mini-box M4-ATX-HV - Before You Start…; Introduction; M4-ATX-HV Logic Diagram

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M4-ATX-HV User Guide - 2 -
GND
+
Switch Logic
6-34V DC-DC
ATX PSU
PC
ATX power
Mother Board
ON/OFF switch
M4-
Battery
Ignition SW
-
+
USB
8bit MCU
Amplifier
Enable
Reverse and
forward protection
Status LED
Before you start…
P
lease take a moment and read this manual before you install the M4-ATX-HV in
your
vehicle. Often times, rushing into installing the unit can result in serious damage
to your M4-ATX-HV board, computer and probably your car’s electrical system.
Always double check the polarity of your wires with a voltmeter.
Avoid using the cigarette plug as a power source, often times the contacts are not
capable of delivering high current to your PC.
Introduction
Thank you for purchasing the M4-ATX-HV power sequencer / vehicle ATX power
supply.
The M4-ATX-HV was designed to work with a wide variety of main boards ranging
from low power to fully fledged Intel, AMD or VIA motherboards. This PSU has
been optimized to work in the high voltage range of 24-34V, offering a range of 6-
34V.
M4-ATX-HV Logic Diagram