Amplifiers – Signal feedback – Amplifier in signal feedback path
Reexamination Certificate
2006-02-14
2006-02-14
Nguyen, Patricia (Department: 2817)
Amplifiers
Signal feedback
Amplifier in signal feedback path
C330S288000, C330S291000
Reexamination Certificate
active
06998913
ABSTRACT:
A charge amplifier includes an amplifier, feedback circuit, and cancellation circuit. The feedback circuit includes a capacitor, inverter, and current mirror. The capacitor is coupled across the signal amplifier, the inverter is coupled to the output of the signal amplifier, and the current mirror is coupled to the input of the signal amplifier. The cancellation circuit is coupled to the output of the signal amplifier. A method of charge amplification includes providing a signal amplifier; coupling a first capacitor across the signal amplifier; coupling an inverter to the output of the signal amplifier; coupling a current mirror to the input of the signal amplifier; and coupling a cancellation circuit to the output of the signal amplifier. A front-end system for use with radiation sensors includes a charge amplifier and a current amplifier, shaping amplifier, baseline stabilizer, discriminator, peak detector, timing detector, and logic circuit coupled to the charge amplifier.
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Borgosian Margaret C.
Brookhaven Science Associates LLC
Nguyen Patricia
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