Coded data generation or conversion – Phase or time of phase change – Synchro or resolver signal
Reexamination Certificate
2007-02-27
2007-02-27
Nguyen, Linh (Department: 2819)
Coded data generation or conversion
Phase or time of phase change
Synchro or resolver signal
C341S112000
Reexamination Certificate
active
11346200
ABSTRACT:
A resolver can make accurate angle detection in an entire detection range. The resolver includes a resolver stator having an excitation winding of one phase adapted to be excited by a power supply and a first and a second output winding of two phases for outputting a change in the density of magnetic flux as a voltage, a resolver rotor arranged at a central portion of the resolver stator so as to cooperate with the resolver stator for changing a gap permeance between the resolver rotor and the resolver stator in accordance with the rotation of the resolver rotor, and a detection error correction part that corrects an angle detection error of the resolver by using the value of a Lissajous radius of a circular Lissajous waveform obtained from the amplitudes of an output signal Scos from the first output winding and an output signal Ssin from the second output winding.
REFERENCES:
patent: 4933674 (1990-06-01), Gasperi et al.
patent: 2003/0137295 (2003-07-01), Akutsu et al.
patent: 2005/0168217 (2005-08-01), Nakano et al.
patent: 07-318369 (1995-12-01), None
patent: 2001-128484 (2001-05-01), None
Akutsu Satoru
Hemmi Shinsuke
Isono Shuji
Kodama Seiki
Mai Lam T.
Mitsubishi Denki & Kabushiki Kaisha
Nguyen Linh
Sughrue & Mion, PLLC
LandOfFree
Resolver does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Resolver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resolver will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3832501