CN-121995188-A - Pulse testing method and pulse testing platform

CN121995188ACN 121995188 ACN121995188 ACN 121995188ACN-121995188-A

Abstract

The application discloses a pulse testing method and a pulse testing platform. The device testing system comprises a control module, a driving module, a testing module, a collecting module, a control module and a control module, wherein the control module sends control signals to the driving module, the driving module generates pulse driving signals according to the control signals and sends the pulse driving signals to the testing module and the power supply module, the power supply module provides corresponding testing voltages for a device to be tested based on the pulse driving signals, the testing module conducts pulse testing on the device to be tested based on the pulse driving signals, the collecting module collects waveform data of the pulse testing and uploads the waveform data to the control module, and the control module receives the waveform data and generates a pulse testing report based on the waveform data. Therefore, the full-flow operation of one-key automatic pulse test, signal acquisition and analysis of the power device can be realized, the test efficiency is correspondingly improved, meanwhile, different power devices are compatible, the power device to be tested can be placed on a pulse test platform for pulse test, and the parameters do not need to be manually adjusted.

Inventors

HU ANPING
FANG DA
LI TAO
WANG YONG
LV ZHENGHUA
XU LANG

Assignees

重庆览山电子有限公司

Dates

Publication Date: 20260508
Application Date: 20260204

Claims (10)

1. The pulse testing method is characterized by being applied to a pulse testing platform, wherein the pulse testing platform comprises a power supply module, a driving module, a testing module, an acquisition module and a control module, the control module is respectively connected with the acquisition module, the power supply module and the driving module, the driving module and the power supply module are respectively connected with the testing module, and the testing module is also respectively connected with the acquisition module and a device to be tested; The method comprises the following steps: the control module sends a control signal to the driving module; The driving module receives the control signal, generates a pulse driving signal according to the control signal, and sends the pulse driving signal to the testing module and the power supply module; the power supply module receives the pulse driving signal and provides corresponding test voltage for the device to be tested based on the pulse driving signal so that the device to be tested is driven based on the test voltage; the test module receives the pulse driving signal and performs pulse test on the device to be tested based on the pulse driving signal; The acquisition module acquires waveform data of the pulse test and uploads the waveform data to the control module; the control module receives the waveform data and generates a pulse test report based on the waveform data.
2. The pulse testing method of claim 1, wherein before the control module sends a control signal to the drive module, the method further comprises: The control module performs self-checking operation on the driving module, the power supply module, the testing module and the acquisition module; when the self-check meets the preset condition, the control module judges that the pulse test platform is normal and generates the control signal; When the self-check does not meet the preset condition, the control module judges that the pulse test platform has a fault and triggers an audible and visual alarm.
3. The pulse testing method of claim 2, wherein the pulse testing platform further comprises a protection module, the protection module being connected to the power supply module and the testing module, respectively; When the self-check meets the preset condition, the control module judges that the pulse test platform has a fault and triggers an audible and visual alarm, and the method comprises the following steps: when the self-check does not meet the preset condition, the control module judges that the pulse test platform has a fault and generates a fault signal; The control module sends the fault signal to the protection module, and the protection module receives the fault signal and cuts off the connection between the power supply module and the test module based on the fault signal so as to inhibit the pulse test platform from starting; And the control module records self-checking failure information and triggers audible and visual alarm.
4. The pulse testing method of claim 1, wherein the pulse testing comprises a single pulse testing and a double pulse testing; The control module sends a control signal to the driving module, comprising: the control module sends a control signal to the driving module according to the type of the pulse test, and the control module comprises: When the pulse test is a single pulse test, the control module sends a first control signal to the driving module; and when the pulse test is a double pulse test, the control module sends a second control signal to the driving module.
5. The pulse testing method of claim 4, wherein the driving module receives the control signal, generates a pulse driving signal according to the control signal, and transmits the pulse driving signal to the testing module and the power supply module, comprising: The driving module receives the control signal and configures a single pulse driving parameter when the control signal is the first control signal, and When the control signal is the second control signal, configuring a double pulse driving parameter; the driving module sends the configured pulse driving parameters to the control module, and the control module receives the pulse driving parameters and judges the pulse driving parameters; if the pulse driving parameters are correct, the control module sends a braking signal to the driving module so that the driving module generates a pulse driving signal according to the braking signal; If the pulse driving parameters are wrong, the control module sends a correction signal to the driving module so that the driving module reconfigures the pulse driving parameters; The driving module sends the pulse driving signal to the testing module and the power supply module.
6. The pulse testing method according to claim 1, wherein the testing module comprises a load unit and a testing unit, the load unit is connected with the testing unit, and the testing unit is further connected with the driving module, the power supply module, the acquisition module and the device under test respectively; the test module receives the pulse driving signal and carries out pulse test on the device to be tested based on the pulse driving signal, and the test module comprises the following steps: the test unit receives the pulse driving signal and sends the pulse driving signal to the device to be tested; The device to be tested receives the pulse driving signal and the test voltage, and performs pulse test based on the pulse driving signal and the test voltage; the load unit maintains stable pulse test of the device to be tested through the test unit.
7. The pulse testing method of claim 6, wherein the load cell comprises an inductive load; The load unit maintains stable pulse test of the device under test through the test unit, and comprises: the control module sets a target current value and a target inductance value according to the device to be tested, and sends the target current value and the target inductance value to the load unit; The load unit adjusts the inductive load inductance value according to the target inductance value so as to initialize the inductive load; And after the pulse test is started on the device to be tested, the load unit maintains the loop current of the device to be tested in a preset current floating interval of the target current value.
8. The pulse testing method of claim 6, wherein the device under test receives the pulse drive signal and the test voltage and performs pulse testing based on the pulse drive signal and the test voltage, comprising: The device to be tested receives the test voltage and starts based on the test voltage; The device to be tested receives the pulse driving signal, is conducted based on the pulse driving signal, and forms a current loop for the acquisition module to acquire waveform data of pulse testing of the current loop.
9. The pulse testing method according to claim 1, wherein the acquisition module comprises an oscilloscope and an acquisition unit, the acquisition unit is respectively connected with the oscilloscope and the testing module, and the oscilloscope is further connected with the control module; The acquisition module acquires the waveform data of the pulse test and uploads the waveform data to the control module, and the acquisition module comprises: the acquisition unit acts on the test point position of the test module to acquire the waveform data of the pulse test; the acquisition unit uploads the acquired waveform data to the oscilloscope, and the oscilloscope receives and displays the waveform data; and the oscillograph uploads the waveform data to the control module.
10. The pulse test platform is characterized by comprising a power supply module, a driving module, a test module, an acquisition module and a control module, wherein the control module is respectively connected with the acquisition module, the power supply module and the driving module, the driving module and the power supply module are respectively connected with the test module, and the test module is also respectively connected with the acquisition module and a device to be tested; the control module is configured to send a control signal to the drive module; The driving module is configured to receive the control signal, generate a pulse driving signal according to the control signal, and send the pulse driving signal to the testing module and the power supply module; The power supply module is configured to receive the pulse driving signal and provide a corresponding test voltage for the device to be tested based on the pulse driving signal so that the device to be tested is driven based on the test voltage; The test module is configured to receive the pulse driving signal and perform pulse test on the device to be tested based on the pulse driving signal; The acquisition module is configured to acquire waveform data of the pulse test and upload the waveform data to the control module; The control module is further configured to receive the waveform data and generate a pulse test report based on the waveform data.

