CN106569117A - Testing method and testing apparatus, control method and control system - Google Patents
Testing method and testing apparatus, control method and control system Download PDFInfo
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- CN106569117A CN106569117A CN201510646697.4A CN201510646697A CN106569117A CN 106569117 A CN106569117 A CN 106569117A CN 201510646697 A CN201510646697 A CN 201510646697A CN 106569117 A CN106569117 A CN 106569117A
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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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
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Abstract
The invention provides a testing apparatus and method and a control system and method. The testing apparatus adjusts a grid voltage of a power amplifier to change a drain current of the power amplifier; when a practical drain current matches a target drain current, the testing apparatus stops adjusting of the grid voltage and starts performance testing on the power amplifier; after performance testing is completed under the target drain current, the testing apparatus adjusts the grid voltage of the power amplifier continuously and thus performance testing of a power amplifier corresponding to a next target drain current is carried out until performance testing of all target drain currents is completed, so that the testing apparatus completes performance testing of the power amplifier in different states automatically. Therefore, the manpower can be saved; the testing efficiency and accuracy can be guaranteed; the resources can be saved effectively; and the efficiency can be improved.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of method of testing, test device, control method and control
System processed.
Background technology
With the development of microwave communication techniques, big bandwidth, the signal of high peak-to-average power ratio are widely used in microwave-based
In band, this is just to the power amplifier of microwave transmitter using proposing very high requirement：First have to meet
Maximum transmission power required by high peak-to-average power ratio, while the signal to noise ratio that meet big bandwidth requirement is required.
Power amplifier is operated in different application scenarios needs different voltage and current configurations, and gives birth at present
The Typical Disposition that product producer is given is provided to obtain peak power, have ignored other factors to power amplifier
Impact.Therefore, in order to find the best operating point that can rationally utilize, downstream producer needs manually
Mode traversal test is carried out to the electrical property of the voltage x current working condition power amplifier of various combination, test knot
Find in fruit data, to make the normal use of whole machine as far as possible during, find suitable in optimization trend curve
Power amplifier parameter, to reach linear and power consumption the optimum state of whole machine.But adopt is carried out manually to power amplifier
Test has that high human cost, efficiency and accuracy are low.
The content of the invention
The main technical problem to be solved in the present invention is to provide a kind of method of testing, test device, controlling party
Method and control system, solve to be adopted in prior art the test that power amplifier carries out different conditions is deposited manually
In the problem that human cost is high, efficiency and accuracy are low.
To solve above-mentioned technical problem, the present invention provides a kind of test device, including：Control module and property
Can parametric testing module；
The control module is used to obtain current target drain current I to be tested of power amplifier, and control is described
The grid voltage of power amplifier makes the actual drain current I of the power amplifier0With target drain electrode electricity
Stream I matchings, and send test notice to the performance parameter test module；And in performance ginseng
Number test module obtains next target drain current I of the power amplifier after being completed, until having obtained institute
There is target drain current I；
The performance parameter test module is used to notify that the performance to the power amplifier is joined according to the test
Number is tested.
Further, the actual drain current I of the power amplifier0Match with target drain current I
For：The actual drain current I0It is with the target drain current I relation：I-ΔI1≤I0≤I+ΔI2,
The Δ I1With Δ I2It is the electric current Dynamic gene more than or equal to 0.
Further, it is described to be leaked according to target drain current I and reality also including voltage transformation module
Electrode current I0Adjusting the grid voltage of the power amplifier includes：The control module is leaked according to the target
Electrode current I and actual drain current I0Input grid adjusts voltage to the voltage transformation module, the voltage
The grid is adjusted and be input into the power amplifier after voltage conversion by modular converter.
Further, it is described according to target drain current I and actual drain current I0Adjust the power
The grid voltage of amplifier also includes：The control module is according to target drain current I and the reality
Drain current I0Between relation adjust the grid voltage, the then described actual drain electrode electricity after detection adjustment
Stream I0Whether match with target drain current I, if so, then stop the adjustment grid voltage；If it is not,
Then continue to adjust the grid voltage, until the actual drain current I0With target drain current I
Match somebody with somebody.
Further, also including current detection module, the current detection module is used to detect that the power is put
The actual drain current I of big device0And it is sent to the control module.
Further, also including statistical module, the statistical module is used to obtaining and storing the target drain electrode
Corresponding relation between electric current I and the performance parameter.
Further, also including temperature detecting module, the temperature detecting module is used for detection all described
Ambient temperature under target drain current I residing for the power amplifier, and it is sent to the control module；
The control module is additionally operable to the ambient temperature be sent to the statistical module；The statistical module is also used
In the correspondence storage ambient temperature and target drain current I.
Further, the performance parameter test module includes audiofrequency spectrometer submodule and energy meter submodule, institute
Performance parameter is stated including linear index and saturation output power, the audiofrequency spectrometer submodule is used to obtain the line
Property index, the energy meter submodule be used for obtain the saturation output power.
