Brent Brown wrote: > Putting two of any type diodes in parallel would add junction > capacitances and surely make for slower switching not faster. That makes no sense. Putting two diodes in parallel will add capacitance, but then again a diode rated for higher current will also have more capacitance. Even if the capacitance is higher, that still doesn't effect how fast the diode switches. In fact, higher capacitance will likely slow dV/dt, which would then allow the circuit to tolerate a slower diode switching time before bad things happen. Each diode will still switch into reverse mode in isolation. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .