Patent ID: 8466645
Filing Date: 2013-06-18
Classification: H02P

Abstract:
1. A motor control circuit comprising: a speed detecting section configured to detect a speed pulse having a frequency corresponding to a rotation speed of a motor; a generating section configured to generate torque command data based on the speed pulse detected by the speed detecting section; a motor driving control section configured to generate a PWM command signal based on the torque command data generated by the generating section to control driving of the motor; a first output section configured to output a first reference clock; and a second output section configured to output a second reference clock, wherein the generating section includes: wherein the speed error detecting section includes: wherein the speed error detecting section is configured to detect the speed error data based on the count value latched by the first latch circuit and set content by the first setting section, wherein the phase error detecting section includes: wherein the phase error detecting section is configured to detect the phase error data based on the count value latched by the second latch circuit and set content by the second setting section.