CN206235720U - A kind of LED drives test system - Google Patents
A kind of LED drives test system Download PDFInfo
- Publication number
- CN206235720U CN206235720U CN201621338732.2U CN201621338732U CN206235720U CN 206235720 U CN206235720 U CN 206235720U CN 201621338732 U CN201621338732 U CN 201621338732U CN 206235720 U CN206235720 U CN 206235720U
- Authority
- CN
- China
- Prior art keywords
- led
- unit
- parameter
- module
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Led Devices (AREA)
Abstract
The utility model belongs to field of measuring technique, and in particular to LED drives test system.The LED is driven in test system：LED drive unit is connected with power supply unit, for receiving the power supply of power supply unit output and being converted to voltage/current suitable for LED load unit；LED load unit is connected with LED drive unit, operating mode and its corresponding duty parameter for simulating various LED loads；Data capture unit is detachably connected with LED drive unit, for obtaining the electric signal parameter of LED drive unit, and is sent to control unit；Control unit can respectively be connected with power supply unit, LED load unit and data capture unit, voltage/current supply parameter, the operating mode of the LED load of regulation LED load unit, the running parameter of regulation data capture unit for regulation power supply feed unit, and the data of the LED drive unit obtained to data capture unit are processed.It can solve the problems, such as that LED drives the life-span less than LED light source service life, improve the life-span of integral LED lamp.
Description
Technical field
The utility model belongs to field of measuring technique, and in particular to a kind of LED drives test system.
Background technology
LED drive power is the electric pressure converter that power supply supply is converted to specific voltage x current to drive LED luminous.
Under normal circumstances, the input of LED drive power includes that high pressure industrial frequency AC (i.e. civil power), low-voltage direct, HVDC, low pressure are high
Frequency exchange (such as output of electronic transformer).And the output of LED drive power is then most of can to become with LED forward drop value
Change and change the constant current source of voltage.
The characteristic requirements of electricity consumption rule and LED drive power according to power network, it is comprehensive when selecting and designing LED drive power
Conjunction consider it is following some：High reliability, high efficiency, High Power Factor, surge protection, LED temperature negative-feedback, the life-span of LED
And electromagnetic compatibility lamp.For a user, the life-span of the LED that LED drive power drives to it have a direct impact, also can to supply
AC power supplies to its power supply produces influence, involves the stability of civil power.As the application of LED is increasingly extensive, LED drive power
Performance will increasingly be adapted to the requirement of LED.
According to type of drive, LED drive power includes constant current mode, type voltage regulation, pulsed drive and exchanges various shapes such as driving
Formula.However, no matter to which kind of type of drive, at present to the design evaluation of LED drive unit development, being substantially survey manually
Amount pattern, engineer often carries out Primary regulation to driving power supply or LED load, be required for accordingly carry out a data acquisition and
Calculate, not only workload is big, and efficiency is low, and test result there is also larger error.
Therefore, it is acquisition preferably LED operating modes and longer life, and ensures the stability of civil power, is carried out to LED load
Before driving, the various operating modes to LED load carry out automatic imitation and assessment as technical problem urgently to be resolved hurrily at present.
The content of the invention
Technical problem to be solved in the utility model is directed to above shortcomings in the prior art, there is provided a kind of
LED drives test system, and the LED drives test system and test parameter comprehensive and test result is accurate, can guarantee that preferably LED works
Condition and longer life, and ensure the stability of civil power, and substantially reduce testing cost.
The technical scheme that solution the utility model technical problem is used is that the LED drives test system, including power supply to supply
To unit, LED drive unit and LED load unit, also including control unit and data capture unit, wherein：
The LED drive unit, is connected with the power supply unit, for receiving the power supply unit output
Power supply is simultaneously converted to voltage/current suitable for the LED load unit；
The LED load unit, is connected with the LED drive unit, for simulating the operating mode of various LED loads and its right
The duty parameter answered；
The data capture unit, is detachably connected with the LED drive unit, for obtaining the LED drive unit
Electric signal parameter, and be sent to described control unit；
Described control unit, can be with the power supply unit, the LED load unit and the data capture unit point
Do not connect, the voltage/current for adjusting the power supply unit supplies parameter, the LED of the regulation LED load unit and bears
The operating mode of load, the running parameter for adjusting the data capture unit, and the LED that the data capture unit is obtained is driven
The data of moving cell are processed.
