hi kumaran
i just saw this fro the EDVGRAY yahoo group, about the adams motor, perhaps its another bit of incentive to go RV i have never seen this info before perhaps you can explain it to me in laymens
> So what Adams is saying is you pulse on once yourself, magnet
skims by, and then when you turn off current goes in the opposite
direction back down coil and gives another FREE push to outgoing magnet. IS THIS RIGHT?
> Yes, that is right. It is as simple as putting a diode
> across the transistor/mosfet/commutator. So, keep in
> mind that the timing must be correct. At TDC/register,
> when the pole pieces are in full alignment the power pulse
> is applied. If the pulse is held on too long the kickback
> through the diode and coil will be acting on empty space.
> Therefore, the power pulse length must be short enough
> to allow the maximum effect to take place just as the
> pole pieces still in but leaving register.
and hector wrote
Positive bias is switching the load at the negative as the
transistor switches off the diode conducts the CEMP negative to
negative and positive to battery positive across the same
LOAD ,coil ,LC, motor whatever returning POWER to battery
source , if such PULSE is forced to go semy resonant within a
logaritmic discharge path OU transformation will occur, coil will
drop its temperature as battery will charge until it dries out .
In reality is verry simple .. I posted this like 5 years ago and is
also in the files section.. the real work needed is TUNING .. this
simple circuit ..
(Only Tuning is Quite a Bitch) but it can be done
>Robert Agams was wrong. The magnetic field does not
reverse.
In case of an LC ringing it DOES reverse as C & L reverses potential
Pulse in, goes up reaches maximal & reverses ..
Aclaratory note :C must be AC oil capacitor not DC electrolitic
Yes, the magnetic field reverses, if we are using the coil-cap
combination. I once tested my little bedini-motor in the
attractive-mode drive, where the drive pulse was attractive instead of
repulsive and the timing was adjusted so, that drive pulse ends a bit
before top dead center. Also, I had a 20uF (or was it a 10uF) cap
connected in parallel to the drive coil. And this system worked OK,
the motor ran fine. The attractive drive pulse accelerated the rotor
towards the coil, the drive current was switched off before reaching
the coil, the back-emf charged the cap, cap discharged again throught
the coil and drove the magnetic field in the coil in opposite
direction, thus pushing the magnet away from coil.
> I think i understand what you are saying about the diode across
> transistor. My simple pulse motor uses just one Reed switch to
fire,> no transistor. But I understand what you are saying, and I think
> RainJ has a circuit much like mine in the files section.
>> So are you saying Adams was right, and with the diode you will get
> two pulses.
> 1) From your own battery.
> 2) From the re-coil going through the diode after clip-off pushing
> outgoing magnet away for free.
>> So in essence by putting the diode in you'll up the speed,
torque????> Is that it?> Why doesn't it do it without the diode. Diode's just recitfy right?
Battery is like a capacitor it charges coil as coil current reaches
maximal .. diode redirects electron path ..
here are some tips ..
http://www.spots.ab.ca/~belfroy/electricRes.html
http://personal.tcu.edu/~zerda/manual/lab6.pdf