Audio System Modeling and Simulation
This presentation extends the concepts developed in the companion presentation, “SPICE and Beyond with SystemVison: Audio Amplifier Example”. Here, in order to provide accurate dynamic loading effects for an audio amplifier, we first develop a model of a loudspeaker. This model includes an electro-mechanical voice-coil and a non-linear speaker cone with aerodynamic drag. This model is verified for both time- and frequency-response, and is shown to represent realistic loudspeaker behavior. Then we turn our attention to modeling an Audio IC, a Philips TDA7056A 3 Watt BTL (Bridge-Tied-Load) Mono Audio Output Amplifier. The modeling process demonstrates that even if SPICE models are not readily available from the manufacturer, a straightforward building-block modeling approach can yield practical, “data-sheet accurate” models that allow integrated system design verification to proceed. We show how SystemVision’s new Datasheet Curve Modeler (DCM) feature can be used to extract data directly from a graphical image, and then automatically generate an executable model of that behavior.
A tour of the xtUML methodology demonstrating analysis, design, verification, and code generation in...…View Technology Overview
This segment of the xtUML "How To" Series covers three methods that can be used to create...…View Product Demo
Other Related Resources
White Paper: This paper shows how Model Driven Development can address common challenges in the system design, verification & testing of complex systems and systems of systems. Model Driven Development and virtual...…View White Paper
White Paper: This paper describes a model-driven development approach that leverages modeling efforts to validate functionality and transform high level models into forms that are useful at the next development step....…View White Paper
White Paper: This paper discusses model-driven development (MDD) as the enabler of virtual system integration. MDD dramatically reduces the risks of complex mechatronic system development, increases productivity within...…View White Paper