Clapp oscillator

  
As shown in the Colpitts oscillator based on the deformed oscillator basis is formed by an oscillator Clapp, Colpitts oscillator with the fundamental differences between the re
Clapp oscillator - schematic

sonant feedback circuit has an additional capacitor C3 and inductors It is connected in series. Because C3 is much smaller than cl and C2, the oscillation frequency is almost entirely determined by C3. Because cl and cz has one end grounded, the transistor junction capacitance and other stray electrical capacitance will and C. And end with respect to the formation of C2 in parallel, so that their actual value has changed changed, however C3 will not be affected, so you can produce a more accurate and stable oscillation frequency oscillation.




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