Circuit setups for pulse motors

[ramset]

Gents  Im working on this anchor sleeve info  will have something hopefully monday late  as I am once again traveling   Chet

[capthook]

@ Carl - Thanks for the core dimensions you are using.  What is the material of the core?  An anchor bolt sleeve etc. ?     As far as the optical switch - you can get non-slotted devices that may make it easier to implement.  Timing/duty cycle can be adjusted more precisely as well. (and you don't get the noise clatter!)  Here is an example of a simple setup:  http://www.simplemotor.com/kit7.htm

Also - how are you controlling the cap dump >17V you mentioned?  I look forward to your pics!

@ Ramset - Thanks for the reply!  I look forward to what you find out!!

- - - -

Wrapped/tested more generator coils today.  Drill wound - I got the hang of it.(I was crazy wrapping those other ones by hand!).  Masking tape wrap between each layer.  Tested with small N/S rotor and through full-bridge.  All coils had:
Coil core: 3/8" x 3" anchor bolt sleeve. 2 wraps of masking tape to start.
Coil windings: 1" x 1"  - winding face flush with core. (thus 2" heel)  1 wrap electrical tape to finish.

1:  AWG #26  1 volt / 9 mA / 3 ohm res.

2:  AWG #30  4.5 volts / 25 mA / 20 ohm res.
Best results of any of the 10 coils I've wound so far - by HUGE amounts.  The greater # of turns in the same dimension coil must account for it.  But 4.5 times volts and 3 times the amps over the first coil? I like!

3:  Bifilar:  AWG #22/#26  .8 volt / 8 mA / 1 ohm res.
The bi-wrapped coil doesn't seem to offer any advantages as a generator coil.  Gonna stick with 1 wire.

Well - I've spent a couple weeks trying to maximize generator coil output.  Getting max power out is such a huge part of the equation IMO.

Out of wire - gonna order some.....
Next wraps will be fatter.  1" h x 1 1/2 " w.  1/4" core instead of 3/8".  I'll compare #26 and #30.  #22 and larger wire doesn't seem to be the way to go.  Not enough turns...

[hoptoad]

The only electronic parts other than the relays that I'm using are load limiting 5W 2 ohm resistors going to the charge batteries and of course the 10K uf 60V cap.
Hop this helps.
Carl

@casman
Hmmnnn........it's always the seemingly unexpected that keeps me hooked in these forums. A resistor, a capacitor, an inductive supply.......hmmn need some time to see what's constant here. Maybe good impedance matching with a dash of perfect timing harmony....? KneeDeep.

Casman, you seem to be achieving exceptionally good results regarding total charging capability. Do you have scope/s to measure with ? Just curious.
Also what is the duty cycle of the cap dump to battery (approx), and what is the main driving circuit duty cycle (approx)?
I'm asking, because it bears a great relevance to your measurents of current input to driver and current output to battery.?
If you are using a scope, you will be able to calculate much more precisely true current readings. Current is everything in a battery powered system.

If both duty cycles were the same, then with 500 ma output versus 250ma input at the same input and output voltages of say 12Volts, I would be shouting EUREKA I've done it. 

I'm all ears to what happens next..... KneeDeep 

By the way ALL, I never once in many years of research succeeded in achieving O/U and I have stated that a number of times. Whilst I'm glad to have helped you get this far in your search for O/U, it is obvious to me that from this point on, you are all the teachers and I am just a student.

I quoted the following statement on another thread and I'll repeat it again here. It's not my own, I just like it 

"If you always do what you've always done, then you'll always get what you've always had"

So to achieve O/U you obviously need to try something that I and many others haven't.    Good luck all 
Happy motoring pulsars..... KneeDeep 

[casman1969]

Mornin Hoptoad,

I will give you precise pulse lengths as best I can. Only have my single trace digital oscope and meters to work with...
I can tell you this for sure... 250ma is the constant draw from my drive coils (total).
The 500ma going to the batteries is doing so 2 times per 360 degrees of revolution. If I take out the load resistor my analog  5A  amp meter swings wildly and appears to be peaking at arround 3A.
Even though My hopes are up, don't get the wrong impression, This is NOT O/U at present but it is getting enticingly close. Let me try to get my camera to take shots of the scope. It supposedly will interface with my PC so that I can save this data. Clearly now is the time to do that. Be patient for these pics as I have'nt tried this yet.
I must thank this site and Gnosis for getting me to work on this project even though I started doing experimentation long before Mikes motor was all the buzz. You, and all who contribute have helped and I thank you.
I'm at work/play now so in between customers I'll get this setup for scope shots.
The thing is, I want to find a good machine shop arround here to fabricate, with my aluminum, a solid stand and a balanced wheel. I have two choices. First is a 4' diameter wheel and the second is my 7'.
This is proving to be the greatest challenge of all my work. Wish Paul Sprain would contact me as he seems to have some contacts that could help and lives fairly close by.
Will get those shots as soon as possible and post.

Carl

[casman1969]

Hey Hoptoad,

Here is a collage of shots that may help.
Starting from upper left, going right and then down.
shot accross drive coil 1
"           "                    2
Wheel setup
Pulses from Reed to battery
Voltage on cap from center tap of coils, not discharging
Relay number 1 10A @120V
Voltage on battery that was running these shots (must have let it drain for the past couple of days)
Cap 10,000 uf @ 50V, Max 65V
Batteries being used for testing.
I may hve shrunk these up a bit too much, let me know.
Any specific shots you may want, just let me know.

Any one particular shot I can post seperately for better clarity.

Carl