Latest Technical Articles

We use a Raspberry Pi and free software to build a test platform for IoT systems.

We use a Raspberry Pi and free software to build a test platform for IoT systems.

This article highlights a selection of circuits used for amplitude modulation, including a switching modulator built with…

This article highlights a selection of circuits used for amplitude modulation, including a switching modulator built with just one diode and a circuit that incorporates a Class C power amplifier.

In Part 2 of this two-part series, we turn our hardware assembly into a functioning soundboard by adding the necessary…

In Part 2 of this two-part series, we turn our hardware assembly into a functioning soundboard by adding the necessary code in Arduino IDE and uploading soundbites.

Using the second-harmonic peaking amplifier as an example, we explore the basic principles of inverse Class F amplification.

Using the second-harmonic peaking amplifier as an example, we explore the basic principles of inverse Class F amplification.

Learn how to turn an ATmega328 microcontroller and an assortment of readily available parts into a dedicated hardware soundboard.

Learn how to turn an ATmega328 microcontroller and an assortment of readily available parts into a dedicated hardware soundboard.

Among modulator circuits, the ring modulator stands out as one of the most effective for generating AM signals. Learn why…

Among modulator circuits, the ring modulator stands out as one of the most effective for generating AM signals. Learn why in this article.

Learn how this power amplifier uses a quarter-wavelength transmission line to achieve up to 100% efficiency.

Learn how this power amplifier uses a quarter-wavelength transmission line to achieve up to 100% efficiency.

Using the example of a diode-bridge modulator, we examine the basic principles of switching modulators for AM signal generation.

Using the example of a diode-bridge modulator, we examine the basic principles of switching modulators for AM signal generation.

Learn about the working principles of near-field probes and their applications in troubleshooting EMI issues.

Learn about the working principles of near-field probes and their applications in troubleshooting EMI issues.

We explore how adding a small amount of voltage ripple to a Class F amplifier increases its efficiency, then work through…

We explore how adding a small amount of voltage ripple to a Class F amplifier increases its efficiency, then work through a design example.

Learn how the balanced modulator addresses shortcomings of the square-law modulator when generating DSB-SC and…

Learn how the balanced modulator addresses shortcomings of the square-law modulator when generating DSB-SC and conventional AM signals.

In this article, we derive the design equations for the third-harmonic peaking Class F amplifier with the flattest…

In this article, we derive the design equations for the third-harmonic peaking Class F amplifier with the flattest possible collector voltage waveforms.

In this article, we explore the foundational concepts of square-law modulators and examine some circuit implementations.

In this article, we explore the foundational concepts of square-law modulators and examine some circuit implementations.

This article explores the basic principles of Class F operation and introduces the third-harmonic-peaking Class F amplifier.

This article explores the basic principles of Class F operation and introduces the third-harmonic-peaking Class F amplifier.

Learn about conventional AM, an amplitude modulation technique commonly used in commercial radio broadcasting.

Learn about conventional AM, an amplitude modulation technique commonly used in commercial radio broadcasting.

In this project article, we'll use a 555 timer IC to build an iconic musical instrument from the early days of synthesizers.

In this project article, we'll use a 555 timer IC to build an iconic musical instrument from the early days of synthesizers.

In this article, we discuss a tuning method designed specifically for Class E RF amplifiers.

In this article, we discuss a tuning method designed specifically for Class E RF amplifiers.

Learn about the advantages and disadvantages of DSB-SC amplitude modulation.

Learn about the advantages and disadvantages of DSB-SC amplitude modulation.

In this project article, we’ll create a programmable device that alerts users to changes in ambient light levels. Along…

In this project article, we’ll create a programmable device that alerts users to changes in ambient light levels. Along the way, we’ll learn about astable multivibrators and the Darlington pair.