Why S-Parameters are superior for power module optimization
Learn more about power module optimization in the following chapters
Introduction: Power modules are high-power switching circuits used in electric vehicles, renewable energy, photovoltaics, wind, and many more applications. Compared to a single device in a package, a power module packages more than one IGBT, MOSFET and diode together.
Foundation for S-Parameter usage for power modules: Without the work described in this paper, the transformed S-Parameter cannot be simulated in a circuit simulator. The reason for this is that due to the standardization for high-speed applications, all reference pins are not exported, and the pin is assumed to be connected to the reference.
Solution to missing reference pins: The solution is demonstrated for the positive supply voltage called net VPP. For the simulation of the S-Parameter and the later used RLCG matrix, HyperLynx Advanced Solvers, such as Fast 3D and the Hybrid solver, are used
Full automatic SPICE wrapper transformation: For a direct integration into the Siemens power modules design suite, Xpedition VB.Net is recommended
Function test: The function test is done with the whole power module. For this reason, a complete SPICE simulation in Xpedition AMS was configured.
S-Parameter compliance check and optimization: It is recommended to use an S-Parameter compliance check before going into the functional simulation.
Conclusion: The work described in this paper enables us to provide design methods and a solution to withstand the high demand for new efficient power modules in the future.
References
Learn more about the full power module flow from Siemens on our power electronics page.