Regeneration and the Toroidal Power Unit

[CTG Labs]

30mV/div 

Thats loaded down I take it?


D.

[dutchy1966]

Marco,

If I look at your video i see that you're using a toroid transformer? I'm not sure if that is gonna be any good for this. The toroid will trap all flux in the core and will probably not disturb the earths magnetic field at all!
Also what darren just said about the input power being measured properly is important before we jump to conclusions.
And last but not least I think its better to adjust your circuit to the way EM build it (with the PNP transistor)

Hope this helps!

Robert

[turbo]

30mV/div 

Thats loaded down I take it?


D.

yes offcourse it is!!

i have one scope only...

@dutchy

i will change the ferrite ring, but it did react when i placed a magnet nearby.
what form of core would function best in this setup?

i have many pieces of ferrite.

Marco.

[hartiberlin]

Hi EM,
great results, but can you please again let us know exactly,
how you measure the input power ?
Do you use any low pass filter to measure really a DC input current ?
Many thanks.

Regards, Stefan.

[dutchy1966]

30mV/div 

Thats loaded down I take it?


D.

yes offcourse it is!!

i have one scope only...

@dutchy

i will change the ferrite ring, but it did react when i placed a magnet nearby.
what form of core would function best in this setup?

i have many pieces of ferrite.

Marco.

I would just use a straight round piece ( a rod) and wind on there. Have a look on EM's picture you can see it there. It is Just tiny....
Try that first then you can still switch to PNP after (if you want).
Also before you put to much time in, scope the input power. Put a shunt in series and measure over it to determine the input current. Coz I don't trust EM's input power (yet), as Stefan said too.

Robert