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Envelope-following methods face special challenges when applied to oscillators because of their fundamental property of dynamically changing frequencies. In this paper, we present a novel and robust approach for oscillator envelope following. Our method combines, unifies, and extends ideas from two prior oscillator envelope-following approaches, namely, Petzold's method and the warped multitime partial...
We present a generalization of standard AC analysis to oscillators by exploiting least-squares solution techniques. This provides an attractive alternative to the current practice of employing transient simulation for small signal analysis of oscillators. Unlike phase condition based oscillator analysis techniques, which suffer from numerical artifacts, the least-squares approach of this paper results...
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