Reciprocating compressor controller for refrigerator, controls voltage supply to drive circuit to make stroke corresponding to detected phase difference inflection point

摘要

A detector (28) detects the phase difference inflection point, based on detected current/voltage difference of the drive circuit (20). A stroke control unit (25) controls voltage supply to the drive circuit to make stroke, corresponding to the detected phase difference inflection point. An Independent claim is included for reciprocating compressor control method.