To solve above-mentioned technical problem, the present invention also provides a kind of control system, including power amplifier, connects
Receipts machine and control device and test noted above device；
The test device is used to obtain right between target drain current I of power amplifier and performance parameter
Should be related to；
The receiver is used to receiving and judging the quality of the signal that the power amplifier sends, and will determine that
As a result it is sent to the control device；
The control device is used for the letter that the power amplifier sends for receiving according to the receiver and judging
Number quality and the corresponding relation adjust the drain current of the power amplifier.
To solve above-mentioned technical problem, the present invention also provides a kind of method of testing, comprises the following steps：
Test device obtains current target drain current I to be tested of power amplifier；
The test device controls the grid voltage of the power amplifier and makes the actual leakage of the power amplifier
Electrode current I0Match with target drain current I；
The test device tests the performance parameter of the power amplifier；
The test device obtains target drain current I next to be tested of the power amplifier, in repetition
Step is stated, until completing the test of all target drain currents I.
Further, the actual drain current I of the power amplifier0Match with target drain current I
For the actual drain current I0It is with the target drain current I relation：I-ΔI1≤I0≤I+ΔI2,
The Δ I1With Δ I2It is the electric current Dynamic gene more than or equal to 0.
Further, it is described according to target drain current I and actual drain current I0Adjust the power
The grid voltage of amplifier includes：The test device is according to target drain current I and the actual leakage
Electrode current I0Between relation adjust the grid voltage, the then described actual drain current after detection adjustment
I0Whether match with target drain current I, if so, then stop the adjustment grid voltage；If it is not, then
Continue to adjust the grid voltage, until the actual drain current I0Match with target drain current I.
Further, include after the performance parameter of the test device test power amplifier：Obtain
And store the corresponding relation between target drain current I and the performance parameter.
Further, the test device obtain current target drain current I to be tested of power amplifier and
Actual drain current I0Afterwards, also include, the test device detects and be stored in all target drain electrodes
Ambient temperature under electric current I residing for the power amplifier.
To solve above-mentioned technical problem, the present invention also provides a kind of control method, including test noted above
Method, after the test for completing all target drain currents I to be tested, also includes：
Obtained according to described method of testing between target drain current I and performance parameter of power amplifier
Corresponding relation；
Receiver obtain and judge the power amplifier output signal quality；
Receiver sends the judged result of the quality of the output signal of the power amplifier to control device；
The control device adjusts the leakage of the power amplifier according to the judged result and the corresponding relation
Electrode current.
The invention has the beneficial effects as follows：The invention provides a kind of test device and method, test device passes through
The grid voltage of adjustment power amplifier correspond to the drain current for changing power amplifier, when actually drain electrode is electric
When stream and target drain current are matched, test device stops adjusting grid voltage, then starts to power amplification
The performance test of device, after the performance test under the target drain current is finished, test device continues to adjust work(
The grid voltage of rate amplifier, to carry out the performance test of the corresponding power amplifier of next target drain current,
Till until completing the performance test of all target drain currents, test device is set to be automatically performed under different conditions
The performance test of power amplifier, saves manpower, it is ensured that the efficiency and accuracy of test；The present invention is also
There is provided a kind of control system and method, control system includes above-mentioned test device, and test device is used to obtain
Take the target drain current of power amplifier and the corresponding relation of performance parameter；Control system is obtaining power
After the output signal of amplifier, the quality of output signal is judged, then by the judged result and right
The drain current for answering relation pair power amplifier is adjusted, and the working condition for making power amplifier is optimal,
On the premise of power amplifier job requirement is met, resource is effectively saved, improve efficiency.
Description of the drawings
Fig. 1 is a kind of structural representation of test device that embodiment one is provided；
Fig. 2 is a kind of structural representation of control system that embodiment two is provided；
Fig. 3 is a kind of flow chart of method of testing that embodiment three is provided；
A kind of flow chart of control method that Fig. 4 is provided for example IV；
Fig. 5 is the structural representation of another kind of test device that embodiment five is provided；
Fig. 6 is the flow chart of another kind of method of testing that embodiment five is provided.
Specific embodiment
Accompanying drawing is combined below by specific embodiment to be described in further detail the present invention.
Embodiment one
A kind of structural representation of test device that Fig. 1 is provided for the present embodiment, refer to Fig. 1：
Test device 10 in the present embodiment includes：Control module 101, performance parameter test module 102；
Control module 101 is used to obtain current target drain current I to be tested of power amplifier, then controls
The grid voltage of power amplifier, makes current actual drain current I0Match with target drain current, when
After the completion of process, control module 101 sends test and notifies to performance parametric testing module 102, allows performance
Parametric testing module 102 starts to test the performance parameter of power amplifier；And for joining in performance
After number test module 102 is completed, continue next target drain current I for obtaining power amplifier, until
Control module 101 has obtained all target drain currents I and performance parameter test module 102 is completed to institute
There is the test of the performance parameter of the corresponding power amplifier of target drain current I, realized using control module
Above-mentioned functions can realize the automatic test of the different working condition to power amplifier, it is to avoid artificial
That what is tested is loaded down with trivial details, shortens the testing time；
Performance parameter test module 102 is used for after the test for receiving the transmission of control module 101 is notified to power
The performance parameter of amplifier is tested, and after being completed, notifies control module 101, the performance parameter
Test module 102 is notified automatically to the performance parameter of power amplifier by the test that control module 101 sends
Tested, it is to avoid manual testing's is loaded down with trivial details, improves testing efficiency.
