Converter for excitation of electrical motor, has timer-compare-unit exhibiting high clock frequency than frequency related to periodic time interval and than reciprocal value of periodic time interval

摘要

#CMT# #/CMT# The converter has a signal electronics (3) including a processing unit (1) for determining a new value for a physical parameter e.g. voltage space vector, of an electric motor (M) and/or for an output signal voltage for an output (5) in a periodic time interval. A data cable is provided between an input of a timer-compare-unit (2) and the processing unit. The cable transmits information with respect to time of change of signal voltage of an output (6). The timer-compare-unit exhibits a high clock frequency than a frequency related to the interval and than a reciprocal value of the interval. #CMT# : #/CMT# An independent claim is also included for a method for operating a converter for excitation of an electrical motor. #CMT#USE : #/CMT# Converter for excitation of an electrical motor. #CMT#ADVANTAGE : #/CMT# The converter is operated in a cost-effective manner. The utilization of the timer-compare-unit enables generation of the output signal voltage with very high accuracy at low cost. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of a converter for excitation of an electrical motor. M : Electric motor 1 : Processing unit 2 : Timer-compare-unit 3 : Signal electronics 5, 6 : Outputs.