FUELLESS CAR PROTOTYPE by ISMAEL MOTOR

[Groundloop]

Thanks Magluvin.


This module is capable of driving many parallel MOSFETs or IGBTs.
Peak driver current is 9A. I've got really good IGBTs right now and paralleling them might not be necessery
as it all comes down to low resistance of the shorting "contact" according to Ismael. IGBTs are better in that respect.
My thoughts on this is the dv/dt switching time plays even more important role than the really low resistance.
With this config I am able to short ends of a coil with a  potential difference of 1000V with 25ns rise/fall time
Anyway we will see...

@kEhYo77,

Thanks for posting the circuit drawing at Reply #209.
Are you willing to post the component values/numbers also?

Nice circuit BTW. :-)

GL.

[kEhYo77]

Hi Groundloop.

Now with components.

kEhYo

[Groundloop]

Hi Groundloop.

Now with components.

kEhYo

@kEhYo77,

Thank you for posting components values. :-)

GL.

[konehead]

to all:
important to use paralell MOSFETS, not transisitors, in coil shorting circuits like what Ismael shows in that video with hand-drawings...mosfets are lower resistance and also paralell easily.
to mile too-HIGH:
yes I am familiar with electronics too, so is practically eveyrone here. glad you admit you really know nothing about dynometers so what you say in criticscm about Ismael being tested in DOE lab in Philipines is something to ignore completely. 
the testing is on video if you want to watch it, and the testing results are published if you want to read them....if you dont, then you should not write about stuff you know nothing about and only conjecture and opinionate.
cap discharge formula to figure WATTS:
FARAD value of cap / 2
X
(maximum voltage in cap SQUARED) - (voltage in cap after discharge SQUARED)
X
discharge-events PER SECOND = WATTS
this is how you figure out how much power you have from discharging caps to load...use a scope. for this

[MileHigh]

Konehead:

I didn't ask you about the output measurement, I asked you about the input measurement.  So what about the input?

As far as the dynamometer goes my instincts are good and they are probably right.  Plus I have read several comments with the same line of reasoning.  Basically all of us with any experience in electronics have observed and are aware of this phenomenon.  Just take the example of a digital multimeter, the lower the value on the display the less accurate the measurement is.

I saw those clips from about a year ago.  There was no proper description of how they measured the input power either, and you probably needed a DSO to do it properly.  Without a DSO it could have been be a very difficult measurement to make.   So for that DOT test both the input power measurement and the output power measurement are suspect.  On top of that, if he really had a working over unity system based on coil shorting, there was no reason at all to put it in a car.  The logical thing to do would have been to put the circuit on a bench and do the measurements there.

MileHigh