At 05:42 PM 3/22/2013, you wrote: >Have a PLC that is driving out a 24VDC PWM signal for a fan drive,=20 >max drive is 1A, but they need to drive 20A (yep...20A for a=20 >fan). Well thats what they spec, so..... > >Just thinking that a FET driver to a FET that can handle the=20 >current? That simple or what am I missing.... Pretty much that simple, but real care has to be taken as to layout..=20 100nH of stray inductance with 100nsec switching means 20V.. enough to kill the gate drive= r. --sp =20 --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .