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...
