Interaction of some low power LED lamps within 2–150 kHz (supraharmonics)

Disturbances interaction at supraharmonic range between some low-power LED lamps in single and simultaneous operation are described through this article using measurements and simulations. Cases are carried out measuring and simulating typical LED circuits without any Power Factor Corrector stage. The corresponding DC-DC converters and other circuits are simulated in LTSpice® and PSpice® using typical values found in market-available lamps. From measurements and simulations it can be seen that even same technology devices (i.e. low-power LED lamps) can behave as disturbance emitters or receivers. This qualitative study is a step forward to understand the disturbances in the range 2–150 kHz at low voltage based on power electronics circuits.