Hardware
1.2 Power Supply
The CPU board is powered by two independent external power supplies, a +5V
supply and a 12V supply. Two 5A fuses are respectively installed on the two
power entries. The +5V supply is converted a +3.3V supply to power the digital
components and the +3.3V supply is also further converted into a +1.5V supply
to power the FPGA. The +12.8V supply serves the CPU board only.
Figure 1-2 Power distribution of the CPU board
BC-2800 Auto Hematology Analyzer (V1.0) 1- 3
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