-of a product. One test point B-is used in common for both voltage reference acquisition and current reference acquisition. Calling two module reference sampling circuits by adopting a relay switching mode, such as a single-chip control universal meter module, calling a voltage reference sampling module circuit when a communication byte instruction is 0x01, and starting a positive end and a negative end of a voltage detection port of the Agilent universal meter; and when the communication byte instruction is 0x02, calling a current reference sampling module circuit, and starting the positive terminal of the current detection port of the Agilent multimeter and the negative terminal shared by the current detection port and the voltage. The industrial computer is connected through a USB, the Agilent multimeter is remotely controlled through software, then an instruction is sent to drive the Agilent multimeter to collect voltage and current, the collected numerical value is transmitted to an upper industrial computer memory through the USB, and then a displayed result value is calculated through certain conversion.
b. The hardware has the advantages that:
1. the integration level of a reference reading circuit newly added to the equipment is high
The newly added reference reading circuit hardware of the equipment has high integration level, the isolation filter circuit is added, the voltage and current sampling filter circuit is added at the sampling port, clutter can be effectively filtered, and the accuracy of sampling the voltage and current reference value is realized.
2. The device has strong expandability
The hardware angle of the newly added reference reading circuit of the equipment also reserves the circuit arrangement of resistance sampling test, and simultaneously provides a resistance test interface, the resistance sampling test circuit can be called by switching the communication mode, and the current environmental temperature value can be converted by testing the resistance value of the NTC resistor.
3. The newly added reference reading circuit of the equipment has high communication transmission efficiency, high stability and reliability
1. The newly added reference reading circuit is controlled by adopting a Baud rate of 56000, and can rapidly drive to switch to control the connection of the universal meters, so that the universal meters are rapidly connected and conducted with a certain test circuit;
2. the newly-added reference reading circuit does not need to be externally extended with a serial port, a singlechip in the reference reading circuit is used as a slave singlechip, can be controlled by a master singlechip on a master control board, and can listen to an order driven by the master singlechip, so that the newly-added reference reading circuit and the master control circuit share one communication serial port. And the number of extended serial ports is reduced, and the operation load of an industrial computer is reduced.
1) Software angle:
a. a method of product voltage current reference reading:
the software view is mainly subdivided from two blocks of "voltage" and "current". Firstly, the software control carries out the voltage test, when the voltage reference test is carried out, the voltage reference sampling of a certain channel is carried out firstly, when the voltage reference value after the sampling is compared with the voltage reference standard value of the channel (the voltage reference standard value set by each channel before the test is taken as a standard of a channel voltage source), if the absolute value of the difference value of the two is within a specified range (for example, within +/-1.2 mV, which can be set by a person), the voltage reference test of the next channel is continued (because the reference sampling test is in a serial mode, the reference sampling test is a channel progressive test). If the absolute value of the difference value of the two values exceeds the specified range, starting a reading model of cyclic sampling by the current channel, wherein the number of the cyclic sampling can be manually set (generally, the default is 6), respectively storing the sampled voltage reference values into a computer memory (stored in a variable mode) when starting a cyclic sampling reference value of fixed number, then removing the maximum value and the minimum value of the voltage reference sampled by the current channel, then performing 4 times of accumulation weighted average algorithm in the rest sampling values to obtain the voltage reference value of the current channel, then the voltage reference value calculated by the weighted average is compared with the voltage reference standard value of the channel, and if the absolute value of the difference value of the two is within the allowable range, the reference sampling of the current channel voltage is successful, otherwise, the reference sampling of the current channel voltage is failed, and the reference sampling of the next channel is continued. The same is true for the current reference sampling.
