Invention Grant
US08912741B2 Motor driver control method, motor driver control device, motor control device, and image forming apparatus
有权
电机驱动控制方法,电动机驱动控制装置,电动机控制装置和成像装置
- Patent Title: Motor driver control method, motor driver control device, motor control device, and image forming apparatus
- Patent Title (中): 电机驱动控制方法,电动机驱动控制装置,电动机控制装置和成像装置
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Application No.: US12796094Application Date: 2010-06-08
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Publication No.: US08912741B2Publication Date: 2014-12-16
- Inventor: Junko Wakabayashi , Masashi Tokuda
- Applicant: Junko Wakabayashi , Masashi Tokuda
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2009-138520 20090609
- Main IPC: H02P1/04
- IPC: H02P1/04 ; H02P27/08 ; H02P6/08

Abstract:
A disclosed motor driver control device is configured to control a plurality of switching devices that drive a motor. The motor driver control device includes a duty control unit configured to restrict a duty of a first pulse width modulation signal generated by comparing an oscillator signal generated at a predetermined cycle and a pulse generator signal so as to generate a second pulse width modulation signal, and a switching device control signal generator unit configured to include a logic circuit that operates the second pulse width modulation signal as a clock and configured to generate a switching device control signal controlling the plurality of switching devices based on the clock of the logic circuit of the switching device control signal generator unit.
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