Preferably, described control unit includes storage module, setting module and calculating module, wherein：
The storage module, prestores multiple power sources operating mode and various load behaviors, and with power supply operating mode, load behavior
Corresponding setting duty parameter；
The setting module, is connected, with the storage module for reading power supply operating mode and corresponding with power supply operating mode setting
Determine duty parameter and transmit to the power supply unit, and read load behavior and setting operating mode corresponding with load behavior
Parameters for transmission sets the data acquisition list to the LED load unit according to the power supply operating mode and load behavior for setting
The running parameter of unit；
The calculating module, is connected with the data capture unit, for receiving the institute that the data capture unit is obtained
State the electric signal parameter of LED drive unit and duty parameter is calculated according to electric signal parameter.
Preferably, the setting module includes power settings module, load set module and test job parameter setting
Module, wherein：
The power supply operating mode prestored in the storage module is voltage or current settings parameter or setting curve, and the power supply sets
Cover half block is used for according to voltage or current settings parameter or setting curve so that the power supply unit drives for the LED
Unit provides voltage/current；
The load behavior prestored in the storage module is load parameter or load curve, and the load set module is used for
Default load parameter or load curve in load behavior in storage module so that the LED load unit simulation LED
Load；
The test job parameter setting module, for power supply operating mode and the LED according to the power supply unit
The load behavior of load unit, pattern or range to the data capture unit are adjusted.
Preferably, described control unit also include judge module, wherein：
The storage module, also prestores LED and drives operating mode index；
The judgement module, is connected with the calculating module and the storage module, for driving operating mode index according to LED
And duty parameter is calculated, judge whether the working condition of the LED drive unit is up to standard under a variety of operating modes.
Preferably, the calculating module includes sequential and transient state computing module, input characteristics computing module, output characteristics
At least one in computing module, modulation computing module and light modulation computing module, wherein：
The sequential and transient state computing module：Including declining to available machine time, unused time, start rise time, shutdown
Time and the calculating of start overshoot current at least any one；
The input characteristics computing module：Including to inrush current, input virtual value, input peak value, input power,
The calculating of current harmonics, input power factor and input power distorted analog at least any one；
The output characteristics computing module：Including to output voltage, output current, ripple current and efficiency at least any one
Calculating；
The modulation computing module：Including the calculating to power supply modulation, load modulation and total modulation at least any one；
The light modulation computing module：Calculating including exchanging photoelectric current, light modulating frequency and dimming duty cycle at least any one.
Preferably, the data capture unit includes oscillograph, data acquisition unit, power analyzer, universal meter, harmonic wave
At least one in analyzer, wherein：
The oscillograph, by the input and output end of current probe and/or high-voltage probe and the LED drive unit
Be detachably connected, for obtain ripple test data and time correlation test data, light modulation parameter, including input electricity
Flow liner ripple, input terminal voltage transient parameter and power-on time parameter, and output end current ripples, start overshoot parameter, light modulation
Electric current, light modulating frequency, dimming duty cycle；
The data acquisition unit, by the input of current probe and/or high-voltage probe and the LED drive unit and defeated
Go out end to be detachably connected, test data, light modulation parameter for obtaining ripple test data and time correlation, including input
Current ripples, input terminal voltage transient parameter and power-on time parameter, and the current ripples of output end, start overshoot parameter,
Light modulation electric current, light modulating frequency, dimming duty cycle；
The power analyzer, is detachably connected by cable with the input and/or output end of the LED drive unit
Connect, voltage, electric current, power characteristic parameter, current harmonics parameter, input surge, power factor (PF) for obtaining input, and
The voltage of output end, electric current, power characteristic parameter, start overshoot parameter, and efficiency；
The universal meter, is detachably connected by cable with the input and/or output end of the LED drive unit, is used
It is input into or output voltage, current characteristics parameter in obtaining；
The frequency analysis agreement, is detachably connected, with the input of the LED drive unit by cable for obtaining
The current harmonics parameter of input.
Preferably, described control unit also includes alarm module, and the alarm module is connected with the judgement module, uses
Operating mode or parameter not up to standard are warned in image mode, voice mode；Or, it is further single to being supplied including power supply
Any one shut-off of unit, LED drive unit and LED load unit resets.
Preferably, also including display module, the display module is used to show the power supply work from the storage module
Condition and load behavior, and the operating mode result for obtaining or calculating in real time：Including currency and average value, maximum,
The statistical value of minimum value, and measurement data parameter or operating mode result change with time process.
