Aisys
2-6 04/08 M1046983
2.2.3 Power
distribution
The Power Controller board provides outputs to the Anesthesia Control board and the
Display Connector board. These boards provide distribution of power supplies required
by the system.
The Anesthesia Control board interfaces with the Mixer board, the Ventilator Interface
board, and the Agent Delivery board through the Pan Connector board.
The Display Connector board interfaces with the Display Unit and the Module
assembly.
Figure 2-12 • Power distribution
Display
Connector
Board
High Performance Display Unit CPU Board
Current Limiter LCD3.3V
Fuse
BACKLIGHT 12.5V
AUDIO 5V
+5V Step Dwn
DIGITAL 3.3V
+3.3V Step Dwn
+12.5V
(switched
bus
voltage)
+22V
to
+31V
(battery
voltage)
Power Controller
Board
+12.5V
(switched bus
voltage)
AC
Mains
15W
24W
10W
53W
+3.3Vdc
+1.5Vdc
10W
+12V fan1
+12V fan2
Power
Supply
+6V
Ventilator
Interface Board
+5V EE
+5VA
+5V Vdd
-6V
42W
6W
O2 RICH - 10VA
Accessory Light
+12.5V (10VA)
Mixer Board
+3.3V CPU
4W
5W
Gas Selector Valves
Vent Vlvs/SCGO
+5V
Anesthesia Control Board
+12.5V (10VA Vent Interface Board)
+12.5V (10VA Module Power Supply)
10W
+12.5V (10VA Light Power)
+12.5V (10VA Vent Valves/ACGO/SCGO)
MGAS
-15V LDO
Module Power Supply Board
+6V Step Dwn
+15V LDO
+16V Boost
+5V LDO
+/-17V Flyback
+15 Vdd LDO
14.5W
+12.5V (10VA Mixer)
+12.5V (10VA Mixer Gas Select Valves)
+3.3V
+12.5V (switched bus voltage)
Pan
Connector
Board
Agent Delivery Board
+5V cc
ADC Ref 1
ADC Ref 2
+12.5V Agent Delivery Board
Agent Delivery (10VA prop valve)
Agent Delivery (10VA inflow and zero valves)
Agent Del (10VA outflow and scav valves)
Alt O2 Valve (10VA)
Gas Supply P Xducer (10VA)
ADC Ref
+5.5Vdc
+2.5V ADC ref
1.22V(10 bit ADC)
3.2V(12 bit ADC)
+12Vdc
Cassette
+12.5V (10VA External Expansion Periph 1)
+12.5V (10VA External Expansion Periph 2)
Pressure Transducer
Alt O2 Valve
AB.75.084
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