CN109188312A - A kind of the high/low temperature Online Transaction Processing and method of power module - Google Patents
A kind of the high/low temperature Online Transaction Processing and method of power module Download PDFInfo
- Publication number
- CN109188312A CN109188312A CN201811344452.6A CN201811344452A CN109188312A CN 109188312 A CN109188312 A CN 109188312A CN 201811344452 A CN201811344452 A CN 201811344452A CN 109188312 A CN109188312 A CN 109188312A
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- CN
- China
- Prior art keywords
- programmable
- power supply
- power module
- load
- low temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- G01R31/40—Testing power supplies
Abstract
The present invention relates to the high/low temperature Online Transaction Processing and method of a kind of power module, system includes power module, programmable power supply, programmable electronic load, programmable digital multimeter and computer to be measured；Method includes initializing to programmable electronic load, programmable digital multimeter and programmable power supply, is attached it with computer；Computer reads the voltage value of programmable digital multimeter, reads the output voltage values and overcurrent-overvoltage threshold value of programmable power supply, reads the load value of programmable electronic load, and calculates the electrical characteristic parameter of power module to be measured.The features such as present invention realizes the high/low temperature on-line testing of power module, and there is performance to stablize, and acquisition precision is high, at low cost, highly reliable can guarantee accurately to measure electrical characteristic parameter of the power module under high and low temperature environment.
Description
Technical field
The present invention relates to testing field, the high/low temperature Online Transaction Processing and method of specifically a kind of power module.
Background technique
With the development of electronic technology, power module is used widely in the fields such as civilian, commercial, Industry Control.Electricity
Source module has the advantages that small in size, power density is high, reliable performance, usually as the power supply unit of integrated circuit board.For
Guarantee the safe power supply under the conditions of integrated circuit board is stuck in high and low temperature environment, needs to carry out the electrical characteristics index of power module high
Low temperature on-line testing.
According to investigation, test side that the existing power module test macro in market all uses power module high/low temperature offline
Method can not achieve the high/low temperature on-line testing of power module, and it is special cannot accurately to measure electricity of the power module under high and low temperature environment
Property index, therefore the high and low temperature test data of power module can have error.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides the high/low temperature Online Transaction Processing and method of a kind of power module,
Solving offline test method cannot achieve the high/low temperature on-line testing of power module, make the high and low temperature test data of power module
There are problems that error.
Present invention technical solution used for the above purpose is:
A kind of high/low temperature Online Transaction Processing of power module, including
Power module to be measured, is set in high-low temperature chamber, and is wired to connecting terminal；
Power supply connects connecting terminal, provides the input voltage and input current of power module to be measured；
Load connects connecting terminal, as the load of power module to be measured, for making power supply output definite value electric current to be measured；
Multimeter connects connecting terminal, reads the output voltage of power module to be measured；
Computer connects power supply, reads its output voltage values and overcurrent-overvoltage threshold value；Connection load, reads its load value；
Multimeter is connected, its voltage value is read, for calculating the electrical characteristic parameter of power module to be measured.
The power module to be measured is set on PCB printed circuit board by metal needle set.
Power module to be measured, conducting wire, metal needle guard, PCB printed circuit board are set in high-low temperature chamber.
The quantity of the load, multimeter and power supply is one or several.
The power supply is programmable power supply；The load is that programmable electronic loads；The multimeter is programmable digital
Multimeter, connecting terminal are copper connecting terminal.
The metal needle guard is copper gold-plated needle guard；Conducting wire is high temperature wire.
A kind of high/low temperature on-line testing method of power module, comprising the following steps:
Step 1: programmable electronic load, programmable digital multimeter and programmable power supply are initialized, make its with
Computer is attached；
Step 2: computer read programmable digital multimeter voltage value, read programmable power supply output voltage values and
Overcurrent-overvoltage threshold value, reads the load value of programmable electronic load, and calculates the electrical characteristic parameter of power module to be measured.
After being initialized to programmable electronic load, programmable digital multimeter and programmable power supply, assisted by SCPI
The instruction for issuing to programmable electronic load, programmable digital multimeter and programmable power supply and inquiring respective sequence number is discussed, is determined
The connection status of each equipment and computer.