Further, control module 101 realizes actual drain current I0Match specifically with target drain current I
For actual drain current I0Meet with lower inequality with the relation of target drain current I：I-ΔI1≤I0
≤I+ΔI2, wherein, Δ I1With Δ I2It is the electric current Dynamic gene more than or equal to 0, Δ I1With Δ I2Can phase
Deng, it is also possible to, the present embodiment is preferably Δ I1With Δ I2It is equal；If Δ I1Equal to Δ I2And be equal to
When zero, target drain current I and actual drain current I are represented0It is equal；During actual adjustment, actual leakage
Electrode current I0Can not possibly be essentially equal with target current I, so being for real using the electric current Dynamic gene
Border drain current I0One rational value area, actual drain current I0Value in value area is all to meet
Error requirements；The electric current Dynamic gene can also be that target drain current I is set as into a value range,
And actual drain current I0Any value, if in the value range, all as the target drain current
Eigenvalue, represents this target drain current I, so in the range of error is allowed, can effectively lift survey
The efficiency of examination.
In the present embodiment, control module 101 is preferably PC and central processing unit, in order that control module 101
The digital signal of output is converted to the analogue signal that power amplifier can be used directly, and the present embodiment also includes
Voltage transformation module 105, voltage transformation module 105 is used for the grid adjustment voltage for exporting control module 101
Input power amplifier after conversion, grid adjustment voltage be digital signal, through voltage transformation module 105 it
Afterwards, the digital signal becomes for analogue signal, directly can be used by power amplifier.
Further, the detailed process of adjustment grid voltage is：According to target drain current I and actual drain electrode
Electric current I0Adjustment grid voltage, after adjustment, by change after actual drain current I0With target drain current I
Compare, as actual drain current I0After the matching of target drain current I, stop adjustment grid voltage；
If mismatch, according to change after actual drain current I0Continue to adjust with the relation of target drain current I,
Until actual drain current I0Till matching with target drain current I.Preferably, the adjustment in the present embodiment
Mode is step-by-step movement adjustment, i.e., grid voltage is adjusted according to identical difference, makes actual drain current I0
Approach target drain current I；Certainly, during adjustment, or arbitrary interval adjustment, as long as reality can be made
Drain current I0Match with target drain current I.
In the present embodiment, when testing power amplifier, the input power of power amplifier can be zero,
Target drain current I now tested is different quiescent currents.The input power of power amplifier may not be used yet
It is zero, it can be input into correspondingly sized power, target drain current I now tested is different constant electricity
Stream, and now when the drain current of power amplifier is with extraneous change, control module 101 can pass through upper
State control mode and in real time electric current is withdrawn into into constant current, after the completion of to a constant current electric performance test,
Control module 101 will carry out approaching in real time for next constant current, the like, you can complete different perseverances
Determine the traversal test of the electrical property of current status.
Further, in the present embodiment, also including current detection module 103, for detecting power amplifier
Currently practical drain current I0And control module 101 is sent to, control module 101 is made for currently practical
Drain current I0It is adjusted correspondingly with the grid voltage of the relation pair power amplifier of target drain current I.
Further, in the present embodiment, also including statistical module 104, for obtaining and storing target drain electrode
The performance parameter corresponding with target drain current I that electric current I and performance parameter test module 102 are measured,
Then set up and store the table and/or corresponding relation of corresponding relation between target drain current I and performance parameter
Figure, target drain current can intuitively be reflected by the table of the corresponding relation and/or the figure of corresponding relation
Corresponding relation between I and performance parameter, facilitates user to check.
Further, in order to embody power amplifier in different environments between drain current and performance parameter
Corresponding relation, the test device also includes temperature detecting module 106, and temperature detecting module 106 is used for detection and exists
Ambient temperature under all target drain currents I residing for power amplifier, and the temperature data for obtaining is sent
To control module 101, the ambient temperature that control module 101 is additionally operable to detect is sent to statistical module 104；
Statistical module 104 is additionally operable to correspondence storage condition temperature and target drain current I, may be alternatively stored in all of ring
The relation table and/or graph of a relation of the performance parameter of the different conditions of corresponding power amplifier under the temperature value of border.
