Hi there. I *really* think that you need to talk to your motor supplier and manufacturer. I suspect that the motor will run just fine from a bridge rectifier between it and the AC line. No filter cap needed. If the motor is a series-wound design (with field windings instead of permanent magnets), you might not even need the bridge rectifier. The rest of the circuit can use a capacitive power supply or one of ST's VIP series off-line power supplies. Why so much current for the PIC? dwayne At 05:27 PM 1/30/2008, Listas de Correo wrote: >Hello, > I'm trying to find a solution for a power supply. It will supply power to >an appliance, so it should be as inexpensive as possible. It will also have >to be as small as possible since the design department says I have no more >room to play with :) > > The requirements are: > >Vout1: 100Vdc 3A continuous and 10A peak (<5sec) to drive a DC motor >(unregulated) > >Vout2: 12~15V 15mA continuous to drive some mosfets > >Vout3: 5V 15mA for a PIC -- Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax www.trinity-electronics.com Custom Electronics Design and Manufacturing -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist