CN105891732A - Power conversion efficiency test device, power conversion efficiency test method and power conversion efficiency test system - Google Patents
Power conversion efficiency test device, power conversion efficiency test method and power conversion efficiency test system Download PDFInfo
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- CN105891732A CN105891732A CN201610203789.XA CN201610203789A CN105891732A CN 105891732 A CN105891732 A CN 105891732A CN 201610203789 A CN201610203789 A CN 201610203789A CN 105891732 A CN105891732 A CN 105891732A
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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
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Abstract
The invention provides a power conversion efficiency test device, a power conversion efficiency test method and a power conversion efficiency test system. The test device is connected with a target power source, an electronic load instrument and two multimeters, and comprises an adjusting unit, a receiving unit and a conversion efficiency calculating unit, wherein the adjusting unit is used for adjusting the electronic load instrument to a target load and triggering the receiving unit, the receiving unit is used for receiving a first input voltage value of the target power source sent by a first multimeter and a first output voltage value of the target power source sent by a second multimeter and receiving a first input current and a first output current sent by the target power source when triggered by the adjusting unit, and the conversion efficiency calculating unit is used for calculating the conversion efficiency of the target power source according to the first input voltage value, the first output voltage value, the first input current and the first output current received by the receiving unit. Through the scheme, automatic power conversion efficiency test is realized.
Description
Technical field
The present invention relates to Computer Applied Technology field, the test particularly to a kind of power supply conversion efficiency fills
Put, method and system.
Background technology
Developing rapidly along with informationalized, the application of service equipment and electronic product is more and more extensive, and
Supporting equipment or the conversion efficiency of the properly functioning power supply of electronic product, will affect service equipment or electricity
The runnability of sub-product, therefore, the conversion efficiency of power supply has become the one of service equipment or electronic product
Individual test index.
At present, the test mode of power supply conversion efficiency is mainly by manual adjustment and power calibration input voltage
Value, meanwhile, artificial input voltage, output voltage, input current and the output electric current read after calibrating,
And according to input voltage, output voltage, input current and output electric current, artificial calculating Power convert rate,
The most whole test process is both needed to very important person and has participated in, and causes the test of existing this power supply conversion efficiency
Mode cannot be carried out automatic test.
Summary of the invention
Embodiments provide the test device of a kind of power supply conversion efficiency, method and system, it is achieved
Automatic test power supply conversion efficiency.
The test device of a kind of power supply conversion efficiency, respectively with target power, the Electronic Negative of peripheral hardware of peripheral hardware
Carry instrument to be connected with two circuit testers of peripheral hardware, including: regulation unit, reception unit and conversion efficiency calculate
Unit, wherein,
Described regulation unit, reaches targeted loads for regulating the electronic load instrument of described peripheral hardware, and triggers
Receive unit；
Described reception unit, for when receiving the triggering of described regulation unit, receives described peripheral hardware
First input voltage value and the second of described peripheral hardware of the target power of the described peripheral hardware that the first circuit tester sends
First output voltage values of the target power of the described peripheral hardware that circuit tester sends, and receive the mesh of described peripheral hardware
The first input current and first that mark power supply sends exports electric current；
Described conversion efficiency computing unit, for the first input voltage received according to described reception unit
Value, the first output voltage values, the first input current and the first output electric current, calculate the target of described peripheral hardware
The conversion efficiency of power supply.
Preferably, the test device of above-mentioned power supply conversion efficiency, farther include: deviation computing unit,
Judging unit and alignment unit, wherein,
Described deviation computing unit, is used for arranging target voltage values, calculates what described reception unit received
Deviation between the first input voltage value and described target voltage values；
Described judging unit, is used for arranging deviation threshold, it is judged that the deviation that described deviation computing unit calculates
Whether less than or equal to described deviation threshold, if it is, trigger described reception unit, otherwise, institute is triggered
State alignment unit；
Described reception unit, for when receiving described judging unit and triggering, receiving the of described peripheral hardware
First output voltage values of the target power of the described peripheral hardware that two circuit testers send, and receive described peripheral hardware
The first input current and first that target power sends exports electric current；Receiving touching of described alignment unit
When sending out, receive the second input voltage value of the first circuit tester transmission of described peripheral hardware after calibrating and described peripheral hardware
Second output voltage values of target power of described peripheral hardware that sends of the second circuit tester, and receive described outside
If target power send the second input current and second output electric current；
Described alignment unit, for calibrating the first input voltage value of the target power of described peripheral hardware, and touches
Send out reception unit described；
Described conversion efficiency computing unit, be further used for according to described reception unit receive second defeated
Enter magnitude of voltage, the second output voltage values, the second input current and the second output electric current, calculate described peripheral hardware
The conversion efficiency of target power.
Preferably, the test device of above-mentioned power supply conversion efficiency, with powering for described target power of peripheral hardware
DC output power be connected；
Described alignment unit, for regulating the output voltage values of the DC output power of described peripheral hardware, and touches
Send out reception unit described.
Preferably, described conversion efficiency computing unit, for according to following formula, calculate described peripheral hardware
The conversion efficiency of target power；
Wherein, θ characterizes the conversion efficiency of target power；UaCharacterize output voltage；IaCharacterize output electric current；
UbCharacterize input voltage；IbCharacterize input current.
