Pactitis Active Filters

Theory and Design
1. Auflage 2011
ISBN: 978-1-4200-5477-4
Verlag: Taylor & Francis
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 288 Seiten

Using an accessible yet rigorous approach, Active Filters: Theory and Design highlights the essential role of filters, especially analog active filters, in applications for seismology, brainwave research, speech and hearing studies, and other medical electronics. The book demonstrates how to design filters capable of meeting a given set of specifications.

Recognizing that circuit simulation by computer has become an indispensable verification tool both in analysis and in design, the author emphasizes the use of MicroCap for rapid test of the filter. He uses three basic filter types throughout the book: Butterworth, Chenyshev, and Bessel. These three types of filters are implemented with the Sallen-Key, infinite gain multiple feedback, state-variable, and biquad circuits that yield low-pass, high-pass, band-pass, and band-reject circuits. The book illustrates many examples of low-pass, high-pass, band-pass, and notch active filters in complete detail, including frequency normalizing and denormalizing techniques.

Design equations in each chapter provide students with a thorough grounding in how to implement designs. This detailed theoretical treatment gives you the tools to teach your students how to master filter design and analysis.

Zielgruppe

Senior undergraduates and graduate students; practicing engineers; technicians; and filter designers.

Autoren/Hrsg.

Pactitis, S.A.

Fachgebiete

• Technische Wissenschaften Elektronik | Nachrichtentechnik Elektronik Bauelemente, Schaltkreise
• Technische Wissenschaften Energietechnik | Elektrotechnik Elektrotechnik

Inhaltsverzeichnis

INTRODUCTION
Filters and Signals
Basic Filter Types
The Mathematics of Elementary Filters
Why Active Filters?
Practical Applications
The Voltage-Controlled Voltage Source (VCVS)

SALLEN-KEY FILTERS
Introduction
Frequency Response Normalization
First-Order Low-Pass Filter
First-Order High-Pass Filter
Second-Order Filters
Low-Pass Filters
High-Pass Filters
Higher-Order Filters
Wide-Band Filters
Wide-Band Band-Reject Filters
Comments on VCVS Filters
Problems

MULTIFEEDBACK FILTERS'
Low-Pass Filters
High-Pass Filters
Higher-Order Filters
Band-Pass Filters
Band-Reject Filters
Comments on MFB Filters
Problems

FILTERS WITH THREE OP-AMPS
State Variable Filter
Biquad Filters
Problems

SENSITIVITY
Introduction
Some General Properties
Magnitude and Phase Sensitivities
Root Sensitivity
Problems

FILTERS WITH GIC
Introduction
Generalized Impedance Converters
Low-Pass Filter Design
High-Pass Filter Design
Narrow-Band Band-Pass Filter Design
Narrow-Band Band-Reject Filter Design
Problems

OTA FILTERS
Introduction
Single OTA LP Filters with Three Passive Components
Second-Order Low-Pass Filter
Second-Order LP Filter with Four Passive Components
Second-Order Band-Pass Filter
OTA-C Filter
Some Non-Ideal Feature of the OTA
Problems

SWITCHED CAPACITOR FILTERS
Introduction
The Switched Capacitor Resistors
The Switched Capacitor Integrator
Practical Limitations of SC Filters
Problems

Appendix A: Node Voltage Network Analysis
Appendix B: Filter Design Nomograph
Appendix C: First- and Second-Order Factors of Denominator Polynomial
Appendix D: Formulas of Normalized Filters
Appendix E: Element Values for Low-Pass LC Filters
Appendix F: Coefficients of Denominator Polynomial
Bibliography