At the same time, requirements to artificial heart motor driven system are further enhanced, such as the use of no sensor EMF control, cyclical changes in the electrical rotational speed for pulsate origin, and so on.

• 与此同时，对人工心脏电机驱动系统的要求也进一步提高，如采用无传感器反电势控制驱动，通过周期性改变电机转速产生搏动血流等等。