4 Units Description
4-
4.7 Power Supply Unit
4.7.1 Function and Components
The power supply unit provides the proper power for each module of the analyzer. It consists
of three PCB boards, four fans, power switch and plug receptacle.
The power system includes three circuit boards: 24V board, 12V board and power
connection board.
The 24V board transforms the AC power to the A24V, B24V and A12V the lamp
source).
The 12V board transforms the AC power to other 12V( B12V and C12V) and 5V
required by the system.
The power connection board has the function of relaying the AC power, transforming
the voltage to -12V, controlling the C12V and relaying the output of the other voltages.
The power supply unit provides all power through the joggles on the power connection
board, but the 24V board and the 12V board connect the power connection board
through the board to board plugs.
The power supply unit is an integrated module. It can be shielded and isolated by the
metallic crust.
The heat radiation of the system is implemented via the cooling air provided by fans.
4.7.2 Dismounting Power Supply Unit
The position of power supply unit is shown as Figure 4-43.
Figure 4-43 Position of Power Supply Unit
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