Mindray M9T User Manual

4-14 Product Principle
Connecting
board of trolley
power supply
Mgmt board of
trolley power
supply
AC-DC power
supply
Battery
A
Battery
B
J1
J1
J2
J1
J2
J3
J4
Fan
J5
J6
Indicator
signal
Power supply
and its status
indicator
J3
J2
J4
J3
AC OUT
Fan
power
supply
AC IN
AC IN
Relay
control
signal
EDC_19V
Power
supply and
signal of
battery A
Power
supply and
signal of
battery B
Figure 4-13 Diagram of related boards of trolley power supply
4.12.1 Connection Board of Trolley Power Supply
Main functions of connection board of trolley power supply:
 AC input transfer
 Auxiliary output control. Auxiliary output is enabled after starting main unit. Auxiliary output
disconnects when main unit is in standby or shuts down.
4.12.2 AC_DC Power Supply
AC_DC power supply implements power supply isolation and voltage transfer. It outputs 19 V DC
transferred from AC input. In terms of 150 W of main unit power and 50 W charging power, the
maximum power of AC_DC power supply is 200 W.
4.12.3 Management Board of Trolley Battery
The main functions of management board of trolley battery:
 Implements AC power supply and auto switch of battery supply. AC power supply has the
priority over others.
 Battery charge and battery management;
 AC status and battery status indication;
 Works with main unit system and recognizes the status of main unit system. Implements
auxiliary output control and low battery-consumption when the trolley is in standby.

Mindray M9T Specifications

General

Brand	Mindray
Model	M9T
Category	Medical Equipment
Language	English