Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With coupling means
Reexamination Certificate
2005-08-09
2005-08-09
Deb, Anjan (Department: 2858)
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With coupling means
C324S10300R
Reexamination Certificate
active
06927563
ABSTRACT:
The invention relates to a method for determining a value of a current using a current transformer that operates in the core saturation region. A peak value detector determines a peak value of one half-cycle of the secondary current. The peak value is stored in a storage element for further processing. A comparator detects that the peak value has been reached. After this, the comparator supplies a switching signal to a signal processing unit, and this signal starts the signal processing unit. The signal processing unit receives the peak value that was stored in the storage element and provides this value for further processing. A RESET pulse is then transmitted to a switching apparatus to discharge the storage element and thus allow the detection of the next peak value.
REFERENCES:
patent: 3334272 (1967-08-01), Lipnitz
patent: 3846675 (1974-11-01), Shimp
patent: 4255705 (1981-03-01), Milkovic
patent: 4482862 (1984-11-01), Leehey
patent: 4823075 (1989-04-01), Alley
patent: 4912396 (1990-03-01), Groenenboom
patent: 5055773 (1991-10-01), Thomas et al.
patent: 6040689 (2000-03-01), Gluszek
patent: 1 945 347 (1971-03-01), None
patent: 24 04 048 (1974-11-01), None
patent: 118 728 (1976-03-01), None
patent: 27 04 337 (1977-08-01), None
patent: 37 10 880 (1987-10-01), None
patent: 39 12 542 (1990-10-01), None
patent: 43 26 538 (1995-02-01), None
patent: 198 02 831 (1998-08-01), None
patent: 199 58 938 (2001-06-01), None
patent: 0 445 921 (2001-09-01), None
patent: 2551217 (1985-03-01), None
patent: 2 339 295 (2000-01-01), None
Tietze/Schenk: “Halbleiterschaltungstechnik” [semiconductor circuit technology],Springer Verlag, Berlin, 1993, pp. 876-880, XP-002274203.
ABB Patent GmbH
Deb Anjan
Greenberg Laureance A.
Locher Ralph E.
Stemer Werner H.
LandOfFree
Method and device for current value determination using a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for current value determination using a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for current value determination using a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3477910