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Peter
I was just thinking about a capacitor discharge and drew out the equivalent
circuit ( an inductance, a resistance ( didn't add one for the capacitor)
and a capacitor. This is a tank circuit and most likely the only thing it
will produce is a exponentially decaying sinusoidal waveform. Yes low cost
BIG capacitors are available but check out their voltage rating. You
haven't lived until a capacitor blows up in your face.
Now if you thing CD has merit then I would like to see a design that I can
build that clearly deals with the turn off of the polarizing field. Also a
capacitor is a voltage device so when it is switched into the discharge path
(through the coil) its terminal voltage will be determined mostly by the
resistance of the coil thus limiting the current.
I was just thinking about a capacitor discharge and drew out the equivalent
circuit ( an inductance, a resistance ( didn't add one for the capacitor)
and a capacitor. This is a tank circuit and most likely the only thing it
will produce is a exponentially decaying sinusoidal waveform. Yes low cost
BIG capacitors are available but check out their voltage rating. You
haven't lived until a capacitor blows up in your face.
Now if you thing CD has merit then I would like to see a design that I can
build that clearly deals with the turn off of the polarizing field. Also a
capacitor is a voltage device so when it is switched into the discharge path
(through the coil) its terminal voltage will be determined mostly by the
resistance of the coil thus limiting the current.