Method and apparatus for learning phase error or timing delay in current converter and power measuring apparatus including error correction of current converter

摘要

Problem to be solved: to provide a method and an apparatus for learning a phase error or a timing delay in a current converter.Current converters are widely used in current measurement systems.The current converter isolates between the power supply voltage and the measuring instrument.However, if the current to the load deviates from the power supply voltage with respect to the load, there may be a small phase error that causes serious error.This disclosure describes a robust measurement apparatus and method that can be used in the field to monitor and correct phase errors.Diagram