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Author Topic: U core vic  (Read 20961 times)

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Re: U core vic
« Reply #16 on: December 02, 2011, 03:22:44 am »
I've been informed that they high frequencies we are using can really through off digital meters, so I'm going to order some analog meter for testing. Is this the best way to go?
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Re: U core vic
« Reply #17 on: January 17, 2012, 02:17:15 am »
Saw the youtube video on the core problem.  Have you tried making it?  Would a Magnetite or ferric oxide one be good?  Is ferric oxide core OK?  see this flick to make your own:
Codie Gillespie: http://www.youtube.com/watch?v=xA8HalLJ92c&feature=mfu_in_order&list=UL.   might be a little fragile, that thin...
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Re: U core vic
« Reply #18 on: January 29, 2012, 02:32:07 am »
Sam, I haven't tried that, but I've thought about it. If you get the correct material I would think it could work out. I'm getting some custom cut soon. Thanks for the vid
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Re: U core vic
« Reply #19 on: January 29, 2012, 02:34:40 am »
I can seem to get the correct waveform, I tried doing what don and Tony have specified. Please see this video for more information
http://www.youtube.com/watch?v=h2EpgXg051g&feature=youtube_gdata_player

Any advice?
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Re: U core vic
« Reply #20 on: January 29, 2012, 03:25:25 am »
Hey dave,

Where did you get your bobbins made up?
I contacted a local plastic printing company and they gave me a quote of 100$ per set?

Anyone know where to get the best price on having some made?
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Re: U core vic
« Reply #21 on: January 29, 2012, 03:46:11 am »
Hms, You can get a much better deal. I'll send you a link when I get to a computer. The guy I got them from will do it at cost because he wants to help us out. He prints them on a 3d plastic printer. A guy I'm working with just got 3 steps for around $40
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Re: U core vic
« Reply #22 on: January 29, 2012, 07:20:10 am »
Ok, that would be awesome,

I'll look forward to it! Thanks Dave
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Re: U core vic
« Reply #23 on: February 21, 2012, 02:34:22 am »
Hms, did you get in touch with the bobbin guy? Send me a pv if not.

I'm home this week and trying to get some experiments in. I've been having some issues with my power supply lately so I took it apart today and found two of the capacitors are fried! Has anyone had this problem? I would imagine it happened because of back emf or inductor spikes? How can I prevent this from happening?
Anyway, I still haven't had any luck getting the signal we are after. I still have two identical sine waves.
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