A kind of test device utilizing any one power supply conversion efficiency above-mentioned realizes the survey of power supply conversion efficiency
Method for testing, the test device of power supply conversion efficiency respectively with target power, electronic load instrument and two general-purposes
Table is connected, and is connected with described electronic load instrument and said two circuit tester respectively by described target power,
And regulate described electronic load instrument and reach targeted loads；Also include:
The test device of power supply conversion efficiency receives the of the described target power that described first circuit tester sends
One input voltage value；
Receive the first output voltage values of the described target power that described second circuit tester sends；
Receive the first input current and the first output electric current that described target power sends；
According to described first input voltage value, described first output voltage values, described first input current and
Described first output electric current, calculates the conversion efficiency of described target power.
Preferably, said method farther includes: arrange target voltage values and deviation threshold；
After the first input voltage value of the described target power of the described first circuit tester transmission of described reception,
Farther include:
Calculate the deviation between described first input voltage value and described target voltage values；
Judge that whether described deviation is less than or equal to described deviation threshold；
If it is, perform the first defeated of the described target power that described second circuit tester of described reception sends
Go out magnitude of voltage；Receive the first input current and the first output electric current that described target power sends；According to institute
State the first input voltage value, described first output voltage values, described first input current and described first defeated
Go out electric current, calculate the conversion efficiency of described target power；
Otherwise, calibrate described first input voltage value, and described first circuit tester sends after receiving calibration
Second input voltage value and described second circuit tester send the second output voltage values and described target power
Send the second input current and second output electric current, according to described second input voltage value, described second
Output voltage values, described second input current and described second output electric current, calculate described target power
Conversion efficiency.
Preferably, described target power is Switching Power Supply；
Said method farther includes: be that described Switching Power Supply is powered by the DC output power of peripheral hardware；
Described first input voltage value of described calibration, including: regulate the DC output power of described peripheral hardware
Output voltage values, determines that the input voltage value of described Switching Power Supply is the second input voltage value.
Preferably, the conversion efficiency of the described target power of described calculating, including:
According to following formula, calculate the conversion efficiency of the target power of described peripheral hardware；
Wherein, θ characterizes the conversion efficiency of target power；UaCharacterize output voltage；IaCharacterize output electric current；
UbCharacterize input voltage；IbCharacterize input current.
Preferably, described it is connected with target power, electronic load instrument and two circuit testers, including: pass through
GPIB line is connected with two circuit testers of the target power of peripheral hardware, the electronic load instrument of peripheral hardware and peripheral hardware.
A kind of test system of power supply conversion efficiency, including: the survey of any one power supply conversion efficiency above-mentioned
Electricity testing device, target power, electronic load instrument and two circuit testers, wherein,
Described target power, is connected with the test device of described power supply conversion efficiency, for sending self
Input current and output electric current give the test device of described power supply conversion efficiency；
Described electronic load instrument, is connected with test device and the described target power of described power supply conversion efficiency,
For receiving the regulation of the test device of described power supply conversion efficiency, reach targeted loads, and be described mesh
Mark power supply provides described targeted loads；
Said two circuit tester, respectively with test device and the described target power of described power supply conversion efficiency
Being connected, wherein, the first circuit tester, for measuring the input voltage value of described target power, and by described
Input voltage value is sent to the test device of described power supply conversion efficiency；Second circuit tester, is used for measuring institute
State the output voltage values of target power, and described output voltage values is sent to described power supply conversion efficiency
Test device.
Preferably, described target power is Switching Power Supply, and said system farther includes: direct current output electricity
Source, wherein,
Described DC output power, by the first input test point of described Switching Power Supply and described switch electricity
Source is connected, for powering for described Switching Power Supply；
Described Switching Power Supply, is connected with described first circuit tester by the second input test point of self, and
By self first output test point be connected with described electronic load instrument, by second output test point and
Described second circuit tester is connected, for receiving the power supply of described DC output power.
Preferably, the test device of described power supply conversion efficiency by GPIB line and described target power,
Described electronic load instrument is connected with said two circuit tester.
