The Colpitts Oscillator is an oscillator which uses the combination of two capacitors and one inductor to determine the frequency of oscillation. These two capacitors are used as the center tap for the circuit. The feedback needed for oscillation is taken from a voltage divider made by the two capacitors. The following schematic shows the basic Colpitts oscillator circuit diagram.
You can get more information about Colpitts oscillator circuit here:
>> Colpitts Oscillator History, Theory and Reference (wikipedia.org)
>> Tuning the Colpitts oscillator Components (electronics-tutorials.com)
>> Colpitts Oscillator Basic Operation and Simulation (falstad.com)
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