Learn about an important design technique for high-power RF transmitters: feed-forward linearization, which operates on the principle of distortion signal cancellation.
Learn about an important design technique for high-power RF transmitters: feed-forward linearization, which operates on the principle of distortion signal cancellation.
We examine RF demodulation circuits used for both double-sideband suppressed carrier (DSB-SC) signals and double-sideband…
We examine RF demodulation circuits used for both double-sideband suppressed carrier (DSB-SC) signals and double-sideband signals with a carrier.
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.
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 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.
In this article, we discuss the basics of RF modulation and how it affects the performance of communication systems.
In this article, we discuss the basics of RF modulation and how it affects the performance of communication systems.
In this article, we examine the oscillation behavior of an LED blinker circuit in QSPICE and learn how to control its…
In this article, we examine the oscillation behavior of an LED blinker circuit in QSPICE and learn how to control its ON-time and pulse repetition frequency.
Learn how to design and verify analog circuits using SLiCAP, a Python-based symbolic simulator program.
Learn how to design and verify analog circuits using SLiCAP, a Python-based symbolic simulator program.
In this article, we'll walk through the process of importing SPICE models into QSPICE and demonstrate the basics of using…
In this article, we'll walk through the process of importing SPICE models into QSPICE and demonstrate the basics of using the QSPICE waveform viewer, including measurement markers.
In this article, we examine how non-zero switch transition times impact the efficiency of a Class E power amplifier.
In this article, we examine how non-zero switch transition times impact the efficiency of a Class E power amplifier.
In this article, we'll walk through the process of moving an LTspice circuit into QSPICE and learn some QSPICE schematic…
In this article, we'll walk through the process of moving an LTspice circuit into QSPICE and learn some QSPICE schematic techniques.
In this article, we examine the filtering requirements of Class E power amplifiers with less-than-ideal Q-factors.
In this article, we examine the filtering requirements of Class E power amplifiers with less-than-ideal Q-factors.
This article, the first in a four-part series on moving from LTspice to QSPICE, introduces an LED blinker circuit that…
This article, the first in a four-part series on moving from LTspice to QSPICE, introduces an LED blinker circuit that we’ll simulate with both programs.
In this article, we analyze the operation of the Class E amplifier and examine the underlying assumptions of its design equations.
In this article, we analyze the operation of the Class E amplifier and examine the underlying assumptions of its design equations.
Designing a Class E RF amplifier? Learn how to choose the correct level of damping and calculate the optimum component…
Designing a Class E RF amplifier? Learn how to choose the correct level of damping and calculate the optimum component values for your circuit.
Class E RF amplifiers are designed to produce switch waveforms with a specific set of characteristics. In this article,…
Class E RF amplifiers are designed to produce switch waveforms with a specific set of characteristics. In this article, we discuss the advantages and limitations of these waveforms.
Learn how Class E amplifiers improve on the efficiency of Class D amplifiers at RF frequencies.
Learn how Class E amplifiers improve on the efficiency of Class D amplifiers at RF frequencies.
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