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Title: High temperature charge amplifier for geothermal applications

Abstract

An amplifier circuit in a multi-chip module includes a charge to voltage converter circuit, a voltage amplifier a low pass filter and a voltage to current converter. The charge to voltage converter receives a signal representing an electrical charge and generates a voltage signal proportional to the input signal. The voltage amplifier receives the voltage signal from the charge to voltage converter, then amplifies the voltage signal by the gain factor to output an amplified voltage signal. The lowpass filter passes low frequency components of the amplified voltage signal and attenuates frequency components greater than a cutoff frequency. The voltage to current converter receives the output signal of the lowpass filter and converts the output signal to a current output signal; wherein an amplifier circuit output is selectable between the output signal of the lowpass filter and the current output signal.

Inventors:
; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1230012
Patent Number(s):
9,209,766
Application Number:
14/023,209
Assignee:
Sandia Corporation
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Sep 10
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY

Citation Formats

Lindblom, Scott C., Maldonado, Frank J., and Henfling, Joseph A. High temperature charge amplifier for geothermal applications. United States: N. p., 2015. Web.
Lindblom, Scott C., Maldonado, Frank J., & Henfling, Joseph A. High temperature charge amplifier for geothermal applications. United States.
Lindblom, Scott C., Maldonado, Frank J., and Henfling, Joseph A. Tue . "High temperature charge amplifier for geothermal applications". United States. https://www.osti.gov/servlets/purl/1230012.
@article{osti_1230012,
title = {High temperature charge amplifier for geothermal applications},
author = {Lindblom, Scott C. and Maldonado, Frank J. and Henfling, Joseph A.},
abstractNote = {An amplifier circuit in a multi-chip module includes a charge to voltage converter circuit, a voltage amplifier a low pass filter and a voltage to current converter. The charge to voltage converter receives a signal representing an electrical charge and generates a voltage signal proportional to the input signal. The voltage amplifier receives the voltage signal from the charge to voltage converter, then amplifies the voltage signal by the gain factor to output an amplified voltage signal. The lowpass filter passes low frequency components of the amplified voltage signal and attenuates frequency components greater than a cutoff frequency. The voltage to current converter receives the output signal of the lowpass filter and converts the output signal to a current output signal; wherein an amplifier circuit output is selectable between the output signal of the lowpass filter and the current output signal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {12}
}

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