I purchased the RS-15-12 switcher.
https://www.trcelectronics.com/ecomm/pdf/rs15.pdf. The metal case looked
promising for keeping RF inside the unit. So far its quiet on HF. I have not
tuned from 6m to 23cm. The leads from the source/ps to the load and LED
light are 6 inches long at the moment. No noised noticed on HF with a cursory
tune up the bands. Next step is longer leads to the load.
This PS is to replace an internal noisy/small switcher in an outdoor the light
housing that currently takes 120v, with an external one with 12v leads running
to the housing. The internal switcher may be removed or simply bypassed.
7 3 Bob
N2SCJ
From: Bob Turner
Sent: Monday, December 14, 2020 12:41 PM
To: Rfi List <rfi@contesting.com>
Subject: RFI Emissions Standards for LED Drivers / Switching PS.
Today I noticed an EMI standard of EN55015 on a power supply. Does this
standard mean much? Are there others to look for when selecting a switching
power supply? I am using a doorbell transformer for some very low level LED
lighting, but it gets warm and if I had a higher current need it would be too
small.
This is one example of EMC Emission standards being claimed.
https://www.trcelectronics.com/ecomm/pdf/rs15.pdf. They list: EN55002
(CISPR32) Class B and a few other standards. Class B caught my eye, I think
that is what home computers need to be while servers, generally destined for
data centers can be class A. Are any standards worth paying attention to when
purchasing an LED Driver power supply?
7 3 Bob
N2SCJ
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