David Van Horn wrote:
> Now I'm told that to find the "best" values, I should take these values a=
nd
> calculate Sqrt (LC) and use that value for the inductor and capacitor.
>=20
> When I pull the Sqrt of (L*C) the result is in time. 159nS in this case.
> I start to feel like we're doing something sketchy here, but I plug in 15=
9uH
> and 159pF and I get another resonant pair at 1MHz with ZL or Zc =3D 1k.
>=20
> Running a couple of different examples, it seems I always end up with 1k
> Impedances.
>=20
> Is this wierd trick legit?

No.

The "wierd trick" is simply based on the fact that you chose an L value tha=
t
is 1,000,000 times larger than the C value. The square root of that ratio i=
s
1000.

If you had instead *followed instructions* and used 159 nH and 159 nF, you
would have gotten impedances of 1 ohm for both.

And if you keep going, 159 pH and 159 uF gives you 0.001 ohms.

There is no "best" set of values, except as determined by other constraints
such as manufacturability.

-- Dave Tweed
--=20
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