Dynamic Load Analysis

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Dynamic load analysis has always been an important part of electrical system design. Understanding the transient behavior of a system as different loads are switched in and out during system operation is critical to obtaining proper component sizing and verifying overall system functionality.

For the automotive electrical system designer, this problem is further complicated by the presence of non-electrical loads (motors, solenoids, actuators, etc.) common in many systems. Traditional SPICE circuit simulation tools can adequately simulate the electrical content, but are incapable of effectively modeling non-electrical content. With SPICE the only method of model extensibility is an electrical equivalent macromodel. At best, these macromodels are a simple approximation, and, at worst, they can be a confusing array of controlled sources and cryptic feedback paths which can only be deciphered by the original model developer.