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In Reply to: Funny Thing, Al, Those Diodes posted by Maxamillion on February 10, 2011 at 06:06:15:
with similar complaints. In theory, there should be no charge stored, and no reverse pulses to stimulate resonance. However, something else seems to be going on here.
The capacitors will still resonate with stray inductance in the rectifier circuit if given suitable stimulation. The diodes may not be the source of noise in the conventional way, but I wonder if they have other noise issues.
TI-Shield is interesting stuff. It provides magnetic as well as electrostatic shielding, and its structure will allow magnetic fields to generate eddy currents in the copper layers that will dissipate some energy. It supports slow waves and can resonate itself electrically.
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Follow Ups
- I've seen other reports about CREE Schottky rectifiers - Al Sekela 18:51:37 02/10/11 (0)