Hello, thanks Bob et all for your kind comments and sugestions. I'll make some more tests when on the facility and tell my report to you. Now, returning to the original topic... someone knows how to calculate a snubber? Best regards, Brusque -- --------------------------------------------------------------------- Edson Brusque C.I.Tronics Lighting Designers Ltda Research and Development Joinville - SC - Brazil http://www.ryan.com.br/netiqueta.htm www.citronics.com.br --------------------------------------------------------------------- -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist