PHASE-LOCKED RESOLVER TRACKING SYSTEM

摘要

An improved phase-locked feedback loop which functions in conjunction with a resolver as an efficient and highly accurate tracking system for continually tracking the angle information in modulated resolver output waveforms. The improvement basically comprises a phase-locked loop incorporating as many phase-sensitive detectors as there are resolver outputs, each detector operating on one of the output windings of the resolver, the circuit being configured so as to provide resolver-angle to phase-angle conversion with substantially increased accuracy and performance improvement.