변동율이 작은 다중궤환형 능동 여파기에 관한 연구

Abstract

학위논문(석사) - 한국과학기술원 : 전기 및 전자공학과, 1980.2, [ iii, 60, [18] p. ]A new topology for the design of multiple-loop feedback active filter is proposed. Using the topology, the theory of design of symmetric bandpass filter of any type and any order whose lowpass prototype function is known is developed. And its performance is compared with respect to the sensitivity measure with the Follow-the-Leader Feedback (FLF), Double-Skipped-Feedback(DSF), and cascade case. The result is that proposed topology is less sensitive than the others. This topology needs one more active device than FLF, but it can be applied to any type and any order filter like FLF. Experimentally an 8th-order Butterworth filter is built and tested. And its frequency characteristic is reported.한국과학기술원 : 전기 및 전자공학과