oh man! i have a post missing from last night! it was a long one too! bugger!
anyway i will go over a bit of what i said, but first thing is! do not be fooled by your cheap digital meters when working with pulsed variable freq dc, they are not suited for this kind of thing and give all manner of false readouts that lead people to think they are getting more out than in! it is quite essential to get a couple of good quality analouge meters for volts and amps! Ive even seen the likes of Dr John bedini and Dr Peter linderman comment on the fact that even the high end flukes and the likes are not suitable for working in this field of research!
ok nix you asked about summing the output! you are summing it in a parallel connection so you wont see adding of voltages! that requires serial connection! So then in a parallel connection of two electrical sources you are summing the current -amperages! it is there and if you have everything set up correctly it should be passing to the motor and be pulled down! and the system bogs, something to do with adding two currents, the whole system gets pulled down to the lowest value of the two! the way you check this is quite technical and not just a case of chucking a meter at it, i cant remember it all but i will will se if i can find a vid on it
yes you are right about the dc output being different to the output of your power supplies, it is not a stable current, its all bumpy and variant in frequency! in a scope they dont look alike! next thing is it is full of back spikes of a high voltage coming from the collapse of the induced magnetic fields in the coils of the generator! BEMF! you can capture that BEMF by filtering it off! there is a way to show its existance by placing a neon lightbulb in the mix (they switch on at about 90volts) so the dc of the gen is all pulsey and ripply and thin, that is why it then needs further conditioning with circuitry! these little motors are fine for showing the principles of dc generation but they need modified to output a proper dc current and they are too little for that, if i set out to build a PMG i put togeather a system of many bifiliar coils and double that amount in magnets to give the smooth constant current, outputed as Ac and rectified to dc with a bridge, i set the magnets all north facing and the coils are usually star config!
the cap in my setup is there to smooth out a bit of the ripple and act as a little bit of a buffer, thats what i am showing in the previously posted diagrams! ripply bumpy current is fine for charging batteries, they dont care, batteries are selfish little shits and they only care about staying charged! by any means!
, the thought is that the electrochemical reaction in the batteries makes the bumpy currents stable or something like that!
you are not wasting your time at all here m8 as you are learning, what you are trying to do though does not work in this arrangement though or with these little motors! but it is fun and where you should start out learning, and yeah i do have a scope somewhere! an old one! will have to dig it out!
Megahurtz you are quite correct in your thoughts on the losses that have to be overcome for a system like this to work!
your question about sharing the magnetic field, well the way people are doing it is not by sharing the magnetic flux from two seperate devices like the dc motor driving the gen, they have did it by building motors that are a generator at the same time! highly efficient perminent magnet pulsed dc motors with efficient generator coils and charging/inverter systems built in, others do the conversion back and forth thing to get the generated power up to being the same as the input for looping back!
here is my setup vid ha ha
http://youtu.be/dw8E2kR8BLA