Motor control device and motor drive device

专利名称：Motor control device and motor drive device发明人：Hisaaki Watanabe申请号：US14436034申请日：20121026公开号：US10038396B2公开日：20180731

专利附图：

摘要：A sampling period of information according to a load state of an alternating-current motor is controlled so as to be variable with respect to a carrier period of a PWMcircuit, and a predetermined arithmetic operation for aggregating information sampled inone period of the carrier period is performed in a separate arithmetic circuit from a CPU.

Thereby, in a situation where the rotation of the alternating-current motor becomes toofast with respect to the carrier period, motor rotation control for suppressing a suddenfluctuation of a motor load can be performed by faster reaction while suppressing anincrease in an arithmetic control load of a CPU.

申请人：Renesas Electronics Corporation

地址：Kawasaki-shi JP

国籍：JP

代理机构：McGinn IP Law Group, PLLC

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