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http://forum.allaboutcircuits.com – I have modified a circuit that I posted previously. I am trying to use a 5vdc output from a controller (which is protected) to reverse polarity on a 110vdc load using a DPDT relay as an H-Bridge. Can you guys review it and tell me if it is okay? Specifically here are my questions: 1. My last thread was closed to a violation of TOS based on how the LED was connected. Does this new design correct that problem? 2. Do I need a diode across the coil? 3. How can I protect the relay? (my first one got ruined somehow but am not sure how, I want to make sure it doesnt happen again) The relay used (Embedded)