Further, the performance parameter of power amplifier has a lot, such as linear index, saturation output power,
It is voltage, electric current, efficiency, input-output characteristic, gain, output standing wave, flatness, harmonics restraint, miscellaneous
Suppression, intermodulation characteristic, phase place, group delay, amplitude modulation/phase modulation are dissipated, and test is mainly selected in the present embodiment
Performance parameter includes linear index and saturation output power, and the present embodiment is considering the optimal work of power amplifier
It is main to consider linear index and saturation output power the two parameters when making state.Performance parameter test module
102 also include audiofrequency spectrometer submodule 1021 and energy meter submodule 1022, and audiofrequency spectrometer submodule 1021 includes
Audiofrequency spectrometer, energy meter submodule 1022 includes energy meter, and audiofrequency spectrometer submodule 1021 is detected using audiofrequency spectrometer
Linear index, the linear index includes third order intermodulation, and energy meter submodule 1022 detects saturation using energy meter
Output.Corresponding relation tool between target drain current I and performance parameter of the foundation of statistical module 104
Body includes, the mapping table and/or corresponding relation figure between target drain current I and linear index, and
Mapping table and/or corresponding relation figure between target drain current I and saturation output power.
Further, the correspondence pass between target drain current I and performance parameter of the acquisition of statistical module 104
System can make relation table and/or graph of a relation is stored in statistical module 104, the relation table and/or graph of a relation
The temperature of correspondence test mode can also be included；It is right between above-mentioned target drain current I and linear index
Answer relation table and/or corresponding relation figure, and the correspondence pass between target drain current I and saturation output power
It is that table and/or corresponding relation figure can be including the ambient temperatures for measuring.
Cause the damage of test device or power amplifier in order to avoid drain current is excessive, the present embodiment
Additionally provide overcurrent protection module；As the currently practical drain current I that current detection module 103 is measured0It is big
Little to have exceeded default threshold value, control module 101 can send the instruction for cutting off the electric current to overcurrent protection module,
Overcurrent protection module have received the instruction and shut off the electric current；When current detection module 103 measure it is instantaneous
Electric current is excessive, and when control module 101 has little time reaction, overcurrent protection module can directly cut off the electricity supply, it is ensured that
The safety of equipment.
Test device in the present embodiment can be a single test device unit, it is also possible to be disposed on
In various test terminals.Power amplifier in the present embodiment can be a single power amplifier apparatus,
The amplification module that can also be disposed in various equipment.
Embodiment two
A kind of structural representation of control system 20 that Fig. 2 is provided for the present embodiment, refer to Fig. 2：
Control system 20 in the present embodiment includes power amplifier 201, receiver 202, control device 203
And the test device 10 in embodiment one；
Receiver 202 is used for the signal for sending of receiving power amplifier 201, then judges the matter of the signal
Amount, and the result that will determine that is sent to control device 203；
Control device 203 is received after the judged result of the transmission of receiver 202, can according to the judged result and
The corresponding relation measured by test device 10 adjusts drain current to correspond to, and the working condition of power amplifier is adjusted to
It is optimum.
The quality of the signal that receiver 202 is received can be characterized by average error rate in the present embodiment；Certainly
Other criterions may also be employed to characterize.
The concrete adjustment process of control device 203 is in the present embodiment, if the judgement knot that receiver 202 is obtained
Fruit is very poor for the signal quality that power amplifier 201 sends, such as average error rate is very poor, and link is obstructed,
The linear index for being then judged as output signal deteriorates, and control device 203 can select power amplifier 201 linear
The preferable state of index to drain current carrying out corresponding adjustment；If average error rate is good, and link is obstructed,
Then it is judged as that the saturation output power of output signal is bad, control device 203 can select power amplifier 201
The preferable state of saturation output power to drain current carrying out corresponding adjustment.
Further, the mode for adjusting the drain current of power amplifier preferably adjusts the grid of power amplifier
Pole tension.
Embodiment three
The flow chart of the method for testing that Fig. 3 is provided for the present embodiment, refer to Fig. 3, and this method of testing is specifically walked
Suddenly include：
S301, test device obtain current target drain current I to be tested of power amplifier；
S302, test device control the grid voltage of power amplifier, make the actual drain electrode electricity of power amplifier
Stream I0Match with target drain current I；
The step can be adjusted by control module 101 to grid voltage, make the actual leakage of power amplifier
Electrode current I0Match with target drain current I；It should be understood that be not precluded from using other adjustable strategies come
The drain current size of adjustment power amplifier；
The performance parameter of S303, test device measured power amplifier；
S304, test device obtain target drain current I next to be tested of power amplifier, and repetition is above-mentioned
Step, until completing the test of all target drain currents I.
Specifically, after the completion of test of the performance parameter test module 102 to performance parameter, control mould can be given
The sending signal of block 101, control module 101 is received and may proceed to after signal adjustment grid voltage, makes actual drain electrode
Electric current I0Match with next target drain current I, performance parameter test module 102 continues to test next target
The performance parameter of drain current I, statistical module 104 also continues to set up next target drain current I and performance
Corresponding relation between parameter, until completing all target drain currents I under performance parameter test.
