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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: **245**

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: **164**

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: **647**

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: **565**

What's the matter...wrong forum?
/bump
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: **2372**

Hi,
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: **1044**

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.

Electronic Elementary Questions :: 01-08-2005 13:40 :: samcheetah :: Replies: **2** :: Views: **2545**

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