Preferably, described control unit also includes self adaptation module, and the self adaptation module can recognize that the power supply is supplied
To the specification and model of unit, the LED drive unit and the data capture unit, and it is the power supply unit, institute
State data capture unit and the data capture unit matches corresponding setup parameter instruction or measurement parameter instruction.
Preferably in the LED drive unit includes that protection circuit against input over-voltage, current rectifying and wave filtering circuit, clamp absorb
Circuit, voltage/current conversion circuit and output rectification circuit.
The beneficial effects of the utility model are：The LED drive test system, can guarantee that LED drive unit output stabilization and
Accurate driving voltage and electric current, it is to avoid because the fluctuation of voltage and current causes light decay, the failure even damage of LED light source；
Meanwhile, tested by input power factor, Harmonics of Input etc., it is ensured that in terms of LED drive unit Electro Magnetic Compatibility
It is required that, it is to avoid harmful influence is caused to power supply；By the test of power output, input power and power efficiency etc.,
Energy design can be assessed and optimize, so as to obtain the efficiency grade that LED higher drives, with energy saving；Additionally, for
Comprehensively test also contributes to be driven for LED the assessment in life-span to LED drive unit, so as to solve the middle LED such as LED lamp drive
Life-span seriously improves the life level of integral LED lamp less than the problem of LED light source service life.
Brief description of the drawings
Fig. 1 is the structural representation of LED driving test systems in the utility model embodiment；
Fig. 2 is the frame diagram of LED driving test systems in the utility model embodiment；
Fig. 3 is the frame diagram of another LED drivings test system in the utility model embodiment；
In reference：
1- power supply units；
2-LED driver elements；
3-LED load units；
4- control units；41- stores module；42- sets module；43- calculates module；44- judges module；45- alerts mould
Group；46- display modules；47- self adaptation modules；
5- data capture units.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real to make those skilled in the art more fully understand the technical solution of the utility model
Applying mode drives test system to be described in further detail the utility model LED.
The present embodiment provides a kind of LED drivings test system, and LED drivings test system can drive to LED load
Before dynamic, the various operating modes to LED load carry out automatic imitation and assessment, and effectively (also referred to as LED drives evaluation LED drive unit 2
Power supply) situation and performance, to ensure LED drive unit output stabilization and accurate driving voltage and electric current, it is to avoid because electricity
The fluctuation of pressure and electric current causes light decay, the failure even damage of LED light source；Meanwhile, it is humorous by input power factor, input current
Ripple etc. is tested, it is ensured that the requirement in terms of LED drive unit Electro Magnetic Compatibility, it is to avoid harmful shadow is caused to power supply
Ring；By the test of power output, input power and power efficiency etc., it can be estimated that and optimization Energy design, so as to obtain
The efficiency grade that LED higher drives, with energy saving；Additionally, it is comprehensive for LED drive unit test also contribute to for
LED drives the assessment in life-span, so as to solve the problems, such as that the middle LED such as LED lamp drives the life-span seriously less than LED light source service life, carries
The life level of integral LED lamp high.
As depicted in figs. 1 and 2, the LED drives test system, including power supply unit 1, LED drive unit 2, LED to bear
Carrier unit 3, control unit 4 and data capture unit 5, wherein：
LED drive unit 2, is connected with power supply unit 1, for receiving the power supply of the output of power supply unit 1 and turning
It is changed to the voltage/current suitable for LED load unit 3；
LED load unit 3, is connected with LED drive unit 2, operating mode and its corresponding work for simulating various LED loads
Condition parameter；
Data capture unit 5, is detachably connected with LED drive unit 2, and the electric signal for obtaining LED drive unit 2 is joined
Number, and it is sent to control unit 4；
Control unit 4, can respectively be connected with power supply unit 1, LED load unit 3 and data capture unit 5, be used for
The voltage/current supply parameter of regulation power supply feed unit 1, the operating mode of the LED load of regulation LED load unit 3, regulation data
The running parameter of acquiring unit, and the data of the LED drive unit 2 obtained to data capture unit 5 are processed.
The main monitoring object in test system, LED drive unit 2 are driven as the LED of the present embodiment to be included being input into
The function parts such as voltage protection circuit, current rectifying and wave filtering circuit, clamp absorbing circuit, voltage/current conversion circuit and output rectification circuit
Part.Here power supply unit 1 can be AC AC powers or DC dc sources, and various LED loads are applied to for exporting
Operating mode power supply；The LED load unit 3 of operating mode and its corresponding duty parameter for simulating various LED loads can be
DC DC Electronic Loads, by being adjusted to DC DC Electronic Loads to obtain the operating mode of the LED load under different situations.