In the present embodiment, when testing power amplifier, the input power of power amplifier can be zero,
Target drain current I now tested is different quiescent currents.The input power of power amplifier may not be used yet
It is zero, it can be input into correspondingly sized power, target drain current I now tested is different constant electricity
Stream, and now when the drain current of power amplifier is with extraneous change, control module 101 can pass through upper
State control mode and in real time electric current is withdrawn into into constant current, after the completion of to a constant current electric performance test,
Control module 101 will carry out approaching in real time for next constant current, the like, you can complete different perseverances
Determine the traversal test of the electrical property of current status.
Further, actual drain current I0Match with target drain current I specifically, actual drain current
I0Meet with lower inequality with the relation of target drain current I：I-ΔI1≤I0≤I+ΔI2, wherein, Δ I1
With Δ I2It is the electric current Dynamic gene more than or equal to 0, Δ I1With Δ I2Can be with equal, it is also possible to, this
Embodiment is preferably Δ I1With Δ I2It is equal；If Δ I1Equal to Δ I2And during equal to zero, represent target drain electrode
Electric current I and actual drain current I0It is equal；During actual adjustment, actual drain current I0Impossible and mesh
Electric current I is essentially equal for mark, so being for actual drain current I using the electric current Dynamic gene0One conjunction
The value area of reason, actual drain current I0Value in value area all meets error requirements；The electric current
Dynamic gene can also be that target drain current I is set as into a value range, and actual drain current I0's
Any value, as long as in the value range, all as the eigenvalue of the target drain current, representing this mesh
Mark drain current I, so in the range of error is allowed, can effectively lift the efficiency of test.
Further, the detailed process of adjustment grid voltage is：According to target drain current I and actual drain electrode
Electric current I0Adjustment grid voltage, after adjustment, by change after actual drain current I0With target drain current I
Compare, as actual drain current I0After the matching of target drain current I, stop adjustment grid voltage；
If mismatch, according to change after actual drain current I0Continue to adjust with the relation of target drain current I,
Until actual drain current I0Till matching with target drain current I.Preferably, the adjustment in the present embodiment
Mode is step-by-step movement adjustment, i.e., grid voltage is adjusted according to identical difference, makes actual drain current I0
Approach target drain current I；Certainly, during adjustment, or arbitrary interval adjustment, as long as reality can be made
Drain current I0Match with target drain current I.
Further, it is further comprising the steps of after step S301：
Test device obtains and stores the corresponding relation between target drain current I and performance parameter.Specifically,
The performance parameter of power amplifier is obtained by performance parameter test module 102, then by statistical module
104 corresponding relations to set up between target drain current I and performance parameter.
Further, it is further comprising the steps of after step S301：
The ambient temperature that test device is detected and is stored under all target drain currents I residing for power amplifier.
When power amplifier does not have input signal, actual drain current I now0For quiescent current, surveying
During examination, using corresponding relation dull between grid voltage and drain current, power amplifier is directly adjusted
Grid voltage, makes actual drain current I0It is corresponding to change；As actual drain current I0With target drain current
When I is matched, grid voltage is no longer adjusted, now start to test the performance parameter of power amplifier；
After being completed, continue the grid voltage for adjusting power amplifier, make actual drain current I0Matching is next
Target drain current I, continues test performance parameter, until having tested all target drain currents I and correspondence
Performance parameter till.
When power amplifier has input signal, actual drain current I now0For constant current, testing
When, need to carry out real-time adjustment to grid voltage so that the actual drain current I changed with input signal0All the time
Match with target drain current I, then start to test the performance parameter of power amplifier；Test
Bi Hou, proceeds the real-time adjustment to grid voltage so that the real-time drain current I changed with input signal0
All the time match with next target drain current I, by that analogy, different constant current states can be completed
The test of performance parameter.
Example IV
Fig. 4 is a kind of flow chart of control method that the present embodiment is provided, and refer to Fig. 4：
Specifically, the control method includes the method for testing in embodiment three, repeats no more here；In step
After rapid S304, also comprise the steps：
S401, receiver obtain and judge the power amplifier output signal quality；
S402, receiver send the judged result of the quality of the output signal of the power amplifier to control
Device；
S403, control device adjust the drain current of power amplifier according to judged result and corresponding relation.
Specifically, the corresponding relation is the target leakage of the power amplifier that the method for testing in embodiment three is obtained
Corresponding relation between electrode current and performance parameter.
Further, the quality of the signal that receiver is received is reflected by average error rate.
Further, the concrete adjustment process of control device is, if the judgment result displays that receiver is received
The signal quality that power amplifier sends is very poor, such as average error rate is very poor, and link is obstructed, then judge
Linear index for output signal deteriorates, and control device can select the preferable state of linear index of power amplifier
To carry out corresponding adjustment to drain current；If average error rate is good, and link is obstructed, then be judged as output
The saturation output power of signal is bad, and control device can select the preferable shape of power amplifier saturation output power
State to drain current carrying out corresponding adjustment.
Further, the mode for adjusting the drain current of power amplifier preferably adjusts the grid of power amplifier
Pole tension.
