Abstract: A motor drive controlling apparatus includes a controller that generates a drive control signal in response to input of a speed command signal and a motor driver that generates a drive signal in response to input of the drive control signal and outputs the drive signal to a motor, and the controller repeatedly generates the drive control signal in a period during which the speed command signal is inputted and stops generating the drive control signal in a period during which the speed command signal is not inputted to repeat an operation period in which the motor performs rotational operation and a stop period in which the motor stops operating in a non-excited state.

Abstract: A drive apparatus according to an embodiment includes a first rotation unit, a base, a lead screw unit, and a second rotation unit. The first rotation unit includes a gear rotatable in first directions by a drive power source. The base is joined to the gear and is rotatable in the first directions with the gear. The lead screw unit is provided to the base and moves a shaft back and forth in a certain direction. The second rotation unit is pivotally supported by the base, rotates in second directions different from the first directions, and supports a certain supported member rotatably in the second directions.

Abstract: A dual rotating axial fan includes a first axial fan element having a first motor that rotates a first impeller, a second axial fan element having a second motor that rotates a second impeller, and a clamping element coupling the first axial fan element to the second axial fan element in series so that the first axial fan element or the clamping element can move relative to the second axial fan element.

Abstract: An angle adjuster is configured by disposing a first driver for driving a horizontal rotation frame (horizontal direction rotator) to rotate in the horizontal direction and a second driver for driving a vertical rotation frame (vertical direction rotator) to rotate in the vertical direction on the horizontal rotation frame. This configuration can reduce the size of the angle adjuster and a lighting apparatus with the angle adjuster.

Abstract: A pressure sensor includes a sensor member including a sensor face to which pressure is imparted and a cover member that covers at least part of the peripheral face of the sensor member while exposing the sensor face out of one end side. With such a configuration, the sensor member can be protected from a lateral force (side pressure), whereby the sensor member can be prevented from being broken by the application of the side pressure to the sensor member.