Surge impact test device
A test device and surge impact technology, applied in the direction of testing dielectric strength, etc., can solve the problems of single waveform, complex mechanical device, uneconomical, etc., and achieve the effect of adjustable amplitude, simple operation and low cost
Inactive Publication Date: 2013-02-06
武汉神动汽车电子电器股份有限公司
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Problems solved by technology
The width of the pulse often needs to be realized by adjusting the time constant of the loop, and the waveform is single. To form a waveform, it needs to be remanufactured separately, which is very uneconomical, and the surge pulse is formed by discharging. Due to its complicated mechanical device, High failure rate and high manufacturing cost
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[0038] Such as Figure 1~Figure 3 As shown, a surge impact test device includes a display module 6 for displaying the output pulse waveform and output pulse waveform parameters, and also includes:
[0039] The keyboard input module 7 is used to set the output pulse waveform parameters and send them to the control module 1,
[0040] The control module 1 is used to generate corresponding PWM signals and PFM signals according to the output pulse waveform parameters and the pulse peak voltage input from the detection module 5, output the PWM signals to the voltage regulation module 2, and output the PFM signals to the surge forming module 3 , outputting the polarity control signal to the polarity conversion module 4;
[0041] The voltage regulating module 2 is used to generate a corresponding pulse peak voltage according to the PWM signal;
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The invention discloses a surge impact test device which comprises a display module used for displaying an output pulse waveform and an output pulse waveform parameter, a keyboard input module, a control module, a voltage regulating module, a detection module, a surge forming module and a polarity conversion module, wherein the keyboard input module is used for setting the output pulse waveform parameter and transmitting the output pulse waveform parameter to the control module; the control module is used for generating a corresponding PWM (Pulse Width Modulation) signal and PFM (Pulse Frequency Modulation) signal according to the output pulse waveform parameter and a pulse peak voltage input from the detection module and also for outputting a polarity control signal; the voltage regulating module is used for generating a corresponding pulse peak voltage according to the PWM signal; the detection module is used for detecting the pulse peak voltage and transmitting the pulse peak voltage to the control module; the surge forming module is used for generating an output pulse waveform according to the pulse peak voltage and the PFM signal; and the polarity conversion module is used for controlling the polarity of the output of the output pulse waveform. The surge impact test device has the advantages of capability of realizing regulation and display of a pulse amplitude, simpleness and convenience in operation, adjustability in test pulse period, test pulse amplitude and test pulse polarity, small size and low cost.
Description
technical field [0001] The invention belongs to the field of electromagnetic compatibility, and more specifically relates to a surge impact test device, which is suitable for testing the ability of vehicle-mounted electronic equipment to withstand electric transient pulses. Background technique [0002] The traditional method of generating surge pulses usually uses high-voltage direct current to move through the hemisphere, adjust the gap between the hemispheres, break down the air discharge, and generate surge pulses. The traditional method of generating surge pulses usually uses high-voltage direct current to move through the hemisphere, adjust the gap between the hemispheres, break down the air discharge, and generate surge pulses. The width of the pulse often needs to be realized by adjusting the time constant of the loop, and the waveform is single. To form a waveform, it needs to be remanufactured separately, which is very uneconomical, and the surge pulse is formed by...
Claims
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IPC IPC(8): G01R31/12
Inventor 彭俊
Owner 武汉神动汽车电子电器股份有限公司