Huang-Jen Chiu

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Termination of a Cable Shield � The cable shield may become a monopole antenna, if the ground potential is varying � Peripheral cables such as printer cables for PC tend to have lengths of order 1.5m, which is a quarter- wavelength at 50MHz to a Noisy Point � Resonances in the radiated emissions of a product due to common-mode currents on these types of peripheral cables are frequently observed in the frequency range of 50-100MHz
dB Shielding Effectiveness SE = R + A + dB dB M dB � R represents the reflection loss � A represents the absorption loss � M represents the additional effects of multiple reflections / transmissions
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Huang-Jen Chiu Dept. of Electronic
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� Power Electronic Systems Outlin
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Power Electronic Systems
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Switch-Mode Switch Mode Power Suppl
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Application in Adjustable Speed Dri
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Scope and Applications
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Power Processor as a Combination of
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AC Motor Drive • Converter 1 rect
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Interdisciplinary Nature of Power E
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Diodes • On and off states contro
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Thyristors • Semi-controlled devi
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Generic Switch Symbol • Idealized
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Bipolar Junction Transistors (BJT)
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MOSFETs • Easy to control by the
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GTO Turn-Off Turn Off • Need a tu
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MOS-Controlled MOS Controlled Thyri
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Summary of Device Capabilities
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Chapter 3 Review of Basic Electrica
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Three-Phase Three Phase Circuit
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Fourier Analysis ∞ 1 f(t) = F0 +
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Phasor Representation
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Inductor Voltage and Current in Ste
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Ampere’s Ampere s Law ∫ H dl =
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B-H H Relationship; Saturation •
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Concept of Magnetic Reluctance •
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Analogy between Equations in Electr
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Inductance L • Inductance relates
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Transformer Equivalent Circuit
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Chapter 4 Computer Simulation
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Large-Signal Large Signal System Si
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Closed-Loop Closed Loop Operation:
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Modeling of a Simple Converter ⎡
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PSpice-based PSpice based Simulatio
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Chapter 5 Diode Rectifiers
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A Simple Circuit • Resistive load
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A Simple Circuit (Load has a dc bac
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Diode-Rectifier Diode Rectifier Bri
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Current Commutation • Assuming in
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Current Commutation in Full-Bridge
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Rectifier with a dc-side dc side vo
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Diode Rectifier Bridge • Equivale
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Input Line-Current Line Current Dis
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Line-Voltage Line Voltage Distortio
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A Three-Phase, Three Phase, Four-Wi
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Three-Phase, Three Phase, Full-Brid
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Rectifier with a Large Filter Capac
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Chapter 6 Thyristor Converters •
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Primitive circuits with thyristors
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Full-Bridge Full Bridge Thyristor C
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Average DC Output Voltage is s1 s3
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1-Phase Phase Thyristor Converter
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DC Voltage versus Load Current •
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Thyristor Converters: Inverter Mode
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Thyristor Converters: Inverter Mode
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Chapter 7 DC-DC DC DC Switch-Mode S
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Stepping Down a DC Voltage • A si
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d o Step-Down Step Down DC-DC DC DC
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Step-Down Step Down DC-DC DC DC Con
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ΔQ Δ Vo = = C Output Voltage Ripp
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Limits of Cont./ Discont. Discont.
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V V o d Limits of Cont./ Discont. D
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Step-Down/Up Step Down/Up DC-DC DC
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Discontinuous Conduction Mode V D =
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Output Voltage Ripple • ESR is as
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Converter for DC-Motor DC Motor Dri
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Output Ripple in Converters for DC-
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Reversing the Power Flow in DC-DC D
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Switch-Mode Switch Mode DC-AC DC AC
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V m = a m = f Synthesis of a Sinuso
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Harmonics in the DC-AC DC AC Invert
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Square-Wave Square Wave Mode of Ope
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Single-Phase Single Phase Full-Brid
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Analysis assuming Fictitious Filter
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Uni-polar Uni polar Voltage Switchi
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Sinusoidal Synthesis by Voltage Shi
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Push-Pull Push Pull Inverter • On
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Three-Phase Three Phase PWM Wavefor
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Three-Phase Three Phase Inverter Ou
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DC-Side DC Side Current in a Three-
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Effect of Blanking Time ΔV o ⎧ 2
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Programmed Harmonic Elimination •
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Fixed-Frequency Fixed Frequency Ope
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Hard Switching Waveforms • The ou
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Switching Trajectories • Comparis
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Series Series-Resonant Circuit Reso
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Undamped Undamped Parallel Parallel
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Series-Loaded Series Loaded Resonan
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ZVS, ZCS SLR Converter Waveforms ω
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SLR Converter Characteristics • T
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ZCS Parallel-Loaded Parallel Loaded
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No ZVS PLR Converter Waveforms turn
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Hybrid-Resonant Hybrid Resonant DC-
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Parallel-Resonant Parallel Resonant
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Class-E Class E Converters
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ZCS Turn-on ZCS Resonant-Switch Res
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ZVS Resonant-Switch Resonant Switch
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ZVS-CV ZVS CV DC-DC DC DC Converter
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ZVS-CV ZVS CV Principle Applied to
