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#Post#: 3951--------------------------------------------------
Re: Buck Boost Idea
By: nessprojects Date: July 23, 2014, 7:38 pm
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Looking good.....All you have to do now is test it in the real
world. ;)
#Post#: 3964--------------------------------------------------
Re: Buck Boost Idea
By: nessprojects Date: July 25, 2014, 4:26 pm
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It might work but I would be a little concerned about the kick
from your transformer blowing out your mosfet + efficiency might
not be good due to the frequency (16khz) fed into a transformer
made for 60Hz.
#Post#: 3992--------------------------------------------------
Re: Buck Boost Idea
By: nessprojects Date: July 27, 2014, 9:28 pm
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Looks good....Have you managed to determine the frequency that
is sweet, or does it vary acording to turbine speed ?.
It is a simple circuit to me but could be complex to some !.
#Post#: 3994--------------------------------------------------
Re: Buck Boost Idea
By: Otis Date: July 28, 2014, 8:30 am
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I get it.. mostly. What's the Schmitt trigger doing I'm a little
cloudy on.
Think this looks promising Cg. Love a video.
#Post#: 3999--------------------------------------------------
Re: Buck Boost Idea
By: nessprojects Date: July 28, 2014, 4:16 pm
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Wow....Thats a lot lower frequency than i thought it would be.
Great work.
#Post#: 4005--------------------------------------------------
Re: Buck Boost Idea
By: Otis Date: July 28, 2014, 7:06 pm
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I get the booster part.. Aren't there set points of some sort
with the Schmitt. What is the signal the Schmitt is working
with. Is this voltage controlled?
#Post#: 4008--------------------------------------------------
Re: Buck Boost Idea
By: nessprojects Date: July 29, 2014, 6:12 pm
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Hmmm...That seems to be saying to me that the coils are not
soaking up all the power.....in other words the frequency is too
high but that is hard to believe with the low frequency it is
running at.....Strange.
#Post#: 4013--------------------------------------------------
Re: Buck Boost Idea
By: Otis Date: July 29, 2014, 11:09 pm
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Thanks for the trigger lesson. So once you accumulate voltage
that exceeds a trigger point(5v) it dumps to the booster,and
turbine rpm determines how fast that voltage is accumulated? The
booster works with a constant input (5v trigger) voltage?
Hey what cap size did you settle on for your Ness boost mod that
your comparing this circuit to?
#Post#: 4017--------------------------------------------------
Re: Buck Boost Idea
By: Otis Date: July 30, 2014, 9:31 am
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Gotcha. I get how a switch(transistor), coil(inductor) and
diode(flyback) , produce the inductive voltage increase and
boost beyond batt voltage. I have no experience with Schmitt
triggers, and didn't totally understand how it controlled
controlled your fet
thanks for your help.
#Post#: 4020--------------------------------------------------
Re: Buck Boost Idea
By: Otis Date: July 30, 2014, 4:13 pm
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I'd really like, to get this circuit working with my seagull. I
have seen some amazing stuff out of the retro load
controller(better start up/exponential current output) , but it
needed an alt that hit cutin by 14mph and mine didn't.. The dual
interleaved is supposed to track at least to 25 mph and my alt
will cutin. Wish I knew more about tuning.
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