John K.'s S1GT
Hi All,
I Hope you all had a good Christmas. Unfortunately I came down with the flu on the first day of my holidays but managed to spare a few hours in the shed on my "S1GT".
I now have it running on some good deep cycle batteries, configured for 36V on the front and back end. I ran it all day. The front end settled into 36.7V whilst the back end would not get above 39.7V. The cap is now 13,600uF 50V and dumps in just under a second. After resting for an hour the primaries recovered to 37.0V whilst the secondary bank is at 39.2V.
The SCR is now triggered with a 1N4732 (4.7V 1W zener) in series with 2 x super bright LEDs which dumps at around 8V over the top of the battery voltage.
One very interesting observation - the shield on the main coil has been permanently magnetized and shows that it is a MONOPOLE South pole ALWAYS! I could only pick this up with my compass when I had the coil and the bonded shield on my bench away from any other magnets. Weird!!
Back to bed...
John K.
Hi All,
I Hope you all had a good Christmas. Unfortunately I came down with the flu on the first day of my holidays but managed to spare a few hours in the shed on my "S1GT".
I now have it running on some good deep cycle batteries, configured for 36V on the front and back end. I ran it all day. The front end settled into 36.7V whilst the back end would not get above 39.7V. The cap is now 13,600uF 50V and dumps in just under a second. After resting for an hour the primaries recovered to 37.0V whilst the secondary bank is at 39.2V.
The SCR is now triggered with a 1N4732 (4.7V 1W zener) in series with 2 x super bright LEDs which dumps at around 8V over the top of the battery voltage.
One very interesting observation - the shield on the main coil has been permanently magnetized and shows that it is a MONOPOLE South pole ALWAYS! I could only pick this up with my compass when I had the coil and the bonded shield on my bench away from any other magnets. Weird!!
Back to bed...
John K.
but it charges) 1.2 amps+ using about 185ma on motor. What"s different I found is that I can use the energy (magnetic) from center coil top as I extended the rods and applied an coil running 12 G9 LED lights. It puts no load on the system like it does when coil is used directly off of the neos on the rotor. (Got something for nothing mabye?) I think from some of the work I do with John that maybe an solid state switch or a FET might be something we want to experment with on the secondary battery. Any way thats where I,m at on learing anout the BFW... so far. See video if you like.
Very nice looking work btw!
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