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Figure 3-13 Power supply PCBA
Power Supply Functional Description
AC Input Module
Filters unwanted signals radiated and conducted from inside the
monitor’s housing.
AC Input Rectifier and Filter
Rectifies and filters 115 or 230 VAC input into 190 to 380 VDC for the
primary side of the DC-to-DC converter.
EMI Filter - bridge rectifier
DC/DC converter
AC input
battery charger
#1
battery charger
#2
battery charger
#3
not used
main DC input
source voltage
+5 V
DC\DC
converter
±
12 V
DC/DC
converter
+5 -12 +12
analog out
analog out
analog out
-12, +12, +5
-12, +12, +5
-12, +12, +5
clock
clock
clock
data
data
data
(not used)
to battery
not used
