The required Q value, gain, and accuracy required in center frequency determine the practical challenges that we may encounter. However, the higher Q value creates circuit instability, oscillations and makes the circuit very sensitive to the circuit component tolerances. Generally, the narrow band-pass filtering action is achieved by increasing the Q value of the normal band-pass filter. In the case of the narrow band-pass filter, the circuit stability poses difficult requirements. There are always some design trade-offs that need to be made. In Band-pass filter, Quality Factor (Q) and gain of the filter are generally interrelated and thus do not give the independent control. Practical Challengesīand-pass filter design has nevertheless been a challenge given many interrelated dependencies in the circuit parameters. CHAPTER 1 DESIGN REQUIREMENTS FOR EXTREMELY NARROW BAND-PASS FILTERS 1.1.
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1, June 1998.Īttri, RK 2018, Narrow Band-Pass Filters for Low-Frequency Applications: Evaluation of Eight Electronics Filter Design Topologies, R.Attri Instrumentation Design Series (Electronics), ISBN 978-981-14-0133-6 (paperback), ISBN 978-981-11-9872-4 (e-book),Speed To Proficiency Research: S2Pro©, Singapore. 7, Sept 2005.Īttri, RK 1998, ‘Various Noise Sources & Noise Reduction Techniques in Instrumentation,’ R.Attri Instrumentation Design Series (Electronics), Paper No. 4, Sept 2005.Īttri, RK 2005, ‘Practical Design Evaluation of Extremely Narrow Band-Pass Filter Topologies,’ R.Attri Instrumentation Design Series (Electronics), Paper No. 5, Sept 2005.Īttri, RK 2005, ‘Design of stable Narrow Band-Pass Filter using Multi-stage Biquad Topology,’ R.Attri Instrumentation Design Series (Electronics), Paper No. 10.13140/RG.5920.Īttri, RK 2005, ‘Design Analysis and Evaluation of 1 and 2 op‐amp Topology for Design of Stable Narrow Band‐Pass Filter,’ R.Attri Instrumentation Design Series (Electronics), Paper No. The chapters in this series previously appeared as working papers:Īttri, RK 2005, ‘Evaluation of Single op-amp Topologies For Extremely Narrow Band-Pass Filter Design,’ R.Attri Instrumentation Design Series (Electronics), Paper No. The author does not claim contemporariness of the concepts, though the principles discussed in this book are universally applicable for analog electronics design. As such it should be read remembering the time frame.
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This book was originally conceptualized and authored in 2005-2006. The book provides guidelines for selecting the right topology for the low-frequency narrow band-pass filter. The filter topologies are evaluated using a real-world practical example of designing an extremely narrow band-pass filter. This book objectively compares the relative performance of eight popular narrow band-pass filter topologies. The selection of right topology of the filter for the best performance is the key to successful design. It becomes increasingly difficult for low-frequency applications where the shift in few Hz in mid-frequency would cause desired frequencies to fall outside the filter’s bandwidth and go undetected. The critical applications require a design that ensures mid-frequency immune to the circuit component tolerances. The challenge involves keeping quality factor, gain and mid-frequency of the filter independent of each other. Narrow Band-pass filtering techniques have been a challenging task since the inception of audio and telecommunication applications. He also runs a non-profit consulting forum focused on researching strategies to accelerate speed to proficiency. He has published his methods in scholarly journals, blogs, books, and conferences.
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Despite physical disability since childhood, he leveraged it to learn, research and test a range of “how to methods” to accelerate the rate of personal learning and professional performance at the workplace. A strong proponent of learning as the core of human success, he provides advisory on accelerated learning techniques which earned him over 60 educational credentials including doctorate degrees, three masters’ degrees and tens of international certifications.
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His international professional career spanned over 25 years across a range of disciplines such as scientific research, systems engineering, management consulting, training operations, professional teaching, and learning design. He holds a doctorate in business from Southern Cross University, Australia.
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He specializes in providing the competitive and strategic value to the organizations by accelerating time-to-proficiency of employees through well-researched models. Raman K Attri is a corporate business researcher, learning strategist, and management consultant with a strong zeal to enable people to unravel human learning and performance.