A system includes a remote electronic tilt phase shifter module, a motor, a mechanical linkage that connects the motor to the remote electronic tilt phase shifter module, a current management circuit that generates a motor control signal responsive to a current control signal, and a driver circuit that is configured to selectively connect the motor to a power supply in response to the motor control signal.

An image recording apparatus having a recorder, a first driving device, a second driving device, a driving-force transmission device, a sensor, a memory, and a controller to conduct a conveying process and a recording process alternately and repetitively, is provided. In the conveying process, on condition that a rotationally driven amount of the first driving device exceeded a target rotation amount, the controller conducts feedback control on the first driving device to rotate reversely. On condition that the first driving device was rotationally driven reversely under the feedback control, the controller stores a maximum value and a stopping value in the memory, determines a correction value, and determines a post-correction rotation amount based on the target rotation amount and an amount corresponding to the correction value, and in the conveying process, the controller drives the first driving device rotationally by the post-correction rotation amount.

An image recording apparatus having a recorder, a first driving device, a second driving device, a driving-force transmission device, a sensor, a memory, and a controller to conduct a conveying process and a recording process alternately and repetitively, is provided. In the conveying process, on condition that a rotationally driven amount of the first driving device exceeded a target rotation amount, the controller conducts feedback control on the first driving device to rotate reversely. On condition that the first driving device was rotationally driven reversely under the feedback control, the controller stores a maximum value and a stopping value in the memory, determines a correction value, and determines a post-correction rotation amount based on the target rotation amount and an amount corresponding to the correction value, and in the conveying process, the controller drives the first driving device rotationally by the post-correction rotation amount.

An image recording apparatus having a recorder, a first driving device, a second driving device, a driving-force transmission device, a sensor, a memory, and a controller to conduct a conveying process and a recording process alternately and repetitively, is provided. In the conveying process, on condition that a rotationally driven amount of the first driving device exceeded a target rotation amount, the controller conducts feedback control on the first driving device to rotate reversely. On condition that the first driving device was rotationally driven reversely under the feedback control, the controller stores a maximum value and a stopping value in the memory, determines a correction value, and determines a post-correction rotation amount based on the target rotation amount and an amount corresponding to the correction value, and in the conveying process, the controller drives the first driving device rotationally by the post-correction rotation amount.

An image recording apparatus having a recorder, a first driving device, a second driving device, a driving-force transmission device, a sensor, a memory, and a controller to conduct a conveying process and a recording process alternately and repetitively, is provided. In the conveying process, on condition that a rotationally driven amount of the first driving device exceeded a target rotation amount, the controller conducts feedback control on the first driving device to rotate reversely. On condition that the first driving device was rotationally driven reversely under the feedback control, the controller stores a maximum value and a stopping value in the memory, determines a correction value, and determines a post-correction rotation amount based on the target rotation amount and an amount corresponding to the correction value, and in the conveying process, the controller drives the first driving device rotationally by the post-correction rotation amount.

A motor apparatus for a switch drive of an electric switch has an electric motor and a control apparatus for controlling the electric motor. The control apparatus has a power supply device for the electrical power supply of the electric motor. The electric power supply has a rectifier unit, a voltage measurement unit for detecting the supply voltage or a rectifier output voltage of the rectifier unit, a switch unit for generating a drive voltage for the electric motor from the supply voltage or from the rectifier output voltage, and a control unit for controlling the switch unit as a function of the supply or rectifier output voltage detected. Accordingly, the motor apparatus has a motor housing which, besides the electric motor, houses part of the power supply device and/or at least part of the control unit.

To provide a motor controller which can suppress occurrence of a torque difference between systems, even if a DC voltage difference occurs between systems, in the case where each system is provided with a DC power source. A motor controller is provided with a first controller that controls so that the first q-axis current detection value approaches the second q-axis current detection value or the second q-axis current command value obtained from the second controller, when determining that the first DC voltage is higher than the second DC voltage; and a second controller that controls so that the second q-axis current detection value approaches the first q-axis current detection value or the first q-axis current command value obtained from the first controller, when determining that the second DC voltage is higher than the first DC voltage.

The present invention provides a shunt series wound direct-current (DC) motor driving device and electric equipment. The shunt series wound DC motor driving device provided by the present invention includes: a shunt series wound DC motor; a DC power supply; and a chopper, wherein the chopper comprises m chopping units, a control signal comprises m unit control signals that respectively correspond to the m chopping units and are formed according to a preset phase stagger rule; each of unit control signals comprises w switching control signals corresponding to w switching control ends in the corresponding chopping units; the m first power output ends of all the chopping units and the m second power output ends of all the chopping units respectively correspondingly form m pairs of power output terminals; the m pairs of external terminals of the shunt series wound DC motor are connected with the m pairs of power output terminals in a one-to-one correspondence manner, wherein m is a positive integer that is not less than 2, and w is 1, 2 or 4.

The present invention provides a shunt series wound direct-current (DC) motor driving device and electric equipment. The shunt series wound DC motor driving device provided by the present invention includes: a shunt series wound DC motor; a DC power supply; and a chopper, wherein the chopper comprises m chopping units, a control signal comprises m unit control signals that respectively correspond to the m chopping units and are formed according to a preset phase stagger rule; each of unit control signals comprises w switching control signals corresponding to w switching control ends in the corresponding chopping units; the m first power output ends of all the chopping units and the m second power output ends of all the chopping units respectively correspondingly form m pairs of power output terminals; the m pairs of external terminals of the shunt series wound DC motor are connected with the m pairs of power output terminals in a one-to-one correspondence manner, wherein m is a positive integer that is not less than 2, and w is 1, 2 or 4.

Various embodiments of the present disclosure relate, generally, to a control system for a movable partition. In one embodiment, the control system is an access control system that includes a lock control interface and a remote line interface at which lock modes are asserted, and which are communicated to a door controller. Protocols installed at the controller enable the controller to provide control signals to the movable partition responsive to the various lock modes asserted at the lock control interface and remote line interface.