Optical Probe for Oscilloscopes Measure brightness fluctuations of lighting systems

摘要

You may remember this story about the problems with LED lamps, which was published as an article Electromagnetic Interference from LED Lamps in Elektor's March & April 2018 edition. During my EMC measurements for this article I also checked the brightness variations of lamps with double mains frequency (100 Hz) and the switching frequency of their switching power supply.