ToToTEK.COM

Yuan · Joined: 20 May 2004 Posts: 11

Guys, I'm sorry to write such a stupid question, but is there any digital way to make sure your USB port's 5V? How do I do it? Is in anywhere on the control panel? I don't recall having spotted its voltage anywhere on any diagnosis.

Again, guys, sorry to waste your forum's space on this; please feel free to erase this post as soon as I get answered.

Thanks!

Suppafly · Joined: 23 Jul 2003 Posts: 191 Location: Mexico

Or you could also use a USB port from a plystation 2! Those ports are 5 V Laughing

JohnDie · Joined: 12 Jul 2004 Posts: 28 Location: Germany

According to the official USB 1.1 specifications the voltage of a USB-port has to be in the range 4.4V (-12%) to 5.25V (+5%). So it could be a little more than 5V.
Question to the hardware developers: Can the ICs handle that little overvoltage? Or would it be better to include voltage regulators in the next revisions of the flasher hardware?

Note that this does not only apply to the MD-PRO, as all flash carts by Tototek use USB for power.

kyuusaku · Joined: 26 Jul 2003 Posts: 941 Location: .ma.us

I've found that lots of ICs work up to 6V.

rbudrick · Joined: 26 Mar 2004 Posts: 373

Many ICs have a pretty large range they can work with for power spikes and such.

-Rob

The Dumper · Joined: 05 Oct 2003 Posts: 49

Any consumer IC that handles 5V should be able to handle 5.25V and is probably spec'ed to do so. It's the 4.4V you might have trouble with. It won't blow anything up but it might not work at 4.4V.