Mindray DC-25, Руководство по обслуживанию

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4-8 Hardware Principle
4.3 Power supply Module
14.8V
，
6600mAh
Power supply
Module
Power
management
FPGA
DC-DC power board
PWR_BTN_N
Main board
Control
panel
Status indicator
Temperature signal
CPU module
Power on/off control signal
Multifunction
FPGA
ARM control signal
I2C
PHV
AD DA
Power management
control & status signal
BF FPGA
PHV control signal
Battery status indicator
Control
signal
ARM
Battery
Battery
connecting
board
I2C
BAT+
Mains power input
System monitor
circuit
AC-DC
power
board
IO interface board
Isolation
transformer
HDD
Monitor
+5V/+12V/+3.3V
DVD-RW
+5V/+12V
+12V
+5V
+5V/+12V
Auxiliary
output
control
module
Auxiliary output
Fan status signal
Figure 4-9 Block Diagram of Power supply module
The power supply module structure of the system is described as follows:

The power supply module can be divided into 4 parts: AC-DC power board,
DC-DC power board, isolation transformer and battery module.

Auxiliary output is generated by mains power input, and powered on after
controlled by +12V on the DC-DC power board.

High-voltage programmable ARM and power management FPGA are on the
DC-DC power board.

Power output by the power supply module is transmitted to the main board, and
then it is output to the control panel and the monitor by the main board.

Battery is connected to the DC-DC power board via the battery connection
board.
4.3.1 Power Output of the Power supply module and
Supporting Function Distribution