CN112485701A - Universal switching adapter plate for testing DC/DC power supply module and testing method thereof - Google Patents
Universal switching adapter plate for testing DC/DC power supply module and testing method thereof Download PDFInfo
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention relates to the technical field of DC/DC power module testing, in particular to a universal adapter board for testing a DC/DC power module and a testing method thereof. The universal switching adapter plate is suitable for testing DC/DC power supply modules of various airborne electronic products, special equipment does not need to be developed, only a switching cable needs to be manufactured, the development period is short, the operation is easy, and meanwhile, the cost is saved; the testing method can realize the automatic testing of the DC/DC power supply module, improve the testing efficiency and save the labor cost.
Description
Technical Field
The invention relates to the technical field of DC/DC power module testing, in particular to a universal adapter board for testing a DC/DC power module and a testing method thereof.
Background
At present, aviation airborne electronic products are various in variety, an independent DC/DC power supply module is arranged in each independent product to supply power for the aviation airborne electronic products, and the condition of the DC/DC power supply module is directly related to flight safety. With the development of the testing technology, the DC/DC power module generally adopts the automatic testing technology, so that the testing efficiency is improved, but a plurality of defects still exist: the testing devices are all special equipment, the hardware resource configuration is complex, the manufacturing cost is high, and the resource utilization rate is low.
The 'avionics technology' volume 47, page 41-48, published in 2016, discloses the design of a common platform for onboard power modules. The test platform comprises 4 groups of cabinets, 1 alternating current power supply, 2 direct current power supplies, 1 peak voltage generator, 8 electronic loads, an oscilloscope, a measurement and control adapter and a computer. The platform can realize the automatic test of power module. The defect is that the measurement and control adapters are required to be manufactured according to different power modules, and the development period and the development cost are increased.
"microprocessor" 6 th published in 12.2017 discloses a design of an automatic test system for a DC/DC power supply module. The test platform comprises a customized cabinet, 2 direct current power supplies, a digital multimeter, an electronic load, an oscilloscope, a central console, a test board and a computer. The platform can realize automatic test of the DC/DC power supply module. The disadvantage is that the power panel implemented for various DC/DC power modules cannot be tested.
Disclosure of Invention
In order to solve the technical problem, the invention provides a universal adapter board for testing a DC/DC power supply module and a testing method thereof.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a universal adapter board for testing a DC/DC power supply module comprises an adapter board power supply and state indication circuit module, a power supply filter capacitor bank module, an interface connection relation module, a direct current electronic load configuration module, a multimeter and oscilloscope configuration module, an adapter board ID identification circuit module, an AMC2623D-1 matrix switch configuration module, an AMC 2623-1 matrix switch configuration module and a power supply module, wherein the adapter board power supply and state indication circuit module is used for supplying power supply voltage to the DC/DC power supply module and displaying the working state of a power supply;
the AMC2623D-1 matrix switch configuration module is correspondingly connected with the adapter plate power supply and state indication circuit module, the interface connection relation module, the direct current electronic load configuration module, the universal meter and the oscilloscope configuration module respectively, and the adapter plate power supply and state indication circuit module is also connected with the power supply filter capacitor bank module.
Further, the AMC2623D-1 matrix switch configuration module includes an E01 terminal, an E03 terminal, an E05 terminal, an E07 terminal connected to the patch panel power supply and status indication circuit module, D03 to D27 terminals and B03 to B27 terminals connected to the interface connection relation module, an E17 terminal, an E19 terminal, an E21 terminal, an E23 terminal, an E25 terminal, an E27 terminal, an E29 terminal, an E31 terminal connected to the dc electronic load configuration module, an E09 terminal, an E11 terminal, an E13 terminal, an E15 terminal connected to the multimeter and oscilloscope configuration module, and a D01 terminal, a D02 terminal, a B01 terminal, and a B02 terminal for grounding.
Furthermore, the power supply and status indication circuit module of the adapter board comprises an end a1 to an end a4 connected to GND, an end B1 to an end B4 correspondingly connected to the ends E01, E03, E05 and E07, an end R1 and an end LED1 correspondingly connected to the end B1, an end R2 and an end LED2 correspondingly connected to the end B2, an end R3 and an end LED3 correspondingly connected to the end B3, an end R4 and an end LED4 correspondingly connected to the end B4, and ends B1 to an end B4 correspondingly connected to the power filter capacitor bank module.
