Title:
モータ駆動回路
Document Type and Number:
Japanese Patent JP5256413
Kind Code:
B2
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.
Inventors:
Takaaki Ishii
Takashi Tsukagoshi
Ryo Suzuki
Takashi Tsukagoshi
Ryo Suzuki
Application Number:
JP2007222428A
Publication Date:
August 07, 2013
Filing Date:
August 29, 2007
Export Citation:
Assignee:
Semiconductor Components Industries Limited Liability Company
International Classes:
H02P25/06; G02B7/04; G02B7/09; G03B30/00; H02P7/025
Domestic Patent References:
| JP2006227101A | ||||
| JP7006528A | ||||
| JP8312715A | ||||
| JP3079106A |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation