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Impact of a Decoupling Capacitor in a CMOS Inverter Circuit

This article discusses CMOS inverter switching and shows the impact of a decoupling capacitor on the power rail signal integrity and radiated emissions.

Common-Mode Current Creation and Suppression

This article discusses the creation of a common-mode current in a typical circuit and explains the effectiveness of a common-mode choke on differential-mode and common-mode currents.

EMC Units in Measurements and Testing

This article reviews the decibel units used in EMC laboratory measurements and testing. We begin by defining a decibel (dB) unit and proceed to the EMC specific units for voltage, current, power, and impedance measurements.

Smith Chart Basics: Network Analyzer Calibration

Network analyzer measurements require the calibration procedure which utilizes a calibration kit, consisting of a short, open, and a 50 Ω load attachment.

Basic Bode Plots in EMC Applications – Part II: Examples

This Part II of the tutorial illustrates the Bode plots’ use in several EMC applications. EMC applications will include the non-ideal models of resistors, inductors, and capacitors, as well as the spectral bounds on digital clock signals.
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Basic Bode Plots in EMC Applications

The importance of Bode plots in EMC cannot be overstated. This Part I of the tutorial discusses the basics of Bode plots construction.

RC Snubber Design for SMPS Protection

This part II of the RC Snubber topic discusses the systematic and efficient design process and design verification through simulations and laboratory measurements

RC Snubber Design for SMPS Protection

This is the first of two articles devoted to RC snubber design. In Part I, we discuss the fundamentals of inductive switching and the need for circuit protection.

Impedance of the Four Passive Circuit Components: R, L, C, and a PCB Trace

This article investigates the impedance of the three standard passive circuit components (R, L, and C) as well as the frequency response of a PCB trace.

Transmission Line Reflections at a Reactive Load

This article discusses the reflections on a transmission line at the capacitive and inductive loads.
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