CN107782982A - A kind of balanced method and system of automatic test multiphase current - Google Patents
A kind of balanced method and system of automatic test multiphase current Download PDFInfo
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- CN107782982A CN107782982A CN201710915574.5A CN201710915574A CN107782982A CN 107782982 A CN107782982 A CN 107782982A CN 201710915574 A CN201710915574 A CN 201710915574A CN 107782982 A CN107782982 A CN 107782982A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/16—Measuring asymmetry of polyphase networks
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
A kind of balanced method and system of automatic test multiphase current, comprise the following steps：First, test platform is built, dc source, load meter, universal meter and PC connections are realized by data transfer by cable；Secondly, universal meter is connected to the outputting inductance both ends of a voltage module wherein phase, starts to control dc source to power to voltage module by PC programs；Again, drawing load is carried out according to the output current grade of voltage module by load meter, by universal meter in different current data record and storages under drawing load；Finally, the probe of universal meter is connected to next phase outputting inductance both ends of voltage module, circulation is operated and data acquisition, is finished until all phases all measure to obtain test report.The present invention is operated by fictitious load combination PC, is changed into PC operations from manually operated to multiphase current equilibrium detection mode in dc source by existing, is simplified operating process, save artificial.
Description
Technical field
The present invention relates to a kind of electric current detecting method, more particularly to a kind of balanced method of automatic test multiphase current and it is
System.
Background technology
The fast development based on information technology and needs, all kinds of servers, cloud computing equipment etc. are in hardware aspect in recent years
Possessed function is stronger and stronger, and the steady operation of the hardware such as server, the performance and scalability of its electric power system are bases
Plinth.
Existing electric power system generally all uses modular dc source, and MOS through-current capability is certain in dc source
, typically at tens amperes, but hundreds of amperes can be even up to more than 100 amperes for many dc sources, electric current, this
In the case of kind, it is necessary to which the conversion plan of the high current of dc source is realized in more or multiple MOS parallel connections.This kind of DC power supply terminal
An important parameter be exactly current balance, i.e. current balance.Although the parameter of paralleling MOS is substantially the same, Er Qie great
Also there are the method for realizing current balance in most manufacturers.However, to ensure that the dc source of design is reliable, design is completed and production
Before product dispatch from the factory, the DCO of current balance is still carried out.But present voltage regulator scheme have plenty of 6 phases, 8 phases with
It is upper even to tens phases, the phase amount in later power supply scheme can be more.With the change of electric current, can automatically increase or
Reduce the phase amount opened.Therefore, the current balance method and system of existing test multiphase just become especially complex, cause to test
When repeated work it is more and less efficient.
The content of the invention
The invention provides the method and system that a kind of automatic test multiphase current is balanced, for solving pin in the prior art
The problem of relatively low to multiphase current testing efficiency, can be with the acquisition phase current of direct convenience by the operation of fictitious load combination PC
Value, so as to preferably improve testing efficiency.
The present invention is achieved by the following technical programs：
A kind of balanced method of automatic test multiphase current, comprises the following steps：
First, test platform is built, dc source, load meter, universal meter and PC connections are realized that data pass by cable
Defeated, the dc source is used for the voltage module power supply with more MOS, and the load meter is that voltage regulator simulation uses
The load of process；
Secondly, universal meter is connected to the outputting inductance both ends of a voltage module wherein phase, it is straight to start control by PC programs
Power supply is flowed to power to voltage module；
Again, drawing load is carried out according to the output current grade of voltage module by load meter, universal meter is carried in different draw
Lower current data record and storage；
Finally, the probe of universal meter is connected to next phase outputting inductance both ends of voltage module, circulation carries out operation sum
According to acquisition, finished until all phases all measure to obtain test report.
A kind of balanced method of automatic test multiphase current as described above, the cable use GPIB cables, the electricity
Die block is voltage regulator or is the module of hot-plug equipment power supply.
A kind of balanced method of automatic test multiphase current as described above, the voltage module is more than 6 phases.
Present invention also offers the system that a kind of automatic test multiphase current is balanced, including dc source, load meter, general-purpose
Table and PC, the PC are connected and realize data transfer respectively with dc source, load meter, universal meter respectively by cable, described straight
Flow power supply to be used for the voltage module power supply with more MOS, the load meter is that voltage regulator simulation uses the negative of process
Carry；The universal meter electrically connects with the outputting inductance both ends of voltage module, during test, passes through mobile multimeter measuring probe and obtains voltage
The electric current at all phase outputting inductance both ends and test report is formed in module.
A kind of balanced system of automatic test multiphase current as described above, the cable use GPIB cables, the electricity
Die block is voltage regulator or is the module of hot-plug equipment power supply.
A kind of balanced system of automatic test multiphase current as described above, the voltage module is more than 6 phases.
Compared with prior art, it is an advantage of the invention that：
1st, the present invention is operated by fictitious load combination PC, by existing to the balanced detection of multiphase current in dc source
Mode is changed into PC operations from manually operated, simplifies operating process, saves artificial；Only needed universal meter in test process
Probe is realized and electrically connected successively with outputting inductance, then achieves that automatic test multi-phase VR by PC operations
Current balance, method is simple, and data are reliable.
