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The Pierce oscillator is a type of electronic oscillator particularly well-suited for use in piezoelectric crystal oscillator circuits. Named for its inventor, George W. Pierce (1872–1956), [ 1 ] [ 2 ] the Pierce oscillator is a derivative of the Colpitts oscillator .
G. W. Pierce had an eye for finding the main sticking point in physical processes. For electronics, he saw that resonance was a key phenomenon. His five-part series "Experiments on resonance in wireless telegraph circuits in Physical Review (1904-7) are evidence of his leadership.
Coupled mode theory first arose in the 1950s in the works of Miller on microwave transmission lines, [1] Pierce on electron beams, [2] and Gould on backward wave oscillators. [3] This put in place the mathematical foundations for the modern formulation expressed by H. A. Haus et al. for optical waveguides.
There is often misunderstanding around Leeson's equation, even in text books. In the 1966 paper, Leeson stated correctly that "P s is the signal level at the oscillator active element input" (often referred to as the power through the resonator now, strictly speaking it is the available power at the amplifier input).
“Pierce” is at its best when it keeps us in a similar state of self-doubting tension, unable to guess our antagonist’s intentions, but glimpsing, in even his softest moments, a flash of ...
VCOs can be generally categorized into two groups based on the type of waveform produced. [4]Linear or harmonic oscillators generate a sinusoidal waveform. Harmonic oscillators in electronics usually consist of a resonator with an amplifier that replaces the resonator losses (to prevent the amplitude from decaying) and isolates the resonator from the output (so the load does not affect the ...
Roots of Pierce County homelessness. Tracking our homeless crisis, TNT compares homeless rates here in Pierce County with same-sized Snohomish County. Ours are high and climbing, theirs are going ...
The above analysis also describes the behavior of the Pierce oscillator. The Pierce oscillator, with two capacitors and one inductor, is equivalent to the Colpitts oscillator. [8] Equivalence can be shown by choosing the junction of the two capacitors as the ground point. An electrical dual of the standard Pierce oscillator using two inductors ...