For Class C harmonics testing(active input power <= 25 W), one requirement is as follows
" the third harmonic current, ...; moreover, the waveform of the input current shall be such that it begins to flow before or at 60 deg., has its last peak (if there are several peaks per half period) before or at 65 deg and does not stop flowing before 90 deg, where the zero crossing of the fundamental supply voltage is assumed to be at 0 deg" Does anyone who can explain what is the purpose of this requirement? And what is the meaning of stop flowing before 90 deg. thank you ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