c. Binding the universal meter and the equipment number:
the method comprises the steps that the identification function between equipment software and the universal meter is added, namely the equipment software can communicate with the universal meter through a USB port through a carrier of an industrial computer when being initialized, upper software sends a universal meter model number identification command to the universal meter, the model of the Agilent universal meter which is currently applied to the equipment is stored in a memory of the current industrial computer after communication returns OK, before product testing, the equipment number (uniqueness) of the equipment is taken as a condition, query search is carried out in a corresponding table which stores relevant information related to the universal meter number and the equipment number in a server, and the table contains an assembly line (which can be updated), the equipment number (uniqueness) and the universal meter number (which can be changed and updated). If the relevant information record with the equipment number as the main key (uniqueness) exists in the table, whether the assembly line number in the record and the Agilent multimeter number applied on the current equipment are consistent with the relevant information (the assembly line number and the multimeter number) acquired in the current local test software is checked, if so, the next test is continued, and if one content is inconsistent, the corresponding relevant information (the assembly line number or the multimeter number) is updated immediately; if the relevant information record taking the equipment number as a main key (uniqueness) does not exist in the table, the software controls to bind and store the currently acquired information (the equipment number, the assembly line, the Agilent multimeter number bound by the equipment) into a corresponding table in the server.
The method can effectively bind the information of the equipment and the universal meter, and can enable a user to quickly position which equipment, which workshop and which production line the universal meter of a certain model is applied to through the information meter in the server. The maintenance efficiency of operating personnel is improved.
The original scheme is as follows: adopting the scheme of burning, calibrating and checking the integrated equipment of the original 20 channels (adopting two Agilent multimeters);
the new scheme is as follows: adopting a scheme of the improved 20-channel burning, calibrating and checking integrated equipment (adopting a single Agilent universal meter);
the cost is saved: 1 Agilent universal meter is saved for the burning, calibration and verification integrated equipment of each 20 channels, 1.5 thousands of calculation is carried out according to each Agilent universal meter, and 150 ten thousands of units can be saved for 100 online integrated equipment.
The operation principle of the present invention is described in detail above, and the description of the operation principle is only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A burning calibration verification method for an electric quantity management IC is characterized by comprising the following steps:
integrating a circuit for controlling voltage reference sampling and a circuit for controlling current reference sampling in the circuit into a new module;
the voltage reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in parallel, and voltage reference sampling points are B + and B-test points of a product; the current reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in series, and current reference sampling points are two test points of B-and P-of a product;
the voltage reference acquisition and the current reference acquisition share one test point B-; the calling of the two module reference sampling circuits is carried out by adopting a relay switching mode;
when the voltage/current reference test is carried out, firstly, sampling the reference value of a certain channel, and comparing the sampled reference value with the reference standard value of the current channel;
if the absolute value of the difference value of the two is in the specified range, continuing the benchmark test of the next channel;
if the absolute value of the difference between the two values exceeds a specified range, starting a reading model of cyclic sampling of the current channel, respectively storing the sampled reference values into a computer memory when starting cyclic sampling reference values of fixed times, then removing the maximum value and the minimum value of the reference value sampled by the current channel, then performing 4-time accumulation weighted average algorithm on the rest sampling values to obtain the reference value of the current channel, then comparing the reference value obtained by weighted average conversion with the reference standard value of the channel, if the absolute value of the difference between the two values is within an allowable range, the reference sampling of the current channel is successful, otherwise, the reference sampling of the current channel is failed, and continuing the reference sampling of the next channel.
2. The method of claim 1, comprising:
when the communication byte instruction of the single-chip control universal meter module is 0x01, calling a voltage reference sampling module circuit, and starting the positive end and the negative end of a voltage detection port of the universal meter;
and when the communication byte instruction is 0x02, calling a current reference sampling module circuit, and enabling the positive end of the current detection port of the multimeter and the negative end shared by the current detection port and the voltage.
3. The method of claim 1, comprising:
the industrial computer is connected through USB, and the universal meter is remotely controlled through software.
4. The method of claim 1, further comprising:
and sending an instruction to drive the universal meter to collect voltage and current.
5. The method of claim 1, further comprising:
the acquired numerical value is transmitted to an upper industrial computer memory through a USB, and then a displayed result value is calculated through certain conversion.
