Minebea Company, Limited

Yoshiki Sakamoto

Yuzuru Suzuki

Wataru Nogamida

Yuuki Takahashi

A VR resolverand an MR sensorare mounted to a shaftThe VR resolverand the MR sensorare formed so as to have a shaft angle multiplier of not less than 2. The difference of the shaft angle multiplier between the VR resolverand the MR sensoris made to be 1. An absolute angle of the shaftis calculated based on a difference between an angle calculated from an output of the VR resolverand an angle calculated from an output of the MR sensorSince the VR resolverand the MR sensorhave a different failure mode, redundancy against failure is reliably obtained.

Angle detecting device

A fan apparatus is provided and includes: a housing having a hollow cylindrical shape; a circuit board holding structure which is disposed in the housing so as to be located at the radially central part of the housing and which includes a plurality of slits extending axially; a circuit board disposed inside the circuit board holding structure in parallel with the axial direction; a plurality of fixed blades disposed so as to bridge between the housing and the circuit board holding structure; and a motor which includes a rotary shaft and an impeller and which is disposed at the front end of the circuit board holding structure, wherein the impeller is connected to the rotary shaft so as to move air.

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Kitasaku-gun, Japan

Yoshiki Sakamoto