Muller Dynamo

[konehead]

Hi Scratchrobot

yes its very simple:
gates to gates
sources to sources 
drains to drains I really dont think you need a drawing for it eh

mosfets like to be paralelled they dont mind however if you get up to say 10 in paralell there might be some delicate timing issues occuring so maybe dont do that many...

For "bidirectional" circuit to hookup mosfets so they will switch AC:

- think now of say 5 mofets in paralell as jsut one big mosfet OK?

and now its gate to gate
and still source to souce, 
but NOT drain to drain anymore, - leave the drain leads "open"

and now the switching of the load occurs between drain of  mosfet A, (or "cluster of 5 paralell mosfets "A")
and drain of mosfet B, (or cluste of 5 paralell mosfets "B")

[penno64]

Hi Scratch,

Great video,

Want to tell us how you connected the neon and other components.

Regards, Penno

[FreeEnergyInfo]

ЭлекÑ,ричесÑ,во_Калашников_2003 http://depositfiles.com/files/ale4lkelo

[scratchrobot]

Hi Scratch,

Great video,

Want to tell us how you connected the neon and other components.

Regards, Penno

Hi Penno, I just used one coilpair and made a Bedini circuit with them, I used air core, when I use iron as core it gets very hot and burn my coil so I will make another coil with better wire to test again.

[i_ron]

Here is a mosfet circuit using a H11D1 opto-isolator and 4422 driver that I am testing out now. The IRFP460 mosfet is rated at 20A and 500V and it has .3 ohms resistance.
So far this circuit works great switching motor coils.
Put 5 of these mosfets in a paralell cluster and it would work well switch-shorting coils at peaks since then the resistance would be really low...
Also put another cluster of 5 in paralell and then hook together the clusters of 5's gates and source leads so that switching then occurs between the "leftover" drain leads; ("bidirectional"mosfet hookup) and now it will switch AC and this is a very good coil-shorting circuit.

Doug,

This is not an opto-isolator circuit as the same supply feeds all three components. All you are doing is using the opto as an invertor for the Hall.  That is five extra components when a TC4421 would do the same thing with five less parts. (and with no opto loss)

Ron

Edit: R1 can be 20 ohms, R2 can be 6K8, battery can be 12 volts.

Breaking the connection between the 4421 and L1 can then have the hall and 4421 on 12 volts with L1 and FET on 24 volts or higher...