Back to results
US 11,121,661 B2Granted
Minimizing transducer settling time
AssigneeCirrus Logic, Inc.
InventorsMarco Janko, Emmanuel Marchais, Carl Ståhl
Life of this patent
Estimating the term…
Abstract
A method for minimizing settling of a moving mass of an electromagnetic load may include determining a polarity and a magnitude of a velocity of the moving mass based on real time measurements of one or more parameters associated with the electromagnetic load and based on the polarity and the magnitude of the velocity, generating a braking signal to be applied to the moving mass that opposes the polarity of the velocity.
Claims22
A method for minimizing settling of a moving mass of an electromagnetic load, comprising:
- determining a polarity and a magnitude of a velocity of the moving mass based on real time measurements of one or more parameters associated with the electromagnetic load;
- and
- based on the polarity and the magnitude of the velocity, generating a braking signal to be applied to the moving mass that opposes the polarity of the velocity, wherein generating the braking signal comprises scaling a magnitude of the braking signal to a derivative with respect to time of the magnitude of the velocity at a time in which the magnitude of the velocity as a function of time is approximate to zero.
A system for minimizing settling of a moving mass of an electromagnetic load, comprising:
- one or more inputs for receiving real time measurements of one or more parameters associated with the electromagnetic load;
- and
- a processing subsystem configured to:
- determine a polarity and a magnitude of a velocity of the moving mass based on real time measurements of one or more parameters associated with the electromagnetic load;
- and
- based on the polarity and the magnitude of the velocity, generate a braking signal to be applied to the moving mass that opposes the polarity of the velocity, wherein generating the braking signal comprises scaling a magnitude of the braking signal to a derivative with respect to time of the magnitude of the velocity at a time in which the magnitude of the velocity as a function of time is approximate to zero.
3 more elements
Dependencies are inferred from the claim text.