Abstract: A circuit for interconnecting a first controller area network (CAN) bus with a second CAN bus includes a first CAN transceiver, a second CAN transceiver, and a pair of transistors and six resistors electrically interconnecting the first and second CAN transceivers. The first CAN bus is included in a first device, such a bed to support a person or occupant, and the second CAN bus is included in a second device, such as a mattress supported by the bed. The circuit for interconnecting the first and second CAN busses is situated in an interior region of the mattress.

Abstract: An apparatus includes a power converter to convert incoming alternating current (AC) mains power into a direct current (DC) voltage. A linear AC pump of the apparatus has an arm that reciprocates linearly back and forth to move a pair of diaphragms to pressurize air that is output from the linear AC pump. The apparatus also includes a DC motor driver having an H-bridge that receives the DC voltage from the power converter as an input and that generates a square wave as an output that is coupled to the linear AC pump to drive the arm back and forth. The pressurized air from the linear AC pump is used to inflate one or more bladders of an air mattress, for example.

Abstract: A circuit for interconnecting a first controller area network (CAN) bus with a second CAN bus includes a first CAN transceiver, a second CAN transceiver, and a pair of transistors and six resistors electrically interconnecting the first and second CAN transceivers. The first CAN bus is included in a first device, such a bed to support a person or occupant, and the second CAN bus is included in a second device, such as a mattress supported by the bed. The circuit for interconnecting the first and second CAN busses is situated in an interior region of the mattress.