Embodiments provide the test device of a kind of power supply conversion efficiency, method and system, this electricity
Source conversion efficiency test device respectively with the target power of peripheral hardware, the electronic load instrument of peripheral hardware and peripheral hardware
Two circuit testers are connected, and reach targeted loads by the electronic load instrument of regulation unit regulation peripheral hardware, and touch
Transmission/reception unit；When receiving the triggering of regulation unit, receive the 10000th of peripheral hardware the by receiving unit
With outside the first input voltage value of the target power of the peripheral hardware of table transmission and the second circuit tester transmission of peripheral hardware
If the first output voltage values of target power, and the first input electricity that the target power receiving peripheral hardware sends
Stream and the first output electric current；According to receiving the first input voltage value, the first output voltage that unit receives
Value, the first input current and the first output electric current, calculate described peripheral hardware by conversion efficiency computing unit
The test device of the power supply conversion efficiency that the conversion efficiency of target power, the i.e. embodiment of the present invention provide,
Carry out in power supply conversion efficiency test process, electronic load instrument can not only be automatically adjusted by regulation unit
Load, and can the input voltage of automatic reception target power, output voltage, input current and defeated
Go out electric current, automatically calculate the conversion efficiency of target power, it is not necessary to artificial participation, it is thereby achieved that from
Dynamicization test power supply conversion efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is some embodiments of the present invention, for those of ordinary skill in the art, not
On the premise of paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that the structure of the test device of a kind of power supply conversion efficiency that one embodiment of the invention provides is shown
It is intended to；
Fig. 2 is the structure of the test device of a kind of power supply conversion efficiency that another embodiment of the present invention provides
Schematic diagram；
Fig. 3 is the flow chart of the method for testing of a kind of power supply conversion efficiency that one embodiment of the invention provides；
Fig. 4 is that the structure of the test system of a kind of power supply conversion efficiency that one embodiment of the invention provides is shown
It is intended to；
Fig. 5 is the flow process of the method for testing of a kind of power supply conversion efficiency that another embodiment of the present invention provides
Figure；
Fig. 6 is the structure of the test system of a kind of power supply conversion efficiency that another embodiment of the present invention provides
Schematic diagram.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with this
Accompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,
Obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments, based on
Embodiment in the present invention, those of ordinary skill in the art are institute on the premise of not making creative work
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, the embodiment of the present invention provide a kind of power supply conversion efficiency test device, respectively with
The target power of peripheral hardware, the electronic load instrument of peripheral hardware are connected with two circuit testers of peripheral hardware, including: regulation
Unit 101, reception unit 102 and conversion efficiency computing unit 103, wherein,
Regulation unit 101, reaches targeted loads for regulating the electronic load instrument of peripheral hardware, and triggers reception
Unit；
Receive unit 102, for when receiving the triggering of regulation unit 101, receiving the first of peripheral hardware
First input voltage value of the target power of the peripheral hardware that circuit tester sends and the second circuit tester of peripheral hardware send
First output voltage values of the target power of peripheral hardware, and the first input that the target power receiving peripheral hardware sends
Electric current and the first output electric current；
Conversion efficiency computing unit 103, for according to receiving the first input voltage that unit 102 receives
Value, the first output voltage values, the first input current and the first output electric current, calculate the target power of peripheral hardware
Conversion efficiency.
In the embodiment of the present invention shown in Fig. 1, the test device of power supply conversion efficiency respectively with the mesh of peripheral hardware
Mark power supply, the electronic load instrument of peripheral hardware are connected with two circuit testers of peripheral hardware, outside being regulated by regulation unit
If electronic load instrument reach targeted loads, and tactile transmission/reception unit；In the triggering receiving regulation unit
Time, by receiving the first input of the target power of the peripheral hardware that the first circuit tester of unit reception peripheral hardware sends
First output voltage values of the target power of the peripheral hardware that the second circuit tester of magnitude of voltage and peripheral hardware sends, and connect
Receive the first input current and the first output electric current of the target power transmission of peripheral hardware；Receive according to receiving unit
The first input voltage value, the first output voltage values, the first input current and the first output electric current arrived is logical
Cross the conversion efficiency that conversion efficiency computing unit calculates the target power of described peripheral hardware, the i.e. embodiment of the present invention
The test device of the power supply conversion efficiency provided, in carrying out power supply conversion efficiency test process, can not only
Enough loads being automatically adjusted electronic load instrument by regulation unit, and can automatic reception target power
Input voltage, output voltage, input current and output electric current, calculate the conversion efficiency of target power automatically,
Without artificial participation, it is thereby achieved that automatic test power supply conversion efficiency.
As in figure 2 it is shown, in an alternative embodiment of the invention, the test device of above-mentioned power supply conversion efficiency,
Farther include: deviation computing unit 201, judging unit 202 and alignment unit 203, wherein,
Deviation computing unit 201, is used for arranging target voltage values, calculates and receives what unit 102 received
Deviation between the first input voltage value and target voltage values；
Judging unit 202, is used for arranging deviation threshold, it is judged that the deviation that deviation computing unit 201 calculates
Whether less than or equal to deviation threshold, if it is, touch transmission/reception unit 102, otherwise, trigger calibration single
Unit 203；
Receive unit 102, for reception state judging unit 202 trigger time, receive peripheral hardware the 20000th
With first output voltage values of target power of the peripheral hardware that table sends, and the target power receiving peripheral hardware sends
The first input current and first output electric current；When receiving the triggering of alignment unit 203, receive school
After standard peripheral hardware first circuit tester send the second input voltage value and peripheral hardware second circuit tester send outside
If the second output voltage values of target power, and the second input electricity that the target power receiving peripheral hardware sends
Stream and the second output electric current；
Alignment unit 203, for calibrating the first input voltage value of the target power of peripheral hardware, and triggering connects
Receive unit 102；
Conversion efficiency computing unit 103, is further used for second defeated according to receive that unit 102 receives
Enter magnitude of voltage, the second output voltage values, the second input current and the second output electric current, calculate the mesh of peripheral hardware
The conversion efficiency of mark power supply.
