@shannrenn Hey shannrenn How did you get over here on JB's site? good to hear from you again.
yes, as I understand it the half bipolar circuit is north only. But still, running those transistors in parallel is an interesting challenge and needs a bit of finesse beyond just matching beta doesn't it?
John, using the half Bedini Cole circuit implies to me all north facing mags?
Is that correct?
Also since the MJL's are parallel it looks like you are using a resistor on the emitter to get a small voltage drop (0.1 -0.2 v @ nominal current) to get negative feedback to balance the current through the transistors, If so, about what ohms would you recomend to play with?
at around 1:00, spectrometer on the audio track shows a strong primary trace at ~650Hz and 2 weaker secondary traces at ~970Hz and ~300Hz. (650 * 60) / 3 = 13,000 (RPM was quoted around 10,000?) Are there 3 pulses per revolution of the armature?
John, touchy subject but I'm serious about 1kw - 5Kw generator for personal use. Do you have anything along those lines? & how much?
Begbucks 1 month ago
Really nice piece of work John.
k4zep 1 month ago
Are you ussing the sequential bipolar swith...? and how in the configuration of the rotor...?north sout...?
skycollection 1 month ago
Very cool. Can anyone tell me what kind of torque you can get out of this?
mrCbeems 2 months ago
howl ong has this type of motor ran for?
theonelinerkid 6 months ago
@shannrenn Hey shannrenn How did you get over here on JB's site? good to hear from you again.
yes, as I understand it the half bipolar circuit is north only. But still, running those transistors in parallel is an interesting challenge and needs a bit of finesse beyond just matching beta doesn't it?
BikoHatna 10 months ago
My god, this is REALLY spinning up.. I never imagined a coil of wire with no iron core whatsoever can make this much torque.
TheRadiastral 11 months ago
John, using the half Bedini Cole circuit implies to me all north facing mags?
Is that correct?
Also since the MJL's are parallel it looks like you are using a resistor on the emitter to get a small voltage drop (0.1 -0.2 v @ nominal current) to get negative feedback to balance the current through the transistors, If so, about what ohms would you recomend to play with?
BikoHatna 1 year ago
@Shanjaq Oops, at 4:13 there are 3 magnets on the timing disc. Makes sense :D
Shanjaq 1 year ago
at around 1:00, spectrometer on the audio track shows a strong primary trace at ~650Hz and 2 weaker secondary traces at ~970Hz and ~300Hz. (650 * 60) / 3 = 13,000 (RPM was quoted around 10,000?) Are there 3 pulses per revolution of the armature?
Shanjaq 1 year ago