Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 26, 2013
Patent Application Number
12705444
Date Filed
February 12, 2010
Patent Citations Received
Patent Primary Examiner
Patent abstract
Systems, methods and computer program products for reducing or removing current spikes generated during a current recirculation period associated with phase switching in a spindle motor are described. In some implementations, the duty cycle of the drive signals applied to the windings of the spindle motor can be adjusted to reduce or eliminate the current surge resulting from current recirculation. In some implementations, the duty cycle of the drive signals during spin-up can be reduced based on a current limit, and the reduced duty cycle can then be used to drive the spindle motor taking into account of current surges in the supply current.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.