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Title: Sequential power-up circuit

Abstract

This invention consists of a sequential power-up circuit for starting several electrical load elements in series to avoid excessive current surge, comprising a voltage ramp generator and a set of voltage comparators, each comparator having a different reference voltage and interfacing with a switch that is capable of turning on one of the load elements. As the voltage rises, it passes the reference voltages one at a time and causes the switch corresponding to that voltage to turn on its load element. The ramp is turned on and off by a single switch or by a logic-level electrical signal. The ramp rate for turning on the load element is relatively slow and the rate for turning the elements off is relatively fast. Optionally, the duration of each interval of time between the turning on of the load elements is programmable.

Inventors:
Publication Date:
Research Org.:
Westinghouse Savannah River Co., Aiken, SC (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10185853
Patent Number(s):
PATENTS-US-A7664915
Application Number:
ON: DE93002014; PAN: 7-664,915
Assignee:
Dept. of Energy
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Patent Application
Resource Relation:
Other Information: PBD: 5 Mar 1991
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 22 GENERAL STUDIES OF NUCLEAR REACTORS; COMPARATOR CIRCUITS; DESIGN; INVENTIONS; ELECTRIC CONTROLLERS; START-UP; SURGES; 426000; 220200; COMPONENTS, ELECTRON DEVICES AND CIRCUITS; COMPONENTS AND ACCESSORIES

Citation Formats

Kronberg, J W. Sequential power-up circuit. United States: N. p., 1991. Web.
Kronberg, J W. Sequential power-up circuit. United States.
Kronberg, J W. 1991. "Sequential power-up circuit". United States.
@article{osti_10185853,
title = {Sequential power-up circuit},
author = {Kronberg, J W},
abstractNote = {This invention consists of a sequential power-up circuit for starting several electrical load elements in series to avoid excessive current surge, comprising a voltage ramp generator and a set of voltage comparators, each comparator having a different reference voltage and interfacing with a switch that is capable of turning on one of the load elements. As the voltage rises, it passes the reference voltages one at a time and causes the switch corresponding to that voltage to turn on its load element. The ramp is turned on and off by a single switch or by a logic-level electrical signal. The ramp rate for turning on the load element is relatively slow and the rate for turning the elements off is relatively fast. Optionally, the duration of each interval of time between the turning on of the load elements is programmable.},
doi = {},
url = {https://www.osti.gov/biblio/10185853}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 05 00:00:00 EST 1991},
month = {Tue Mar 05 00:00:00 EST 1991}
}