Further, the power filter capacitor bank module comprises anodes of capacitors C1 and C11 connected with a B1 end, anodes of capacitors C2 and C22 connected with a B2 end, anodes of capacitors C3 and C33 connected with a B3 end, and anodes of capacitors C4 and C44 connected with a B4 end.
Further, the interfacing relationship module includes 1 to 25 terminals respectively connected to the terminals D03 to D27 and B03 to B27.
Further, the dc electronic load configuration module includes an SLM1 and an SLM2, where the SLM1 is provided with terminals 1 to 3 connected to the end E17, terminals 4 to 6 connected to the end E19, terminals 7 to 9 connected to the end E21, and terminals 10 to 12 connected to the end E23, and the SLM2 is provided with terminals 1 to 3 connected to the end E25, terminals 4 to 6 connected to the end E27, terminals 7 to 9 connected to the end E29, and terminals 10 to 12 connected to the end E31.
Furthermore, the multimeter and oscilloscope configuration module comprises an end E17 connected with the positive end of the multimeter, an end E18 and an end E19 connected with the negative end of the multimeter, an end E21, an end E23, an end E25 and an end E27 connected with the oscilloscope, and an end E22, an end E24, an end E26 and an end E28 connected with the earth.
A DC/DC power module test method of a universal adapter board for applying DC/DC power module test includes a voltage regulation rate test method, which includes the following steps:
(A) firstly, manufacturing a transfer cable, then connecting the universal transfer adapter plate with a tested DC/DC power supply module through the transfer cable, and then connecting the universal transfer adapter plate with a universal test platform;
(B) compiling a debugging program, testing whether the universal adapter board meets the test requirement of the tested DC/DC power supply module, starting the test if the universal adapter board is qualified, and returning to the step (A) for retesting if the universal adapter board is unqualified;
(C) compiling a software program, and carrying out parameter configuration of port input voltage, SLM direct current electronic load and acquisition of output signals through software;
(D) running a program, wherein an input port on a tested DC/DC power supply module is selectively connected with input voltage excitation through an AMC2623D-1 matrix switch configuration module, an output port is selectively connected with a direct current electronic load, and an output voltage value U1 is read back through a universal meter and an oscilloscope configuration module;
(E) setting input voltage as minimum voltage and maximum voltage through software, and reading an output voltage value U2 back through a universal meter and an oscilloscope configuration module;
(F) calculating the voltage adjustment rate by a formula of U2-U1 | U1 multiplied by 100 percent, and uploading the calculation result to a result report to display whether the voltage adjustment rate is qualified or not;
(G) after the test is finished, the equipment is detached and properly stored.
A DC/DC power module test method of a universal adapter board for applying DC/DC power module test includes a load regulation rate test method, which includes the following steps:
firstly, manufacturing a transfer cable, then connecting the universal transfer adapter plate with a tested DC/DC power supply module through the transfer cable, and then connecting the universal transfer adapter plate with a universal test platform;
writing a debugging program, testing whether the universal adapter board meets the testing requirement of the tested DC/DC power supply module, if the testing is qualified, starting the testing, and if the testing is unqualified, returning to the step (one) for retesting;
writing a software program, and carrying out parameter configuration of port input voltage, SLM direct current electronic load and acquisition of output signals through software;
running a program, wherein an input port on a tested DC/DC power supply module is selectively connected with input voltage excitation through an AMC2623D-1 matrix switch configuration module, an output port is selectively connected with a direct current electronic load, and an output voltage value U1 is read back through a universal meter and an oscilloscope configuration module;
fifthly, the output load is disconnected through software setting, and an output voltage value U2 is read back through a universal meter and an oscilloscope configuration module;
setting the SLM direct current electronic load as a middle value and a maximum value through software, and reading an output voltage value U3 back through a universal meter and an oscilloscope configuration module;
seventhly, calculating the load adjustment rate according to a formula of | U3-U2 | U1 multiplied by 100%, and uploading the calculation result to a result report to display whether the load adjustment rate is qualified or not;
(eighth) after the test is finished, the equipment is detached and properly stored.