Under certain LED load operating mode of DC DC loads simulation, it is applied by corresponding regulation AC AC powers or DC dc sources
Plus different power supply operating modes, the parameter of the LED drive unit 2 for now being collected by data capture unit 5 i.e. equivalent to
The test parameter under LED load under certain working condition；Mould is carried out by various LED load operating modes, multiple power sources operating mode
Test is fitted, the performance of LED drive unit 2 can be effectively assessed.
Control unit 4 is the commanding officer that the LED drives test system, can be PC or one piece of intelligent control board and built-in phase
The program answered.Control unit 4 includes storage module 41, setting module 42 and calculating module 43, wherein：
Storage module 41, prestores multiple power sources operating mode and various load behaviors, and with power supply operating mode, load behavior pair
The setting duty parameter answered；
Setting module 42, is connected, with storage module 41 for reading power supply operating mode and setting work corresponding with power supply operating mode
Condition parameters for transmission is to power supply unit 1, and reads load behavior and setting duty parameter corresponding with load behavior simultaneously
Transmit to LED load unit 3, and according to the power supply operating mode and the running parameter of load behavior setting data acquiring unit for setting；
Module 43 is calculated, is connected with data capture unit 5, the LED drive unit for receiving the acquisition of data capture unit 5
2 electric signal parameter simultaneously calculates duty parameter according to electric signal parameter.
Preferably, setting module 42 includes power settings module, load set module and test job parameter setting mould
Block, wherein：
The power supply operating mode prestored in storage module 41 is voltage or current settings parameter or setting curve, power settings module
For according to voltage or current settings parameter or setting curve so that power supply unit 1 be LED drive unit 2 provide voltage/
Electric current；
The load behavior prestored in storage module 41 is load parameter or load curve, and load set module is used for basis and deposits
Default load parameter or load curve in load behavior in storage module 41 so that LED load unit 3 simulates LED load.
Test job parameter setting module is used for according to the power supply operating mode of power supply unit 1 and bearing for LED load unit 3
Operating mode is carried, pattern or range to data capture unit 5 are adjusted.
By storing the power supply operating mode and power settings module 42 that are prestored in module 41, different works can be automatically adjusted and set
Output current/the voltage of AC AC powers or DC dc sources under condition parameter；By storing the load work prestored in module 41
Condition and load set module 42, can automatically adjust and simulate the LED load under different duty parameters；In data capture unit collection
On the basis of the electrical signal data for obtaining, calculate the electric signal parameter of module 43 and calculate duty parameter, you can obtain LED drive unit
2 working condition.
It may further be preferable that control unit 4 also includes judging module 44, wherein：
Storage module 41, also prestores LED and drives operating mode index；
Judge module 44, with calculate module 43 and storage module 41 be connected, by according to LED driving operating mode index and based on
Duty parameter is calculated, judges whether the working condition of LED drive unit 2 is up to standard under a variety of operating modes.
By judging module 44, on the basis of the duty parameter that module 43 is calculated is calculated, it is possible to achieve LED drives
Unit 2 whether the automatic decision worked under state up to standard, obtain accurate test result.
In the LED of the present embodiment drives test system, calculating module 43 includes sequential and transient state computing module, input spy
Property computing module, output characteristics computing module, modulation computing module and light modulation computing module at least one, wherein：
Sequential and transient state computing module：Including to available machine time, unused time, start rise time, shutdown fall time
With the calculating of start overshoot current at least any one；
Input characteristics computing module：Including to inrush current, input virtual value, input peak value, input power, electric current
The calculating of harmonic wave, input power factor and input power distorted analog at least any one；
Output characteristics computing module：Including the meter to output voltage, output current, ripple current and efficiency at least any one
Calculate；
Modulation computing module：Including the calculating to power supply modulation, load modulation and total modulation at least any one；
Light modulation computing module：Calculating including exchanging photoelectric current, light modulating frequency and dimming duty cycle at least any one.
Above-mentioned sequential and transient state computing module, input characteristics computing module, output characteristics computing module, modulation computing module
With light modulation computing module, any sort therein can only be selected according to test purpose, it is also possible to from wantonly two class therein, wantonly three
The computing module of class, wantonly four class or whole five classes, so as to disposably obtain more comprehensive test result.
