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Title: Sequential power-up circuit

Abstract

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. 2 figs.

Inventors:
Issue Date:
OSTI Identifier:
7274654
Patent Number(s):
5119014 A
Application Number:
PPN: US 7-664915
Assignee:
PTO; EDB-94-081278
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Patent
Resource Relation:
Patent File Date: 5 Mar 1991
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ELECTRICAL EQUIPMENT; OPEN-LOOP CONTROL; POWER DEMAND; ELECTRIC CONTROLLERS; ELECTRONIC CIRCUITS; CONTROL; CONTROL EQUIPMENT; DEMAND; EQUIPMENT; 320303* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Equipment & Processes

Citation Formats

Kronberg, J.W. Sequential power-up circuit. United States: N. p., 1992. Web.
Kronberg, J.W. Sequential power-up circuit. United States.
Kronberg, J.W. Tue . "Sequential power-up circuit". United States.
@article{osti_7274654,
title = {Sequential power-up circuit},
author = {Kronberg, J.W.},
abstractNote = {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. 2 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {6}
}