In an alternative embodiment of the invention, the test device of above-mentioned power supply conversion efficiency, with peripheral hardware for institute
State the DC output power that target power powers to be connected；
Alignment unit 203, for regulating the output voltage values of the DC output power of peripheral hardware, and triggering connects
Receive unit 102.
In still another embodiment of the process, conversion efficiency computing unit 103, it is used for according to following formula,
Calculate the conversion efficiency of the target power of peripheral hardware；
Wherein, θ characterizes the conversion efficiency of target power；UaCharacterize output voltage；IaCharacterize output electric current；
UbCharacterize input voltage；IbCharacterize input current.
In still another embodiment of the process, the test device of above-mentioned power supply conversion efficiency, farther include:
Fill in unit (not shown), for by calculated for conversion efficiency computing unit 103 conversion efficiency
Fill in into corresponding form, and store this form.
The contents such as the information between each unit in said apparatus is mutual, execution process, due to the present invention
Embodiment of the method is based on same design, and particular content can be found in chatting in following the inventive method embodiment
Stating, here is omitted.
Fill as it is shown on figure 3, embodiments provide a kind of test utilizing above-mentioned power supply conversion efficiency
Putting the method for testing realizing power supply conversion efficiency, the method may comprise steps of:
Step 301: the test device of power supply conversion efficiency respectively with target power, electronic load instrument and two
Individual circuit tester is connected；
Step 302: target power is connected with electronic load instrument and two circuit testers respectively, and regulates electricity
Sub-load meter reaches targeted loads；
Step 303: receive the first input voltage value of the target power that the first circuit tester sends；
Step 304: receive the first output voltage values of the target power that the second circuit tester sends；
Step 305: receive the first input current and the first output electric current that target power sends；
Step 306: according to the first input voltage value, the first output voltage values, the first input current and
One output electric current, calculates the conversion efficiency of target power.
In an embodiment of the invention, said method farther includes: arrange target voltage values and deviation
Threshold value；After step 303, before step 304, farther include: calculate the first input voltage
Deviation between value and target voltage values；Whether judgment bias is less than or equal to deviation threshold；If it is, hold
Row step 304 is to step 306；Otherwise calibrate the first input voltage value, and receive the first general-purpose after calibration
Table send the second input voltage value and the second circuit tester send the second output voltage values and target power
The second input current sent and the second output electric current, according to the second input voltage value, the second output voltage
Value, the second input current and described second output electric current, calculate the conversion efficiency of target power, due to mesh
Mark power supply can be plurality of devices offer electric current, and distinct device required voltage difference, the present invention implements
Example, according to the actual application of target power, arranges target voltage values for target power, makes the input of target power
Magnitude of voltage is closer to target voltage values, so that the loss that target power is applied closer to reality, thus carry
The accuracy of high target power conversion efficiency test.
In an embodiment of the invention, above-mentioned target power is Switching Power Supply；Said method wraps further
Include: be that Switching Power Supply is powered by the DC output power of peripheral hardware；Calibrate the concrete of the first input voltage value
Embodiment, including: the output voltage values of the DC output power of regulation peripheral hardware, determine target power
Input voltage value is the second input voltage value, and owing to Switching Power Supply self is not charged, it is by peripheral hardware
DC output power is its power supply, then by the output voltage values of the DC output power of regulation peripheral hardware,
The input voltage value of calibration switch power supply can be realized.
In an embodiment of the invention, the detailed description of the invention of the conversion efficiency of above-mentioned calculating target power,
Including: according to following formula, calculate the conversion efficiency of the target power of peripheral hardware；
Wherein, θ characterizes the conversion efficiency of target power；UaCharacterize output voltage；IaCharacterize output electric current；
UbCharacterize input voltage；IbCharacterize input current, it is achieved that automatically calculate power supply conversion efficiency.
In an embodiment of the invention, the detailed description of the invention of step 301, including: pass through GPIB
Line is connected with two circuit testers of the target power of peripheral hardware, the electronic load instrument of peripheral hardware and peripheral hardware, it is achieved that
Two circuit testers of the target power of peripheral hardware, the electronic load instrument of peripheral hardware and peripheral hardware and power supply conversion efficiency
Communication between test device, it is ensured that automatically tests smoothly completes.
As shown in Figure 4, the embodiment of the present invention provides the test system of a kind of power supply conversion efficiency, including:
The test device 401 of any one power supply conversion efficiency above-mentioned, target power 402, electronic load instrument 403
With two circuit testers 404, wherein,
Target power 402, is connected with the test device 401 of power supply conversion efficiency, for sending self
Input current and output electric current are to the test device 401 of power supply conversion efficiency；
Electronic load instrument 403, is connected with test device 401 and the target power 402 of power supply conversion efficiency,
For receiving the regulation of the test device 401 of power supply conversion efficiency, reach targeted loads, and be target electricity
Source 402 provides targeted loads；
Two circuit testers 404, respectively with test device 401 and the target power 402 of power supply conversion efficiency
It is connected, wherein, the first circuit tester 4041, for measuring the input voltage value of target power 402, and will
Input voltage value is sent to the test device 401 of power supply conversion efficiency；Second circuit tester 4042, is used for surveying
The output voltage values of amount target power 402, and output voltage values is sent to the test of power supply conversion efficiency
Device 401.
