Spurious modulation on current-mode controlled DC/DC converters: an explanation for intermittent chaotic operation - Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
نویسندگان
چکیده
In this paper, we explain the mechanism that causes “intermittent” instability and chaos in a current-mode controlled switching converter. The circuit model used to study the phenomenon incorporates a coupling process through which a spurious signal is coupled to the current sensing and ramp compensation circuitry, resulting in a modulation of the compensation slope which causes the system to become unstable intermittently. We describe a way to find the parameter boundaries where intermittent chaotic operation emerges.
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