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A.2 Electrical system structure
A.2.1 General figure of the electrical system structure
Figure A-3 Electrical system structure view
A.2.2 Principle
The hardware of the ventilator mainly consists of the power module, the main controlling
unit, the pneumatic control unit and screen control unit. the diagram is shown as above,
and the main function is described as following:
1. The power module, supply power for the boards, valves, sensors, heaters, fans etc.
The input of the power module is selected in two ways, one is the network power (AC
100~240V), and the other is from lithium battery.
2. The main controlling unit, provide the running platform for the operation system; it is
the center controlling unit and also the executive unit of the entire unit.
3. The airway controlling unit provides the drive and control for the valves and sensors,
controlling the pressure and flow of the airway.
4. The display controlling unit provides the display and touches function, and do the
coding of the encoder.
