公开(公告)号：US09584050B2

公开(公告)日：2017-02-28

申请号：US14654548

申请日：2013-12-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toshiki Tubouchi ,  Tomoya Hosokawa ,  Yasushi Kato

IPC: H02P6/04 ,  H02P6/16

CPC classification number: H02P6/16 ,  H02P6/153 ,  H02P6/17

Abstract: A motor drive device of the present invention includes a speed signal generator that generates a rotation speed signal indicating rotation speed; a PWM signal generator that acts on the power switch unit to control the power switch unit so as to generate coil-applied voltage; and a phase advance information generator that has characteristic curve information representing changes of rotation speed of and load on a brushless motor, preliminarily set. The phase advance information generator generates phase advance information according to the load characteristic curve to variably control the phase advance (the phase of voltage applied to the coils of the brushless motor, relative to the induced voltage phase) according to the load characteristic curve.

Abstract translation: 本发明的电动机驱动装置包括：速度信号发生器，其生成表示转速的转速信号; PWM信号发生器，其作用于功率开关单元以控制功率开关单元，以产生线圈施加电压; 以及预先设定的具有表示无刷电动机的转速和负载的变化的特性曲线信息的相位超前信息发生器。 相位提前信息发生器根据负载特性曲线产生相位提前信息，以根据负载特性曲线可变地控制相位提前（施加到无刷电动机的线圈的相位相对于感应电压相位）的相位。