Search results for "small OR signal OR audio OR design OR 4th OR edition"

Some Highlights from the contents Surround-sound decoder Compact amp Sampling rate converter Battery powered preamplifier Titan 2000 amplifier Crescendo Millennium amplifier Audio-DAC/ADC IR-S/PDFI receiver and transmitter High-End Power Amp Hi-fi Wireless Headset Paraphase Tone Control and more… Using Adobe Reader you are able to browse and search the articles on your computer, as well as print texts, circuit diagrams and PCB layouts.

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Jan Didden created Linear Audio in 2010 and published 14 Volumes between 2010 and 2017. Each 200-page Volume contains on average 10 articles by expert authors in the field of audio, acoustics, and instrumentation. Whether you are interested in tube amplifiers, solid-state equipment, loudspeaker design, capacitor and resistor distortion or distortion measurement, you are certain to find helpful advice and interesting discussions. From beginner to advanced level, for the audio professional or the serious hobbyist, this ExpertCollection will advance your understanding and offer new perspectives on common issues. Bonus material included with this collection is a 5-part YouTube series on negative feedback as applied to audio by renowned author Jan Didden, and nine additional landmark audio articles and presentations. If you are seriously interested in audio, acoustics, and instrumentation, you can’t afford to miss this! The published material is indexed and fully searchable and will provide an almost limitless resource for many years to come. You can read about Linear Audio’s authors, and the Table of Contents of each Volume, at linearaudio.net.

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The QA403 is QuantAsylum's fourth-generation audio analyzer. The QA403 extends the functionality of the QA402 with improved noise and distortion performance, in addition to a flatter response at band edges. The compact size of the QA403 means you can take it just about anywhere. Features 24-bit ADC/DAC Up to 192 kS/s Fully isolated from PC Differential Input/Output USB powered Built-in Attenuator Fast Bootup and Driverless The QA403 is a driverless USB device, meaning it’s ready as soon as you plug it in. The software is free and it is quick and easy to move the hardware from one machine to the next. So, if you need to head to the factory to troubleshoot a problem or take the QA403 home for a work-from-home day, you can do it without hassle. No-Cal Design The QA403 comes with a factory calibration in its flash memory, ensuring consistent unit-to-unit performance. On your manufacturing line you can install another QA403 and be confident what you read on one unit will be very similar to the next unit. It is not expected that re-calibration will be required at regular intervals. Measurements Making basic measurements is quick and easy. In a few clicks you will understand the frequency response, THD(+N), gain, SNR and more of your device-under test. Dynamic Range The QA403 offers 8 gain ranges on the input (0 to +42 dBV in 6 steps), and 4 gain ranges on the output (-12 to +18 dBV in 10 dB steps). This ensures consistent performance over very wide ranges of input and output levels. The maximum AC input to the QA403 is +32 dBV = 40 Vrms. The maximum DC is ±40 V, and the maximum ACPEAK + DC = ±56 V. Easy Programmability The QA403 supports a REST interface, making it easy to automate measurements in just about any language you might anticipate. From Python to C++ to Visual Basic—if you know how to load a web page in your favorite language, you can control the QA403 remotely. Measurements are fast and responsive, usually with dozens of commands being processed per second. Isolated and USB Powered The QA403 is isolated from the PC, meaning you are measuring your DUT and not chasing some phantom ground loop. The QA403 is USB powered, like nearly all our instruments. If you are setting up remotely, throw a powered hub in your bag and your entire test setup can be running with a minimum of cables. Goodbye Soundcard, Hello QA403 Tired of trying to make a soundcard work? The calibration nightmare? The lack of gain stages? The limited drive? Are you tired of dealing with the fixed input ranges? The worry that you might destroy it with too much DC or AC? Tired of the ground loops? That’s why QuantAsylum built the QA403. Specifications Dimensions 177 x 44 x 97 mm (W x H x D) Weight 435 g Case Material Powder-coating Aluminum (2 mm thick front panel, 1.6 mm thick top/bottom) Downloads Datasheet Manual GitHub

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The State of Hollow State Audio in the Second Decade of the 21st Century Vacuum-tube (or valve, depending upon which side of the pond you live on) technology spawned the Age of Electronics early in the 20th Century. Until the advent of solid-state electronics near mid-century, hollow-state devices were the only choice. But following the invention of the transistor (after their process fell to reasonable levels), within a couple of decades, the death of vacuum tubes was widely heralded. Yet here we are some five decades later, and hollow-state equipment is enjoying something of a comeback, especially in the music and high-end audio industries. Many issues surround hollow-state audio: Does it produce—as some claim—better sound? If so, is there science to back up these claims? How do hollow-state circuits work? How do you design hollow-state audio circuits? If hollow-state equipment fails, how do you go about troubleshooting and repairing it? Can we recreate some of the classic hollow-state audio devices for modern listening rooms and recording studios? How can we intelligently modify hollow-state amplifiers to our taste? These and other topics are covered in The State of Hollow State Audio.

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The intention of this book is to offer the reader understandings, ideas and solutions from the perspective of a workbench technician and electronics hobbyist. It is a descriptive text with many tables of useful data, servicing tips and supplementary notes of not so common knowledge. Today there is a re-emerging, nostalgic interest in vinyl records and associated music entertainment gear. With this interest, there is a paralleled market for the repair of this gear. This ‘hands-on’ servicing guide opens with fundamental considerations of the work space of repair and servicing. This includes a comprehensive discussion of essential test equipment and tools. Two chapters are devoted to obtaining servicing information about repair and obtaining spare parts. A key chapter is on general diagnosis and testing and includes the discussion of resistance, capacitance and inductance. These electrical properties are regularly in the mind of the repairer, so understanding of them is a key objective of this book. The next chapter is about time saving repair techniques and ensuring quality repair. The remaining chapters discuss entertainment equipment itself. Each of the chapters begins with an orderly discussion of the theory of operation and common and not so common problems specific to the equipment. All chapters conclude with a summary.

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Easy and Affordable Digital Signal ProcessingThe aim of this book is to teach the basic principles of Digital Signal Processing (DSP) and to introduce it from a practical point of view using the bare minimum of mathematics. Only the basic level of discrete-time systems theory is given, sufficient to implement DSP applications in real time. The practical implementations are described in real time using the highly popular ESP32 DevKitC microcontroller development board. With the low cost and extremely popular ESP32 microcontroller, you should be able to design elementary DSP projects with sampling frequencies within the audio range. All programming is done using the popular Arduino IDE in conjunction with the C language compiler.After laying a solid foundation of DSP theory and pertinent discussions on the main DSP software tools on the market, the book presents the following audio-based sound and DSP projects: Using an I²S-based digital microphone to capture audio sound Using an I²S-based class-D audio amplifier and speaker Playing MP3 music stored on an SD card through an I²S-based amplifier and speaker Playing MP3 music files stored in ESP32 flash memory through an I²S-based amplifier and speaker Mono and stereo Internet radio with I²S-based amplifiers and speakers Text-to-speech output with an I²S-based amplifier and speaker Using the volume control in I²S-based amplifier and speaker systems A speaking event counter with an I²S-based amplifier and speaker An adjustable sinewave generator with I²S-based amplifier and speaker Using the Pmod I²S2 24-bit fast ADC/DAC module Digital low-pass and band-pass real-time FIR filter design with external and internal A/D and D/A conversion Digital low-pass and band-pass real-time IIR filter design with external and internal A/D and D/A conversion Fast Fourier Transforms (FFT)

