Phase detection method, phase detecting apparatus,...

Details Phase detection method, phase detecting apparatus,... Phase detection method, phase detecting apparatus,...

2008-01-18

2010-11-23

Duda, Rina I (Department: 2837)

Electricity: motive power systems

Induction motor systems

C318S721000

Reexamination Certificate

active

07839114

ABSTRACT:
It is determined which of six continuous sections having different magnitude correlation of signal amplitude of each phase of an input three-phase signal a section is. Predetermined subtraction is performed between respective phases in the section, to obtain a normalized amplitude value normalized in the section, using the subtraction result. The normalized amplitude value is converted to a vector phase for one cycle based on a predetermined phase and output corresponding to the determined section.

REFERENCES:
patent: 4328454 (1982-05-01), Okuyama et al.
patent: 6288507 (2001-09-01), Makino et al.
patent: 6501243 (2002-12-01), Kaneko et al.
patent: 2003/0020429 (2003-01-01), Masaki et al.
patent: 2004/0145334 (2004-07-01), Virtanen
patent: 5-236789 (1993-09-01), None
patent: 2004-336876 (2004-11-01), None
patent: 2006-223085 (2006-08-01), None

Affiliated with

Also associated with

Rating

Phase detection method, phase detecting apparatus,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase detection method, phase detecting apparatus,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase detection method, phase detecting apparatus,... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4235605