After determining that programmable electronic load is connect with computer,
The distal end compensation model of programmable electronic load and readback are set, determine that programmable electronic load is compensated in distal end
Mode；
The load value of programmable electronic load and readback are set, determine that the load value of programmable electronic load is suitable for power supply
The output loading of module；
Programmable electronic is set and loads starting work and readback working condition, determines programmable electronic load in starting shape
State.
After determining that programmable power supply is connect with computer,
The distal end compensation model of programmable power supply and readback are set, determine that programmable power supply is in distal end compensation model；
Output voltage values, over-voltage over-current protection threshold value and the readback of programmable power supply are set；
Programmable power supply is set and starts work and readback working condition, determines that programmable power supply is in starting state.
After determining that programmable digital multimeter is connect with computer, the range of programmable digital multimeter is set and is returned
It reads, determines that the range of programmable digital multimeter is suitable for measuring the output voltage of power module.
The invention has the following beneficial effects and advantage:
1. the present invention accurately measures electrical characteristics index of the power module under high and low temperature environment；
The features such as 2. there is test method of the invention performance to stablize, acquisition precision is high, at low cost, highly reliable；
3. the present invention is communicated with programmable device using international SCPI agreement, programmable set for different
It is standby only to need to change SCPI order and realize control to programmable device, be conducive to quick-replaceable programmable device；
4. the present invention is powered the input terminal of power module by programmable power supply realization and voltage distal end compensates, lead to
It crosses programmable electronic load to compensate the output end offer load of power module and load distal end, utilizes Kelvin's four-wire system principle
The output end voltage that power module is read by programmable digital multimeter, can guarantee accurately to measure power module in high/low temperature
Electrical characteristic parameter under environment.
Detailed description of the invention
Fig. 1 is system construction drawing of the invention.
Fig. 2 is that input voltage distal end of the invention compensates and load distal end compensation principle schematic diagram.
Fig. 3 is PCB printed circuit board schematic illustration of the invention.
Fig. 4 is flow chart of the method for the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and embodiments.
To make above-mentioned purpose of the invention, feature and a little can be more obvious and easy to understand, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the present invention can be implemented in many other ways than those described herein, and those skilled in the art can not disobey
Similar improvement is done in the case where back invention intension, therefore the present invention is not limited to the specific embodiments disclosed below.
It should be noted that be referred to as " being set to " another element when element, it may directly on the other element,
Or there may also be elements placed in the middle.When an element is known as " connection " another element, it be can be directly connected to separately
One element may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.It is specific that description is intended merely in the term used in the description of invention herein
Embodiment purpose, it is not intended that in limitation the present invention.
It is as shown in Figure 1 system construction drawing of the invention.
The device of power module high/low temperature on-line testing, comprising: computer, PCB printed circuit board, high temperature wire, copper
Connecting terminal, copper gold-plated needle guard, programmable power supply, programmable electronic load, programmable digital multimeter.Pass through computer
USB interface is arranged and is read using SCPI agreement the output voltage values and overcurrent-overvoltage threshold value of programmable power supply, is arranged and reads
The load value of programmable electronic load, reads and records the voltage value of programmable digital multimeter, read according to from programmable device
The electrical characteristic parameter of the test data record and calculating power module got.
PCB printed circuit board: being placed in high-low temperature chamber, carries power module, connects high temperature wire and copper gold-plated needle guard；
High temperature wire: connection PCB printed circuit board and copper connecting terminal；
Copper connecting terminal: connection high temperature wire and programmable power supply, programmable electronic load, programmable digital are mostly used
Table；
Copper gold-plated needle guard: connection power module and PCB printed circuit board；
Programmable power supply: the input voltage and input current of power module are provided.Quantity includes but is not limited to 1 programmable
Power supply；
Programmable electronic load: as the load of power module, power module is made to export definite value electric current.Quantity includes but not
It is limited to 1 programmable electronic load；
Programmable digital multimeter: the output voltage of power module is read.Quantity includes but is not limited to 1 programmable digital
Multimeter.
PCB printed circuit board, high temperature wire, copper gold-plated needle guard and power module of the invention is placed in thermocycling
In case.
