Analog Filter Design - Learn Fourier, Laplace, Butterworth Filters, and LC Circuits through Theory, Labs, and Projects
Dive deep into the world of analog signals and filter design with our Analog Circuit II: Signals, Systems, and Filters Learning Kit. Designed for engineering students, educators, and electronics enthusiasts, this hands-on kit covers the math, signals, circuits, and practical applications of filters—an essential topic in electronics.
This kit includes a color-printed book, high-quality electronic components, PCB modules, and hands-on projects to bridge theory and real-world circuit design. With over 260 detailed illustrations, structured learning modules, and practical experiments, this kit makes complex concepts easier to grasp while reinforcing learning through tangible projects.
Whether you're a beginner or an advanced learner, this kit provides a solid foundation for Fourier and Laplace Transforms, active and passive filters, Butterworth filters, LC circuits, and real-time ECG signal processing.
Please note: Currently this project is simultaneously launched at Kickstarter. We have specially launched it on our website as PRE-ORDER, hence the all the variants are now available at exclusive price. Check the fulfillment details at the end of the page.
- Comprehensive coverage of analog filters, signal processing, and circuit design
- Step-by-step explanations with intuitive diagrams for easy understanding
- Hands-on experiments with real hardware to reinforce concepts
- Industry-relevant skills aligned with university curricula
- Three hands-on projects, including ECG signal processing
Chapter 1: Introduction to Analog Signals and Filters
This chapter lays the foundation for understanding analog signals and filter circuits. It introduces the essential concepts that will be used throughout the book and in practical applications.
1.1 Basics of Analog Signals
- Difference between analog and digital signals
- Characteristics of analog signals: frequency, amplitude, phase
- Examples of real-world analog signals (audio, biomedical, and communication signals)
1.2 Basics of Analog Filters
- What filters do: separating, enhancing, or suppressing signals
- Types of analog filters: low-pass, high-pass, band-pass, and band-reject
- Common applications of filters in audio, communication, and biomedical systems
1.3 Useful Software and Tools
- Introduction to LT SPICE for circuit simulation
- MATLAB and Python for signal processing
- How to use an oscilloscope and function generator for experiments
1.4 Laboratory Skills
- Breadboarding and soldering techniques
- Measuring and analyzing signals with an oscilloscope
- Debugging circuits and common troubleshooting techniques
This chapter provides essential mathematical tools to understand and analyze signals and systems. The focus is on making complex concepts approachable through visualizations and practical examples.
2.1 Complex Numbers and Signal Representations
- Understanding imaginary numbers and complex exponentials
- Euler’s formula and its significance in engineering
- Representing signals using phasors
2.2 Signal Transformations
- Time-domain vs. frequency-domain analysis
- Fourier Transform basics: breaking down signals into frequency components
- Laplace Transform: analyzing systems in the s-domain
2.3 System Modeling in Frequency Domain
- Understanding transfer functions
- Poles and zeros of a system and their impact on system behavior
- Bode plots for frequency response analysis
2.4 System Response in Time-Domain
- Impulse response and step response of filters
- Convolution and its role in signal processing
- Stability criteria for analog circuits
This chapter explores the fundamental building blocks of analog filters—passive components like resistors, capacitors, and inductors. You will learn how to analyze, simulate, and build these filters.
3.1 Low-Pass, High-Pass, Band-Pass, and Band-Reject Filters
- Definition and working principles of each filter type
- Practical use cases for each filter (audio processing, radio tuning, noise reduction)
3.2 Frequency Response and Transfer Functions
- Derivation of transfer functions for first-order and second-order filters
- Understanding cutoff frequency, bandwidth, and roll-off rate
3.3 Circuit Implementations and LT SPICE Simulations
- Designing and analyzing passive filters using LT SPICE
- Comparing real-world results with theoretical calculations
- Practical circuit construction on breadboards
This chapter introduces active filters, which use operational amplifiers (op-amps) to achieve better performance and flexibility in signal processing.
4.1 Review of Operational Amplifiers
- Understanding op-amp basics: inverting and non-inverting configurations
- Op-amp parameters: gain, bandwidth, slew rate, and input/output impedance
4.2 Active LPF, HPF, BPF, BRF, and All-Pass Filters
- Advantages of active filters over passive filters
- Second-order and higher-order active filter designs
- Real-world applications of active filters in instrumentation and communication
4.3 Filters with Generalized Impedance Converters (GIC)
- Introduction to GIC-based filter design
- How GICs enable precise high-order filter implementation
- Practical circuits using GICs for superior performance
This chapter explores more sophisticated filtering techniques for specialized applications.
