Patent ID: 6057664
Filing Date: 2000-05-02
Classification: H02P

Abstract:
A motor driving control apparatus comprising:a current detecting section for detecting an output current from an inverter section;a current control section for outputting a voltage instruction to a PWM section from a current value detected by said current detecting section, a current instruction inputted from an external device, and a positional signal from a position detector connected to a motor;said PWM section for outputting a PWM signal to said inverter section according to the voltage instruction;a positional signal input section for receiving a positional signal from said position detector is provided in an external interface section; andsaid current control section and said PWM section is provided in a N potential control section connected to said external interface section so as to be capable of performing serial communications therewith via an insulating section; whereinsaid current detecting section directly inputs a current value detected thereby into said current control section in said N potential control section; andsaid external interface section transmits the current instruction and the positional signal inputted into said positional signal input section to said current control section through serial communications via said insulating section.