NIBP Drive Unit (PCB-6851)
The NIBP drive unit connects to the PCB-6940 CPU board.
It mounts pressure pump, constant speed exhaust electromagnetic valve, quick exhaust
electromagnetic valve, and pressurizes / discharges by the CPU board control.
Block Diagram of the NIBP Drive Unit
Pump Drive Circuit
Constant Speed Exhaust
Valve Drive Circuit
Rapid Exhaust Valve Drive
Circuit
Constant Speed
Exhaust Valve Drive
Rapid Exhaust Valve
Drive
Pump
DC/DC
CPU
Board
NIBP Sensor Board
Control
Signal
Drive
Signal
Drive
Signal
Drive
Signal
Circuit Explanation of the NIBP Drive Unit
The air unit control circuit provides voltage by the PWM control, and operates each block.
Pressure Pump Drive Circuit
With the PWM control, changes the pump drive voltage according to the patient type.
Constant Speed Drive Circuit
With the PWM control, maintains a constant depressurization speed by controlling the valve
drive voltage.
Rapid Drive Circuit
Controls open / close of the valve with the logic signal.
9
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9
Summary of Contents for DS-7001
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