Series bridge circuit with amplifiers

Details Series bridge circuit with amplifiers Series bridge circuit with amplifiers

2006-02-28

2006-02-28

Le, Don (Department: 2819)

Amplifiers

With hall effect type means

C330S011000, C330S051000

Reexamination Certificate

active

07005915

ABSTRACT:
Two bridge type transducers are coupled in series with their outputs each driving one of a pair of differential amplifiers, with the outputs tied together in a push-pull configuration. In further embodiments, push-pull operation is obtained by matching amplifier gain components and using current mirrors. Lower voltage operation may be achieved by simple diode level shifting of the transducer outputs. In one embodiment, the transducers comprise Hall effect sensors.

REFERENCES:
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patent: 5337013 (1994-08-01), Langer et al.
patent: 5834952 (1998-11-01), Ngo
patent: 6104187 (2000-08-01), Marx et al.
patent: 6195228 (2001-02-01), Bennett et al.
patent: 6445171 (2002-09-01), Sandquist et al.
patent: 6577187 (2003-06-01), Lesko
patent: 2333080 (1975-01-01), None
Munter, P. , “Spinning-Current Method for Offset Reduction in Silicon Hall Plates”, Delft University Press, Delft, The Netherlands,(1992), “no month”.

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