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Abstract
In this paper a generalized definition of passivity is introduced. Sufficient conditions of passivity for a certain class of time-varying non-linearities associating with various RL, RC and RLC multipliers are presented. It is pointed out that these passivity results can be used in conjunction with a Popov-type frequency domain condition to obtain many very general stability criteria of non-linear time-varying feedback systems in a systematic and unified manner by means of the passivity theorem.
Notes
† Communicated by the Author.