The present invention provides an automatic animal door system. The automatic animal door system includes an animal door module, a linear motor driver and a control module. The animal door module includes a door and a frame having an opening, and the door is lively connected with the frame and configured to move between a closed position covering the opening and an open position away from the opening. The linear motor driver is connected with the door and configured to drive the door move between the closed position and the open position. The control module is electrically connected the linear motor driver and includes a processor and a non-volatile memory storing a programmed set of instructions. The processor executes the programmed set of instructions to control the linear motor driver open or close the door.

The present invention provides an automatic animal door system. The automatic animal door system includes an animal door module, a linear motor driver and a control module. The animal door module includes a door and a frame having an opening, and the door is lively connected with the frame and configured to move between a closed position covering the opening and an open position away from the opening. The linear motor driver is connected with the door and configured to drive the door move between the closed position and the open position. The control module is electrically connected the linear motor driver and includes a processor and a non-volatile memory storing a programmed set of instructions. The processor executes the programmed set of instructions to control the linear motor driver open or close the door.

The invention relates to a linear motor for a sliding door, comprising a mover assembly, a stator assembly and a controller for controlling the mover assembly to move, the stator assembly is electrically connected with the controller, and comprises two or more stators; the controller is arranged between the two adjacent stators; and end parts of the stators on two sides of the controller are provided with Hall devices. The mover assembly can move on a left side and a right side of the controller, and the moving range is increased. Furthermore, the Hall devices are arranged at the end parts of the stators on the two sides of the controller, the moving range of the mover assembly to the left side and the right side can be further increased, so that the system can adapt to a wider door opening without changing the length of the stator assembly.

The invention relates to a linear motor for a sliding door, comprising a mover assembly, a stator assembly and a controller for controlling the mover assembly to move, the stator assembly is electrically connected with the controller, and comprises two or more stators; the controller is arranged between the two adjacent stators; and end parts of the stators on two sides of the controller are provided with Hall devices. The mover assembly can move on a left side and a right side of the controller, and the moving range is increased. Furthermore, the Hall devices are arranged at the end parts of the stators on the two sides of the controller, the moving range of the mover assembly to the left side and the right side can be further increased, so that the system can adapt to a wider door opening without changing the length of the stator assembly.

The present application provides a touch-free door driving device initiated upon the affirmative action or command of a user. More specifically, a user a door driving device is provided which can open the door when the user is at a distant location and is approaching the door. This apparatus can be easily installed on either side of the door which is user friendly and easy installation with minimal steps such as anyone can install it at any door of any room. Additionally, in spite of the door thickness, the apparatus can be installed without drilling or using any sort of tool. Preferably, the door driving device is provided with sufficient pull and push torque without any stoppage.

The present application provides a touch-free door driving device initiated upon the affirmative action or command of a user. More specifically, a user a door driving device is provided which can open the door when the user is at a distant location and is approaching the door. This apparatus can be easily installed on either side of the door which is user friendly and easy installation with minimal steps such as anyone can install it at any door of any room. Additionally, in spite of the door thickness, the apparatus can be installed without drilling or using any sort of tool. Preferably, the door driving device is provided with sufficient pull and push torque without any stoppage.

The present invention relates to exterior or interior doors for residential or commercial buildings, such as for a home, apartment, condominium, hotel room or business, and, more particularly, to a door provided with a rechargeable battery as a source of electrical power that may be used to operate electric devices mounted to the door. The door has electric devices attached thereto. The electric devices which. are powered by one or more rechargeable batteries that are charged by one or more energy harvester systems and/or by direct connection to a power source. A system for distributing the power collected from the energy harvester system and/or the wired connection are also provided.

The present invention relates to exterior or interior doors for residential or commercial buildings, such as for a home, apartment, condominium, hotel room or business, and, more particularly, to a door provided with a rechargeable battery as a source of electrical power that may be used to operate electric devices mounted to the door. The door has electric devices attached thereto. The electric devices which. are powered by one or more rechargeable batteries that are charged by one or more energy harvester systems and/or by direct connection to a power source. A system for distributing the power collected from the energy harvester system and/or the wired connection are also provided.

Systems and methods are provided for protecting a door system from damage by a back electromotive force (EMF) voltage generated when a door coupled to a door actuator is manually closed. The door system may include a driver configured to drive the door actuator to move the door, and a back EMF protection circuit. The back EMF protection circuit detects a back EMF voltage generated by the door actuator when the door is moved, and determines whether the back EMF voltage exceeds an overvoltage threshold. In response to determining that the back EMF voltage exceeds the overvoltage threshold, the back EMF protection circuit causes the driver to transition to an enabled state to short the back EMF voltage to ground.

Systems and methods are provided for protecting a door system from damage by a back electromotive force (EMF) voltage generated when a door coupled to a door actuator is manually closed. The door system may include a driver configured to drive the door actuator to move the door, and a back EMF protection circuit. The back EMF protection circuit detects a back EMF voltage generated by the door actuator when the door is moved, and determines whether the back EMF voltage exceeds an overvoltage threshold. In response to determining that the back EMF voltage exceeds the overvoltage threshold, the back EMF protection circuit causes the driver to transition to an enabled state to short the back EMF voltage to ground.