A DC/DC power module test method of a universal adapter board for applying DC/DC power module test includes an output voltage ripple test method, which includes the following steps:
(a) firstly, manufacturing a transfer cable, then connecting the universal transfer adapter plate with a tested DC/DC power supply module through the transfer cable, and then connecting the universal transfer adapter plate with a universal test platform;
(b) compiling a debugging program, testing whether the universal adapter board meets the test requirement of the tested DC/DC power supply module, starting the test if the universal adapter board is qualified, and returning to the step (a) for retesting if the universal adapter board is unqualified;
(c) compiling a software program, and carrying out parameter configuration of port input voltage, SLM direct current electronic load and acquisition of output signals through software;
(d) running a program, wherein an input port on a tested DC/DC power supply module is selectively connected with input voltage excitation through an AMC2623D-1 matrix switch configuration module, an output port is selectively connected with a direct current electronic load, and ripple peak values of output voltage are read back through a universal meter and an oscilloscope configuration module;
(e) uploading the ripple peak value of the read-back output voltage to a result report to display whether the output voltage ripple is qualified or not;
(f) after the test is finished, the equipment is detached and properly stored.
The invention has the beneficial effects that:
the universal switching adapter plate is suitable for testing DC/DC power supply modules of various airborne electronic products, special equipment does not need to be developed, only a switching cable needs to be manufactured, the development period is short, the operation is easy, and meanwhile, the cost is saved; the testing method can realize the automatic testing of the DC/DC power supply module, improve the testing efficiency and save the labor cost, and in addition, the testing method can also realize the performance testing and the fault quick positioning of the DC/DC power supply module, thereby being convenient for maintenance and troubleshooting.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic diagram of a power supply and status indication circuit module of a transfer board of the universal transfer adapter board according to the present invention;
FIG. 2 is a schematic diagram of a power filter capacitor bank module in the universal adapter board according to the present invention;
FIG. 3 is a schematic diagram of an interface connection relationship module in the universal adapter board according to the present invention;
FIG. 4 is a schematic diagram of a DC electronic load configuration module in the universal adapter board of the present invention;
FIG. 5 is a schematic diagram of a universal meter and oscilloscope configuration module in the universal adapter board of the present invention;
FIG. 6 is a schematic diagram of a circuit module for identifying the ID of the adapter plate in the universal adapter plate according to the present invention;
FIG. 7 is a schematic diagram of an AMC2623D-1 matrix switch configuration module in the universal adapter board according to the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained in the following with the accompanying drawings and the embodiments.
As shown in fig. 1 to 7, a universal adapter board for testing a DC/DC power module includes a power supply and status indication circuit module of the adapter board for providing a power supply voltage to the DC/DC power module and displaying a working status of the power supply, a power filter capacitor bank module for filtering incoming lines of the power supply, an interface connection relation module for connecting with the DC/DC power module, a DC electronic load configuration module for providing a load to an output portion of the DC/DC power module, a multimeter and oscilloscope configuration module for collecting and measuring signals of the DC/DC power module, an adapter board ID identification circuit module for detecting whether the universal adapter board is correctly installed, an AMC2623D-1 for switching and cross-linking interface signals between the DC electronic load configuration module and the DC/DC power module, and an AMC D-1 for implementing the power supply and status indication circuit module of the adapter board, the multimeter and oscilloscope configuration module, and the oscilloscope configuration module A matrix switch configuration module;
the AMC2623D-1 matrix switch configuration module is correspondingly connected with the adapter plate power supply and state indication circuit module, the interface connection relation module, the direct current electronic load configuration module, the universal meter and the oscilloscope configuration module respectively, and the adapter plate power supply and state indication circuit module is also connected with the power supply filter capacitor bank module.
As a further improvement of the present invention, the AMC2623D-1 matrix switch configuration module includes an E01 terminal, an E03 terminal, an E05 terminal, an E07 terminal connected to the patch panel power supply and status indication circuit module, D03 to D27 terminals and B03 to B27 terminals connected to the interface connection relation module, an E17 terminal, an E19 terminal, an E21 terminal, an E23 terminal, an E25 terminal, an E27 terminal, an E29 terminal, an E31 terminal connected to the dc electronic load configuration module, an E09 terminal, an E11 terminal, an E13 terminal, an E15 terminal connected to the multimeter and oscilloscope configuration module, and a D01 terminal, a D02 terminal, a B01 terminal, and a B02 terminal for grounding.
