Multiplexed signal conditioner

Details Multiplexed signal conditioner Multiplexed signal conditioner

2006-08-01

2008-10-07

Nguyen, Khai M (Department: 2819)

Coded data generation or conversion

Phase or time of phase change

Synchro or resolver signal

C341S111000, C341S112000, C341S141000

Reexamination Certificate

active

07432836

ABSTRACT:
A signal conditioning circuit time share multiplexes anti-aliasing filters and an A/D converter. A plurality of first tier multiplexers each time share multiplex one of a plurality of antialiasing filters between a plurality of AC or baseband input signals from a plurality of sensors. A second tier multiplexer selects its inputs from the outputs of the first tier multiplexers. The output of the second tier multiplexer feeds a high speed A/D converter. Thus, the A/D converter is time share multiplexed by the second tier multiplexer. In this manner, a plurality of sensors can share a single A/D converter. After allowing a settling time for the multiplexers and antialiasing filters, a plurality of samples of the input signals are taken, such as for one period. The samples of each AC input signal are multiplied by a sine vector and a cosine vector. The product vectors are then each averaged and the root mean square of the two averages yields the magnitude of the input signal. Mechanical angle of the input signal can be determined based upon the sign of the sine and cosine product vector averages.

REFERENCES:
patent: 3516084 (1970-06-01), Sacks et al.
patent: 3976869 (1976-08-01), Stella et al.
patent: 4062005 (1977-12-01), Freed et al.
patent: 4542336 (1985-09-01), Powell
patent: 4594540 (1986-06-01), Currie et al.
patent: 4652821 (1987-03-01), Kreft
patent: 5034743 (1991-07-01), Deppe et al.
patent: 5134397 (1992-07-01), Eyerly et al.
patent: 5241268 (1993-08-01), Lee
patent: 5260650 (1993-11-01), Schwesig et al.
patent: 5600576 (1997-02-01), Broadwater et al.
patent: 6014022 (2000-01-01), Demma et al.
patent: 6084376 (2000-07-01), Piedl et al.
patent: 6331759 (2001-12-01), Atmur
patent: 7149654 (2006-12-01), Ramsdale et al.
patent: 2004/0027118 (2004-02-01), Lenz et al.
patent: 2004/0027263 (2004-02-01), Pailleur et al.

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