Bedini dc motor hybrid

[jonnydavro]

Hi.Here is the circuit diagram for the 2 stage Dc Bedini Hybrid in the video in the previous post.
Regards jonnydavro

[Thaelin]

   I was looking for a gen head some time back and wondered as to the
use of a car alternator. I went to the rebuild shop and talked to the guy
there. He told me that you have to have 1500rpm for the unit to start doing
anything worth while. Full out put takes 5 amps input and about 4 to 5 HP
to turn it. A very lossy system.
   You may want to look into low speed wind gen heads as an alternative.
They will put out good power at around 500 rpm. Just pay attention to the
problem of cogging. A 9 coil 12 mag setup may well deliver what you need.
This paired up to a Bedini motor may well fly. I have not got that far yet. Just
let the motor wind up and then turn on the output of the gen head and then
adjust the base resistance to keep it there. Make sure to use fast recovery
diodes in the three phase diode set..

thaelin

[freepenguin]

Hi.I have had another look at my DC Bedini hybrid motor and updated it slightly resulting in very low current consumption and extended duty cycle at no expense to the battery.I now route only the bemf through the DC motor.This motor now runs using 3.5mA @12v.It will run on a lot less voltage as i have also run it with my joule thief and cap combo.
Here is a video and updated circuit.
                                                  Regards Jonnydavro

http://www.youtube.com/watch?v=P6Jc8mv6xeg

I saw your two videos on Youtube.
Your project looks promising to me.
The bigger one looks really cool. How long it would run?
The simple answer of OU is the running time of the Bedini sysem. Any given battery has measured drain period.

I have three questions about your schematic.
The first one is:
R2 is a 100 Ohm resister or capacitor?
1K and 20K resisters are both variable ones?
Those two resisters have arrow.

Secondly, what's the strength of magnet on your Bedini system? The spec on datasheet.
I know the size of wires and strength of magenet determines the voltage from the coil when the magenetic field collapses.

I've looked three different Bedini systems including the hand drawing one by John Bedini. All of them skipped the specification of magnet being used.

The last question.
I think I need to have an ammeter that measures upto mA so that I can check the current on the circuit while in operation. What type of ammeter do you recommend?

Checked few electrical parts suppliers. Only one place sells AWG26 and AWG22 wires but 610 meter roller.  It will take some time for me to get all the parts ready before starting to build.

[jonnydavro]

Hi Freepenguin.The Big one was running off a dc adapter as i did not have 3 good car batteries.
Regarding the circuit.R2 is a resistor and the 1k and 20k are both variable resistors.I use 2 for tuning.
The magnets are 20mm x 5mm neodymium rods grade N38.
An ampmeter is important but i would not spend a great deal off money on one yet.Buy a cheap one first and that will give you a rough idea off whats going on and maybe get a better one later which reads TRMS values.
Another thought.As you are struggling to find materials,have you thought about building a Bedini Fan.This is a great project to start with and you will get results quick and you may have most off the parts lying about in an old pc power supply.
I wish you well with your experiments and keep us informed off your results.
                                                                                        Regards jonnydavro

[jonnydavro]

Hi.I did a test using this motor to run a generator in october 2008 with some interesting results.The motor was running off a 36v adapter and was spinning an identical 24v scooter motor as a generator which was charging a 12v car battery.The interesting thing about this motor is the current draw does not increase under load.I thought the video off this test was lost but i have recovered it from a dead hard drive which i will now put to good use..Here it is.
http://www.youtube.com/watch?v=wg8B5bzrn2U

Regarding the use off car alternators as generators,Thaelin gives good advice.PMA alternators are the ones to use but they are expensive but much more efficient as gens.
Another alternative would be stepper motors.Here a link with some good imformation on steppers.
http://www.reuk.co.uk/Electricity-with-Stepper-Motors.htm
                                                                     Regards jonnydavro