The AMC2623D-1 matrix switch configuration module is mainly used for realizing switching and crosslinking between related resources such as a power supply, an oscilloscope and an electronic load and a DC/DC power supply module, wherein the AMC2623D-1 matrix switch configuration module is used for switching the oscilloscope or the multimeter to acquire output signals, switching the power supply to provide input end power supply voltage and switching the electronic load to provide the load of the output voltage.
As a further improvement of the present invention, the power supply and status indication circuit module of the patch panel includes an a 1-a 4 terminal connected to GND, a B1-B4 terminal correspondingly connected to the E01 terminal, the E03 terminal, the E05 terminal, and the E07 terminal, an R1 and an LED1 correspondingly connected to the B1 terminal, an R2 and an LED2 correspondingly connected to the B2 terminal, an R3 and an LED3 correspondingly connected to the B3 terminal, an R4 and an LED4 correspondingly connected to the B4 terminal, and a B1-B4 terminal correspondingly connected to the power filter capacitor bank module.
The adapter plate power supply and state indication circuit module comprises a power supply part and a work indication state part, wherein the power supply part is mainly used for supplying power supply voltage to the DC/DC power supply module; the status indicating circuit is indicated by light emitting diodes LED 1-LED 4, and the working status of the power supply can be observed.
As a further improvement of the present invention, the power filter capacitor bank module includes anodes of capacitors C1 and C11 connected to a B1 end, anodes of capacitors C2 and C22 connected to a B2 end, anodes of capacitors C3 and C33 connected to a B3 end, and anodes of capacitors C4 and C44 connected to a B4 end.
The power supply filter capacitor bank module is mainly used for filtering the power supply part and reducing interference.
As a further improvement of the present invention, the interfacing relationship module includes 1 to 25 terminals respectively connected to the terminals D03 to D27 and the terminals B03 to B27.
The interface connection relation module adopts a unified 25-pin plug, so that the power supply module can be conveniently and uniformly connected to the plug.
As a further improvement of the present invention, the dc electronic load configuration module includes an SLM1 and an SLM2, wherein the SLM1 is provided with terminals 1 to 3 connected to the end E17, terminals 4 to 6 connected to the end E19, terminals 7 to 9 connected to the end E21, and terminals 10 to 12 connected to the end E23, and the SLM2 is provided with terminals 1 to 3 connected to the end E25, terminals 4 to 6 connected to the end E27, terminals 7 to 9 connected to the end E29, and terminals 10 to 12 connected to the end E31.
The direct current electronic load configuration module is mainly used for providing loads for output parts on the DC/DC power supply module.
As a further improvement of the invention, the multimeter and oscilloscope configuration module comprises an E17 end connected with the positive end of the multimeter, an E18 end and an E19 end connected with the negative end of the multimeter, an E21 end, an E23 end, an E25 end and an E27 end connected with the oscilloscope, and an E22 end, an E24 end, an E26 end and an E28 end which are grounded.
The universal meter and oscilloscope configuration module is mainly used for collecting and measuring signals through the universal meter and the oscilloscope.
The adapter plate ID identification circuit module is mainly used for detecting whether a universal adapter plate required by the test is correctly installed according to requirements during the test so as to prevent the damage of human errors to the tested DC/DC power supply module.
When the adapter plate ID identification circuit module is executed, the digital signals acquired by B32 to B24 of the plug CZ1 should be "00000111", and the acquired data should be "01E 0" finally by software conversion. And if the collected data is incorrect, the test jumps to 'system power off, and the test is finished'. And then checking whether the switching hardware is selected and connected correctly, and then continuing testing. The B32-B24 of the partial plug CZ1 on the adapter plate ID recognition circuit module are grounded, and the B24-B27 are connected together.
In the invention, a plurality of columns and rows on an AMC2623D-1 matrix switch configuration module adopt a many-to-one mode, the connection or disconnection between a plurality of columns and a row on the AMC2623D-1 matrix switch configuration module can be realized through software setting, and the connection or disconnection between a row and a column can also be realized because the types of power modules are different and the definition of plug pins is also different, and the connection of the AMC2623D-1 matrix switch configuration module is controlled by software to access a corresponding input power supply, an output load and an oscilloscope acquisition port. Meanwhile, in order to facilitate testing, the universal adapter board can convert plug pins of power modules of different models into a unified DB25 interface, and during testing, corresponding adapter cables are manufactured according to different power modules and connected to the universal adapter board to perform testing.
