- #1
jkCSE
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Sorry for wordiness, the power problem is probably simple...
Im a CSE student working on a team trying to create an IBM 704 emulator. It's a big headache, but all that aside, one of our components is a Vortex86 pc104 compatible single board computer (http://www.icop.com.tw/products_detail.asp?ProductID=138)
with five 48-pin digital I/O modules connected by pc104 ISA bus.
(http://www.icop.com.tw/products_detail.asp?ProductID=46)
There will be 180 LEDs that are 3.3V @ 10mA and 60 switches and buttons that will be connected to the I/O modules.
Anyway they recommend a 5V @ 2.0A power supply for the Vortex board. The Vortex board draws 5V @ 1.1A and each I/O module draws 5V @ 600mA. The power flows through the Vortex board to the I/O modules. We were told there would be a problem with five I/O modules because of the lack of power problem (5 x 600mA + 1.1A). We do have a pc power supply with a 5V @ 2.0A wire we were going to use.
1. How much current can we send to the Vortex board? We have a 5V @ 20A that would supply enough current, but I'm guessing that would burn the board maybe, I don't know.
2. If just 2.0A power was connected but the LEDs weren't all on at the same time and I/O boards didn't draw current at the same time, would that work?
Another option was to power each board separately by not connecting the power pin on the ISA slots, but we would much rather do one of the previous two options. Basically, I'm completely lost with all the power problems... I just don't want to harm the equipment.
They didn't give us any electrical engineers in this team, but if I use any suggestions from this site I will list it as a resource. I will try to contact the individual responder first.
Thanks,
UTA Student
Im a CSE student working on a team trying to create an IBM 704 emulator. It's a big headache, but all that aside, one of our components is a Vortex86 pc104 compatible single board computer (http://www.icop.com.tw/products_detail.asp?ProductID=138)
with five 48-pin digital I/O modules connected by pc104 ISA bus.
(http://www.icop.com.tw/products_detail.asp?ProductID=46)
There will be 180 LEDs that are 3.3V @ 10mA and 60 switches and buttons that will be connected to the I/O modules.
Anyway they recommend a 5V @ 2.0A power supply for the Vortex board. The Vortex board draws 5V @ 1.1A and each I/O module draws 5V @ 600mA. The power flows through the Vortex board to the I/O modules. We were told there would be a problem with five I/O modules because of the lack of power problem (5 x 600mA + 1.1A). We do have a pc power supply with a 5V @ 2.0A wire we were going to use.
1. How much current can we send to the Vortex board? We have a 5V @ 20A that would supply enough current, but I'm guessing that would burn the board maybe, I don't know.
2. If just 2.0A power was connected but the LEDs weren't all on at the same time and I/O boards didn't draw current at the same time, would that work?
Another option was to power each board separately by not connecting the power pin on the ISA slots, but we would much rather do one of the previous two options. Basically, I'm completely lost with all the power problems... I just don't want to harm the equipment.
They didn't give us any electrical engineers in this team, but if I use any suggestions from this site I will list it as a resource. I will try to contact the individual responder first.
Thanks,
UTA Student