220 Watt DC-DC Power Supply: DSATX

**zootjeff** · 09-22-2005, 12:10 AM

Originally Posted by cell21633

wait..does that mean all have been preordered already/

So far 5 out of 13 have been ordered. I've shipped out the three that I have for shipping. I'm building the 10 more this week. If everything goes well, I'll pool up 10 grand and build 100 of them. I still have to figure out the retail pricing. I don't want to de-value the market.

I also need to fab a case for it if I want to compete with Opus.

-Jeff

**zootjeff** · 09-22-2005, 12:16 AM

Originally Posted by parvo99

I live near Jeff, and picked up my PS the other day. He demonstrated it for me in his "lab" powering a p4 system, and it ran great. Shutdown controller worked perfectly. The serial port interface makes programing very simple. Hopefully I can get it installed soon so I can write a review.

Parvo,

I plugged mine into my car and drove around with the same system you saw. Everything worked just fine. One thing I noticed is that I only had a 2 second window set for the low votlage setting. Basically when I cranked my car for 3 seconds it would cause a shutdown. But then if it cranked for 1 or 2 seconds, it didn't cause a problem I re-programmed it back to 10 seconds and it wasn't a problem during cranking. (It wasn't browning out, the regulators can handle it no problem, it was just fooling the SDC.) If this becomes an issue, I'll load the new code for you.

-Jeff

**meddler** · 09-22-2005, 04:39 AM

i'm interested. email sent.

**lez** · 09-22-2005, 05:20 AM

emm, I see no heatsinks.

surely it must get hot?

**alti** · 09-22-2005, 06:54 AM

>95% efficiency

very nice

sent you an email

**greenman100** · 09-22-2005, 11:25 AM

Originally Posted by lez

emm, I see no heatsinks.

surely it must get hot?

There are several mosfets on the board, and I am sure circuit design shares the power across them. As an engineer, I am confident that this will do 220w, and probably a bit more, under continuous loading. I will get a review up soon.