6. The utility model provides a calibration device is burnt to electric quantity management IC, its characterized in that includes:
the integrated unit is used for integrating a circuit for controlling voltage reference sampling and a circuit for controlling current reference sampling in the circuit into a new module;
the connection unit is used for controlling the universal meter to adopt a parallel connection mode with the universal meter by the voltage reference sampling circuit, and the voltage reference sampling points are B + and B-test points of a product; the current reference sampling circuit controls the universal meter to adopt a mode of being connected with the universal meter in series, and current reference sampling points are two test points of B-and P-of a product;
the parallel unit is used for collecting voltage reference and current reference and jointly using a test point B-; the calling of the two module reference sampling circuits is carried out by adopting a mode of switching a relay, wherein:
when the voltage/current reference test is carried out, firstly, sampling the reference value of a certain channel, and comparing the sampled reference value with the reference standard value of the current channel;
if the absolute value of the difference value of the two is in the specified range, continuing the benchmark test of the next channel;
if the absolute value of the difference between the two values exceeds a specified range, starting a reading model of cyclic sampling of the current channel, respectively storing the sampled reference values into a computer memory when starting cyclic sampling reference values of fixed times, then removing the maximum value and the minimum value of the reference value sampled by the current channel, then performing 4-time accumulation weighted average algorithm on the rest sampling values to obtain the reference value of the current channel, then comparing the reference value obtained by weighted average conversion with the reference standard value of the channel, if the absolute value of the difference between the two values is within an allowable range, the reference sampling of the current channel is successful, otherwise, the reference sampling of the current channel is failed, and continuing the reference sampling of the next channel.
7. The device of claim 6, comprising:
the first enabling unit is used for calling a voltage reference sampling module circuit to enable the positive end and the negative end of a voltage detection port of the universal meter when the communication byte instruction of the single-chip control universal meter module is 0x 01;
and the second enabling unit is used for calling the current reference sampling module circuit when the communication byte instruction is 0x02, and then enabling the positive end of the current detection port of the multimeter and the negative end shared by the voltage.
8. The device of claim 6, further comprising:
and the remote control unit is used for remotely controlling the universal meter through software when the industrial computer is connected through the USB.
9. The device of claim 6, further comprising:
and the acquisition unit is used for sending an instruction to drive the universal meter to acquire voltage and current.
10. The device of claim 6, further comprising:
and the display unit is used for transmitting the acquired numerical value to an upper industrial computer memory through a USB (universal serial bus), and then calculating a displayed result value through certain conversion.
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| 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 |
| CN111044964A (en) * | 2019-12-31 | 2020-04-21 | 惠州市蓝微电子有限公司 | Voltage and current reference debugging method and device |
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| CN2060897U (en) * | 1989-08-26 | 1990-08-22 | 山东省纺织工业电脑技术咨询服务中心 | Intelligent on-line multi-test electric meter |
| US5627837A (en) * | 1994-08-23 | 1997-05-06 | Alcatel Network Systems, Inc. | Apparatus and method for suppressing protection switching in a digital communication system in the event of an error burst |
| JP3861874B2 (en) * | 2003-12-16 | 2006-12-27 | 株式会社デンソー | AD converter failure detection device |
| CN200993670Y (en) * | 2006-12-16 | 2007-12-19 | 扬州恒信仪表有限公司 | IC card circuit board detection conversion device |
| CN101839936B (en) * | 2009-03-19 | 2013-09-25 | 北京普源精电科技有限公司 | Current measurement device |
| CN101763158B (en) * | 2009-12-22 | 2011-09-14 | 中国航空工业集团公司第六三一研究所 | Power supply monitoring and isolation control system for airborne equipment computer |
| CN101769957B (en) * | 2010-02-02 | 2012-12-12 | 株洲南车时代电气股份有限公司 | Automatic switching circuit for voltage and current measurement and method thereof |
| CN104133167A (en) * | 2013-04-30 | 2014-11-05 | 鸿富锦精密工业（深圳）有限公司 | DC step-down circuit test system and method |
| CN103698691B (en) * | 2013-12-27 | 2016-08-17 | 珠海银隆电器有限公司 | Automatic detection and calibration method for electric automobile bridge plate |
| CN204086477U (en) * | 2014-10-20 | 2015-01-07 | 沈阳工程学院 | A kind of multi-channel signal acquiring frock |
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