[GreenKeys] LTSpice

[Jeffrey D Angus]

On 7/19/2013 11:00 AM, Ralph Mowery wrote:
> What hapens when you plug in the values of .1 uf and 470 ohms ?
> That is what Hoff used in his design from about 40 years ago.
> That is for a loop voltage of around 150 volts and 60 ma. 
It depends on a lot of things. including the actual inductance of
the selector magnet. These two charts were based on 2 Henries.
Then only changing the capacitor from a 0.1 uF to a 0.47 uF.

You can see the difference in the amount of overshoot and ringing.

You may need an .xpf document viewer to see these files.

Jeff-1.0
wa6fwi



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