--===============1834269300== Content-Type: text/plain; format=flowed; charset="gb2312"; reply-type=original Content-Transfer-Encoding: 7bit >Refer to the attached figure, (application for UC2843B in flyback converter >design), The ground they show there will be a purely circuit ground within the schematic as presented. DO NOT connect this to mains ground, as there will be a 'Big Bang (TM)' --===============1834269300== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --===============1834269300==--