In SX Microcontrollers, SX/B Compiler and SX-Key Tool, william wrote: The D1 zener is required because in an event D2 fails, the snubber (with D1) would take over D2's job of preventing all the 16v capacitors from exploding. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=304658#m305707 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)