Author Topic: ALTERNATOR  (Read 39514 times)

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Re: ALTERNATOR
« Reply #96 on: September 03, 2010, 21:29:34 pm »
i TRIED TO BUT DIDN´T UNDERSTOOD... WHY THE FULL WAVE BRIDGE AND THE RESISTOR IN SERIES WITH THE CAPACITOR, I THINK YOU REPRESENTED THE 3 PHASES RIGHT?
 
I´M WORKING ON A SCHEMATIC, ACTUALLY ITS READY AND IS =TO THE ELECTRON EXTRACTION STAN SHOWED BUT THE SECONDARY IS ONE OF THE PHASES OF THE ALTERNATOR AND THE FIELD COIL IS FEED WITH THE AC RESONANT FREQUENCY..
 
tHE FACT IS THAT MY COMPUTER GOT BROKEN SOMEHOW SO I CANNOT MAKE ANY DRAWINGS AND I HAVE NO SCANNER OR ANYTHING THAT I COULD USE TO COMUNICATE BETTER WITH YOU...
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bUT THE ALTERNATOR BEING CONSTANTLY PUSHED BY THE MOTOR WILL GIVE IT THE ABILITY OF ACCELERATE IF DIRECT CURRENT FROM FROM ITS SECONDARIES... iF THE FIELD COIL IS FEED WITH AC ... YOU JUST NEED TO FIND THE RIGHT POLARITY OF THE TWO COILS. AND REMEMBER THEY SHOULD BE COULPLED...
 
DO YOU UNDERSTAND THIS?

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Re: ALTERNATOR
« Reply #97 on: September 03, 2010, 21:31:57 pm »
DO YOU REMEMBER THE STAN HAND DRAWINGS, CHECK THEM OUT ANOTHER TIME.
 
oPEN AN OLD PHYSICS CHEMISTRY BOOK AND YOU SEE THE REPRESENTATION JUST THE SAME AS HE DID...
 
 

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Re: ALTERNATOR
« Reply #98 on: September 03, 2010, 22:44:05 pm »
DO YOU REMEMBER THE STAN HAND DRAWINGS, CHECK THEM OUT ANOTHER TIME.
 
oPEN AN OLD PHYSICS CHEMISTRY BOOK AND YOU SEE THE REPRESENTATION JUST THE SAME AS HE DID...

Can you Be more specific?

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Re: ALTERNATOR
« Reply #99 on: September 03, 2010, 23:22:27 pm »
im sorry seb this i think would go with the unit stan made that uses variable transformer not the alternator if you want me to move it i will

the drawing seb speaks of is the napkin drawing

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Re: ALTERNATOR
« Reply #100 on: September 03, 2010, 23:29:01 pm »
what i think is the pic above would allow the cell to have direct connection to rectifier and the scr would gate positive  to ground.. i think there may be a way to allow scr to dead short to ground to allow cap discharge rather using scr to send charge to fuel cell.. i think there is a way it will improve switching with scr then what stan shows..

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Re: ALTERNATOR
« Reply #101 on: September 06, 2010, 00:49:11 am »
Hello guys
 
I´m finishing to construct the thing i created a new pll cd4046 circuit with 4429 driver and 4 divide byu 10 dividers cd4017 giving it a range of 150kz to 10hz very precise frequency. i´m using a irfp 250  as the transistor and i´m using simply a 60APU06 diode in parallel with the field coil of the alternator. This circuit is being supplied by 12v from car batery... and regulated by a lm7812...
obs nothing get hot
 
only the motor that is driving the alternator, is a 300 watts motor and is fixed speed, i´m getting 120hz out from the alternator witch indicates that the rpm is about 1200 i think, please correct me if i´m wrong... 
 
Now i need to finish my coil its like this:
i used as coil former a pvc pipe about 10cm diameter  25cm long, i separated two pieces of 22 meters (one for each coil)  of 35amp wire (those for house wiring, I think is 6mm2 area,) that allowed me to make a coil of about 90 turns divided in two layers (well insulated with nomex (transformer HighV isolation) and resulted about 246uh of inductance... Now i´m going to coil the other coil on another pvc pipe witch is a litle bigger than the first one just got one here that matches perfect the size, so i can move one coil in relation to the other to be able to change the coupling... I will also make taps on it to change its transformer action ratio =) inductance... 
 
than i will just need to make the circuits for the drivers of the igbts... but afer that i finish this coil i will try using only two diodes... to check if i get some resonance...
 
Oh my filtered water here connected to the alternator builded up only few bubles and at 3,8 volts...
 
 
 

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Re: ALTERNATOR
« Reply #102 on: September 06, 2010, 04:48:10 am »
I thought a way for doing the pulse for the igbts very quickly
 
i´m winding an inductor with thre coils very well insulated from each other 200 turns per coil 0,27mm diameter wire if i remember well... this is just for the gatesss

thus one coil will be connected in parallel with the field coil on the irfp and the two secondaries will be connected to respective igbts to mke them switch with the frequency perfectly matched...
 
than i just need to rebuild the feed back coil and circuit and the lockin indicator (just a led and a transistor and a couple of diodes and resitors) i will not add an resonant scaning circuit, i don´t think is needed for now...
 
I will use a toroidal bifilar coil (the same 6mm2 wire) witch i already have here ready and will test with a 3 inch tube cell on filtered water....  about 1,5nf and 22mh abouty 27khz
 
 

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Re: ALTERNATOR
« Reply #103 on: September 06, 2010, 12:52:33 pm »
Sounds all like an experiment in progres to me... ;)