### Author Topic: Phase-Locked Loop Project  (Read 6319 times)

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##### Re: Phase-Locked Loop Project
« Reply #8 on: July 19, 2010, 22:06:31 pm »
Yeah wheres the parrallel resistor , put something like 20-200 k
more like 10 ohms and i'm sure this will change the effect

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##### Re: Phase-Locked Loop Project
« Reply #9 on: July 19, 2010, 22:10:42 pm »
yea a 10 ohm resistor changes it back to a basic sine wave.

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##### Re: Phase-Locked Loop Project
« Reply #10 on: July 19, 2010, 23:31:38 pm »
I did the follower haithar .

Take 2 stainless spoons , take my multimeter .

Take tap water , add a bunch is salt , shake water , insert spoon and I was still getting 10+ k ohms

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##### Re: Phase-Locked Loop Project
« Reply #11 on: July 20, 2010, 05:36:30 am »
I'm also working on another circuit that will Auto-Tune to the resonant frequency of it's load.  So far I'm getting good results in my simulation program.  Here's a screen shot of one output from one setup, as you can see it also has the "Ringing" effect.

(http://www.globalkast.com/images/tonywoodside/Auto-Tuning_Resonance_output.bmp)

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##### Re: Phase-Locked Loop Project
« Reply #12 on: July 20, 2010, 09:53:27 am »
Looking very good, guys!

We have many options to get resonance with like 1khz. If we size the cap bigger and the coil smaller or vica versa.
I have a question: Stan said that the L must be higher then C. Why?

Steve

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##### Re: Phase-Locked Loop Project
« Reply #13 on: July 20, 2010, 13:19:26 pm »
I did the follower haithar .

Take 2 stainless spoons , take my multimeter .

Take tap water , add a bunch is salt , shake water , insert spoon and I was still getting 10+ k ohms
yes with a multimeter. but try a 12V battery connected to an ampmeter and then to the spoons. after a few seconds the current will rise heavily.
my tube cell was in the mega ohm range when measuring but pulled an amp easily at 12V (tap water).

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##### Re: Phase-Locked Loop Project
« Reply #14 on: July 20, 2010, 15:36:28 pm »
dankie

You got that reading because the multimeter don't test over 1v so water still behave as a capacitor.

Regards