Embodiment five
In order to be better understood from the present invention, the present embodiment provides a kind of test device of concrete structure and enters for example
Row is further illustrated, and is referred to as shown in Figure 5：
The present embodiment can realize detection while the detection to electric current all the way, or multichannel electric current, with
And realize to testing while multiple power amplifiers.
Test device 50 in the present embodiment includes：Central processing unit 501, current detection module 502, control
Machine processed 503, overcurrent protection module 504, temperature detecting module 505, voltage transformation module 506, audiofrequency spectrometer
And energy meter；Central processing unit 501 includes D/A converter module 5011 and analog-to-digital conversion module 5012.
Specifically, the connection of central processing unit 501 control machine 503 (specifically can be realized using PC etc.), control
Function command to be tested is issued to central processing unit 501 by machine 503, while central processing unit 501 passes through
Analog-to-digital conversion module 5012 collects actual drain current I0With target drain current I, then drained according to target
Electric current I and actual drain current I0The grid voltage that sends of relation adjust signal to D/A converter module 5011,
The grid voltage for sending adjustment signal is converted to analogue signal by D/A converter module 5011.Wherein, centre
The grid voltage adjustment signal that reason device 501 sends makes actual drain current I0Match with target drain current I；
After the completion of matching, central processing unit 501 notifies the performance parameter of audiofrequency spectrometer and energy meter to power amplifier
Tested, specially the linear index of audiofrequency spectrometer measured power amplifier, energy meter measured power amplifier
Saturation output power, control machine 503 collect the mapping table of target drain current I and performance parameter and/
Or corresponding relation figure.After the completion of test, audiofrequency spectrometer and energy meter understand feedback command to central processing unit 501, in
Central processor 501 proceeds by the acquisition of next target drain current I and the test of corresponding performance parameter,
Test until completing all target drain currents I.
The 0V-3.3V voltages that voltage transformation module 507 exports D/A converter module 5012 are converted by amplifier
- 5V-0V to needed for grid voltage, realizes control of the central processing unit 501 to grid voltage, while having hard
Part protection setting voltage is without departing from -5V-0V.
Current detection module 502 is used for detecting the actual drain current I of power amplifier0, and feed back in time
Central processing unit 501 and control machine 503.Further, current detection module 502 also includes switch module
5021, as actual drain current I0Beyond threshold value when, central processing unit 501 can be with controlling switch module 5021
Cut off the electricity supply switch, protection power amplifier and power supply；Simultaneously as moment actual drain current I0When excessive,
Corresponding protection is have also been made on switch module 5021, can be cut off the electricity supply in time.
Temperature detecting module 505 includes temperature sensor 5051 and amplifier 5052, and temperature detecting module 505 is given
The chip power supply of external temperature sensor 5051, the real time record current power of temperature sensor 5051 is amplified
Ambient temperature residing for device, after the temperature signal for measuring is amplified by amplifier 5052, then through analog digital conversion
Temperature signal is converted to digital signal by module 5012, sends into central processing unit 501, realizes central processing unit
The real time record of 501 pairs of temperature.
Fig. 6 is the corresponding flow chart of test device based on Fig. 5, is comprised the following steps that：
The drain current of the n roads power supply that S601, the detection of current detection module 502 pass through the test device, even
Central processing unit 501 is connected to, allows central processing unit 501 to read this n roads current value in real time；
Further, when electric current exceedes 501 software set maximum of central processing unit, central processing unit 501
Send that group of circuit that excessively stream is cut off in instruction by controlling switch module 5021；Simultaneously immediate current is excessive, in
Central processor 501 have little time reaction when, current detection module 502 also can using hardware output cut-out excessively stream that
Group switch；
S602, temperature detecting module 505 give the chip power supply of external temperature sensor 5051, temperature sensing
Ambient temperature residing for the real time record current power amplifier of device 5051, by the temperature signal for measuring amplifier is passed through
After 5052 amplify, then temperature signal is converted to into digital signal through analog-to-digital conversion module 5012, sends into central authorities
Processor 501, realizes real time record of the central processing unit 501 to temperature.
S603, the connection control machine 503 of central processing unit 501, control machine 503 is by function command to be tested
Central processing unit 501 is issued to, while central processing unit 501 collects reality by analog-to-digital conversion module 5012
Drain current I0With target drain current I, then according to target drain current I and actual drain current I0's
The grid voltage that relation sends adjusts signal to D/A converter module 5011, and D/A converter module 5011 will send
Grid voltage adjustment signal be converted to analogue signal.
The grid voltage adjustment signal that S604, central processing unit 501 send makes actual drain current I0With target
Drain current I is matched, and after the completion of matching, central processing unit 501 notifies audiofrequency spectrometer and energy meter to power
The performance parameter of amplifier is tested, obtain target drain current I and performance parameter mapping table and/
Or corresponding relation figure；
S605, central processing unit 501 obtain target drain current I next to be tested of power amplifier, weight
Multiple above-mentioned steps, until completing the test of all target drain currents I.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to recognized
Being embodied as of the fixed present invention is confined to these explanations.For the ordinary skill of the technical field of the invention
For personnel, without departing from the inventive concept of the premise, some simple deduction or replace can also be made,
Protection scope of the present invention should be all considered as belonging to.
