This article, the second in a series on hysteresis, explains two types of hysteresis found in engineered systems.
November 15, 2023 by Robert Keim
Found both in nature and in engineered systems, hysteresis is a crucial design technique in certain electronic applications. In this article, we'll introduce its theoretical underpinnings.
November 12, 2023 by Robert Keim
In this article, we use voltage waveforms to explore the electrical behavior of key subcircuits within a CMC buck converter.
November 08, 2023 by Robert Keim
In this article, we use LTspice to discuss the operation of the voltage error amplifier and PWM generator in a current-mode-controlled (CMC) step-down regulator.
November 05, 2023 by Robert Keim
In this article, we’ll learn about current-mode control (CMC) for switching regulators by examining the layout of an example circuit in LTspice.
October 18, 2023 by Robert Keim
This article provides a primer on current-mode control, a widely used alternative to voltage-mode control that provides faster response to changes in input voltage and load current.
October 13, 2023 by Robert Keim
Using a pulse-frequency-modulated buck converter as an example, this article describes techniques for incorporating PFM into switching regulator design and simulations.
September 29, 2023 by Robert Keim
What’s the difference between PFM and PWM? We explore pulse-frequency modulation as a technique for controlling the output voltage of a switch-mode voltage regulator.
September 27, 2023 by Robert Keim
Learn how to simulate a switching voltage regulator with a voltage-controlled PWM waveform in LTspice.
September 22, 2023 by Robert Keim
Learn about the inverting buck-boost converter, a switching voltage regulator designed to handle unstable input voltages.
September 20, 2023 by Robert Keim
Learn how output voltage and diode current affect the behavior of a step-up switching regulator.
September 13, 2023 by Robert Keim
With the help of LTspice, we examine how inductor current affects the functioning of a boost converter.
September 08, 2023 by Robert Keim
Learn how a step-up switching regulator generates an output voltage higher than its input voltage.
September 06, 2023 by Robert Keim
What is a boost converter? This article discusses key initial design tasks for a step-up voltage regulator and describes its structure.
September 01, 2023 by Robert Keim
Designing a buck converter? Read this article for practical guidance on selecting an output capacitance value.
August 30, 2023 by Robert Keim
Capacitors are a crucial component of step-down switching regulators. Learn about the different capacitor types and how each one affects regulator performance.
August 25, 2023 by Robert Keim
Are you picking out components for a step-down switching regulator? Learn how to think about inductance values and inductor current when choosing an inductor.
August 23, 2023 by Robert Keim
Proper inductor selection is one key to the successful design and implementation of a switching regulator. This article will help you understand the relationship between the inductor value and circuit performance.
August 16, 2023 by Robert Keim
Improve your understanding of switch-mode voltage regulators by examining the electrical characteristics of a step-down converter during the on and off portions of its switching cycle.
August 09, 2023 by Robert Keim
This article will analyze in detail the operation of a step-down DC/DC voltage converter. Using SPICE simulations, we will investigate the output voltage settling, voltage ripple, and inductor and load currents.
July 30, 2023 by Robert Keim
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