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Learn KiCad with Peter Dalmaris The Academy Pro Box "Design PCBs like a Pro" offers a complete, structured training programme in PCB design, combining online learning with practical application. Based on Peter Dalmaris’ KiCad course, the 15-week programme integrates video lessons, printed materials (2 books), and hands-on projects to ensure participants not only understand the theory but also develop the skills to apply it in practice. Unlike standard courses, the Academy Pro Box provides a guided learning path with weekly milestones and physical components to design, test, and produce working PCBs. This approach supports a deeper learning experience and better knowledge retention. The box is ideal for engineers, students, and professionals who want to develop practical PCB design expertise using open-source tools. With the added option to have their final project manufactured, participants complete the programme with real results – ready for use, testing, or further development. Learn by doing Build skills. Design real boards. Generate Gerbers. Place your first order. This isn’t just a course – it’s a complete project journey from idea to product. You’ll walk away with: Working knowledge of KiCad’s tools Confidence designing your own PCBs A fully manufacturable circuit board – made by you What's inside the Box (Course)? Both volumes of "KiCad Like a Pro" (valued at €105) Vol 1: Fundamentals and Projects Vol 2: Advanced Projects and Recipes Coupon code to join the bestselling KiCad 9 online course by Peter Dalmaris on Udemy, featuring 20+ hours of video training. You'll complete three full design projects: Breadboard Power Supply Tiny Solar Power Supply Datalogger with EEPROM and Clock Voucher from Eurocircuits for the production of PCBs (worth €85 excl. VAT) Learning Material (of this Box/Course) 15-Week Learning Program ▶  Click here to open Week 1: Setup, Fundamentals, and First Steps in PCB Design Week 2: Starting Your First PCB Project – Schematic Capture Week 3: PCB Layout – From Netlist to Board Design Week 4: Design Principles, Libraries, and Workflow Week 5: Your First Real-World PCB Project Week 6: Custom Libraries – Symbols, Footprints, and Workflow Week 7: Advanced Tools – Net Classes, Rules, Zones, Routing Week 8: Manufacturing Files, BOMs, and PCB Ordering Week 9: Advanced Finishing Techniques – Graphics, Refinement, and Production Quality Week 10: Tiny Solar Power Supply – From Schematic to Layout Week 11: Tiny Solar Power Supply – PCB Layout and Production Prep Week 12: ESP32 Clone Project – Schematic Design and Layout Prep Week 13: ESP32 Clone – PCB Layout and Manufacturing Prep Week 14: Final Improvements and Advanced Features Week 15: Productivity Tools, Simulation, and Automation KiCad Course with 18 Lessons on Udemy (by Peter Dalmaris) ▶  Click here to open Introduction Getting started with PCB design Getting started with KiCad Project: A hands-on tour of KiCad (Schematic Design) Project: A hands-on tour of KiCad (Layout) Design principles and PCB terms Design workflow and considerations Fundamental KiCad how-to: Symbols and Eeschema Fundamental KiCad how-to: Footprints and Pcbnew Project: Design a simple breadboard power supply PCB Project: Tiny Solar Power Supply Project: MCU datalogger with build-in 512K EEPROM and clock Recipes KiCad 9 new features and improvements Legacy (from previous versions of KiCad) KiCad 7 update (Legacy) (Legacy) Gettings started with KiCad Bonus lecture About the Author Dr. Peter Dalmaris, PhD is an educator, an electrical engineer and Maker. Creator of online video courses on DIY electronics and author of several technical books. As a Chief Tech Explorer since 2013 at Tech Explorations, the company he founded in Sydney, Australia, Peter's mission is to explore technology and help educate the world. What is Elektor Academy Pro? Elektor Academy Pro delivers specialized learning solutions designed for professionals, engineering teams, and technical experts in the electronics and embedded systems industry. It enables individuals and organizations to expand their practical knowledge, enhance their skills, and stay ahead of the curve through high-quality resources and hands-on training tools. From real-world projects and expert-led courses to in-depth technical insights, Elektor empowers engineers to tackle today’s electronics and embedded systems challenges. Our educational offerings include Academy Books, Pro Boxes, Webinars, Conferences, and industry-focused B2B magazines – all created with professional development in mind. Whether you're an engineer, R&D specialist, or technical decision-maker, Elektor Academy Pro bridges the gap between theory and practice, helping you master emerging technologies and drive innovation within your organization.