Claims (15)
1. a kind of test device, it is characterised in that include：Control module and performance parameter test module；
The control module is used to obtain current target drain current I to be tested of power amplifier, and control is described
The grid voltage of power amplifier makes the actual drain current I of the power amplifier0With target drain electrode electricity
Stream I matchings, and send test notice to the performance parameter test module；And in performance ginseng
Number test module obtains next target drain current I of the power amplifier after being completed, until having obtained institute
There is target drain current I；
The performance parameter test module is used to notify that the performance to the power amplifier is joined according to the test
Number is tested.
2. test device as claimed in claim 1, it is characterised in that the reality of the power amplifier
Drain current I0Match with target drain current I and be：The actual drain current I0With target leakage
Electrode current I relations are：I-ΔI1≤I0≤I+ΔI2, the Δ I1With Δ I2It is the electric current more than or equal to 0
Dynamic gene.
3. test device as claimed in claim 2, it is characterised in that also including voltage transformation module,
It is described according to target drain current I and actual drain current I0Adjust the grid electricity of the power amplifier
Briquetting is included：The control module is according to target drain current I and actual drain current I0Input grid is adjusted
The grid is adjusted defeated after voltage conversion by whole voltage to the voltage transformation module, the voltage transformation module
Enter the power amplifier.
4. test device as claimed in claim 3, it is characterised in that described to be drained according to the target
Electric current I and actual drain current I0Adjusting the grid voltage of the power amplifier also includes：The control mould
Tuber is according to target drain current I and the actual drain current I0Between relation adjust grid electricity
Pressure, the described actual drain current I after then detection is adjusted0Whether match with target drain current I,
If so, the adjustment grid voltage is then stopped；If it is not, then continue to adjust the grid voltage, until described
Actual drain current I0Match with target drain current I.
5. the test device as described in any one of claim 1-4, it is characterised in that also examine including electric current
Module is surveyed, the current detection module is used to detect the actual drain current I of the power amplifier0And send
To the control module.
6. the test device as described in any one of claim 1-4, it is characterised in that also including statistics mould
Block, the statistical module is used to obtain and store between target drain current I and the performance parameter
Corresponding relation.
7. the test device as described in any one of claim 1-4, it is characterised in that also examine including temperature
Module is surveyed, the temperature detecting module is used to detect the power amplification under all target drain currents I
Ambient temperature residing for device, and it is sent to the control module；The control module is additionally operable to the environment
Temperature is sent to the statistical module；The statistical module be additionally operable to the correspondence storage ambient temperature with it is described
Target drain current I.
8. the test device as described in any one of claim 1-4, it is characterised in that the parameter acquiring
Module includes audiofrequency spectrometer submodule and energy meter submodule, and the performance parameter includes that linear index and saturation are defeated
Go out power, the audiofrequency spectrometer submodule is used to obtain the linear index, and the energy meter submodule is used to obtain
Take the saturation output power.
9. a kind of control system, it is characterised in that including power amplifier, receiver and control device
And the test device as described in any one of claim 1-8；
The test device is used to obtain right between target drain current I of power amplifier and performance parameter
Should be related to；
The receiver is used to receiving and judging the quality of the signal that the power amplifier sends, and will determine that
As a result it is sent to the control device；
The control device is used for target drain current I according to the judged result and the power amplifier
Corresponding relation between performance parameter adjusts the drain current of the power amplifier.
10. a kind of method of testing, it is characterised in that comprise the following steps：
Test device obtains current target drain current I to be tested of power amplifier；
The test device controls the grid voltage of the power amplifier and makes the actual leakage of the power amplifier
Electrode current I0Match with target drain current I；
The test device tests the performance parameter of the power amplifier；
The test device obtains target drain current I next to be tested of the power amplifier, in repetition
Step is stated, until completing the test of all target drain currents I.
11. method of testings as claimed in claim 10, it is characterised in that the reality of the power amplifier
Border drain current I0Match with target drain current I and be, the actual drain current I0With the target
Drain current I relations are：I-ΔI1≤I0≤I+ΔI2, the Δ I1With Δ I2It is the electricity more than or equal to 0
Stream Dynamic gene.
12. method of testings as claimed in claim 11, it is characterised in that described to be leaked according to the target
Electrode current I and actual drain current I0Adjusting the grid voltage of the power amplifier includes：The test dress
Put according to target drain current I and the actual drain current I0Between relation adjust grid electricity
Pressure, the described actual drain current I after then detection is adjusted0Whether match with target drain current I,
If so, the adjustment grid voltage is then stopped；If it is not, then continue to adjust the grid voltage, until described
Actual drain current I0Match with target drain current I.
