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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 and one capacitor is equivalent to the Hartley oscillator.
An active-filter tuned oscillator is an active electronic circuit designed to produce a periodic signal. It consists of a bandpass filter and an active amplifier, such as an OP-AMP or a BJT. The oscillator is commonly tuned to a specific frequency by varying the reactant of the feedback path within the circuit. An example is the Colpitts ...
Colpitts oscillator schematic of working circuit === Source of image === Created by Madhu as a screenshot. Date: 5 November 2010, 10:18 (UTC) Source:
Edwin Henry Colpitts (January 19, 1872 – March 6, 1949) was a communications pioneer best known for his invention of the Colpitts oscillator.As research branch chief for Western Electric in the early 1900s, he and scientists under his direction achieved significant advances in the development of oscillators and vacuum tube push–pull amplifiers.
The Pierce oscillator, with two capacitors and one inductor, is equivalent to the Colpitts oscillator. 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 and one capacitor is equivalent to the Hartley oscillator."
The schematic above is the equivalent of Fig. 5 in his paper (Radioslavia design), redrawn for the use of a junction FET. L 1 and the capacitors form the resonant circuit of a Colpitts oscillator, and capacitors C v and C g also serve as the grid voltage divider. The circuit can be tuned with C 0. Example values are from his paper.
3.12 Chips using 5 nm technology. 3.13 Chips ... Toggle the table of contents. List of semiconductor scale examples. 2 languages ... (1996) and original AMD K6 (Model ...
The most prominent and widely used FET in modern microelectronics is the MOSFET (metal–oxide–semiconductor FET). There are different kinds in this category, such as MISFET (metal–insulator–semiconductor field-effect transistor), and IGFET (insulated-gate FET). A schematic of a MISFET is shown in Figure 1a.