Lars Andersson wrote: > Also when driving highly inductive loads you want to start triggering at > voltage maximum and then inject a shower of pulses into the gate for maybe > 45 degrees. Otherwise the SCR/Triac main current might not have risen enough > at the end of the first trigger pulse to sustain conduction. If we try with > a 45 deg. long trigger pulse we might overload the gate so a burst of short > pulses is best. >
Just to clarify for the original poster: The device in question is a simple opto-triac. Pulse gating is not required. Just turn on the LED when you want the load to turn on, and turn it off when you want the load to turn off. Regards, John Kasunich ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
