4-2 Product Principle
TRA FPGA is the FPGA which controls the transmission and the receiving.
65-128 transmitting/receiving channels.
Control interfaces related to probes.
4D&TEE functional circuit implements functions of 4D drive circuit and TEE
temperature measure, etc.
Power supply management (EC) implements functions of the power supply
management and control of starting/shutting down the main unit.
System monitoring (SM) implements the power supply monitoring and fan monitoring
of main system.
TR64 board: 1-64 transmitting/receiving channels.
Probe board connects the main unit with the probe.
PHV power supply board produces the programmed high-voltage needed in the
transmission.
COME module, also named as PC module, runs at Doppler platform.
As a main display unit, LCD module displays the image and inducts the environment
brightness.
ECG board offers ECG and respiratory signal acquisition and achieves the triggering
function with main unit.
4.2 Main Board
Main board includes: power supply, back-end and front-end.
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