Hartley Oscillator

jojo February 4, 2014 14 Comments
Hartley oscillator circuit. Hartley oscillator was invented in 1915 by the american engineer Ralph Hartley while he was working for the Western Electric company. The original design was tube based and he got a patent for it in the...
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Clapp Oscillator

jojo March 28, 2011 No Comments
  The Clapp oscillator shown in figure. is a refinement of the Colpitt’s oscillator. The single inductor found in the Colpitt’s oscillator is replaced by a series L-C combination. Addition of capacitor Ca in series with L improves the...
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Colpitts Oscillator

jojo August 13, 2018 5 Comments
Colpitts Oscillator An oscillator is used to produce electronic signal with oscillating periods. Eg: Sine wave, square wave etc.. Oscillators are broadly classified into two – linear oscillators and non-linear oscillators. As the name implies, linear oscillators are used...
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Tuned Base Oscillator

jojo February 4, 2014 No Comments
Tuned base oscillator. Tune base oscillator is another type of transistor based LC oscillator where the tuned circuit (tank circuit)  is placed between the base and ground of the transistor. The tuned base oscillator is also called “Armstrong oscillator”...
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Tuned Collector Oscillator

jojo February 4, 2014 4 Comments
Tuned collector oscillator. Tuned collector oscillation is a type of transistor LC oscillator where the tuned circuit (tank) consists of a  transformer and a capacitor is connected in the collector circuit of the transistor. Tuned collector oscillator is of...
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LC Oscillators and Types

jojo February 4, 2014 1 Comment
LC oscillators. LC oscillator is a type of oscillator where a LC (inductor-capacitor) tank circuit is used for giving the required positive feedback for sustaining the oscillations. The LC tank circuit is also termed as LC resonant circuit or...
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Transistor Oscillators

jojo March 28, 2011 2 Comments
Essentials of Transistor Oscillators An oscillator must have the following three elements Oscillatory circuit or element. Amplifier. Feedback network. The oscillatory circuit or element, also called the tank circuit, consists of an inductive coil of inductance L connected in...
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Oscillator Operation

jojo March 4, 2011 2 Comments
How an oscillator operates ? Related Articles BASIC OSCILLATORY CIRCUITS TRANSISTOR PHASE SHIFT OSCILLATOR NEGATIVE RESISTANCE OSCILLATORS HARTLEY OSCILLATOR To know the basics of oscillators, its frequency stability, types of oscillations, different types of oscillators and so on, use...
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Frequency Stability of Oscillators

jojo March 2, 2011 No Comments
Related Posts OSCILLATOR OPERATION BASIC OSCILLATORY CIRCUITS CLAPP OSCILLATOR WIEN BRIDGE BRIDGE OSCILLATOR LC OSCILLATORS AND TYPES Even if an oscillator is set at an initial frequency, it cannot be maintained throughout. They keep on changing either in a...
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Basic Oscillatory Circuits

jojo March 3, 2011 No Comments
Related Posts DAMPED AND UNDAMPED OSCILLATIONS OSCILLATOR OPERATION TUNED BASE OSCILLATOR COLPITT’S OSCILLATOR CRYSTAL OSCILLATOR Basic Oscillator Circuit The oscillatory circuit, also called the L-C circuit or tank circuit, consists of an inductive coil of inductance L connected in...
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