A DC/DC power module test method of a universal adapter board for applying DC/DC power module test includes a voltage regulation rate test method, a load regulation rate test method and an output voltage ripple test method.
The invention requires testing on a universal test platform. Therefore, the testing method comprises a certain type of universal testing platform, a universal adapter board and a tested DC/DC power supply module.
A certain type of universal test platform provides an industrial personal computer, a program-controlled power supply, a matrix switch module, an oscilloscope, a universal meter, four paths of direct current electronic loads and a screen key mouse.
The industrial personal computer is an upper computer of the testing device and is responsible for completing control and parameter display of each hardware resource; the program control power supply is controlled by the industrial personal computer and supplies power to the tested DC/DC power supply module; the matrix switch module is used for switching input power supply, output load and output voltage signal acquisition circuits in the test process; 2 paths of matrix switches, 8 columns and X32 rows of each path; the oscilloscope and the universal meter are used for measuring the output voltage value, ripple waves and the like of the power supply to be measured and communicating with the industrial personal computer; the screen key mouse is used for providing man-machine interface operation ports such as a screen, a keyboard, a mouse and the like.
Before various tests are carried out, preparation work before the tests is required, and the preparation work is as follows: firstly, inquiring data to obtain the plug pin definition of a tested DC/DC power module, so as to be convenient for the reconfiguration of the data of the universal adapter plate; then, manufacturing a switching cable, taking out the universal switching adapter plate, confirming that the name and the ID number of the universal switching adapter plate are correct, and inserting the universal switching adapter plate into a slot on a test switching box of the universal test platform; then, compiling a software program through an industrial personal computer to carry out port configuration, so that the interface definition of a plug X1 part in an interface connection relation module on the universal adapter board meets the test requirement of the tested DC/DC power supply module; and finally, debugging the program, namely measuring whether the interface connection relation module of the plug X1 on the universal adapter board meets the requirements or not by using the resistance grade of the universal meter, and testing the performance once when the test is qualified, if the test is not qualified, returning to the process for continuing the test.
Then, the voltage regulation rate testing steps are as follows:
(A) and compiling a software program, and carrying out parameter configuration of port input voltage, SLM direct current electronic load and acquisition of output signals through software.
(B) And running a program, wherein an input port on the tested DC/DC power supply module is selectively connected with input voltage excitation through an AMC2623D-1 matrix switch configuration module, an output port is selectively connected with a direct current electronic load, and an output voltage value U1 is read back through a universal meter and an oscilloscope configuration module.
(C) The input voltage is set to be the minimum voltage and the maximum voltage through software, and the output voltage value U2 is read back through a universal meter and an oscilloscope configuration module.
(D) And calculating the voltage adjustment rate by the formula | U2-U1 | U1 multiplied by 100%, and uploading the calculation result to a result report to display whether the voltage adjustment rate is qualified or not.
As a further improvement of the invention, the load regulation rate test steps are as follows:
writing a software program, and carrying out parameter configuration of port input voltage, SLM direct current electronic load and acquisition of output signals through software.
And (II) running a program, wherein an input port on the tested DC/DC power supply module is selectively connected with input voltage excitation through an AMC2623D-1 matrix switch configuration module, an output port is selectively connected with a direct current electronic load, and an output voltage value U1 is read back through a universal meter and an oscilloscope configuration module.
And (III) setting and disconnecting the output load through software, and reading an output voltage value U2 back through a universal meter and an oscilloscope configuration module.
And (IV) setting the SLM direct current electronic load as a middle value and a maximum value through software, and reading an output voltage value U3 back through a universal meter and an oscilloscope configuration module.
And fifthly, calculating the load adjustment rate through the formula |. U3-U2 |/U1 × 100%, and uploading the calculation result to a result report to display whether the load adjustment rate is qualified or not.
As a further improvement of the present invention, the output voltage ripple test specifically comprises the following steps:
(a) compiling a software program, and carrying out parameter configuration of port input voltage, SLM direct current electronic load and acquisition of output signals through software;
(b) running a program, wherein an input port on a tested DC/DC power supply module is selectively connected with input voltage excitation through an AMC2623D-1 matrix switch configuration module, an output port is selectively connected with a direct current electronic load, and ripple peak values of output voltage are read back through a universal meter and an oscilloscope configuration module;
(c) and uploading the ripple peak value of the read-back output voltage to a result report to display whether the output voltage ripple is qualified or not.