13. method of testings as described in any one of claim 10-12, it is characterised in that the test dress
Put and include after the performance parameter for testing the power amplifier：Obtain and store target drain current I
With the corresponding relation between the performance parameter.
14. method of testings as described in any one of claim 10-12, it is characterised in that the test dress
Put and obtain current target drain current I to be tested of power amplifier and actual drain current I0Afterwards, also wrap
Include, the test device is detected and stored under all target drain currents I residing for the power amplifier
Ambient temperature.
15. a kind of control methods, it is characterised in that comprise the steps：
Method of testing according to any one of claim 10-14 obtains the target drain electrode electricity of power amplifier
Corresponding relation between stream I and performance parameter；
Receiver obtain and judge the power amplifier output signal quality；
Receiver sends the judged result of the quality of the output signal of the power amplifier to control device；
The control device is according to the judged result and target drain current I and property of the power amplifier
Corresponding relation between energy parameter adjusts the drain current of the power amplifier.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510646697.4A CN106569117A (en) | 2015-10-08 | 2015-10-08 | Testing method and testing apparatus, control method and control system |
| PCT/CN2016/085005 WO2016197896A1 (en) | 2015-10-08 | 2016-06-06 | Testing method, testing device, control method and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510646697.4A CN106569117A (en) | 2015-10-08 | 2015-10-08 | Testing method and testing apparatus, control method and control system |
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| Publication Number | Publication Date |
|---|---|
| CN106569117A true CN106569117A (en) | 2017-04-19 |
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ID=57502813
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510646697.4A Pending CN106569117A (en) | 2015-10-08 | 2015-10-08 | Testing method and testing apparatus, control method and control system |
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| Country | Link |
|---|---|
| CN (1) | CN106569117A (en) |
| WO (1) | WO2016197896A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667506A (en) * | 2018-04-26 | 2018-10-16 | 北京空间飞行器总体设计部 | A kind of satellite electric propulsion system, which modulates signal of communication, influences test system and method |
| CN112710907A (en) * | 2019-10-24 | 2021-04-27 | 苏州华太电子技术有限公司 | Power amplifier test method, power amplifier test system and computer readable storage medium |
| WO2023246114A1 (en) * | 2022-06-21 | 2023-12-28 | 中兴通讯股份有限公司 | Power calibration method, wireless communication device and storage medium |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946461B (en) * | 2021-03-30 | 2022-09-20 | 北京环境特性研究所 | Method and device for testing linearity of active calibration body power amplifier |
| CN114325062B (en) * | 2022-03-10 | 2022-06-10 | 杭州飞仕得科技有限公司 | Current testing method of power module |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004260232A (en) * | 2003-02-24 | 2004-09-16 | Hitachi Kokusai Electric Inc | Amplifier circuit |
| CN100536320C (en) * | 2006-12-27 | 2009-09-02 | 京信通信技术(广州)有限公司 | Self-adaptive grid-voltage compensator and its compensation |
| CN101256214B (en) * | 2008-03-27 | 2010-07-14 | 京信通信***（中国）有限公司 | Self-adapting testing system and method for radio-frequency power amplifier |
| CN101567664B (en) * | 2009-06-05 | 2011-04-20 | 武汉虹信通信技术有限责任公司 | Method for improving efficiency of power amplifier by self-adaptively adjusting grid-voltage value |
| US8364103B2 (en) * | 2010-09-21 | 2013-01-29 | Intel Mobile Communications GmbH | Adaptive adjustment of active area for power amplifier |
| JP2012244251A (en) * | 2011-05-16 | 2012-12-10 | Fujitsu Ltd | Amplifier, transmission device and amplifier control method |
| CN104698360B (en) * | 2013-12-06 | 2017-12-05 | 北京北广科技股份有限公司 | The adjustment method of power amplifier module |
| CN104539250B (en) * | 2014-12-12 | 2017-11-14 | 京信通信***（中国）有限公司 | Adjustment method, the device and system of power amplifier |
-
2015
- 2015-10-08 CN CN201510646697.4A patent/CN106569117A/en active Pending
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2016
- 2016-06-06 WO PCT/CN2016/085005 patent/WO2016197896A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667506A (en) * | 2018-04-26 | 2018-10-16 | 北京空间飞行器总体设计部 | A kind of satellite electric propulsion system, which modulates signal of communication, influences test system and method |
| CN108667506B (en) * | 2018-04-26 | 2020-11-20 | 北京空间飞行器总体设计部 | System and method for testing influence of satellite electric propulsion system on communication signal modulation |
| CN112710907A (en) * | 2019-10-24 | 2021-04-27 | 苏州华太电子技术有限公司 | Power amplifier test method, power amplifier test system and computer readable storage medium |
| WO2023246114A1 (en) * | 2022-06-21 | 2023-12-28 | 中兴通讯股份有限公司 | Power calibration method, wireless communication device and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016197896A1 (en) | 2016-12-15 |
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Application publication date: 20170419 |