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From Theory to Practical Applications in Wireless Energy Transfer and Harvesting Wireless power transmission has gained significant global interest, particularly with the rise of electric vehicles and the Internet of Things (IoT). It’s a technology that allows the transfer of electricity without physical connections, offering solutions for everything from powering small devices over short distances to long-range energy transmission for more complex systems. Wireless Power Design provides a balanced mix of theoretical knowledge and practical insights, helping you explore the potential of wireless energy transfer and harvesting technologies. The book presents a series of hands-on projects that cover various aspects of wireless power systems, each accompanied by detailed explanations and parameter listings. The following five projects guide you through key areas of wireless power: Project 1: Wireless Powering of Advanced IoT Devices Project 2: Wireless Powered Devices on the Frontline – The Future and Challenges Project 3: Wireless Powering of Devices Using Inductive Technology Project 4: Wireless Power Transmission for IoT Devices Project 5: Charging Robot Crawler Inside the Pipeline These projects explore different aspects of wireless power, from inductive charging to wireless energy transmission, offering practical solutions for real-world applications. The book includes projects that use simulation tools like CST Microwave Studio and Keysight ADS for design and analysis, with a focus on practical design considerations and real-world implementation techniques.

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Design Guide for EMI Filter Design, SMPS & RF Circuits The book focuses on the selection of components, circuitry and layout recommendations for a wide array of magnetics components, always keeping in mind an EMC point of view. Contents Basic principles The most important laws and foundations of inductive components, equivalent circuit diagrams and simulation models give the reader a basic knowledge of electronics. Components This chapter introduces inductive components and their special properties and areas of use. All relevant components are explained, from EMC components and inductors to transformers, RF components, circuit protection components, shielding materials and capacitors. Applications In this chapter, the reader will find a comprehensive overview of the principle of filter circuits, circuitry and numerous industrial applications that are explained in detail based on original examples.

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For Speed, Area, Power, and Reliability This book teaches the fundamentals of FPGA operation, covering basic CMOS transistor theory to designing digital FPGA chips using LUTs, flip-flops, and embedded memories. Ideal for electrical engineers aiming to design large digital chips using FPGA technology. Discover: The inner workings of FPGA architecture and functionality. Hardware Description Languages (HDL) like Verilog and VHDL. The EDA tool flow for converting HDL source into a functional FPGA chip design. Insider tips for reliable, low power, and high performance FPGA designs. Example designs include: Computer-to-FPGA UART serial communication. An open-source Sump3 logic analyzer implementation. A fully functional graphics controller. What you need: Digilent BASYS3 or similar FPGA eval board with an AMD/Xilinx FPGA. Vivado EDA tool suite (available for download from AMD website free of charge). Project source files available from author’s GitHub site.

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Contents Basic principles A connector is an electromechanical system that provides a separable connection between two subsystems of an electronic device without an unacceptable effect on the performance of the device. It will be shown that there are a lot of complex parameters to handle properly to make this statement true. Design / Selection / Assembly This chapter provides an overview of design and material requirements for contact finishes, contact springs and connector housings as well as the major degradation mechanisms for these connector components. To complete this chapter, material selection criteria for each will also be reviewed. Additionally the Level of Interconnection (LOI) was integrated into this chapter as it addresses, where the connector is used within an electronic system and therefore influences the requirements and durability of the connector depending on its use. Applications This chapter is heading to the practical work and shows how customers use connectors in their applications to offer some possibilities and to ease your daily work. Additionally it contains some special topics like tin-whisker or impedance of ZIF cable to offer you extended background knowledge.

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Sound Secrets and Technology What would today’s rock and pop music be without electric lead and bass guitars? These instruments have been setting the tone for more than sixty years. Their underlying sound is determined largely by their electrical components. But, how do they actually work? Almost no one is able to explain this to the true musician with no technical background. This book answers many questions simply, in an easily-understandable manner. For the interested musician (and others), this book unveils, in a simple and well-grounded way, what have, until now, been regarded as manufacturer secrets. The examination explores deep within the guitar, including pickups and electrical environment, so that guitar electronics are no longer considered highly secret. With a few deft interventions, many instruments can be rendered more versatile and made to sound a lot better – in the most cost-effective manner. The author is an experienced electronics professional and active musician. He has thoroughly tested everything described here, in practice.

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