2nd, the present invention is using PC records and the test parameter of Storage universal test meter, and forms test report, test process operation
It hurry up, can prevent from drawing load to cause temperature drift caused by device temperature rising, guarantee measurement high-acruracy survey for a long time.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described.
Fig. 1 is the electrical schematic of the present invention；
Fig. 2 is the flow chart of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.
Wherein, the technical term implication being related to is as follows：
DC Power, Chinese implication are dc source
Phase, Chinese implication book for phase or mutually
Multi-phase, Chinese implication are multiphase
VR voltage regular, Chinese implication are voltage regulator, realize voltage conversion
Current balance, Chinese implication are current balance
Hot swap, Chinese implication are hot plug
As shown in Figure 1 and Figure 2, the balanced method of a kind of automatic test multiphase current of the present embodiment, comprises the following steps：
First, test platform is built, dc source, load meter, universal meter and PC connections are realized that data pass by cable
Defeated, the dc source is used for the voltage module power supply with more MOS, and the load meter is that voltage regulator simulation uses
The load of process；
Secondly, universal meter is connected to the outputting inductance both ends of a voltage module wherein phase, it is straight to start control by PC programs
Power supply is flowed to power to voltage module；
Again, drawing load is carried out according to the output current grade of voltage module by load meter, universal meter is carried in different draw
Lower current data record and storage；
Finally, the probe of universal meter is connected to next phase outputting inductance both ends of voltage module, circulation carries out operation sum
According to acquisition, finished until all phases all measure to obtain test report.
In the prior art, the VR schemes of the rambling 228A of support to a 6phase are, it is necessary to test unlatching respectively
1phase-6phase current balance situations, it is necessary to simulate 6 kinds of drawing load situations during manual test, every kind of draw carries feelings
Each MOS current value is tested under condition respectively, then recorded the value of test in test report.Be related to fixed test point and
Load meter, and read test instrument are adjusted, carries out data record, it is necessary to spend great effort to do repetitive operation, efficiency is low
Under.
Specifically, the present embodiment illustrates so that 6phase VR is detected as an example, first by GPIB cables by DC
Power, load meter, universal meter connect with PC, and wherein DC Power are used for the VR power supplies to design, that is, access multinomial VR's
Vin+/- end, load meter simulation VR use the load of process, access Vout and GND ends, and the probe of universal meter is connected in multinomial VR
Outputting inductance L both ends, for measuring the voltage at outputting inductance L both ends.
Realized then in conjunction with PC and automatically control load meter fictitious load situation, detailed process includes, universal meter is connected to
Phase1 outputting inductance L1 both ends, PC program start to control DC Power to power to VR, and load meter is electric according to VR output
Stream grade carries out drawing load, and in the case of different pulling load currents, the record for reading universal meter or storage are arrived into test report respectively
In, then the probe of universal meter is connected to Phase2 outputting inductance L2 both ends, carry out same drawing and carry, do identical operation,
Then the Phase n that change to Phase3 ..., until all phase are measured one time.This measurement pattern only needs to change several
The probe location of secondary digital multimeter, automatic test multi-phase VR current are then achieved that by PC operations
Balance, method is simple, and data are reliable.Due to being PC tests, operation is fast, can prevent from drawing load to cause device temperature for a long time
Temperature drift caused by rising, ensure measurement high-acruracy survey.
Present invention also offers the system that a kind of automatic test multiphase current is balanced, including dc source, load meter, general-purpose
Table and PC, the PC are connected and realize data transfer respectively with dc source, load meter, universal meter respectively by cable, described straight
Flow power supply to be used for the voltage module power supply with more MOS, the load meter is that voltage regulator simulation uses the negative of process
Carry；The universal meter electrically connects with the outputting inductance both ends of voltage module, during test, passes through mobile multimeter measuring probe and obtains voltage
The electric current at all phase outputting inductance both ends and test report is formed in module.
The present invention is operated by fictitious load combination PC, by existing to multiphase current equilibrium detection side in dc source
Formula is changed into PC operations from manually operated, simplifies operating process, saves artificial；Only need to visit in universal meter in test process
Pin is realized and electrically connected successively with outputting inductance, then achieves that automatic test multi-phase VR by PC operations
current balance。
Further, cable uses GPIB cables in the present embodiment, and voltage module is voltage regulator or is hot plug
The module of equipment power supply.Voltage module is more than 6 phases.
The present invention tests effectively not only for VR current balance, needs more external Mos for hot swap
Situation, it is same effectively, current balance field whether is reached even for each individually VR of more VR tests in parallel
Close, this method of testing is equally effective.
The technology contents of the not detailed description of the present invention are known technology.
Claims (6)
1. a kind of balanced method of automatic test multiphase current, it is characterised in that comprise the following steps：
First, test platform is built, dc source, load meter, universal meter and PC connections are realized by data transfer by cable, institute
State dc source and be used to the voltage module power supply with more MOS, the load meter be that voltage regulator simulation uses process
Load；
Secondly, universal meter is connected to the outputting inductance both ends of a voltage module wherein phase, starts to control direct current by PC programs
Source powers to voltage module；
Again, drawing load is carried out according to the output current grade of voltage module by load meter, by universal meter in different electricity under drawing load
Flow data records and storage；
Finally, the probe of universal meter is connected to next phase outputting inductance both ends of voltage module, circulation carries out operation and data obtain
Take, finished until all phases all measure to obtain test report.