It is illustrated in figure 2 input voltage distal end of the invention and compensates and load distal end compensation principle schematic diagram.
The wherein part in dotted line frame to be set in high-low temperature chamber.
High temperature wire of the invention connects copper connecting terminal, and copper connecting terminal is connected to the S of programmable power supplyP+ remote
End compensating, VP+ output end, VPOutput end, SPDistal end compensates, and is connected to the S of programmable electronic loadLThe compensation of+distal end, VL+ negative
Carry end, VLLoad end, SLDistal end compensates, and is connected to the end HI, LO of programmable digital multimeter.
It is illustrated in figure 3 PCB printed circuit board schematic illustration of the invention.
Vin+, Vin-, Vout+, Vout- endpoint of copper gold-plated needle guard connection PCB printed circuit board of the invention, power supply
Module is inserted in copper gold-plated pin and puts on.The S of high temperature wire connection PCB printed circuit boardP+、VP+、VP-、SP-、SL+、VL+、VL-、
SLEndpoint.
It is illustrated in figure 4 flow chart of the method for the present invention.
In order to realize the computer USB that must initialize programmable device connection first to the long-range control of programmable device
Interface.After interface initialization finishes, inquiry is issued to programmable electronic load, power supply, digital multimeter by SCPI agreement
The instruction of respective sequence number, for determining that each equipment has connected success.After determining each equipment successful connection, issued to equipment
Simultaneously whether readback devices initialize success for the instruction of initialization.
The distal end compensation model of programmable electronic load and readback are set, determine that programmable electronic load is compensated in distal end
Mode；The distal end compensation model of programmable power supply and readback are set, determine that programmable power supply is in distal end compensation model；Setting can
The simultaneously readback of the range of program numbers multimeter determines that the range of programmable digital multimeter is suitable for measuring the output of power module
Voltage.
The load value of programmable electronic load and readback are set, determine that the load value of programmable electronic load is suitable for power supply
The output loading of module；Output voltage values, over-voltage over-current protection threshold value and the readback of programmable power supply are set, determine programmable electricity
The output voltage values in source are suitable for the input voltage of power module, limit the output voltage of programmable power supply and export the upper of electric current
Threshold value is limited with protection power source module.
Programmable electronic is set and loads starting work and readback working condition, determines programmable electronic load in starting shape
State；Programmable power supply is set and starts work and readback working condition, determines that programmable power supply is in starting state；It reads programmable
The voltage and current measurement value of digital multimeter, power supply, electronic load；According to the measured value read from programmable device, calculate
Power module relevant.
Claims (10)
1. a kind of high/low temperature Online Transaction Processing of power module, it is characterised in that: including
Power module to be measured, is set in high-low temperature chamber, and is wired to connecting terminal；
Power supply connects connecting terminal, provides the input voltage and input current of power module to be measured；
Load connects connecting terminal, as the load of power module to be measured, for making power supply output definite value electric current to be measured；
Multimeter connects connecting terminal, reads the output voltage of power module to be measured；
Computer connects power supply, reads its output voltage values and overcurrent-overvoltage threshold value；Connection load, reads its load value；Connection
Multimeter reads its voltage value, for calculating the electrical characteristic parameter of power module to be measured.
2. the high/low temperature Online Transaction Processing of power module according to claim 1, it is characterised in that: the power supply to be measured
Module is set on PCB printed circuit board by metal needle set.
3. the high/low temperature Online Transaction Processing of power module according to claim 1 or 2, it is characterised in that: power supply to be measured
Module, conducting wire, metal needle guard, PCB printed circuit board are set in high-low temperature chamber.
4. the high/low temperature Online Transaction Processing of power module according to claim 1, it is characterised in that: the load, ten thousand
It is one or several with the quantity of table and power supply.
5. the high/low temperature Online Transaction Processing of power module according to claim 1, it is characterised in that: the power supply is can
Program power supply；The load is that programmable electronic loads；The multimeter is programmable digital multimeter, and the connecting terminal is
Copper connecting terminal, the conducting wire are high temperature wire.
