The Decibel
The human senses of hearing and vision don’t perceive the intensity of sound and light […]
Amplifiers and Oscillators
Basic Bipolar Transistor Amplifier
An amplifier circuit with a bipolar transistor. Component designators are discussed in the text. In […]
JFET Amplifier
An amplifier circuit with an FET. Component designators are discussed in the text. Above figure […]
Amplifier Classes
Amplifier circuits can be categorized as class A, class AB, class B, and class C. […]
Efficiency in Power Amplifiers
In power amplification, efficiency is important. It not only provides optimum output power with minimum […]
Drive and Overdrive
At A, an oscilloscope display of the signal output waveform from a properly operating class […]
Audio Amplification
The circuits you’ve seen so far have been general, not application-specific. With capacitors of several […]
Radio-Frequency Amplification
The RF spectrum extends upward in frequency to well over 300 GHz. The exact lower […]
How Oscillators Work
Once you know how amplifiers work, it’s easy to understand oscillators. All oscillators are amplifiers […]
Common Oscillator Circuits
Many circuit arrangements can be used to produce oscillation. The following several circuits are all […]
Oscillator Stability
In an oscillator, the term stability has two meanings: constancy of frequency (or minimal frequency […]
Audio Oscillators
Audio oscillators are used in myriad electronic devices including doorbells, ambulance sirens, electronic games, telephone […]