1. Characterisation of electromagnetic interference from LED.
- Author
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Fayu Wan, Huixia Cao, Sushen An, Chaochao Feng, Guang Hu, and Junxiang Ge
- Subjects
- *
ALTERNATING currents , *LIGHT emitting diodes , *BAND gaps , *SEMICONDUCTOR diodes , *ELECTROMAGNETIC interference - Abstract
The electromagnetic interference (EMI) caused by alternating current driven LEDs which are widely used as indicator lamps in power strip is presented. The frequency-domain measurement results show that the EMI will violate the MIL-461E/RE102 standard limit line in the electromagnetic compatibility anechoic chamber. The timedomain measurement results show that the breakdown of LEDs suddenly increase the current causing the interference. The colour light of LED is determined by the energy bandgap of the semiconductor, as they may influence the EMI level, red and yellow LEDs are analysed. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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