Portable controller with integral power source for mechanical circulation support systems

摘要

A portable external device for a mechanical circulation support system includes first and second power sources, e.g. batteries and control electronics for redundant uninterrupted operation of an implantable blood pump. The control and power source module may be configured to accommodate a variety of wearable configurations for patient convenience and comfort.

主权项

1. A method comprising:
determining an observer error for an observer that is used to control an electric motor according to a field-oriented control (FOC) algorithm while controlling the electric motor according to the FOC algorithm; and switching from using the FOC algorithm for controlling the electric motor to using a trapezoidal algorithm for controlling the electric motor based on the determined observer error.