A Resolver-to-Digital Converter Using a Bang-Bang Type Phase Comparater

뱅뱅형 위상 비교기를 이용한 새로운 고속 추적 레졸바/디지털 변환기

In this paper, we propose a new resolver-to digital(R/D) conversion method, in which a bang-bang type phase comparator is employed for fast tracking. We eliminate from the R/D conversion loop the low-pass filter which is needed to reject carrier signal and noise. Instead, we employ two prefilters outside the R/D conversion loop that take the role of the low-pass filter. Thereby, we can construct a fast and accurate tracking R/D converter. Some simulation and experimental results as well as mathematical performance analysis are presented to demonstrate the superior tracking performance of our R/D converter over conventional tracking R/D converters.