In the LED of the present embodiment drives test system, data capture unit 5 includes oscillograph, data acquisition unit, power
At least one in analyzer, universal meter, harmonic analysis instrument, wherein：
Oscillograph, it is detachable with the input and output end of LED drive unit 2 by current probe and/or high-voltage probe
The current ripples of connection, test data, light modulation parameter for obtaining ripple test data and time correlation, including input,
Input terminal voltage transient parameter and power-on time parameter, and output end current ripples, start overshoot parameter, light modulation electric current, adjust
Light frequency, dimming duty cycle；
Data acquisition unit, can with the input and output end of LED drive unit 2 by current probe and/or high-voltage probe
The electric current of dismounting connection, test data, light modulation parameter for obtaining ripple test data and time correlation, including input
Ripple, input terminal voltage transient parameter and power-on time parameter, and output end current ripples, start overshoot parameter, light modulation electricity
Stream, light modulating frequency, dimming duty cycle；
Power analyzer, is detachably connected, with the input and/or output end of LED drive unit 2 by cable for obtaining
Take the voltage of input, electric current, power characteristic parameter, current harmonics parameter, input surge, power factor (PF), and output end
Voltage, electric current, power characteristic parameter, start overshoot parameter, and efficiency；
Universal meter, is detachably connected by cable with the input and/or output end of LED drive unit 2, defeated for obtaining
Enter or output voltage, current characteristics parameter；
Frequency analysis agreement, is detachably connected by cable with the input of LED drive unit 2, for obtaining input
Current harmonics parameter.
Each above-mentioned tester, there is the test event and test advantage being each good at, can in actual type selecting
Direction of assessment according to LED drive unit 2 does appropriate selection, does not limit here.And, so it is easy to understand that when select certain
It is to be connected using cable or current probe and/or high-voltage probe, connection with the connecting line of LED drive unit 2 during one tester
Position be in the input or output end of LED drive unit 2, connected mode using series system or parallel way,
Flexibly selected according to actual conditions, also do not limited here.
Preferably, control unit 4 also includes alarm module 45, alarm module 45 with judge module 44 and be connected, for
Image mode, voice mode are warned to operating mode or parameter not up to standard；Or, further to including power supply unit 1,
Any one shut-off of LED drive unit 2 and LED load unit 3 resets.According to the requirement of security intensity, image mode, voice
The level of security that mode goes for common intensity is reminded, but test for just carrying out can not be done and interfere by force；And it is right
Reminded in the level of security of high intensity, the test that aligning is carried out does interference by force (such as to being driven including power supply unit 1, LED
Any one shut-off of moving cell 2 and LED load unit 3 resets), so as to ensure that LED drives the peace of each part in test system
Entirely.
In the LED of the present embodiment drives test system, also including display module 46, display module 46 comes from for display
Store the power supply operating mode and load behavior of module, and the operating mode result that obtains or calculate in real time, including currency with
And the statistical value of average value, maximum, minimum value, and measurement data parameter or operating mode result change with time process.Root
According to the form of control unit 4, display module 46 can be a part (such as when control unit 4 is from PC) for control unit 4, or
Person is that (for example control unit 4 selects intelligent control board for LCD display or other display screens of external one piece with display function
When).Under normal circumstances, display module 46 is used to show test data, index parameter, calculates data and state, can be according to survey
Set which parameter participates in display, does not limit here on strip part flexible configuration selection display interface.
As another aspect of the present utility model, during actual test, limitation or money due to current test strip part
Gold limitation, the selection of power supply unit 1, LED drive unit 2 and data capture unit 5 above there may be multiple producers,
The different product of different brands.As shown in figure 3, in the LED of the present embodiment drives test system, control unit 4 is also included certainly
Module 47 is adapted to, self adaptation module 47 can recognize the specification of power supply unit 1, LED drive unit 2 and data capture unit 5
And model, and for power supply unit 1, LED drive unit 2 and data capture unit 5 match the instruction of corresponding setup parameter or
Measurement parameter is instructed.That is, according to the power supply unit 1, LED drive unit 2 and data acquisition being connected with the interface of control unit 4
The specification of unit 5 and the feedback of the information of model, self adaptation module 47 can be obtained automatically with these units communicate and data are handed over
The method changed, including communication instruction form and communication title etc., so as to realize the self adaptation of system, accomplishing to change equipment just can be with
Use, without carry out it is extra reconfiguring or developing, significantly enhance applicability.
The LED of Fig. 3 drives test system to drive test system compared to the LED in Fig. 2, and applicability is stronger, can be carried for user
For diversified instrument and equipment adaptation；If when the instrument and equipment of user's fixed single, can be driven using the LED in Fig. 2
Test system, its structure is relatively easy, and response speed is also faster.