5.1 Higher-Order Filters
- Cascading multiple filter stages to achieve sharper roll-offs
- Understanding the relationship between filter order and frequency response
5.2 Butterworth Filters
- Designing maximally flat response filters
- Comparison with Chebyshev and Bessel filters
- MATLAB/Python-based simulations for Butterworth filter design
5.3 LC Filters and Advanced CAD-Based Design
- Understanding LC filters: why inductors are used and how they affect performance
- Applications of LC filters in RF and power electronics
- Using circuit design software for professional filter design
This chapter brings theory into practice with real-world applications of signal processing and filters.
6.1 Project 1: Waveform Transformation (Using Low-Pass Filters)
- Converting square waves into sinusoidal signals using LPF
- Visualizing frequency content using Fourier analysis
- Practical demonstration with an oscilloscope
6.2 Project 2: Audio Signal Processing (Bass & Treble Enhancer)
- Designing an equalizer circuit to modify audio signals
- Implementing and testing bass boost and treble enhancement
- Understanding how human hearing perceives different frequency ranges
6.3 Project 3: ECG Signal Processing (Acquisition & Filtering)
- Building a simple electrocardiogram (ECG) circuit
- Using filters to remove noise and extract heart signals
- Understanding biomedical signal processing basics
We've thoughtfully crafted illustrative figures featuring clear layouts
and color codes. These visuals bring complex ideas to life, facilitating understanding without overwhelming readers. I hope you enjoy learning analog circuits and
electronics with this book!
What’s Inside?
Tutorial Book - Comprehensive theoretical coverage of analog filters, signal processing, and circuit design
Step-by-step explanations with intuitive diagrams for easy understanding
Mathematical foundations explained with real-world applications
Industry-relevant skills aligned with university curricula
End-of-chapter exercises for self-assessment
science and technology. The book contains a list of experiments and exercises,
carefully designed to complement the supplemented parts, modules, and tools.
These resources enable you to dive into immediate, hands-on learning experiences,
reinforcing the concepts you've learned and solidifying your understanding.
What’s Inside?
The Kit variant includes
1) Analog Filter Design tutorial book
2) PLUS Analog Filter hardware components + accessories for DIY Projects
Hands-on experiments with real hardware to reinforce concepts
Hardware components for building and testing filters
Step-by-step guided experiments with circuit diagrams
What’s Inside?
1) Everything from the Analog Filter Design KIT variant → Includes full theoretical explanations of analog signals, filters, circuit design, and system modeling (Book + Hardware Kit) PLUS
2) LOTG - Lab-On-The-Go: Comprehensive Portable & USB Rechargeable Lab Equipment Tool kit.
If you're a beginner or lack access to essential testing and measurement instruments
like a power supply, function generator, multimeter, or oscilloscope, and seek a comprehensive solution without breaking the bank, our flagship product
"Lab-On-The-Go" is the perfect choice for you. Here are some examples that
we used LOTG to setup and learn some experiments (amplifier circuits and transistor circuits) in this book.
Analog Kits: The Analog Circuit + Analog Filter Design Kit Combo
What’s Inside the Analog Kits Variant?
1) Analog Filter Design Kit – Build & Analyze Real-World Filters PLUS
2) Analog Circuit Kit – Master Fundamental Analog Electronics
What You’ll Learn in the Analog Circuit Kit
- Understand basic circuit elements like resistors, capacitors, inductors
- Work with diodes & transistors in real circuits
- Build and test op-amp amplifiers, oscillators, and rectifiers
- Learn how analog circuits process real-world signals
Basic Electric Circuit + Analog Circuit + Analog Filter Design + LOTG
What’s Inside the Combo Variant?
