8 Threads found on edaboard.com: Barkhausen Criterion
How can I able to know the magnitude of the open loop gain of a ring VCO and plot it using cadence virtuoso?kindly help me.
Analog Circuit Design :: 12-21-2014 13:29 :: Debasish_Halder :: Replies: 0 :: Views: 4
How can I show that a ring vco is stable with a frequency range and satisfy barkhausen criterion using cadence virtuoso?what king of plot a have to plot for that?
Best answers for best (complete) questions: Show us the circuit.
Analog Circuit Design :: 12-21-2014 07:08 :: LvW :: Replies: 4 :: Views: 307
Can anyone explain how does the bjt in oscillator automatically adjusts gain so aas to give appropriate output with input as feedback.
I think, the most simple and understandable explanation of the Hartley oscillator is as follows:
1.) To fulfill the oscillation criterion (barkhausen) we need a feedback cir
Analog Circuit Design :: 11-19-2014 03:39 :: LvW :: Replies: 2 :: Views: 199
my question is why did barkhosen criteria specify that 180deg phase shift is very crucial for oscillations to take place??? please elaborate a little..please..
It is not true that barkhausen did "specify 180 deg phase shift" for oscillations.
The barkhausen criterion requires a loop gain of unity - which me
Analog Circuit Design :: 10-14-2013 03:05 :: LvW :: Replies: 22 :: Views: 727
The barkhausen criterion requires a loop gain of equal or larger than unity and a phase shift of 360 deg at a certain frequency.
In a typical ring oscillator the loop gain always is larger than unity. Each stage has an inherent delay, which can be increased using external capacitors.
There is one particular frequency Fo for which this total delay
Analog Circuit Design :: 07-20-2012 15:49 :: LvW :: Replies: 3 :: Views: 606
What's the matter...wrong forum?
OK, I´ll try to give you some hints.
In general, you have two alternatives to analyze the CLAPP oscillator:
a) The circuit is considered as a two pole oscillator based on the negative resistance principle. In this case, there is no "barkhausen" criterion because this condition is
RF, Microwave, Antennas and Optics :: 03-14-2010 17:22 :: LvW :: Replies: 3 :: Views: 2493
My question may be absurd but can anyone tell me whether we can apply Barkhusen criteria for astable multivibrators? If it is possible,how?
No, you can't.
The reason is simple: The barkhausen oscillation criterion is based on the loop gain of a circuit with feedback. Any "gain" by definition is a small signal par
Analog Circuit Design :: 01-18-2010 10:38 :: LvW :: Replies: 1 :: Views: 1065
a phase shift oscillator is just basically a type of oscillator. a phase shift oscillator is a feedback oscillator. for a feedback circuit to be an oscillator it must satisfy two conditions (known as the barkhausen criterion). one is that the gain around the closed loop should be unity. and the phase shift around the closed loop should be zero.
Elementary Electronic Questions :: 01-08-2005 13:40 :: samcheetah :: Replies: 2 :: Views: 2631