ts mes E in - is I to n of Co RE C2 Tank Circuit

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Answer the following with illustration and solutions.

3.)  A Colpitts Oscillator circuit having two capacitors of 30nF and 40nF respectively are connected in parallel with an inductor of 9.5mH. Determine the frequency of oscillatons of the circuit.

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LC-Tuned Circuits: Colpitts
This oscillator comes
Example: A Colpitts Oscillator circuit having two (2)
Vec
with a tank circuit in
capacitors of 24 nF and 240 nF respectively are
connected in parallel with an inductor of 10 mH.
Determine the frequency of oscillations of the
circuit, the feedback fraction, and draw the circuit.
which an inductor L is
connected in parallel to
the serial combination of
capacitors C1 and C2.
C,C2
Ceff =
C, + C2
1
Co
24 nF x 240 nF
C,C2
Ceff =
C, + C2
= 21.82 nF
24 nF + 240 nF
Ry Co
C
f =
2n x LCeff
1
1
f =
2n /LCeff 2n/(10 mH)(21.82 nF)
f = 10.77 kHz
C2
Tank Circuit
Transcribed Image Text:LC-Tuned Circuits: Colpitts This oscillator comes Example: A Colpitts Oscillator circuit having two (2) Vec with a tank circuit in capacitors of 24 nF and 240 nF respectively are connected in parallel with an inductor of 10 mH. Determine the frequency of oscillations of the circuit, the feedback fraction, and draw the circuit. which an inductor L is connected in parallel to the serial combination of capacitors C1 and C2. C,C2 Ceff = C, + C2 1 Co 24 nF x 240 nF C,C2 Ceff = C, + C2 = 21.82 nF 24 nF + 240 nF Ry Co C f = 2n x LCeff 1 1 f = 2n /LCeff 2n/(10 mH)(21.82 nF) f = 10.77 kHz C2 Tank Circuit
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