u/According-Wrangler88

Barkhausen crieria proof for Colpitts oscillator
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Barkhausen crieria proof for Colpitts oscillator

Hey everybody! I just can not prove the Barkhausen criteria in my oscillator. It is a Colpitts oscillator, which should oscillate around 150kHz. Now i built this circuit and its working, does its job, just can not prove the unity gain and the phase shift criteria. In LTSpice i tride to simulate and i just can not get a 0 degrre phase shift (or the multiple of 360degree). In this configuration i get 17 dB and -261 degree. Is there a problem with my simulation, or any kind of suggestion, how to see the gain*phase shift in this simulation? Thanks in advance!

u/According-Wrangler88 — 13 days ago