In an alternative embodiment of the invention, target power 402 is Switching Power Supply, farther includes: direct current
Out-put supply (not shown), wherein,
DC output power, is connected with Switching Power Supply by the first input test point of Switching Power Supply, is used for
Power for Switching Power Supply；
Switching Power Supply 402, is connected with the first circuit tester 4041 by the second input test o'clock of self, and
By self first output test point be connected with electronic load instrument 403, by second output test point and
Second circuit tester 4042 is connected, for receiving the power supply of DC output power.
In still another embodiment of the process, the test device 401 of power supply conversion efficiency by GPIB line with
Target power 402, electronic load instrument 403 are connected with two circuit testers 404.
In order to make the present invention utilize the test device of power supply conversion efficiency to realize the test side of power supply conversion efficiency
The detailed process of method is clearer, the present invention by test Switching Power Supply conversion efficiency as a example by, i.e. target power
For Switching Power Supply, in conjunction with the system diagram shown in Fig. 6, illustrate, as it is shown in figure 5, the method can
To comprise the following steps:
Step 501: the test device of power supply conversion efficiency respectively with Switching Power Supply, electronic load instrument, two
Individual circuit tester is connected with DC output power；
Due to advantages such as the relatively conventional power-efficient of Switching Power Supply are high, volume is little, lightweight, and at high frequency
Under more reliable so that Switching Power Supply is widely used in various equipment such as server, mobile phone etc., at present,
Mainly electric capacity, resistance, inductance, chip etc. are welded on board composition.In Switching Power Supply, it mainly connects
Receive the electricity of DC output power, and be powered for each element connected, and Switching Power Supply
Conversion efficiency will directly affect the energy consumption of Switching Power Supply, as a result, it is often necessary to change Switching Power Supply
Efficiency is tested, and to characterize the performance of Switching Power Supply, this step is that the test making conversion efficiency realizes certainly
The basis of dynamicization, i.e. by the connection of this step, it is possible to achieve the Power convert that the embodiment of the present invention provides
The test device of efficiency is to Switching Power Supply, electronic load instrument, two circuit testers and the control of DC output power
System.
Step 502: by Switching Power Supply respectively with electronic load instrument, two circuit testers and DC output power
It is connected, and regulates electronic load instrument and reach targeted loads；
The connection of step 501 and step 502 as shown in Figure 6, the test device 601 of power supply conversion efficiency
Exported with Switching Power Supply 602,603, two circuit testers 604 of electronic load instrument and direct current by GPIB line
Power supply 605 is connected, and Switching Power Supply 602 respectively with 603, two circuit testers 604 of electronic load instrument and
The detailed process that DC output power 605 is connected by connecting line: determine two in Switching Power Supply 602
Input test point and two output test points, be designated as the first input test point 6021, second respectively and input survey
Pilot 6022, first exports test point 6023 and the second output test point 6024；This first input test
Point 6021 is identical with the second input test point 6022, the first output test point 6023 and the second output test
Point 6024 is identical, respectively DC output power 605 is connected to first defeated by the way of connecting line welds
Enter test point the 6021, first circuit tester 6041 and be connected to the second input test point 6022, electronic load instrument
603 are connected to first output test point the 6023, second circuit tester 6042 is connected to the second output test point
6024, form the test system of Switching Power Supply conversion efficiency, can be by the test device of power supply conversion efficiency
601 regulation electronic load instrument 603 reach targeted loads, and the big I of this targeted loads regulation is according to switch
Power supply is actual should be used for fixed, with ensure Switching Power Supply test process power supply state closer to actual power
State.
Step 503: target voltage values and deviation threshold are set；
Such as: Switching Power Supply apply in the server, power for server element and need 12V voltage, that
, it is 12V that this step can arrange the target voltage of Switching Power Supply, due to regulation voltage course in, very
It is difficult to ensure that the input voltage of card Switching Power Supply is consistent with target voltage, by arranging deviation threshold such as deviation threshold
Be 0.3% so that the deviation between input voltage and the target voltage of Switching Power Supply in the range of 0.3%,
I.e. it is believed that input voltage reaches target voltage.
Step 504: be that Switching Power Supply is powered by DC output power；
As shown in Figure 6, DC output power 605 is supplied for Switching Power Supply by the first input test point 6021
Electricity, now the first circuit tester 6041 can measure the input voltage of Switching Power Supply 602, discounting for even
The electrical loss of wiring, the input voltage of this Switching Power Supply 602 and DC output power 605 is defeated in theory
Go out voltage consistent.
Step 505: receive the first input voltage value of the Switching Power Supply that the first circuit tester sends；
As shown in Figure 6, the first circuit tester 6041 is testing out switch by the second input test point 6022
During the first input voltage value of power supply 602, this first input voltage value is sent to power supply conversion efficiency
Test device 601, it is to avoid the process of artificial reading.
Step 506: calculate the deviation between the first input voltage value and target voltage values；
The computing formula of the process of this calculating deviation:
Wherein, α characterizes deviation；U1Characterize the first magnitude of voltage；U2Characterize target voltage values.
