Regeneration and the Toroidal Power Unit

[hartiberlin]

Hi Dave,
maybe this smoothing cap is very important.
Maybe it is also getting some spikes from the output into it,
so the realinput current is lower than in your scope shots...

As EMdevices did say, his input current was a flat line,
when he probably hooked his scope across the ampmeter
and the ampmeter also showed only DC input without fluctation,
then I would trust him, that it really
was smoothed out enough, so he really only had DC current flowing
into the circuit, as the 1000 uF cap smoothes out all spikes.

So, yes, please try it also with a big cap
and measure the current directly at your battery.

[CTG Labs]

Stefan,

Please see my last post post...


D.

[hartiberlin]

Well Stefan and all,

I have connected again the circuit with 1000uF cap across the suppy, in this case the current drawn seems more inline with that off the DMM readings, however still we can see 1amp spiked current peaks.


D.

Hi Dave, do you have a choke somewhere lying around ?
Try to connect: Battery plus pole -> ampmeter -> choke-> 10.000 uF cap to ground -> input to blocking osc circuit
and measure again the current draw.

Many thanks.

[hartiberlin]

Dave, the area of your input current spikes positive area are almost as big as the negative
going spikes, so I guess if you use a choke and a real good big el.cap at the input you
should really have a steady input DC current with no spikes on it and then
please compare again.

[hartiberlin]

Still better would be using 2 caps and the choke between it:

Battery plus pole -> ampmeter ->  10.000 uF cap to ground -> choke-> 10.000 uF cap to ground -> input to blocking osc circuit