Cross Coupled Pair Oscillator Part 1
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- Опубліковано 8 жов 2024
- / edmundsj
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Here I go over how to actually create an oscillator circuit utilizing the negative resistance of a cross-coupled pair.
Hope you found this video helpful, please post in the comments below anything I can do to improve future videos, or suggestions you have for future videos.
What my professor could not explain in 1 hour. This is excellent. Thanks Jordan!
Excellent. I have been looking for a video that explains an inductor using magnetism explained from the theory of relativity. I heard this from veritasium's video and started going in search of it. I haven't been able to bring out a convincing argument as to why emf on an L is proportional to di/dt. Generally analog designers stay at this abstracted level from maxwell. But then some books on frequency synthesizers explain using magnetic field and potential which again becomes unintuitive. I would be really happy to see someone teach it.
Hi Jordan,
Would you mind sharing what textbook you used in your class for covering the cross-coupled oscillator? Thanks so much!
sir that was so comprehensive lecture. Thanks. But I could not find the next lecture of its continuation. Can you please share me the link of next lecture?
Wasim Nawaz Haha I just realized I never created part 2! Thank you for finding this mistake, I will make it right away and will update this comment with the link.
Thank you sir. One more thing, if I have any question, how can I ask. I mean to say, if it is feasible for you, can I have your email ID?
The next video can be found here: ua-cam.com/video/8ubawoRvmC0/v-deo.html
I explain where to get the values for C and L, as well as how to make the thing controllable. Sure, it's edmundsj@uci.edu
Hi there. I really very like all your videos.
I am new to electronics.
I have one question.
When you connect Vdd, how come it biases the transistors through R since inductor would short it out?
That's the point. He is not trying to bias the resistor. He was trying to bias the drain of the transistors.
shouldn't it be input admittance and not impedance? The impedance is approximated as -2/gm
You're absolutely right, I wrote Zin when the expression on the other side is the admittance.
I've always wondered how people came up with these sorts of circuits. It seems woefully unintuitive from first glance. Same for other oscillator designs or Sallen-Key filters. Like, is it sometimes dumb luck? Years of research? Guessing?
high frequency model.