Q: Does this take a 12V input (like from a car), what's the minimum operating voltage, and what kind of connections does it come with?
A: Cars are nasty operating environments, so while you may use this power supply in a car, we do not recommend it as it will void your warranty. Read below for more information, including the timeline for the release of M1-ATX vehicle power supply.
Q) Can I use this DC-DC converter with a lead acid battery?
A) Lead acid batteries can produce 14.4V when fully charged.
Our DC-DC converter was designed for 12V operation, however, it will work
at 14.4V without any problems. You can also put 2 diodes in series with the
DC-DC converter to drop the voltage by 1.5V or so. Radio Shack sells them for
$0.5. Please read below for more info.
Q) What is the voltage operating range of the PW-60/70?
A) 10.5-15.5V. Below or above these voltages undervoltage/overvoltage protection will shut down the power. The boards cannot be damaged unless you apply more than 24V.
Q) How long will my mini-itx last from a lead-acid battery?
A) We tested a EPIA-800 board with a small 12V 7AH battery and we were
able to keep the system up for 10-12hous. With a regular car battery you
could power the system (without recharging) for about 1 week.
Q) Can I use this DC-DC converter in a car?
A) Cars can be nasty environments. If the voltage will be in between 12-14.8,
things will be fine. However, cars can produce anywhere from 5-18V,
especially when using a weak battery. Again, few diodes should drop
V(in) by 1-2 volts, but please make sure you have a good battery!
You can use the ITPS (power sequencer and regulator) to further regulate and control your computer power ON/OFF features in a car environment. Also, by end of 2004, we will have the M1-ATX, a DC-DC converter + power sequencer that operates from 6-30V while providing strict voltage regulation on all power rails!