Title :
Matrix methods for switched-capacitor filter design
Author :
Ping, Li ; Henderson, Robert K. ; Sewell, J.I.
Author_Institution :
Dept. of Electron. & Electr. Eng., Glasgow Univ., UK
Abstract :
A matrix-form description of switched-capacitor (SC) filter networks is introduced. It offers a unified approach to the design of many different categories of filter specification and structure. By the application of matrix transformations, most notably LU factorization, filter structures simulating passive networks are derived. One such design eliminates the unswitched capacitive loops of leapfrog filters. Matrix design methods have been implemented in a software package for SC, active-RC, and digital filters.<>
Keywords :
active filters; circuit CAD; digital filters; matrix algebra; switched capacitor filters; LU factorization; active RC filters; digital filters; leapfrog filters; matrix transformations; matrix-form description; software package; switched-capacitor filter design; unswitched capacitive loops; Active filters; Capacitors; Circuit simulation; Equations; Operational amplifiers; Passive filters; Passive networks; Prototypes; RLC circuits; Zero voltage switching;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo, Finland
DOI :
10.1109/ISCAS.1988.15098
