An igbt module frequency sweep test bench

Abstract

The invention discloses an IGBT module frequency sweep test platform, which comprises a support platform, a frequency sweep test group, an IGBT module positioning platform, a mounting platform and a lifting driving part, the lifting driving part is installed on the top of the supporting platform, and the bottom of the lifting driving part is the output end, the frequency sweep test group is installed on the support platform and connected to the output end of the lifting drive, the installation platform is installed on the support platform, the IGBT module positioning platform is set on the installation platform, and is located below the frequency sweep test group, the IGBT The module is positioned on the IGBT module positioning platform, and the lifting drive drives the frequency sweep test group to descend to connect with the IGBT module for frequency sweep test. The test bench has the advantages of high safety, low cost, can reduce test difficulty, and can improve test accuracy and test efficiency.

Description

technical field [0001] The invention mainly relates to IGBT frequency sweep test technology, in particular to an IGBT module frequency sweep test platform. Background technique [0002] IGBT (Insulated Gate Bipolar Transistor), an insulated gate bipolar transistor, is a composite fully-controlled voltage-driven power semiconductor device composed of BJT (bipolar transistor) and MOS (insulated gate field effect transistor), and has a MOSFET The advantages of high input impedance and low conduction voltage drop of GTR. The saturation voltage of GTR is low, the carrying current density is large, but the driving current is large; the driving power of MOSFET is small, the switching speed is fast, but the conduction voltage drop is large, and the current carrying density is small. The IGBT combines the advantages of the above two devices, with low driving power and low saturation voltage. [0003] In the previous IGBT module production process, the process of frequency sweep tes...

AI Technical Summary

Problems solved by technology

[0003] In the previous IGBT module production process, the process of frequency sweep test was not designed, which resulted in a high product failure rate. In order to improve the performance of product qualification rate, the process of frequency sweep test is gradually introduced. However, In the prototype test stage, the test benches that have not been formed are all tested by manual wiring and connection, which reduces the test efficiency on the one hand; on the other hand, increases the labor cost and makes the test difficult

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