Step 507: whether judgment bias is less than or equal to deviation threshold, if it is, perform step 508；
Otherwise, step 511 is performed；
Such as: the deviation threshold arranged in above-mentioned steps 503 is 0.3%, then, this step is mainly sentenced
Whether disconnected α is less than or equal to 0.3%, if it is, illustrate that this first magnitude of voltage is consistent with target voltage values,
Perform step 508 to step 510；Otherwise, illustrate that this first magnitude of voltage is inconsistent with target voltage values,
Then perform step 511 to step 514.
Step 508: receive the first output voltage values of the Switching Power Supply that the second circuit tester sends；
As shown in Figure 6, the second circuit tester 6042 is testing out switch by the second output test point 6024
During the first output voltage values of power supply 602, this first output voltage values is sent to power supply conversion efficiency
Test device 601, it is to avoid the process of artificial reading.
Step 509: receive the first input current and the first output electric current that Switching Power Supply sends；
Owing to Switching Power Supply itself has the function of display electric current, changed by the Switching Power Supply shown in Fig. 6
The test system of efficiency, can make the test device 601 of power supply conversion efficiency obtain Switching Power Supply 602 and show
The first input current shown and the first output electric current.
Step 510: according to the first input voltage value, the first output voltage values, the first input current and
One output electric current, calculates the conversion efficiency of Switching Power Supply, and performs step 515；
Step 511: the output voltage values of the DC output power of regulation peripheral hardware, calibrates the first input voltage
Value；
Already mentioned above, it is that Switching Power Supply is powered by DC output power, and direct current in theory
The output voltage values of out-put supply is consistent with the input voltage of Switching Power Supply, then, opening shown in Fig. 6
Closing in the test system of power supply conversion efficiency, the test device 601 of power supply conversion efficiency is by GPIB line
The output voltage values of regulation DC output power 605, thus reach calibration switch power supply 602 input voltage
The purpose of value.
Step 512: receive the second input voltage value and the second circuit tester that after calibrating, the first circuit tester sends
The second output voltage values sent；
As shown in Figure 6, after calibration, the test device 601 of power supply conversion efficiency can receive school equally
The second input voltage value and the second of the transmission of the second circuit tester 6042 that after standard, the first circuit tester 6041 sends
Output voltage values.
Step 513: receive the second input current and the second output electric current that Switching Power Supply sends；
This second input current and second output electric current respectively with calibration after the second input voltage value and second
Output voltage values is corresponding.
Step 514: according to the second input voltage value, the second output voltage values, the second input current and
Two output electric currents, calculate the conversion efficiency of Switching Power Supply；
Step 510 and step 514 mainly according to following formula, calculate the conversion efficiency of Switching Power Supply；
Wherein, θ characterizes the conversion efficiency of target power；UaCharacterize output voltage；IaCharacterize output electric current；
UbCharacterize input voltage；IbCharacterize input current；
For step 510, UaCharacterize the first output voltage；IaCharacterize the first output electric current；UbTable
Levy the first input voltage；IbCharacterize the first input current；
For step 514, UaCharacterize the second output voltage；IaCharacterize the second output electric current；UbTable
Levy the second input voltage；IbCharacterize the second input current.
Step 515: the conversion efficiency of Switching Power Supply is filled in form.
According to such scheme, the test device of the power supply conversion efficiency that various embodiments of the present invention are provided,
Method and system, at least has the advantages that
1. the test device of the power supply conversion efficiency that the embodiment of the present invention provides respectively with the target power of peripheral hardware,
The electronic load instrument of peripheral hardware is connected with two circuit testers of peripheral hardware, by the electronics of regulation unit regulation peripheral hardware
Load meter reaches targeted loads, and tactile transmission/reception unit；When receiving the triggering of regulation unit, pass through
Receive unit receive peripheral hardware first circuit tester send peripheral hardware target power the first input voltage value and
First output voltage values of the target power of the peripheral hardware that the second circuit tester of peripheral hardware sends, and receive peripheral hardware
The first input current and first that target power sends exports electric current；First received according to reception unit
Input voltage value, the first output voltage values, the first input current and the first output electric current, imitated by conversion
Rate computing unit calculates the electricity that the conversion efficiency of the target power of described peripheral hardware, the i.e. embodiment of the present invention provide
The test device of source conversion efficiency, in carrying out power supply conversion efficiency test process, can not only be by adjusting
Joint unit is automatically adjusted the load of electronic load instrument, and can automatic reception target power input voltage,
Output voltage, input current and output electric current, calculate the conversion efficiency of target power automatically, it is not necessary to artificial
Participation, it is thereby achieved that automatic test power supply conversion efficiency.
2. the test device of the power supply conversion efficiency provided due to the embodiment of the present invention can obtain power supply automatically
Input voltage, input current, output voltage and output electric current, then automatically according to input voltage, defeated
Enter electric current, output voltage and output electric current, calculate the conversion efficiency of power supply, be i.e. mutual by between information
Realize calculating the conversion efficiency of power supply, compared with artificial participation, the mutual speed of information faster, therefore,
The test device of the power supply conversion efficiency that the embodiment of the present invention provides is effectively improved power supply conversion efficiency
Test rate.