The LED of the present embodiment drives test system highly versatile, it is adaptable to constant current mode, type voltage regulation, pulsed drive with exchange
The LED drive power test of the diversified forms such as driving.
The LED of the present embodiment drives test system, and the control machine of power supply supply and LED load can be automatically adjusted by setting
Structure, and the automatic test data for obtaining LED drive unit in real time, so as to the situation and performance to LED drive unit are carried out effectively
Assessment, to ensure that LED drives output stabilization and accurate driving voltage and electric current, it is to avoid because the fluctuation of voltage and current causes
Light decay, the failure even damage of LED light source；Meanwhile, by input power factor, the test such as Harmonics of Input, it is ensured that
Requirement in terms of LED drive unit Electro Magnetic Compatibility, it is to avoid harmful influence is caused to power supply；By power output, defeated
Enter the test of power and power efficiency etc., it can be estimated that and optimization Energy design, so as to obtain the efficiency that LED higher drives
Grade, with energy saving；Additionally, test comprehensive for LED drive unit also contributes to be driven for LED the assessment in life-span,
So as to solve the problems, such as that the middle LED such as LED lamp drives the life-span seriously less than LED light source service life, the life-span water of integral LED lamp is improved
It is flat.
Simultaneously as whole system is program control automated manner operation, thus before engineer need several hours, very
To the test job of several days, now a few minutes can just complete, greatly save the R＆D cycle that LED drives product, shorten
Time To Market, reduces development cost, so that ultimate consumer can use LED new products with more reasonably price；Base
In this, LED industry can be helped quickly to realize that product alternates, from terms of social benefit angle, greatly save the energy.
It is understood that embodiment of above be merely to illustrate that principle of the present utility model and use it is exemplary
Implementation method, but the utility model is not limited thereto.For those skilled in the art, this is not being departed from
In the case of the spirit and essence of utility model, various changes and modifications can be made therein, and these variations and modifications are also considered as this reality
With new protection domain.
Claims (10)
1. a kind of LED drives test system, including power supply unit, LED drive unit and LED load unit, and its feature exists
In, also including control unit and data capture unit, wherein：
The LED drive unit, is connected with the power supply unit, the power supply for receiving the power supply unit output
And be converted to voltage/current suitable for the LED load unit；
The LED load unit, is connected with the LED drive unit, for simulating the operating mode of various LED loads and its corresponding
Duty parameter；
The data capture unit, is detachably connected with the LED drive unit, the electricity for obtaining the LED drive unit
Signal parameter, and it is sent to described control unit；
Described control unit, can respectively connect with the power supply unit, the LED load unit and the data capture unit
Connect, voltage/current for adjusting the power supply unit supplies parameter, adjusts the LED load of the LED load unit
Operating mode, the running parameter for adjusting the data capture unit, and the LED that the data capture unit is obtained is driven single
The data of unit are processed.
2. LED drives test system according to claim 1, it is characterised in that described control unit includes storage module, sets
Cover half group and calculating module, wherein：
The storage module, prestores multiple power sources operating mode and various load behaviors, and corresponding with power supply operating mode, load behavior
Setting duty parameter；
The setting module, is connected, with the storage module for reading power supply operating mode and setting work corresponding with power supply operating mode
Condition parameters for transmission is to the power supply unit, and reads load behavior and setting duty parameter corresponding with load behavior
And transmit to the LED load unit, and the data capture unit is set according to the power supply operating mode and load behavior for setting
Running parameter；
The calculating module, is connected with the data capture unit, for receiving the LED that the data capture unit is obtained
The electric signal parameter of driver element simultaneously calculates duty parameter according to electric signal parameter.
3. LED drives test system according to claim 2, it is characterised in that the setting module includes power settings mould
Block, load set module and test job parameter setting module, wherein：
The power supply operating mode prestored in the storage module is voltage or current settings parameter or setting curve, the power settings mould
Block is used for according to voltage or current settings parameter or setting curve so that the power supply unit is the LED drive unit
Voltage/current is provided；
The load behavior prestored in the storage module is load parameter or load curve, and the load set module is used for basis
Default load parameter or load curve in load behavior in storage module so that the LED load unit simulation LED bears
Carry；
The test job parameter setting module, for power supply operating mode and the LED load according to the power supply unit
The load behavior of unit, pattern or range to the data capture unit are adjusted.
