08523803 is referenced by 31 patents and cites 280 patents.

Apparatus are provided for motor control systems and related medical devices. In one embodiment, a control system includes a motor having a rotor, a modulation module coupled to the motor, and a control module coupled to the motor and the modulation module. The modulation module generates a modulated voltage that is applied to the motor, and the control module adjusts a duty cycle of the modulated voltage to achieve a commanded rotation of the rotor and detects a degradation condition based on the duty cycle.

Title
Motor health monitoring and medical device incorporating same
Application Number
13/425190
Publication Number
8523803 (B1)
Application Date
March 20, 2012
Publication Date
September 3, 2013
Inventor
Jacques L Favreau
Pasadena
CA, US
Agent
Ingrassia Fisher & Lorenz P C
Assignee
Medtronic Minimed
CA, US
IPC
A61M 31/00
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