Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2006-12-26
2006-12-26
Pascal, Robert (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
Reexamination Certificate
active
07154333
ABSTRACT:
An amplifier circuit controls the output current through an inductive load. A signal is amplified by one or more op amps, and sourced into a back to back coupling of an NPN transistor and a PNP transistor. In a positive circuit segment, current is sourced to an inductive load, and in a negative segment, current is sunk from the inductive load. The current at the output of the inductive load flows through a resistor, and the resultant voltage drop is negatively fed back to the op amp.
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Brosh Richard M.
Willis Scott C.
Bae Systems Information and Electronic Systems Integration Inc.
Flanagan Krista M.
Long Daniel J.
Pascal Robert
Wurm Mark A.
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