Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Atsushi Kanamori0
Date of Patent
March 29, 2011
0Patent Application Number
119026690
Date Filed
September 25, 2007
0Patent Citations Received
Patent Primary Examiner
Patent abstract
If a PWM duty instruction D1 determined by a duty calculation circuit exceeds an upper limit value, a duty signal processing circuit in a motor drive apparatus divides a switching current supply period in each of the phases into a first current supply period and a second current supply period. In the first current supply period, the duty is set to the upper limit value. In the second current supply period, the duty is set to 100%, and the length of the second current supply period is set depending upon the duty instruction.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
