A backup controller which is capable of suppressing an unintended operation performed by a motor which rotates in both of a normal rotation direction and a reverse rotation direction is provided. The control unit of the backup controller activates the second relay and the backup circuit in a case where a state in which the motor is rotating in the first direction even though the first relay is not activated is transmitted from the monitoring unit. Further, the control unit activates the first relay and the backup circuit in a case where a state in which the motor is rotating in the second direction even though the second relay is not activated is transmitted from the monitoring unit.

A control apparatus includes: a submersion signal acquisition unit that acquires a submersion signal representing a situation of submersion switch; a power supply unit that supplies power to a drive unit that drives an opening and closing unit such that the opening and closing unit is opened and closed using the supplied power; an operation detection unit that detects an operation instructing the drive unit to perform driving such that the opening and closing unit is opened; and a control unit that controls the supplying of power to the power supply unit performed by the power supply unit on a basis of the submersion signal and the operation.

A control apparatus includes: a submersion signal acquisition unit that acquires a submersion signal representing a situation of submersion switch; a power supply unit that supplies power to a drive unit that drives an opening and closing unit such that the opening and closing unit is opened and closed using the supplied power; an operation detection unit that detects an operation instructing the drive unit to perform driving such that the opening and closing unit is opened; and a control unit that controls the supplying of power to the power supply unit performed by the power supply unit on a basis of the submersion signal and the operation.

A drive control device include a processor and a memory including instructions that, when executed by the processor, cause the processor to perform operations. The operations include: comparing a rotation speed of a motor driven by a PWM control of a synchronous rectification type and a target value of the rotation speed and calculating an error speed; calculating a torque required in the motor based on the calculated error speed; calculating a drive voltage of the motor in the synchronous rectification type based on the calculated torque, the rotation speed of the motor, and an electrical specification of the motor; and setting a duty ratio of a PWM signal in the synchronous rectification type based on the calculated drive voltage.

Methods and systems include an actuator 40 adapted to provide drive power and hold power to an external device. A motor 34 provides for driving the external device to a determined position when the motor 34 is energized. A switching circuit is configured to energize the motor 34 with a high voltage to drive the external device to the determined position and energize the motor 34 with a low voltage to hold the external device in the determined position.

A motor driving apparatus includes: a switch having a first terminal that receives an external voltage, and a second terminal; a driving circuit coupled to the first terminal of the switch, and powered by the external voltage; a control circuit coupled to the second terminal of the switch; and a power circuit coupled across the switch, and outputting an internal voltage associated with the external voltage to power the control circuit to control the driving circuit to drive a motor of a power tool to rotate in a first direction when the switch operates in the ON state and to rotate in a second direction for a predetermined time period counting from each instance the switch transitions to the OFF state.

Provided is a swing door operator (110) for moving a door leaf (120) between a first position and a second position. The swing door operator (110) is arranged to operate in a powered and a powerless mode and comprises a permanent magnet DC motor (310). The motor (310) is arranged to move the door leaf (120) at least from the second position to the first position in the powered mode. The swing door operator (110) further comprises a mechanical drive unit (320), arranged to move the door leaf from the first position to the second position in the powerless mode. In the powerless mode, at least one resistive device is electrically connected in parallel with the motor (310) and arranged to limit a current generated by the motor (310) in response to the movement of the door leaf (120) from the first position to the second position by means of the mechanical drive unit (320). A method for controlling the swing door operator is also provided.

Various embodiments of a power wand are provided. The power wand may be utilized with an awning assembly including a motor to power and direct rotation of the motor. Therefore, the power wand will electrically drive and direct extension and retraction of the awning assembly. The power wand may be a portable hand-held device which provides battery powered operation of the awning motor. The use of the wand therefore eliminates the connection of awning wiring to the electrical system of the recreational vehicle (RV) or other mobile or fixed structure to which the awning may be mounted.

Various embodiments of a power wand are provided. The power wand may be utilized with an awning assembly including a motor to power and direct rotation of the motor. Therefore, the power wand will electrically drive and direct extension and retraction of the awning assembly. The power wand may be a portable hand-held device which provides battery powered operation of the awning motor. The use of the wand therefore eliminates the connection of awning wiring to the electrical system of the recreational vehicle (RV) or other mobile or fixed structure to which the awning may be mounted.

Systems, methods, and apparatus related to a homing mechanism within a drive mechanism of a lacing engine for an automated footwear platform are described. In an example, the homing apparatus can include an indexing wheel, a plurality of Geneva teeth and a stop tooth. The plurality of Geneva teeth can be distributed around a portion of a perimeter of the indexing wheel. Each Geneva tooth of the plurality of Geneva teeth can include side profiles conforming to a first side profile that generates a first force when engaged by an index tooth on a portion of the drive mechanism. The stop tooth can be located along the perimeter of the indexing wheel between two Geneva teeth. Additionally, the stop tooth can include side profiles conforming to a second side profile that generates a second force when engaged by the index tooth.