Patent ID: 9136791
Filing Date: 2015-09-15
Classification: H02P

Abstract:
1. A motor driving device comprising: a communication path selection unit including a single common input path which receives, from an external device outside of the motor driving device, operation command information for controlling driving of a motor in both of a serial data format and a parallel data format, but not simultaneously; a communication unit which includes a serial interface unit which receives the operation command information from the communication path selection unit in the serial data format, and a parallel interface unit which receives the operation command information from the communication path selection unit in the parallel data format, and which outputs a driving control signal based on the operation command information input via the communication path selection unit; a driving control unit which controls driving of the motor based on the driving control signal output from the communication unit; a storage which stores communication path selection command information based on the data format of the input operation command information; a storage writing selection unit which receives information including the operation command information and special command information from the external device and outputs the received information to one of the communication path selection unit and the storage; and a storage writing selection command unit which controls the storage writing selection unit to output the received information to the communication path selection unit when the received information is the operation command information and controls the storage writing selection unit to output the received information to the storage when the received information is the special command information, wherein the communication path selection unit further includes an output path to the serial interface unit and an output path to the parallel interface unit, and selects which one of the output paths to use for outputting the operation command information which has been input to the single common input path, based on the data format of the operation command information and the communication path selection command information stored in the storage, and outputs the input operation command information to either one of the serial interface unit and the parallel interface unit through the selected output path, and wherein one of the serial interface unit and the parallel interface unit outputs the driving control signal to the driving control unit based on the input operation command information received through the selected output path.