Description

Pulse testing method and pulse testing platform Technical Field The application belongs to the technical field of power device testing, and particularly relates to a pulse testing method and a pulse testing platform. Background With the advent of the intelligent core age, the servo motor controller is a key for realizing an intelligent algorithm, and also becomes a core unit in the fields of vehicle-mounted, household appliances, industrial robots and the like, and the performance of the servo motor controller depends on indexes such as pulse signal response, switching delay, dead zone setting, anti-interference capability and the like of power devices such as SICMOSFET (silicon carbide field effect transistor), insulated Gate Bipolar Transistor (IGBT) and the like. Existing pulse testing for power devices generally sets a fixed frame for testing a single type of power device. Therefore, in the process of realizing the embodiment of the application, the inventor finds that at least the following problems exist in the related art, namely, the test depends on manual intervention, the test compatibility is poor, the test requirements of different power devices cannot be adapted, and the test safety is insufficient. Disclosure of Invention The embodiment of the application mainly solves the technical problems of low manual operation test efficiency and insufficient test compatibility of multiple types of devices when pulse measurement of the power devices is carried out. In order to solve the technical problems, the technical scheme adopted by the embodiment of the application is that the pulse test method is applied to a pulse test platform, the pulse test platform comprises a power supply module, a driving module, a test module, an acquisition module and a control module, the control module is respectively connected with the acquisition module, the power supply module and the driving module, the driving module and the power supply module are respectively connected with the test module, the test module is respectively connected with the acquisition module and a device to be tested, the control module sends a control signal to the driving module, the driving module receives the control signal, generates a pulse driving signal according to the control signal and sends the pulse driving signal to the test module and the power supply module, the power supply module receives the pulse driving signal and provides corresponding test voltage for the device to be tested based on the pulse driving signal, so that the device to be tested is driven based on the test voltage, the test module receives the pulse driving signal and carries out pulse test on the device to be tested, the control module receives the pulse driving signal and carries out waveform data acquisition and waveform data transmission based on the pulse driving signal, and the waveform data acquisition module receives the waveform data. Optionally, before the control module sends the control signal to the driving module, the method further comprises the step that the control module performs self-checking operation on the driving module, the power supply module, the testing module and the acquisition module, when the self-checking meets preset conditions, the control module judges that the pulse testing platform is normal and generates the control signal, and when the self-checking does not meet the preset conditions, the control module judges that the pulse testing platform has faults and triggers acousto-optic alarm. The pulse test platform comprises a power supply module, a pulse test platform body, a control module, a protection module, a control module and a sound-light alarm, wherein the pulse test platform body comprises a power supply module, a power supply module and a test module, the protection module is respectively connected with the power supply module and the test module, when self-detection meets preset conditions, the control module judges that the pulse test platform body has faults and generates a fault signal when the self-detection does not meet the preset conditions, the control module sends the fault signal to the protection module, the protection module receives the fault signal and cuts off the connection between the power supply module and the test module based on the fault signal so as to inhibit the pulse test platform body from being started, and the control module records self-detection failure information and triggers the sound-light alarm. The control module sends control signals to the driving module according to the type of the pulse test, wherein the control module sends first control signals to the driving module when the pulse test is the single pulse test, and sends second control signals to the driving module when the pulse test is the double pulse test. Optionally, the driving module receives the control signal, generates a pulse driving signal according to the control signal, and sends the pulse driving signal to th