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Title	Electrical circuit for data reduction
Creator/Author	Kronberg, J.W.
Publication Date	1991 Dec 31
OSTI Identifier	OSTI ID: 10114169; Legacy ID: DE94005153
Report Number(s)	PATENTS-US--A7814354
DOE Contract Number	AC09-89SR18035
Other Number(s)	Other: ON: DE94005153; PAN: US patent application 7-814,354
Resource Type	Patent Application
Resource Relation	Other Information: PBD: 1991
Research Org	Westinghouse Savannah River Co., Aiken, SC (United States)
Sponsoring Org	USDOE, Washington, DC (United States)
Subject	42 ENGINEERING; ELECTRONIC CIRCUITS; DESIGN; INVENTIONS; MULTIPLEXERS; DATA ACQUISITION SYSTEMS; ELECTRIC POTENTIAL
Description/Abstract	This invention is comprised of an electrical circuit for determining characteristic voltages, such as maximum, minimum, average and root mean squared voltages, of a time-varying electrical signal. The circuit comprises a positive and a negative peak detector that feed the positive and negative voltage peaks detected in each of a series of time intervals into a solid-state multiplexer controlled by a process controller. The time intervals are generated by the process controller in combination with a clocking, circuit. The multiplexer applies the positive and negative peak voltages to a set of four capacitors, apply the positive peak to one capacitor during one interval and then the negative peak to that capacitor in a subsequent interval so that each capacitor is alternatingly accumulating a positive peak then a negative peak to obviate the need for resetting each capacitor. After the positive peak voltage is applied to one capacitor, the connection is switched during the next interval for reading the negative peak voltage, then switched again for applying, a negative peak voltage, then switched once more for reading the negative peak voltage, the multiplexer serving, as a solid state commutator for switching the electrical connection. Alternatively, peak maximum and minimum voltage detectors may be replaced with circuitry designed to obtain the additional characteristic voltages desired in each interval.
Country of Publication	United States
Language	English
Format	Size: 10 p.; Format: Adobe PDF Document with Extractable Text
Availability	OSTI as DE94005153; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov To purchase this media from NTIS, click here
Rights	Patent Assignee: Dept. of Energy
System Entry Date	2005 Jun 23
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