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|1. (WO2018198749) ELECTRICALLY DRIVEN ACTUATOR|
|Title:||ELECTRICALLY DRIVEN ACTUATOR|
Provided is an electrically driven actuator comprising: a motor section 7 for rotationally driving a rotating operating shaft 3 through a speed reducer 8; and a rotational angle detection device 30 for detecting the rotational angle of the motor section 7. The rotational angle detection device 30 is configured to detect the magnetic fluxes of magnets 31, 32 which are magnetized with different magnetic poles, that is, S and N poles, in the rotational direction of the motor section 7, and which rotate with the output shaft 12 of the motor section 7. The reduction ratio of the speed reducer 8 is set to be smaller than 360º/θº, where θº represents the movable range of the rotating operating shaft 3.