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RF Amplifier Stability Factors and Stabilization Techniques

Learn ways to test an RF amplifier's stability, techniques to stabilize its operation, and how RF design software can help you do both.

3 days ago by Dr. Steve Arar

Adding Hysteresis to a Comparator Circuit: LTspice Lab

This article uses SPICE simulations to explain the functionality of hysteresis based on positive feedback in a comparator circuit.

November 22, 2023 by Robert Keim

Analyzing a Current-Mode-Controlled Buck Converter in LTspice

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

Implementing a Current-Mode-Controlled Buck Converter in LTspice

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

An A-Weighted Analog Filter that Mimics the Response of the Human Ear

In this project, we design an A-weighted analog noise filter for audio frequencies. The filter provides a variable frequency gain response that is similar to that of our hearing.

October 29, 2023 by John Woodgate

From VHDL Code to Real Hardware: Designing an 8-bit ALU

In this project we create an 8-bit arithmetic logic unit (ALU) in the VHDL language and run it on an Altera CPLD development board connected to a custom PCB with input switches and LED display.

October 22, 2023 by Kristijan Nelkovski

Designing a Current-Mode-Controlled Buck Converter in LTspice

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

Simulating Pulse-Frequency Modulation for DC-DC Converters

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

Closed-Loop Control for an LTspice Switching Regulator

Learn how to simulate a switching voltage regulator with a voltage-controlled PWM waveform in LTspice.

September 22, 2023 by Robert Keim

All About the Inverting Buck-Boost Converter

Learn about the inverting buck-boost converter, a switching voltage regulator designed to handle unstable input voltages.

September 20, 2023 by Robert Keim

Building a One-Shot Multivibrator with an ESP32 Terminal Display:  A Radio Shack Classics Circuit Remix

In this hands-on project, we will update a 1980s version of a one-shot (monostable multivibrator) circuit by giving it a modern, colorful output while also examining the circuit's operation.

September 17, 2023 by Don Wilcher

Output Voltage and Diode Current in a Boost Converter

Learn how output voltage and diode current affect the behavior of a step-up switching regulator.

September 13, 2023 by Robert Keim

Inductor Current in a Boost Converter: a SPICE Analysis

With the help of LTspice, we examine how inductor current affects the functioning of a boost converter.

September 08, 2023 by Robert Keim

Understanding the Operation of a Boost Converter

Learn how a step-up switching regulator generates an output voltage higher than its input voltage.

September 06, 2023 by Robert Keim

Introduction to the Boost Converter: Structure and Design

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

Choosing Capacitance Values for a Step-Down Switching Regulator

Designing a buck converter? Read this article for practical guidance on selecting an output capacitance value.

August 30, 2023 by Robert Keim

Choosing the Right Type of Output Capacitor for a Switching Regulator

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

Selecting Inductors for Step-Down Switching Regulators, Continued

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

Choosing Inductor Values for Step-Down Switching Voltage Regulators

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

LTspice Lab: Buck Converter Current and Voltage Dynamics

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