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Output Regulation by Voltage Contro
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Resonant DC-Link DC Link Inverter
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High-Frequency High Frequency-Link
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High-Frequency High Frequency-Link
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Linear Power Supplies • Very poor
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Switching DC Power Supply: Multiple
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PWM to Regulate Output
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Flyback Converter • Switch on and
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Other Flyback Converter Topologies
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Forward Converter: in Practice •
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Push-Pull Push Pull Inverter • Le
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Full-Bridge Full Bridge Converter
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Ferrite Core Material • Several m
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Control to Regulate Voltage Output
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Linearization of the Power Stage Li
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Forward Converter: An Example Forwa
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⎥ ⎥ ⎥ ⎦ ⎤ ⎢ ⎢ ⎢ ⎣
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Flyback Converter: Transfer Functio
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Typical Gain and Phase Plots of the
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Type-2 Type 2 Error Amplifier • S
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Feedback-Loop Feedback Loop Stabili
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L C F F o o o esr = Compensator Des
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F 1 Fco = Fs 5 z F F co esr EA = Co
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Voltage versus Current Mode Control
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Peak Current Mode Control • Slope
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Current Limiting
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Implementing Electrical Isolation i
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ESR of the Output Capacitor • ESR
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Distortion in the Input Voltage •
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Typical Range of Input Power Qualit
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Uninterruptible Power Supplies (UPS
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UPS: Another Possible Rectifier Arr
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Battery Charging Waveforms as Funct
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UPS: Control • Typically the load
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Another Possible UPS Arrangement
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Chapter 16 Residential and Industri
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Rapid-Start Rapid Start Fluorescent
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Induction Cooking • Pan is heated
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Welding Application
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Chapter 17 Electric Utility Applica
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Control of HVDC Transmission System
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Effect of Reactive Power on Voltage
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Thyristor-Switched Thyristor Switch
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Characteristics of Solar Cells •
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Harnessing of Wing Energy • A swi
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Chapter 18 Utility Interface • Po
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Diode-Rectifier Diode Rectifier Bri
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Harmonic Guidelines: IEEE 519 • C
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Reducing the Input Current Distorti
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Power-Factor Power Factor-Correctio
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Switch-Mode Switch Mode Converter I
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Switch-Mode Switch Mode Converter I
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Switching Waveforms • Typical ris
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Conducted EMI Filter
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+ V d - D f L s S w I o R Ls D Ls T
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EMI Sources and Sensors
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Four Basic EMC Problems
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EMC Requirements �� Those requi
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National Regulations Summary
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FCC Emission for Class B
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Comparison of the FCC Class A and C
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Chamber for Measurement of Radiated
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Antennas
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Line Impedance Stabilization Networ
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Conducted Emissions Test Layout
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Envelope Detector Quasi-Peak Detect
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Advantages of EMC Design � Minimi
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Resistors
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Capacitors
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470 pF Ceramic Capacitor with 1/2 I
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0.15 μF Tantalum Capacitor with 1/
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1.2μH Inductor
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Common-Mode Common Mode Choke
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Ferrite Beads
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Driver Circuit of the DC Motor
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The Spectra of 1V, 10MHz, 50% Duty
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The Effect of Bandwidth on Spectrum
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Differential-Mode Current Emission
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Common Mistakes that Lead to Unnece
Page 357 and 358: Radiated Emission due to the Common
Page 359 and 360: 10V/m, 100MHz Incident Uniform Plan
Page 361 and 362: Line Impedance Stabilization Networ
Page 363 and 364: Methods of Reducing the Common-Mode
Page 365 and 366: Four Simple Filters V L , wo ω L I
Page 367 and 368: Conducted EMI Filter
Page 369 and 370: The Equivalent Circuit of the Filte
Page 371 and 372: The Dominant Component of Conducted
Page 373 and 374: Measured Conducted Emissions withou
Page 375 and 376: Measured Conducted Emissions with a
Page 377 and 378: Measured Conducted Emissions with a
Page 379 and 380: Construction of Transformers
Page 381 and 382: The Proper Filter Placement in the
Page 383 and 384: Three-Conductor Three Conductor Tra
Page 385 and 386: PCB Transmission Lines illustrating
Page 387 and 388: The Simple Inductive-Capacitive Ind
Page 389 and 390: Effect of Load Impedance
Page 391 and 392: Time-Domain Time Domain Crosstalk f
Page 393 and 394: The Capacitance Equivalent for the
Page 395 and 396: Illustration of Placing a Shield on
Page 397 and 398: Explanation of the Effect of Shield
Page 399 and 400: The Inductive-Capacitive Inductive
Page 401 and 402: A Model for the Unbalanced Twisted
Page 403 and 404: The Three Levels of Reducing Induct
Page 405 and 406: The Effect of Balanced and Unbalanc
Page 407: Degradation of Shielding Effectiven
Page 411 and 412: Absorption Loss t / δ AdB = 20 log
Page 413 and 414: Shielding Effectiveness � Reflect
Page 415 and 416: The Methods of Shielding against Lo
Page 417 and 418: The Phenomenon of Saturation of Fer
Page 419 and 420: Effects of Apertures Since it is no
Page 421 and 422: Effects of the ESD Events � The i
Page 423 and 424: Preventing the ESD Event � Electr
Page 425 and 426: Preventing the Secondary Arc Discha
Page 427 and 428: Use of Shielded Cables to Exclude E
Page 429 and 430: Reduction of Loop Area in Power Dis
Page 431 and 432: Software Immunity � Watchdog rout
Page 433 and 434: Common-impedance Common impedance C
Page 435 and 436: Segregation of Grounds
Page 437 and 438: The Generation and Blocking of CM C
Page 439 and 440: Interconnection and Number of PCBs
Page 441 and 442: PCB and Subsystem Placement Attenti
Page 443 and 444: Splitting Crystal/ Oscillator Frequ
Page 445 and 446: Component Placement
Page 447 and 448: Creation of a Quiet Ground where Co
Page 449 and 450: Use of Decoupling Capacitors
Page 451: Minimizing the Loop Area of the Pow
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Huang-Jen Chiu

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