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#Post#: 6250--------------------------------------------------
Re: NessProjects Boost Circuit
By: CG Date: February 15, 2017, 10:51 am
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I built my version for my single phase vawt/pma. Tested it this
morning and it's running right now just great.
It limits the battery voltage to 14.6 vdc. The led is flashing
when the battery is charging and goes out when the vawt stator
is shorted.
Here is what I think is my final draft of the circuit.
P.S. Not shown in the schematic is a 1N4007 diode in series
with the LED.
[IMG]
HTML http://i50.photobucket.com/albums/f324/picman1919/download31861e35__2fmnt_2fexternal_sd_2fBOOST-SPEED-CHARGE5-2_zpsiq80hllv.png[/img]
#Post#: 6251--------------------------------------------------
Re: NessProjects Boost Circuit
By: LynxWind Date: February 16, 2017, 6:30 pm
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Awesome. Much better than what I did. I'll give it a try and
get back. I like the LED that lights when charging. Does it
flash at low rpm?
#Post#: 6252--------------------------------------------------
Re: NessProjects Boost Circuit
By: CG Date: February 17, 2017, 5:22 am
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@lynxwind
yes it does flash at low rpm. I couldnt bring myself to add
another component for voltage specific. But you can gauge by the
flash rate if its charging. But it actually depends on what the
battery level is whether or not it's charging,
here is an economy version i think works.
i put in a switch that turns boost on or off.
[IMG]
HTML http://i50.photobucket.com/albums/f324/picman1919/BOOST-SPEED-CHARGE6.0_zpsizcwzwvx.gif[/img]
#Post#: 6253--------------------------------------------------
Re: NessProjects Boost Circuit
By: bajanreddragon Date: February 17, 2017, 9:01 am
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Hi i'm a newbie and i was wondering what voltage value i should
use for the caps in the boost circuit?? Many many thanks
#Post#: 6254--------------------------------------------------
Re: NessProjects Boost Circuit
By: LynxWind Date: February 17, 2017, 11:16 am
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I would suggest 35-50 volt. The 10 volt would probably pop open
under a hard load.
#Post#: 6255--------------------------------------------------
Re: NessProjects Boost Circuit
By: CG Date: February 17, 2017, 3:27 pm
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I think the design rule of thumb is 25% higher than the highest
voltage expected. So I guess it depends on alternator output.
#Post#: 6256--------------------------------------------------
Re: NessProjects Boost Circuit / turbine charge controller
By: CG Date: February 25, 2017, 10:12 am
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My controller is finished and working great. The clicking is the
relay controlling the voltage as well as the turbine speed.
This video is the Economy Version working at controlling the
PVC-PP Savonius VAWT.
Thanks Marcus for the inspiration and concept.
HTML https://drive.google.com/file/d/0B5SzA4zJv0RGVnA5RmRIeEJlWTg/view?usp=drivesdk
HTML https://youtu.be/67KsgsKxTtc
#Post#: 6257--------------------------------------------------
Re: NessProjects Boost Circuit
By: LynxWind Date: February 26, 2017, 7:21 am
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Your circuit looks very neat and clean. I was going to put one
together today and test. I'm glad to see it works so well.
Thanks for the video.
#Post#: 6258--------------------------------------------------
Re: NessProjects Boost Circuit
By: CG Date: February 26, 2017, 8:11 am
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FYI.
You have to measure charge current immediately after the
capacitors and before the voltage divider.
if you have any resistance between the circuit and the battery,
the circuit will measure boosted turbine voltage instead of
battery voltage. if the relay chatters you might have resistance
between the battery and the circuit.
#Post#: 6266--------------------------------------------------
Re: NessProjects Boost Circuit
By: lynx wind Date: March 17, 2017, 2:14 pm
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Well, I have been quite busy so I didn't make the CG Boost
Controller version yet. I have been selling a lot of the LYNX
boost controller kits and haven't stopped to consider a change.
It occurred to me today that the one I am making and probably
the CG version can be easily upgraded (adapted) to also have a
solar panel input up to the limits of the controller's component
amp rating.
When the voltage rises to around 14.5 volts the relay opens the
normally closed contacts shorting the alt. This can also open
the circuit from a solar panel. Positive lead from the solar
panel goes to the positive to battery and the negative of the
solar panel goes to the relay nc pin.
I did add the green led charge indicator which works like a
charm. Thanks CG - :)
The circuit below is not built on a PC board. It is soldered
together and can be mounted in an enclosure or on a plate.
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