Rotation-angle detecting device capable of detecting absolute angle with simple configuration

摘要

A rotation-angle detecting device includes a rotor, a first output mechanism for outputting a first detection signal in reponse to the rotation of the rotor, and a second output mechanism for outputting a second detection signal in response to the rotation of the rotor. The first output mechanism includes a first output gear (6) meshed with a first transmission gear (3a) of the rotor and having an axis in parallel with the axis of the rotor, and a first output section for outputting the first detection signal in response to the rotation of the first output gear. The second output mechanism includes a second output gear (7) meshed with a second transmission gear (3b) of the rotor and having an axis in parallel with the axis of the rotor, and a second output section for outputting the second detection signal in response to the rotation of the second output gear.