Electronic Devices - Oscillator Circuits - Discussion
Discussion Forum : Oscillator Circuits - General Questions (Q.No. 33)
33.
Refer to this figure. Determine the frequency of oscillation, if any.
Discussion:
5 comments Page 1 of 1.
Savina said:
6 years ago
Here F = 1.44/(RA+2RB)c.
(1)
Srinivasan said:
1 decade ago
f=1/(0.69*(R1+2R2)*C)
M.V.KRISHNA/PALVONCHA said:
1 decade ago
What is this 0.69 instead of 2*pi?
Vasudha said:
1 decade ago
0.693 means it is the value of ln(2).
High time T = ln(2) * C(Ra+Rb).
f = 1/T.
High time T = ln(2) * C(Ra+Rb).
f = 1/T.
Bbb said:
1 decade ago
The circuit given here is astable multivibrator and hence the frequency of oscillations is f=1/t and t=0.69(ra+rb)c.
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