2. the balanced method of a kind of automatic test multiphase current according to claim 1, it is characterised in that the cable is adopted
With GPIB cables, the voltage module is voltage regulator or is the module of hot-plug equipment power supply.
A kind of 3. balanced method of automatic test multiphase current according to claim 1, it is characterised in that the voltage-mode
Block is more than 6 phases.
A kind of 4. balanced system of automatic test multiphase current, it is characterised in that including dc source, load meter, universal meter and
PC, the PC are connected and realize data transfer respectively with dc source, load meter, universal meter respectively by cable, the direct current
Source is used for the voltage module power supply with more MOS, and the load meter is load of the voltage regulator simulation using process；Institute
State universal meter to electrically connect with the outputting inductance both ends of voltage module, during test, pass through mobile multimeter measuring probe and obtain voltage module
In all phase outputting inductance both ends electric current and form test report.
5. the balanced system of a kind of automatic test multiphase current according to claim 4, it is characterised in that the cable is adopted
With GPIB cables, the voltage module is voltage regulator or is the module of hot-plug equipment power supply.
A kind of 6. balanced system of automatic test multiphase current according to claim 4, it is characterised in that the voltage-mode
Block is more than 6 phases.
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| CN201710915574.5A CN107782982A (en) | 2017-09-30 | 2017-09-30 | A kind of balanced method and system of automatic test multiphase current |
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| CN201710915574.5A CN107782982A (en) | 2017-09-30 | 2017-09-30 | A kind of balanced method and system of automatic test multiphase current |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683007A (en) * | 2018-11-29 | 2019-04-26 | Oppo（重庆）智能科技有限公司 | Testing current mold, system and method |
| CN110609243A (en) * | 2019-09-05 | 2019-12-24 | 广东浪潮大数据研究有限公司 | Method and system for testing CPU power supply efficiency and related components |
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| CN102565518A (en) * | 2010-12-16 | 2012-07-11 | 鸿富锦精密工业（深圳）有限公司 | Current balance test system |
| CN103812328A (en) * | 2012-11-07 | 2014-05-21 | 江苏兆能电子有限公司 | Parallel-connection current-sharing circuit for voltage converter |
| CN205353827U (en) * | 2015-12-25 | 2016-06-29 | 北京迪赛奇正科技有限公司 | Current -sharing control circuit and electrical power generating system |
| CN205725459U (en) * | 2016-06-12 | 2016-11-23 | 合肥华耀电子工业有限公司 | A kind of self-adaption switch electric power source flow equalizing circuit |
| CN206164366U (en) * | 2016-11-14 | 2017-05-10 | 广州视源电子科技股份有限公司 | Switching power supply system of flow equalizing that connects in parallel |
| CN106787725A (en) * | 2016-12-30 | 2017-05-31 | 成都芯源***有限公司 | Multiphase parallel power supply system, single-chip switch integrated circuit and current sharing method |
| CN107040125A (en) * | 2017-04-10 | 2017-08-11 | 同济大学 | A kind of switch power supply system and its current control method |
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2017
- 2017-09-30 CN CN201710915574.5A patent/CN107782982A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565518A (en) * | 2010-12-16 | 2012-07-11 | 鸿富锦精密工业（深圳）有限公司 | Current balance test system |
| CN103812328A (en) * | 2012-11-07 | 2014-05-21 | 江苏兆能电子有限公司 | Parallel-connection current-sharing circuit for voltage converter |
| CN205353827U (en) * | 2015-12-25 | 2016-06-29 | 北京迪赛奇正科技有限公司 | Current -sharing control circuit and electrical power generating system |
| CN205725459U (en) * | 2016-06-12 | 2016-11-23 | 合肥华耀电子工业有限公司 | A kind of self-adaption switch electric power source flow equalizing circuit |
| CN206164366U (en) * | 2016-11-14 | 2017-05-10 | 广州视源电子科技股份有限公司 | Switching power supply system of flow equalizing that connects in parallel |
| CN106787725A (en) * | 2016-12-30 | 2017-05-31 | 成都芯源***有限公司 | Multiphase parallel power supply system, single-chip switch integrated circuit and current sharing method |
| CN107040125A (en) * | 2017-04-10 | 2017-08-11 | 同济大学 | A kind of switch power supply system and its current control method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683007A (en) * | 2018-11-29 | 2019-04-26 | Oppo（重庆）智能科技有限公司 | Testing current mold, system and method |
| CN110609243A (en) * | 2019-09-05 | 2019-12-24 | 广东浪潮大数据研究有限公司 | Method and system for testing CPU power supply efficiency and related components |
| CN110609243B (en) * | 2019-09-05 | 2021-11-19 | 广东浪潮大数据研究有限公司 | Method and system for testing CPU power supply efficiency and related components |
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Application publication date: 20180309 |
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