Case Study 2: Mixed-Technology Focus
Case Study 2 highlights VHDL-AMS as a mixed-technology, mixed-domain modeling language by focusing on a servo-controlled mechanical actuator. SystemVision is used to represent the system at various levels of abstraction: We first implement the entire servo-controlled mechanical actuator exclusively in the s-domain. After verifying top-level system requirements, we refine parts of the system using conservation-based electro-mechanical components in which we model true physical characteristics of the system. Finally, we realize the servo compensator portion of the design in the z-domain, using VHDL-AMS, so that the algorithms for a firmware implementation can be explored.
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