6. the on-line testing method of any one system according to claim 1~5, it is characterised in that: the following steps are included:
Step 1: programmable electronic load, programmable digital multimeter and programmable power supply being initialized, itself and calculating are made
Machine is attached；
Step 2: computer reads the voltage value of programmable digital multimeter, reads the output voltage values and overcurrent of programmable power supply
Overvoltage threshold, reads the load value of programmable electronic load, and calculates the electrical characteristic parameter of power module to be measured.
7. the high/low temperature on-line testing method of power module according to claim 6, it is characterised in that: to programmable electronic
After load, programmable digital multimeter and programmable power supply are initialized, by SCPI agreement to programmable electronic load, can
Program numbers multimeter and programmable power supply issue the instruction for inquiring respective sequence number, determine the connection shape of each equipment and computer
State.
8. the high/low temperature on-line testing method of power module according to claim 6, it is characterised in that: programmable determining
After electronic load is connect with computer,
The distal end compensation model of programmable electronic load and readback are set, determine programmable electronic load in distal end compensation mould
Formula；
The load value of programmable electronic load and readback are set, determine that the load value of programmable electronic load is suitable for power module
Output loading；
Programmable electronic is set and loads starting work and readback working condition, determines programmable electronic load in starting state.
9. the high/low temperature on-line testing method of power module according to claim 6, it is characterised in that: programmable determining
After power supply is connect with computer,
The distal end compensation model of programmable power supply and readback are set, determine that programmable power supply is in distal end compensation model；
Output voltage values, over-voltage over-current protection threshold value and the readback of programmable power supply are set；
Programmable power supply is set and starts work and readback working condition, determines that programmable power supply is in starting state.
10. the high/low temperature on-line testing method of power module according to claim 6, it is characterised in that: can be compiled in determination
After journey digital multimeter is connect with computer, the range of programmable digital multimeter and readback are set, determine that programmable digital is more
It is suitable for measuring the output voltage of power module with the range of table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811344452.6A CN109188312A (en) | 2018-11-13 | 2018-11-13 | A kind of the high/low temperature Online Transaction Processing and method of power module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811344452.6A CN109188312A (en) | 2018-11-13 | 2018-11-13 | A kind of the high/low temperature Online Transaction Processing and method of power module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109188312A true CN109188312A (en) | 2019-01-11 |
Family
ID=64939362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811344452.6A Pending CN109188312A (en) | 2018-11-13 | 2018-11-13 | A kind of the high/low temperature Online Transaction Processing and method of power module |
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|---|---|
| CN (1) | CN109188312A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852733A (en) * | 2014-02-17 | 2014-06-11 | 上海大学 | LED power supply performance analysis device and method |
| CN103869260A (en) * | 2012-12-13 | 2014-06-18 | 中兴通讯股份有限公司 | Power supply test system and method |
| CN104569680A (en) * | 2015-01-06 | 2015-04-29 | 工业和信息化部电子第五研究所 | Testing device and method for DC/DC converter |
| CN206147075U (en) * | 2016-08-22 | 2017-05-03 | 上海久航电子有限公司 | High low temperature of electrical unit screening test system |
| CN208076687U (en) * | 2018-03-27 | 2018-11-09 | 陕西省电子技术研究所 | A kind of aged test tooling for power module |
-
2018
- 2018-11-13 CN CN201811344452.6A patent/CN109188312A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103869260A (en) * | 2012-12-13 | 2014-06-18 | 中兴通讯股份有限公司 | Power supply test system and method |
| CN103852733A (en) * | 2014-02-17 | 2014-06-11 | 上海大学 | LED power supply performance analysis device and method |
| CN104569680A (en) * | 2015-01-06 | 2015-04-29 | 工业和信息化部电子第五研究所 | Testing device and method for DC/DC converter |
| CN206147075U (en) * | 2016-08-22 | 2017-05-03 | 上海久航电子有限公司 | High low temperature of electrical unit screening test system |
| CN208076687U (en) * | 2018-03-27 | 2018-11-09 | 陕西省电子技术研究所 | A kind of aged test tooling for power module |
Non-Patent Citations (1)
| Title |
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| 张雷 等: "《DC-DC电源模块自动测试系统设计》", 《微处理机》 * |
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Application publication date: 20190111 |
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