[minima] Re: LPF with molded inductors
- From: "Tayloe, Dan (NSN - US/Tempe)" <dan.tayloe@xxxxxxx>
- To: "minima@xxxxxxxxxxxxx" <minima@xxxxxxxxxxxxx>
- Date: Tue, 4 Feb 2014 23:47:06 +0000
Molded inductors come in shielded and non-shielded versions. Molded inductors
are smaller, but I have always found them to be more expensive (>3x?) and lower
performance than the larger toroid cores.
- Dan
-----Original Message-----
From: minima-bounce@xxxxxxxxxxxxx [mailto:minima-bounce@xxxxxxxxxxxxx] On
Behalf Of ext Steve VK2SJA
Sent: Tuesday, February 04, 2014 4:39 PM
To: minima@xxxxxxxxxxxxx
Subject: [minima] Re: LPF with molded inductors
>
> Non-toroidal inductors do not have the closed magnetic field of toroidal
> ones. This could make them susceptible to external signal pickup
> and to unwanted coupling between inductors.
>
I wonder what the effect of trying to shield moulded inductors would be.
Say a small wrap of aluminium kitchen foil around them over/under some
heat-shrink. You might be able to cheaply negate the shielding/signal
pick-up problem. Still leaves the issue of lower Q.
Another experiment.
Other related posts:
