Sharing ideas on how to make a more efficent motor using Flyback (MODERATED)

[gotoluc]

Thanks Chris for letting me know how the same thing is going on your channel.

Luc

[gotoluc]

Please make that scopeshot while the wheel is spinning  and that means that you'll need to put some mechanical energy input into the wheel, because it will experience a braking action from the coil.
Yes

Here you go verpies,

the first scope shot is with a 2vdc input to the 0.3 Ohm, 2.39mH motor coil which rotates the 2 pole rotor at 55 RPM
the second scope shot is the first capture of the voltage across the coil when I disconnect the switch
and the third scope shot  is the first capture of the voltage and current across the 0.05 Ohm CSR  when I disconnect the switch.

I did not rig up a motor to the rotor but I had the rotor RPM at 55.5 so it was close enough and I got the shot from the first shorting but it would loose momentum fast and you may be able to see it.

Hope this is good enough as setting up a motor to this wheel is not an easy task.
Anyways, in the next few days I'll be building another prototype which the shaft and bearing to the rotor will be an excellent quality DC motor, so we can get all the performance data we would like to know.

Luc

[digitalindustry]

Okay, I see where you're going. I'll do the test for you. One scope shot of switch on, one open coil and one coil shorted through 0.05 Ohm CSR

Will that be all for today?

Luc

this made me laugh.

: D

how long before the 'doers' ignore that 'testers' ?

to me unless you have video of a device it's hard to call yourself a 'peer' (i include myself in that presently)

history shows that your paper qualification are worthless and that's what i think they are indeed.

it's good to get measurements and learn but better to experiment and make something work and then work backwards to learn, or simply build another device and see the different.

this makes me think this is why all the great innovations have been discovered by 'doers'

take Hendershot as a good example.

Luc it is just my (non peer) humble opinion, focus on symmetry and geometry in building just as much as 'ohms' 'volts' and 'currents' life is much more simple than the 'paperwork' guys make out.

It is my opinion that their aim is to tie you guys down in numbers and bullshit

think about this...

how much time would you spend arguing around the why of numbers with lot so these guys, as opposed to just building a whole new device with a variation on an original device that say didn't function as you expected.

my guess is at a point of tinkering you will see the simplicity in geometry, and this is all related to the reward of innovation

some people here what their aim to do is to tie you practical guys down in numbers, and take the reward of innovation away.

i.e it is their aim to try to make this shit boring and waste your time.

when it is clear, it is not boring you and Tinman (and others) are breaking new ground each day.

so just keep doing what you are doing, and hopefully more doers will participate.

[EMJunkie]

this made me laugh.

: D

how long before the 'doers' ignore that 'testers' ?

to me unless you have video of a device it's hard to call yourself a 'peer' (i include myself in that presently)

history shows that your paper qualification are worthless and that's what i think they are indeed.

it's good to get measurements and learn but better to experiment and make something work and then work backwards to learn, or simply build another device and see the different.

this makes me think this is why all the great innovations have been discovered by 'doers'

take Hendershot as a good example.

Luc it is just my (non peer) humble opinion, focus on symmetry and geometry in building just as much as 'ohms' 'volts' and 'currents' life is much more simple than the 'paperwork' guys make out.

It is my opinion that their aim is to tie you guys down in numbers and bullshit

think about this...

how much time would you spend arguing around the why of numbers with lot so these guys, as opposed to just building a whole new device with a variation on an original device that say didn't function as you expected.

my guess is at a point of tinkering you will see the simplicity in geometry, and this is all related to the reward of innovation

some people here what their aim to do is to tie you practical guys down in numbers, and take the reward of innovation away.

i.e it is their aim to try to make this shit boring and waste your time.

when it is clear, it is not boring you and Tinman (and others) are breaking new ground each day.

so just keep doing what you are doing, and hopefully more doers will participate.

I had a Giggle at this - It is so true.

Digital, you're so right!!!

Nice post!

   Chris Sykes
       hyiq.org

[Magluvin]

Here you go verpies,

the first scope shot is with a 2vdc input to the 0.3 Ohm, 2.39mH motor coil which rotates the 2 pole rotor at 55 RPM
the second scope shot is the first capture of the voltage across the coil when I disconnect the switch
and the third scope shot  is the first capture of the voltage and current across the 0.05 Ohm CSR  when I disconnect the switch.

I did not rig up a motor to the rotor but I had the rotor RPM at 55.5 so it was close enough and I got the shot from the first shorting but it would loose momentum fast and you may be able to see it.

Hope this is good enough as setting up a motor to this wheel is not an easy task.
Anyways, in the next few days I'll be building another prototype which the shaft and bearing to the rotor will be an excellent quality DC motor, so we can get all the performance data we would like to know.

Luc

I have seen this waveform before. But it was produced by turning the coil(with core) sideways. 

With the coil end facing the pole of the rotor mag, the mag first cuts the approaching side of the coil producing say a positive output of the coil, and when the mag passes tdc, its field cuts the departing side of the coil producing a negative out from the coil.

When the coil is turned sideways, the rotor magnet only cuts one side of the coil producing a mostly all positive, or negative output from the coil, depending on magnet polarity and direction.

Mags