Motor driving circuit

Details Motor driving circuit Motor driving circuit

2011-04-05

2011-04-05

Benson, Walter (Department: 2837)

Electricity: motive power systems

Motor load, armature current or force control during...

C318S400060

Reexamination Certificate

active

07919944

ABSTRACT:
A motor driving circuit for controlling a current amount flowing through a motor coil includes: a comparator configured to output a comparison signal indicating a comparison result between a set current amount and a current amount based on an inputted set current signal according to the set current amount and a current signal according to the current amount flowing through the motor coil; a current control signal update circuit configured to update a current control signal for controlling the current amount flowing through the motor coil in a stepwise manner so that the current amount flowing through the motor coil is changed to the set current amount in a stepwise manner, based on the comparison signal outputted from the comparator; and a driving circuit configured to drive the motor coil based on the current control signal outputted from the current control signal update circuit.

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patent: 6424600 (2002-07-01), Okeya et al.
patent: 2007/0024228 (2007-02-01), Fujinaka
patent: 07184396 (1995-07-01), None
patent: 2000116163 (2000-04-01), None
patent: 2006-227101 (2006-08-01), None

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