[SunRescue] Re: SunLX Power supply questions

[ChrisPowellChris_Powell at mitel.com]

On Thu, 12 Oct 2000 15:48:15 -0400 (EDT), nick at snowman.net wrote:

> Ok, this one has always gotten me with computer power supplies.  That
> input is rated at ~600 watts (6amps times 100volts rms).  That means it's
> output should be somewhere in the range of 300-500 watts (assuming a
> normal to terrible effic %).  Since as you mentioned that is a 70watt
> power supply, what gives?
> 	Nick

There is a mains *outlet* on the PSU of 4A (400W) so the power supply
itself has a maximum rated input power of ~200W (peak), a reasonable
margin above rated output power of 70-105W (not sure how efficient
Sun/Sony switching PSUs are, but about 70% I guess).

> On Thu, 12 Oct 2000, Mike Hebel wrote:
> 
> > Whew!  I had to take the power supply completely out but here is the data:
> > 
> > <POWER SUPPLY LABEL>
> > 
> > Input: 100 - 240V
> >         6A  47 - 63hz
> > 
> > Output: +5V  --- 9A (Max 10A)
> >         +12V --- 2A (Max 4.5A)
> >         -12V --- .1A
> > 
> > Outlet: 100 - 240V
> >         4A  47 - 63hz
> > 
> > Total Max Continuous:     70.2W
> > Total Max Output < 15sec: 105.2W
> > 
> > </POWER SUPPLY LABEL>
> > 
> > The service manual covers Classic/LX and also says 70W for the power supply
> > rating.