3. can be that plurality of devices provides electric current due to target power, and distinct device required voltage difference,
The embodiment of the present invention, according to the actual application of target power, arranges target voltage values for target power, makes target
The input voltage value of power supply is closer to target voltage values, so that the damage that target power is applied closer to reality
Consumption, thus improve the accuracy of target power conversion efficiency test.
4. the embodiment of the present invention provide power supply conversion efficiency test device by with direct-current input power supplying and
Electronic load instrument is connected, it is achieved that automatization's regulation direct-current input power supplying and electronic load instrument, protects further
Demonstrate,prove the automatization of test process, and improve testing efficiency.
It should be noted that in this article, the relational terms of such as first and second etc be used merely to by
One entity or operation separate with another entity or operating space, and not necessarily require or imply this
Relation or the order of any this reality is there is between a little entities or operation.And, term " includes ",
" comprise " or its any other variant is intended to comprising of nonexcludability, so that include that one is
The process of row key element, method, article or equipment not only include those key elements, but also include the brightest
Other key elements really listed, or also include intrinsic for this process, method, article or equipment
Key element.In the case of there is no more restriction, statement " include one " and limit
Key element, it is not excluded that there is also another in including the process of described key element, method, article or equipment
Outer same factor.
One of ordinary skill in the art will appreciate that: realize all or part of step of said method embodiment
Can be completed by the hardware that programmed instruction is relevant, aforesaid program can be stored in embodied on computer readable
Storage medium in, this program upon execution, performs to include the step of said method embodiment；And it is aforementioned
Storage medium include: various Jie that can store program code such as ROM, RAM, magnetic disc or CD
In matter.
Last it should be understood that the foregoing is only presently preferred embodiments of the present invention, it is merely to illustrate this
The technical scheme of invention, is not intended to limit protection scope of the present invention.All spirit in the present invention and former
Any modification, equivalent substitution and improvement etc. done within then, are all contained in protection scope of the present invention.
Claims (10)
1. the test device of a power supply conversion efficiency, it is characterised in that respectively with the target power of peripheral hardware,
The electronic load instrument of peripheral hardware is connected with two circuit testers of peripheral hardware, including: regulation unit, receive unit and
Conversion efficiency computing unit, wherein,
Described regulation unit, reaches targeted loads for regulating the electronic load instrument of described peripheral hardware, and triggers
Receive unit；
Described reception unit, for when receiving the triggering of described regulation unit, receives described peripheral hardware
First input voltage value and the second of described peripheral hardware of the target power of the described peripheral hardware that the first circuit tester sends
First output voltage values of the target power of the described peripheral hardware that circuit tester sends, and receive the mesh of described peripheral hardware
The first input current and first that mark power supply sends exports electric current；
Described conversion efficiency computing unit, for the first input voltage received according to described reception unit
Value, the first output voltage values, the first input current and the first output electric current, calculate the target of described peripheral hardware
The conversion efficiency of power supply.
The test device of power supply conversion efficiency the most according to claim 1, it is characterised in that enter one
Step includes: deviation computing unit, judging unit and alignment unit, wherein,
Described deviation computing unit, is used for arranging target voltage values, calculates what described reception unit received
Deviation between the first input voltage value and described target voltage values；
Described judging unit, is used for arranging deviation threshold, it is judged that the deviation that described deviation computing unit calculates
Whether less than or equal to described deviation threshold, if it is, trigger described reception unit, otherwise, institute is triggered
State alignment unit；
Described reception unit, for when receiving described judging unit and triggering, receiving the of described peripheral hardware
First output voltage values of the target power of the described peripheral hardware that two circuit testers send, and receive described peripheral hardware
The first input current and first that target power sends exports electric current；Receiving touching of described alignment unit
When sending out, receive the second input voltage value of the first circuit tester transmission of described peripheral hardware after calibrating and described peripheral hardware
Second output voltage values of target power of described peripheral hardware that sends of the second circuit tester, and receive described outside
If target power send the second input current and second output electric current；
Described alignment unit, for calibrating the first input voltage value of the target power of described peripheral hardware, and touches
Send out reception unit described；
Described conversion efficiency computing unit, be further used for according to described reception unit receive second defeated
Enter magnitude of voltage, the second output voltage values, the second input current and the second output electric current, calculate described peripheral hardware
The conversion efficiency of target power.
The test device of power supply conversion efficiency the most according to claim 2, it is characterised in that with outward
If the DC output power powered for described target power be connected；
Described alignment unit, for regulating the output voltage values of the DC output power of described peripheral hardware, and touches
Send out reception unit described.
The test device of power supply conversion efficiency the most according to claim 1 and 2, it is characterised in that
Described conversion efficiency computing unit, for according to following formula, calculates the target power of described peripheral hardware
Conversion efficiency；
Wherein, θ characterizes the conversion efficiency of target power；UaCharacterize output voltage；IaCharacterize output electric current；
UbCharacterize input voltage；IbCharacterize input current.
5. the test device utilizing the arbitrary described power supply conversion efficiency of claim 1 to 4 realizes electricity
The method of testing of source conversion efficiency, it is characterised in that the test device of power supply conversion efficiency respectively with target
Power supply, electronic load instrument and two circuit testers are connected, and by described target power respectively with described Electronic Negative
Carry instrument and said two circuit tester to be connected, and regulate described electronic load instrument and reach targeted loads；Also include:
The test device of power supply conversion efficiency receives the of the described target power that described first circuit tester sends
One input voltage value；
Receive the first output voltage values of the described target power that described second circuit tester sends；
Receive the first input current and the first output electric current that described target power sends；
According to described first input voltage value, described first output voltage values, described first input current and
Described first output electric current, calculates the conversion efficiency of described target power.
Method the most according to claim 5, it is characterised in that farther include: target electricity is set
Pressure value and deviation threshold；
After the first input voltage value of the described target power of the described first circuit tester transmission of described reception,
Farther include:
Calculate the deviation between described first input voltage value and described target voltage values；
Judge that whether described deviation is less than or equal to described deviation threshold；
If it is, perform the first defeated of the described target power that described second circuit tester of described reception sends
Go out magnitude of voltage；Receive the first input current and the first output electric current that described target power sends；According to institute
State the first input voltage value, described first output voltage values, described first input current and described first defeated
Go out electric current, calculate the conversion efficiency of described target power；
Otherwise, calibrate described first input voltage value, and described first circuit tester sends after receiving calibration
Second input voltage value and described second circuit tester send the second output voltage values and described target power
Send the second input current and second output electric current, according to described second input voltage value, described second
Output voltage values, described second input current and described second output electric current, calculate described target power
Conversion efficiency.
Method the most according to claim 6, it is characterised in that described target power is Switching Power Supply；
Farther include: be that described Switching Power Supply is powered by the DC output power of peripheral hardware；
Described first input voltage value of described calibration, including: regulate the DC output power of described peripheral hardware
Output voltage values, determines that the input voltage value of described Switching Power Supply is the second input voltage value.
8. according to the method described in claim 5 or 6, it is characterised in that
The conversion efficiency of the described target power of described calculating, including:
According to following formula, calculate the conversion efficiency of the target power of described peripheral hardware；
Wherein, θ characterizes the conversion efficiency of target power；UaCharacterize output voltage；IaCharacterize output electric current；
UbCharacterize input voltage；IbCharacterize input current；
And/or,
Described it is connected with target power, electronic load instrument and two circuit testers, including: by GPIB line
It is connected with two circuit testers of the target power of peripheral hardware, the electronic load instrument of peripheral hardware and peripheral hardware.
9. the test system of a power supply conversion efficiency, it is characterised in that including: Claims 1-4
Arbitrary described the test device of power supply conversion efficiency, target power, electronic load instrument and two circuit testers,
Wherein,
Described target power, is connected with the test device of described power supply conversion efficiency, for sending self
Input current and output electric current give the test device of described power supply conversion efficiency；
Described electronic load instrument, is connected with test device and the described target power of described power supply conversion efficiency,
For receiving the regulation of the test device of described power supply conversion efficiency, reach targeted loads, and be described mesh
Mark power supply provides described targeted loads；
Said two circuit tester, respectively with test device and the described target power of described power supply conversion efficiency
Being connected, wherein, the first circuit tester, for measuring the input voltage value of described target power, and by described
Input voltage value is sent to the test device of described power supply conversion efficiency；Second circuit tester, is used for measuring institute
State the output voltage values of target power, and described output voltage values is sent to described power supply conversion efficiency
Test device.
System the most according to claim 9, it is characterised in that
Described target power is Switching Power Supply, farther includes: DC output power, wherein,
Described DC output power, by the first input test point of described Switching Power Supply and described switch electricity
Source is connected, for powering for described Switching Power Supply；
Described Switching Power Supply, is connected with described first circuit tester by the second input test point of self, and
By self first output test point be connected with described electronic load instrument, by second output test point and
Described second circuit tester is connected, for receiving the power supply of described DC output power；
And/or,
The test device of described power supply conversion efficiency is by GPIB line and described target power, described electronics
Load meter is connected with said two circuit tester.
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| CN201610203789.XA CN105891732A (en) | 2016-04-01 | 2016-04-01 | Power conversion efficiency test device, power conversion efficiency test method and power conversion efficiency test system |
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| CN201610203789.XA CN105891732A (en) | 2016-04-01 | 2016-04-01 | Power conversion efficiency test device, power conversion efficiency test method and power conversion efficiency test system |
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| CN106353696A (en) * | 2016-11-02 | 2017-01-25 | 郑州云海信息技术有限公司 | Efficiency testing system and method of switching power supply |
| CN108333531A (en) * | 2018-01-26 | 2018-07-27 | 郑州云海信息技术有限公司 | A kind of multiphase switch power source efficiency debugging apparatus, method and system |
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| CN101634689A (en) * | 2008-07-21 | 2010-01-27 | 环隆电气股份有限公司 | System and method for testing power supply properties |
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| CN106353696A (en) * | 2016-11-02 | 2017-01-25 | 郑州云海信息技术有限公司 | Efficiency testing system and method of switching power supply |
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