Re: Building computer - power supplies
On Sat, 2013-09-28 at 19:15 -0500, Stan Hoeppner wrote:
> However, another cost saving aspect to this I didn't mention
> previously is component commonality. If a vendor sizes it PSUs
> optimally, most if not every PSU in the line can use the same
> regulator FETs. For instance, a 25A regulator can be used for a
> single 12V rail for any PSU up to about 400W. For PSUs between
> ~400-700W there will be two 25A rails with two regulators. For PSUs
> above ~700W there would be three 25A rails, and so on. Since the same
> regulator is used in all models, this regulator can be acquired in
> much larger volume with a greater discount per unit.
This explanation is more to my taste ;).
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