4. according to claim 2 LED drive test system, it is characterised in that described control unit also include judge module,
Wherein：
The storage module, also prestores LED and drives operating mode index；
The judgement module, with it is described calculating module and the storage module be connected, for according to LED driving operating mode index and
Duty parameter is calculated, judges whether the working condition of the LED drive unit is up to standard under a variety of operating modes.
5. LED drives test system according to claim 2, it is characterised in that the calculating module includes sequential and transient state
In computing module, input characteristics computing module, output characteristics computing module, modulation computing module and light modulation computing module at least
One kind, wherein：
The sequential and transient state computing module：Including to available machine time, unused time, start rise time, shutdown fall time
With the calculating of start overshoot current at least any one；
The input characteristics computing module：Including to inrush current, input virtual value, input peak value, input power, electric current
The calculating of harmonic wave, input power factor and input power distorted analog at least any one；
The output characteristics computing module：Including the meter to output voltage, output current, ripple current and efficiency at least any one
Calculate；
The modulation computing module：Including the calculating to power supply modulation, load modulation and total modulation at least any one；
The light modulation computing module：Calculating including exchanging photoelectric current, light modulating frequency and dimming duty cycle at least any one.
6. according to claim 1 LED drive test system, it is characterised in that the data capture unit include oscillograph,
At least one in data acquisition unit, power analyzer, universal meter, harmonic analysis instrument, wherein：
The oscillograph is removable with the input and output end of the LED drive unit by current probe and/or high-voltage probe
Unload connection, for obtain ripple test data and time correlation test data, light modulation parameter, including input electric current line
Ripple, input terminal voltage transient parameter and power-on time parameter, and output end current ripples, start overshoot parameter, light modulation electric current,
Light modulating frequency, dimming duty cycle；
The data acquisition unit, by the input and output end of current probe and/or high-voltage probe and the LED drive unit
Be detachably connected, for obtain ripple test data and time correlation test data, light modulation parameter, including input electricity
Flow liner ripple, input terminal voltage transient parameter and power-on time parameter, and output end current ripples, start overshoot parameter, light modulation
Electric current, light modulating frequency, dimming duty cycle；
The power analyzer, is detachably connected by cable with the input and/or output end of the LED drive unit, is used
In the voltage, electric current, power characteristic parameter, current harmonics parameter, input surge, the power factor (PF) that obtain input, and output
The voltage at end, electric current, power characteristic parameter, start overshoot parameter, and efficiency；
The universal meter, is detachably connected, with the input and/or output end of the LED drive unit by cable for obtaining
Take input or output voltage, current characteristics parameter；
The frequency analysis agreement, is detachably connected by cable with the input of the LED drive unit, is input into for obtaining
Current harmonics parameter.
7. LED drives test system according to claim 3, it is characterised in that also including display module, the display module
For showing power supply operating mode and load behavior from the storage module, and the operating mode knot for obtaining or calculating in real time
Really：Including currency and average value, maximum, minimum value statistical value, and measurement data parameter or operating mode result are at any time
Between change procedure.
8. LED drives test system according to claim 4, it is characterised in that described control unit also includes alarm module,
The alarm module is connected with the judgement module, for being entered to operating mode or parameter not up to standard with image mode, voice mode
Row warning；Or, further any one including power supply unit, LED drive unit and LED load unit is turned off or is weighed
Put.
9. LED drives test system according to claim any one of 1-8, it is characterised in that described control unit also includes
Self adaptation module, the self adaptation module can recognize the power supply unit, the LED drive unit and the data acquisition
The specification and model of unit, and for the matching of the power supply unit, the LED drive unit and the data capture unit is right
The setup parameter instruction answered or measurement parameter are instructed.
10. LED drives test system according to claim any one of 1-8, it is characterised in that the LED drive unit bag
Include protection circuit against input over-voltage, current rectifying and wave filtering circuit, clamp absorbing circuit, voltage/current conversion circuit and output rectification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621338732.2U CN206235720U (en) | 2016-12-08 | 2016-12-08 | A kind of LED drives test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621338732.2U CN206235720U (en) | 2016-12-08 | 2016-12-08 | A kind of LED drives test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206235720U true CN206235720U (en) | 2017-06-09 |
Family
ID=58978258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621338732.2U Active CN206235720U (en) | 2016-12-08 | 2016-12-08 | A kind of LED drives test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206235720U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589568A (en) * | 2017-09-20 | 2018-01-16 | 武汉精测电子技术股份有限公司 | A kind of LED string learns detection means and method automatically |
| CN109556652A (en) * | 2017-09-26 | 2019-04-02 | 南京淳泰控制设备有限公司 | A kind of drive dynamic control device test equipment |
| CN110412379A (en) * | 2019-07-31 | 2019-11-05 | 惠州市德赛西威汽车电子股份有限公司 | A kind of test method of instrument function response time |
| WO2020087863A1 (en) * | 2018-11-01 | 2020-05-07 | 深圳市崧盛电子股份有限公司 | Resistance dimmer for testing dimming performance of led driving power supply |
| CN113659423A (en) * | 2021-08-14 | 2021-11-16 | 广州市力为电子有限公司 | Automatic detection system and method based on laser driver |
| CN115656770A (en) * | 2022-10-19 | 2023-01-31 | 杭州国磊半导体设备有限公司 | Method and device for testing power driving chip, computer equipment and storage medium |
-
2016
- 2016-12-08 CN CN201621338732.2U patent/CN206235720U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589568A (en) * | 2017-09-20 | 2018-01-16 | 武汉精测电子技术股份有限公司 | A kind of LED string learns detection means and method automatically |
| CN107589568B (en) * | 2017-09-20 | 2020-05-22 | 武汉精测电子集团股份有限公司 | Automatic learning and detecting device and method for LED lamp string |
| CN109556652A (en) * | 2017-09-26 | 2019-04-02 | 南京淳泰控制设备有限公司 | A kind of drive dynamic control device test equipment |
| WO2020087863A1 (en) * | 2018-11-01 | 2020-05-07 | 深圳市崧盛电子股份有限公司 | Resistance dimmer for testing dimming performance of led driving power supply |
| CN110412379A (en) * | 2019-07-31 | 2019-11-05 | 惠州市德赛西威汽车电子股份有限公司 | A kind of test method of instrument function response time |
| CN113659423A (en) * | 2021-08-14 | 2021-11-16 | 广州市力为电子有限公司 | Automatic detection system and method based on laser driver |
| CN115656770A (en) * | 2022-10-19 | 2023-01-31 | 杭州国磊半导体设备有限公司 | Method and device for testing power driving chip, computer equipment and storage medium |
| CN115656770B (en) * | 2022-10-19 | 2023-09-01 | 杭州国磊半导体设备有限公司 | Power supply driving chip testing method and device, computer equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206235720U (en) | A kind of LED drives test system | |
| CN202267720U (en) | Distributed-type power interconnected inverter and electric vehicle charging machine integrated detection platform | |
| CN102879661B (en) | A kind of distribution automation terminal detection method and system | |
| CN109061338B (en) | Energy storage PCS drag-and-drop test platform and method | |
| CN104777444B (en) | Arrester discharge counter comprehensive calibrator and method of calibration | |
| CN210347811U (en) | New forms of energy car machine integration test system that charges | |
| CN114677037B (en) | Power facility operation quality detection system based on data processing | |
| CN102156227A (en) | Detecting system and detecting method for non-vehicular charging machine | |
| CN201344948Y (en) | Test instrument | |
| CN205070830U (en) | Take crystal oscillator testing capabilities's adjustable D.C. regulated power supply | |
| CN112285477A (en) | Integrated detection platform for AC/DC charging pile and field detection method for charging pile | |
| CN210217999U (en) | PDIV pulse testing system for insulation of wind driven generator | |
| CN208736943U (en) | Test macro | |
| CN105093021A (en) | Temperature rise test method of bridge arm reactor for modular multilevel converter | |
| CN208607293U (en) | A kind of underwater equipment electric property detection system | |
| CN110865252A (en) | Output electrical characteristic simulation device of proton exchange membrane fuel cell and control method thereof | |
| CN203241490U (en) | Intelligent temperature rise testing system used for electrical products | |
| CN110850294A (en) | Battery pack testing system | |
| CN204882853U (en) | Electric energy meter pressure resistance test installation | |
| CN107632259A (en) | A kind of testing station for realizing multimode multi-parameters test generating set | |
| CN204008899U (en) | A kind of interchangeability proving installation of power information acquisition terminal communication interface | |
| CN105589011A (en) | Missort investigation device and investigation method before installation of single-phase resident ammeter | |
| CN210863881U (en) | Improved generation segmentation return circuit resistance tester | |
| CN202102059U (en) | Power unit testing apparatus | |
| CN213521403U (en) | Host device of low-voltage transformer area topology rapid identification instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |