Emc - Philips Fortimo LEDFlex S Design-In Manual

EMC

Electromagnetic compatibility (EMC)
Electromagnetic compatibility (EMC) is the ability of a device or system to operate satisfactorily in its
electromagnetic environment without causing unacceptable interference in practical situations. In general, LED
modules have limited effect on the EMC of a luminaire. In some cases EMC needs to be improved.
How to... Improve EMC performance.
As mentioned before, the total amount of parasitic
current needs to be minimized. For that reason, the
following practical precautions need to be taken into
account in a lighting system to minimize EMC:
• Minimize the DM loop area of the lamp wires going
from the driver to the light source by keeping the wires
close together (bundling). This will minimize the
magnetic field and reduce the radiated EMC. Long
linear light sources are also part of that loop.
• Keep mains and control wires (DALI, 0-10 V) separated
from the output wires (do not bundle).
• Sometimes, radiated EMC compliance cannot be
achieved, necessitating the use of a 100 ... 300 Ω axial
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ferrite bead(s) for either mains or lamp wiring
(effective for interference between 30 MHz and 300
MHz), or coupling the wires through ferrite cores
within the luminaire may improve the overall EMC
performance. However, selection of the type and
characteristics of the additional filter depends on
what frequency components have to be damped and
by how much. Adhering to these rules will help in EMC
compliance. For further questions, please contact your
local Philips representative. Alternatively, the Philips
Lighting OEM Design-In team could be consulted for a
possible solution.
November 2021