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}
}