Power Supply :
LM350 High Current Power Supply 4.5-25V 10A

Source article:

This is straight from a National Semiconductor data sheet, will supply a variable voltage (1.2V - 25V and up to 10A) I will assume you obviously have available a source of D.C. voltage (filtered) @ 10A.

Here is the broad schematic BUT you will have to consult the LM350K data sheet AND applicaion notes.

Now if you are competent to build a 4.5V to 25V variable power supply capable of supplying 10 amps then the above information is all you need. On the other hand if the above leaves more questions than were answered then obviously you need more experience. The little schematic above, as a project, would run into hundreds of dollars to build. For experience, try the smaller project in the next section. It’s a useful tool.

Read More Source:
http://my.integritynet.com.au/purdic/power3.htm

Thank you.