After the three voltage regulation rates, the load regulation rate and the output voltage ripple test on the tested DC/DC power supply module are finished, relevant instruments on the equipment need to be reset through software, then the adapter cable and the tested DC/DC power supply module are taken down, the universal adapter plate is pulled out, and the universal adapter plate is properly stored.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a general switching adapter plate that DC/DC power module test was used which characterized in that: comprises a circuit module for supplying power to a DC/DC power module and displaying the working state of a power supply, a power supply filter capacitor bank module for filtering the incoming line of the power supply, an interface connection relation module for connecting with the DC/DC power module, a DC electronic load configuration module for providing a load for the output part of the DC/DC power module, a multimeter and oscilloscope configuration module for collecting and measuring the signals of the DC/DC power module, the system comprises an adapter plate ID identification circuit module for detecting whether a universal adapter plate is correctly installed, and an AMC2623D-1 matrix switch configuration module for switching and crosslinking interface signals of the adapter plate power supply and state indication circuit module, a universal meter and oscilloscope configuration module, a direct current electronic load configuration module and a DC/DC power supply module;
the AMC2623D-1 matrix switch configuration module is correspondingly connected with the adapter plate power supply and state indication circuit module, the interface connection relation module, the direct current electronic load configuration module, the universal meter and the oscilloscope configuration module respectively, and the adapter plate power supply and state indication circuit module is also connected with the power supply filter capacitor bank module.
2. The universal adapter board for testing the DC/DC power supply module according to claim 1, wherein: the AMC2623D-1 matrix switch configuration module comprises an E01 end, an E03 end, an E05 end and an E07 end which are connected with the adapter board power supply and state indication circuit module, D03 to D27 ends and B03 to B27 ends which are connected with the interface connection relation module, an E17 end, an E19 end, an E21 end, an E23 end, an E25 end, an E27 end, an E29 end and an E31 end which are connected with the direct current electronic load configuration module, an E09 end, an E11 end, an E13 end and an E15 end which are connected with the universal meter and oscilloscope configuration module, and a D01 end, a D02 end, a B01 end and a B02 end which are used for grounding.
3. The universal adapter board for testing the DC/DC power supply module according to claim 2, wherein: the power supply and state indication circuit module of the adapter plate comprises an end A1 to an end A4 connected with GND, an end B1 to an end B4 correspondingly connected with an end E01, an end E03, an end E05 and an end E07, an end R1 and an end LED1 correspondingly connected with an end B1, an end R2 and an end LED2 correspondingly connected with an end B2, an end R3 and an end LED3 correspondingly connected with an end B3, an end R4 and an end LED4 correspondingly connected with an end B4, and ends B1 to an end B4 correspondingly connected with the power supply filter capacitor bank module.
4. The universal adapter board for testing the DC/DC power supply module according to claim 3, wherein: the power supply filter capacitor bank module comprises capacitors C1 and C11 anodes correspondingly connected with a B1 end, capacitors C2 and C22 anodes correspondingly connected with a B2 end, capacitors C3 and C33 anodes correspondingly connected with a B3 end, and capacitors C4 and C44 anodes correspondingly connected with a B4 end.
5. The universal adapter board for testing the DC/DC power supply module according to claim 2, wherein: the interface connection relation module comprises 1-25 ends which are respectively connected with the ends D03-D27 and the ends B03-B27.
6. The universal adapter board for testing the DC/DC power supply module according to claim 2, wherein: the direct current electronic load configuration module comprises an SLM1 and an SLM2, wherein the SLM1 is provided with terminals 1 to 3 connected with an end E17, terminals 4 to 6 connected with an end E19, terminals 7 to 9 connected with an end E21, and terminals 10 to 12 connected with an end E23, and the SLM2 is provided with terminals 1 to 3 connected with an end E25, terminals 4 to 6 connected with an end E27, terminals 7 to 9 connected with an end E29, and terminals 10 to 12 connected with an end E31.
7. The universal adapter board for testing the DC/DC power supply module according to claim 2, wherein: the universal meter and oscilloscope configuration module comprises an E17 end connected with the positive end of the universal meter, an E18 end and an E19 end connected with the negative end of the universal meter, an E21 end, an E23 end, an E25 end and an E27 end connected with the oscilloscope, and an E22 end, an E24 end, an E26 end and an E28 end which are grounded.
8. A DC/DC power module testing method applied to the universal adapter board for DC/DC power module testing according to any one of claims 1 to 7, wherein: the test method comprises a voltage regulation rate test method, and specifically comprises the following steps:
(A) firstly, manufacturing a transfer cable, then connecting the universal transfer adapter plate with a tested DC/DC power supply module through the transfer cable, and then connecting the universal transfer adapter plate with a universal test platform;
(B) compiling a debugging program, testing whether the universal adapter board meets the test requirement of the tested DC/DC power supply module, starting the test if the universal adapter board is qualified, and returning to the step (A) for retesting if the universal adapter board is unqualified;
(C) compiling a software program, and carrying out parameter configuration of port input voltage, SLM direct current electronic load and acquisition of output signals through software;
(D) running a program, wherein an input port on a tested DC/DC power supply module is selectively connected with input voltage excitation through an AMC2623D-1 matrix switch configuration module, an output port is selectively connected with a direct current electronic load, and an output voltage value U1 is read back through a universal meter and an oscilloscope configuration module;
(E) setting input voltage as minimum voltage and maximum voltage through software, and reading an output voltage value U2 back through a universal meter and an oscilloscope configuration module;
(F) calculating the voltage adjustment rate by a formula of U2-U1 | U1 multiplied by 100 percent, and uploading the calculation result to a result report to display whether the voltage adjustment rate is qualified or not;
(G) after the test is finished, the equipment is detached and properly stored.
9. A DC/DC power module testing method applied to the universal adapter board for DC/DC power module testing according to any one of claims 1 to 7, wherein: the test method comprises a load regulation rate test method, and comprises the following specific steps:
firstly, manufacturing a transfer cable, then connecting the universal transfer adapter plate with a tested DC/DC power supply module through the transfer cable, and then connecting the universal transfer adapter plate with a universal test platform;
writing a debugging program, testing whether the universal adapter board meets the testing requirement of the tested DC/DC power supply module, if the testing is qualified, starting the testing, and if the testing is unqualified, returning to the step (one) for retesting;
writing a software program, and carrying out parameter configuration of port input voltage, SLM direct current electronic load and acquisition of output signals through software;
running a program, wherein an input port on a tested DC/DC power supply module is selectively connected with input voltage excitation through an AMC2623D-1 matrix switch configuration module, an output port is selectively connected with a direct current electronic load, and an output voltage value U1 is read back through a universal meter and an oscilloscope configuration module;
fifthly, the output load is disconnected through software setting, and an output voltage value U2 is read back through a universal meter and an oscilloscope configuration module;
setting the SLM direct current electronic load as a middle value and a maximum value through software, and reading an output voltage value U3 back through a universal meter and an oscilloscope configuration module;
seventhly, calculating the load adjustment rate according to a formula of | U3-U2 | U1 multiplied by 100%, and uploading the calculation result to a result report to display whether the load adjustment rate is qualified or not;
(eighth) after the test is finished, the equipment is detached and properly stored.
10. A DC/DC power module testing method applied to the universal adapter board for DC/DC power module testing according to any one of claims 1 to 7, wherein: the test method comprises an output voltage ripple test method, and specifically comprises the following steps:
(a) firstly, manufacturing a transfer cable, then connecting the universal transfer adapter plate with a tested DC/DC power supply module through the transfer cable, and then connecting the universal transfer adapter plate with a universal test platform;
(b) compiling a debugging program, testing whether the universal adapter board meets the test requirement of the tested DC/DC power supply module, starting the test if the universal adapter board is qualified, and returning to the step (a) for retesting if the universal adapter board is unqualified;
(c) compiling a software program, and carrying out parameter configuration of port input voltage, SLM direct current electronic load and acquisition of output signals through software;
(d) running a program, wherein an input port on a tested DC/DC power supply module is selectively connected with input voltage excitation through an AMC2623D-1 matrix switch configuration module, an output port is selectively connected with a direct current electronic load, and ripple peak values of output voltage are read back through a universal meter and an oscilloscope configuration module;
(e) uploading the ripple peak value of the read-back output voltage to a result report to display whether the output voltage ripple is qualified or not;
(f) after the test is finished, the equipment is detached and properly stored.
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| CN202011338672.5A CN112485701A (en) | 2020-11-25 | 2020-11-25 | Universal switching adapter plate for testing DC/DC power supply module and testing method thereof |
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