Power Supply on Chip (PwrSoC) model identification using black-box modeling techniques

With recent developments in power conversion technologies and market trends that are driving those technologies toward further miniaturization and greater integration, the need for an empirically based modeling methodology for proprietary power converters such as Power Supply on Chip (PwrSoC) products has risen significantly. This need motivates the investigation of black-box models, which require little or no knowledge of the internal workings of a system, for those areas of industry adopting PwrSoC technology as a point-of-load solution. This paper reports a black-box modeling method and the construction and validation of a large-signal averaged model for a specific commercially available PwrSoC product. The benefits of the approach reported in this paper include the computational advantages of averaged models in simulation and the availability of a simple procedure to create models for concept analysis and design evaluation of PwrSoC products without vendor supplied models or “white-box” information needed to create a circuit description of the part.