On 21 March 2012 13:07, Wouter van Ooijen wrote: > On 21/3/2012 1:50 PM, A. Sergio Sena wrote: > > How about a P-MOSFET ? > > One or a couple to avoid reverse currents. > > > > I use this approach often when i need "almost" zero drop. The drop is > > given by the Rds and Current through the MOSFET. > > Can you give a diagram? See also "ideal diode" such as http://www.linear.com/product/LTC4413 and related products. -- Dave Tweed --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .