EP 0165304 B1 19920401 - PHASE ANALOG ENCODING SYSTEM WITH COMPENSATION
Title (en)
PHASE ANALOG ENCODING SYSTEM WITH COMPENSATION
Publication
Application
Priority
US 56065883 A 19831212
Abstract (en)
[origin: WO8502702A1] A phase analog encoding system with compensation for the phase shift error inherent in a resolver position transducer (2). The inherent phase shift error in a resolver position transducer is compensated in a time multiplexed fashion by periodically applying a known reference signal (25) or (26) to the resolver and measuring the electrical phase shift across only the resolver. The newly measured value of the inherent electrical phase shift is compared with the last measured value of the inherent electrical phase shift and any deviation is calculated. This deviation is used to determine the appropriate compensation value for the inherent electrical phase shift. The compensation value is subtracted from the resolver phase shift during normal operation resulting in an output signal which is independent of the inherent electrical phase shift error in the resolver position transducer.
IPC 1-7
IPC 8 full level
G08C 19/46 (2006.01)
CPC (source: EP)
G08C 19/46 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB LI LU NL SE
DOCDB simple family (publication)
WO 8502702 A1 19850620; CA 1217866 A 19870210; DE 3485632 D1 19920507; EP 0165304 A1 19851227; EP 0165304 A4 19880427; EP 0165304 B1 19920401
DOCDB simple family (application)
US 8402019 W 19841210; CA 469585 A 19841207; DE 3485632 T 19841210; EP 85900395 A 19841210