EMI filter design. (2012)

• Record Type: Book
• Further Information: Note: Richard Lee Ozenbaugh, Timothy M. Pullen.
• Other Names: Ozenbaugh, Richard Lee; Pullen, Timothy M
• Contents: EMI Filters; Introduction; Technical Challenges; Types of EMI Filters; No Such Thing as Black Magic; It Is All in the Mathematics; ; Why Call EMI Filters Black Magic?; What Is EMI?; Regular Filters versus EMI Filters; Specifications: Real or Imagined; The Inductive Input for the 220-A Test Method; The 400-Hz Filter Compared with the 50- or 60-Hz Filter; ; Common Mode and Differential Mode: Definition, Cause, and Elimination; Definition of Common and Differential Modes; The Origin of Common-Mode Noise; Generation of Common-Mode Noise—Load; Elimination of Common-Mode Noise—Line and Load; Generation of Differential-Mode Noise?; Three-Phase Virtual Ground; ; EMI Filter Source Impedance of Various Power Lines; Skin Effect; Applying Transmission Line Concepts and Impedances; Applying Transmission Line Impedances to Differential and Common Mode; Differences among Power Line Measurements; Simple Methods of Measuring AC and DC Power Lines; Other Source Impedances; ; The Various AC Load Impedances; The Resistive Load; Off-Line Regulator with Capacitive Load; Off-Line Regulator with an Inductor ahead of the Storage Capacitor; The Power Factor Correction Circuit; Transformer Load; The UPS Load; ; DC Circuit—Load and Source; Various Source Impedance; Switcher Load; DC Circuit for EMI Solutions or Recommendations; Some Ideas for the Initial Power Supply; Other Parts of the System; Lossy Components; Radiated Emissions; ; Typical EMI Filters—Pros and Cons; The π Filter; The T Filter; The L Filter; The Typical Commercial Filter; The Cauer Filter; The RC Shunt; The Conventional Filters; ; Filter Components—the Capacitor; Capacitor Specifications; Capacitor Construction and Self-Resonant Frequency; Veeing the Capacitor; Margins, Creepage, and Corona—Split Foil for High Voltage; Capacitor Design—Wrap-and-Fill Type; ; Filter Components—the Inductor; Inductor Styles and Specifications; Core Types; High-Current Inductors; Inductor Design; Converting from Unbalanced to Balanced; ; Common-Mode Components; The Capacitor to Ground; Virtual Ground; Z for Zorro; Common-Mode Inductor; Common-Mode Calculation; Differential Inductance from a Common-Mode Inductor; Common-Mode Currents—Do They All Balance?; ; The Transformer’s Addition to the EMI Filter; Transformer Advantages; Isolation; Leakage Current; Common Mode; Voltage Translation—Step Up or Down; The Transformer as a Key Component of the EMI Package; Skin Effect; Review; ; Electromagnetic Pulse and Voltage Transients; Unidirectional versus Bidirectional; The Three Theories; Initial High-Voltage Inductor; The Arrester Location; How to Calculate the Arrester; The Gas Tube; ; What Will Compromise the Filter?; Specifications—Testing; Power Supplies—Either as Source or Load; 9- and 15-Phase Autotransformers; Neutral Wire Not Part of the Common-Mode Inductor; Two or More Filters in Cascade—the Unknown Capacitor; Poor Filter Grounding; The "Floating" Filter; The Unknown Capacitor in the Following Equipment; Filter Input and Output Too Close Together; Gaskets; ; Waves as Noise Sources; The Spike; The Pulse; The Power Spectrum—dB μA/MHz; MIL-STD-461 Curve; ; Initial Filter Design Requirements; Differential-Mode Design Goals; The Differential-Mode Filter Input Impedance; The Differential-Mode Filter Output Impedance; The Input and Output Impedance for a DC Filter; Common-Mode Design Goals; Estimation of the Common-Mode Source Impedance; Methods of Reducing the Inductor Value due to High Current; ; Matrices, Transfer Functions, and Insertion Loss; Synthesis, Modeling, and Analysis; Review of the A Matrix; Transfer Functions; Review of Matrix Topologies; The π Filter; The L Matrix; The T Filter; The Cauer or Elliptic Matrix; The RC Shunt; Filter Applications and Thoughts; Single-Phase AC Filter; Three-Phase Filters; Low-Current Wye; High-Current Wye; The Single Insert; The Low-Current Delta; High-Current Delta; Telephone and Data Filters; Pulse Requirements—How to Pass the Pulse; The DC-DC Filter; Low-Current Filters; ; Matrix Applications: A Continuation of Chapter 16; The Impedance of the Source and Load; dB Loss Calculations of a Single π Filter; Example of the Calculations for a Single π Filter; Double π Filter: Equations and dB Loss; Triple π Filter: Equations and dB Loss; ; Network Analysis of Passive LC Structures; Lossless Networks; Network Impedances Using Z Parameters; Network Admittances Using Y Parameters; Transfer Function Analysis—H(jω); Transfer Function Analysis—H(s); Coefficient-Matching Technique; EMI Filter Stability; ; Filter Design Techniques and Design Examples; Filter Design Requirements; Design Techniques; Filter Design Summary; EMI Filter Design Example; Four-Pole LC Structure; ; Packaging Information; The Layout; Estimated Volume; Volume-to-Weight Ratio; Potting Compounds; ; Appendix A: K Values of Different Topologies; Appendix B: LC Passive Filter Design; Appendix C: Conversion Factors; ; Index
• Edition: 3rd ed
• Publisher Details: Boca Raton, FL : Taylor & Francis
• Publication Date: 2012
• Extent: 1 online resource (1 volume (various pagings)), illustrations
• Subjects: 621.3815/324; Electric filters -- Design and construction; Electromagnetic interference; TECHNOLOGY & ENGINEERING -- Electronics -- Circuits -- General; TECHNOLOGY & ENGINEERING -- Electronics -- Circuits -- Integrated; Electric filters -- Design and construction; Electromagnetic interference; Electronic books
• Languages: English
• ISBNs: 1439863229; 9781439863220
• Related ISBNs: 9781439844755; 9781439863220; 1439844755
• Notes: Note: Includes bibliographical references.; Note: Print version record.
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.