Two-Port Analysis of Switched-Capacitor Networks Using Four-Port Equivalent Circuits in the z-Domain

Carl F. Kurth, George S. Moschytz

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

In a previous publication by the authors it. was shown how switched-capacitor (SC) networks can be analyzed by using nodal charge equations. The result was a description of SC networks as time-variant sampled-data networks which led to a four-port equivalent circuit representation in the z-domain. In this paper, the four-port representation is expanded by considering six basic building blocks for the design of any general active or passive SC network. With the four-port equivalent circuit representation traditional two-port analysis tools, such as the transmission matrix and two-port transfer functions, can be used conveniently. An SC-filter design example is given and the measured response is shown to coincide with the response predicted by the theory.

Original languageEnglish
Pages (from-to)166-180
Number of pages15
JournalIEEE Transactions on Circuits and Systems
Volume26
Issue number3
DOIs
StatePublished - Mar 1979
Externally publishedYes

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