Help! blocking hf
Apr 2, 2002 at 6:26 PM Thread Starter Post #1 of 1

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Forgive my ignorance, I wonder if someone can help here?

I have been toying with the idea of experimenting with using a second voice coil in my planar transducer project to act as a
dynamic brake and control diaphragm excursion in the LF range.

I would prefer to have this braking effect only in the regions
that most need it.

In its basic form the brake coil would be loaded through a resistor
and offer a varying degree of damping throughout the frequency
spectrum.

My imagined solution would be a frequency dependent load that
would show a low resistance to low frequency
signals and a higher resistance[or block] to hf signals
The nature of this device would also need to be a passive one.

Anyway what I am really trying to look for with this approach is a 'passive' tuneable electromagnetic suspension .

Simple eh?
wink.gif
wink.gif


I have mentioned this in another thread[not asked about the filter
though] so thanks to those who have commented on this before.

Thanks

Setmenu
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