[hpsdr] Demeter: Some calculations

[Henry Vredegoor]

Hi Mike,

Like I mentioned already in some previous post:

I would like Demeter to cover a broader application:
Not just ATLAS powered HPSDR boards but the whole of a
receiver/transmitter/transceiver.

So a PSU for e.g. a small linear amplifier, a mini-ATX CPU board plus flat
panel display etc.
That's why I was calculating with higher 12 V power and all the voltages
present in a PC PSU.


73's,

Henry.

> -----Original Message-----
> From: Michael Ardai [mailto:n1ist at arrl.net] 
> Sent: maandag 2 juli 2007 16:52
> To: Henry Vredegoor
> Subject: Re: [hpsdr] Demeter: Some calculations
> Importance: High
> 
> 
> Here are some of the numbers I have collected from the list:
> 
> Penelope: Prototype draws 300mA of +5
> Mercury:  Prototype draws 500mA of +5 and 200mA of +12
> Janus/Ozy: Measured at 180mA of +5, 200mA of +12, 70mA of -12.
> 
> At this point, it looks like nobody is using the 3.3V rail
> or the -5V rail.
> 
> /mike
> 


 1183388560.0