This comprehensive bundle includes:
1) Basic Electric Circuit
Covers fundamental circuit laws, components, and analysis techniques
Learn about Ohm’s Law, Kirchhoff’s Laws, voltage dividers, and power calculations
Hands-on breadboard experiments for practical learning. You Will Learn:
- How resistors, capacitors, and inductors work in circuits
- Basic circuit analysis techniques (series, parallel, mesh, and nodal analysis)
- How to use a multimeter to measure voltage, current, and resistance
- Real-world applications of power supplies, diodes, and transistors PLUS
2) Analog Circuit Kit – Learn essential circuit building blocks
Learn about amplifiers, oscillators, op-amps, and signal processing
Understand signal behavior and circuit response
Experiment with real components & simulation tools (LT SPICE)🔹 You Will Learn:
- How to design basic amplifier circuits using transistors and op-amp
- Explore waveform generation & signal processing circuits
- Build oscillators, rectifiers, and analog signal conditioning circuits
- Hands-on testing of circuits with breadboards & oscilloscopes PLUS
Covers low-pass, high-pass, band-pass, and band-reject filters
Learn frequency response, transfer functions, and circuit design techniques
Build and simulate filters for real-world applications. You Will Learn:
- The importance of filtering noise & shaping signals in electronics
- Design passive & active filters using resistors, capacitors, and op-amps PLUS
4) LOTG (Learn-On-The-Go) – Portable Lab Equipment Tool Kit to get Practical, hands-on approach with real projects
Previous Version – Analog Circuit I
Before this, we launched Analog Circuit I, covering fundamental circuit analysis, amplifiers, and oscillators. Based on community feedback, we developed Version II to focus specifically on filters, signals, and systems, making it a perfect companion to deepen your understanding.
This kit is ideal for students, engineers, and hobbyists who want to master filter design and real-world signal processing. Order now and take your analog circuit skills to the next level! This learning kit is designed to provide both theoretical knowledge and hands-on experience. By the end of this course, you will:
- Understand fundamental concepts of analog signals, filtering techniques, and system modeling
- Apply mathematical tools like Fourier and Laplace transforms to analyze circuits
Design and simulate real-world passive and active filters - Build practical circuits using a hands-on approach with real components
- Work on tangible projects that reinforce your learning with practical applications
- Hands-On Learning: Unlike passive video lectures, this kit lets you build real circuits and apply theoretical concepts.
- Real-World Applications: Covers essential topics used in audio engineering, biomedical signal processing, and communications.
- Comprehensive Kit: Includes a detailed book, components, PCB modules, breadboard, and accessories for full experimentation.
- Illustrative Learning: Features 260+ diagrams to simplify complex topics.
University-Level Content: Aligns with curricula from top universities in the USA and Canada.- Massachusetts Institute of Technology (MIT) – Signals and Systems
- Stanford University – Analog Circuit Design
- University of Toronto – Analog Signal Processing
- University of British Columbia – Filters & System Analysis
- Carnegie Mellon University – Signal Processing Fundamentals
This learning kit is designed to provide both theoretical knowledge and hands-on experience. By the end of this course, you will:
- Understand fundamental concepts of analog signals, filtering techniques, and system modeling
- Apply mathematical tools like Fourier and Laplace transforms to analyze circuits
- Design and simulate real-world passive and active filters
- Build practical circuits using a hands-on approach with real components
- Work on tangible projects that reinforce your learning with practical applications
This is a perfect learning experience for electronics enthusiasts, engineering students, and professionals looking to deepen their understanding of signal processing and filter design.
Pre-Order – Secure Early Access & Exclusive Benefits
- Be the First to Get It – Be part of our first customers
- Exclusive Discounts – Pre-order customers get special pricing
- Support Development – If it’s a new product, pre-ordering helps fund production and improvements
This product is part of Kickstarter campaign and hence we have the launch special price for all our customers. After the campaign ends we would sell the product at regular price which would be 35% higher approximately! GET almost 35% OFF now!
This project is simultaneously launched at Kickstarter. We have specially launched it on our website as PRE-ORDER, hence the all the variants are now available at exclusive price. The fulfillment starts once the Kickstarter campaign ends, we will be ready to process shipment of the orders.
The tentative dates would be Early May 2025.
For customers pre-ordering the Analog Filter Design Kit along with currently available products from our store, the entire order will be shipped together when the Analog Filter Design Kit is ready for dispatch. This approach helps us manage shipping costs effectively. If you require the available products urgently, we recommend placing a separate order for those items. Thank you for your understanding.
FAQs
Q1: Do I need prior knowledge of analog circuits to use this kit?A: While basic electronics knowledge is helpful, our book provides step-by-step explanations, making it beginner-friendly.
A: You get resistors, capacitors, inductors, op-amps, PCB modules, a breadboard, and ECG electrodes to build real-world projects.
A: We use LT SPICE, MATLAB, and Python, with setup guides included in the book.
A: Absolutely! This kit aligns with electrical and electronics engineering courses at top universities.
