Phase-locked loop with controlled phase slippage
Abstract
A system for synchronizing a first subsystem controlled by a changing frequency sweeping from a first frequency to a second frequency, with a second subsystem operating at a steady state second frequency. Trip plan parameters are calculated in advance to determine the phase relationship between the frequencies of the first subsystem and second subsystem in order to obtain synchronism at the end of the frequency sweep of the first subsystem. During the time in which the frequency of the first subsystem is sweeping from the first frequency to the second frequency, the phase locked system compares the actual phase difference with the trip plan phase difference and incrementally changes the sweep frequency in a manner so that phase lock is achieved when the first subsystem reaches a frequency substantially identical to that of the second subsystem.
- Inventors:
-
- Cedar Hill, TX
- Issue Date:
- Research Org.:
- UNIVERSITIES RESEARCH ASSN
- OSTI Identifier:
- 869217
- Patent Number(s):
- 5298867
- Assignee:
- Universities Research Association, Inc. (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03L - AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- DOE Contract Number:
- AC35-89ER40486
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- phase-locked; loop; controlled; phase; slippage; synchronizing; subsystem; changing; frequency; sweeping; operating; steady; trip; plan; parameters; calculated; advance; determine; relationship; frequencies; obtain; synchronism; sweep; time; locked; compares; difference; incrementally; changes; manner; lock; achieved; reaches; substantially; identical; controlled phase; phase difference; substantially identical; phase relationship; phase-locked loop; frequency sweeping; controlled ph; /315/327/331/
Citation Formats
Mestha, Lingappa K. Phase-locked loop with controlled phase slippage. United States: N. p., 1994.
Web.
Mestha, Lingappa K. Phase-locked loop with controlled phase slippage. United States.
Mestha, Lingappa K. Sat .
"Phase-locked loop with controlled phase slippage". United States. https://www.osti.gov/servlets/purl/869217.
@article{osti_869217,
title = {Phase-locked loop with controlled phase slippage},
author = {Mestha, Lingappa K},
abstractNote = {A system for synchronizing a first subsystem controlled by a changing frequency sweeping from a first frequency to a second frequency, with a second subsystem operating at a steady state second frequency. Trip plan parameters are calculated in advance to determine the phase relationship between the frequencies of the first subsystem and second subsystem in order to obtain synchronism at the end of the frequency sweep of the first subsystem. During the time in which the frequency of the first subsystem is sweeping from the first frequency to the second frequency, the phase locked system compares the actual phase difference with the trip plan phase difference and incrementally changes the sweep frequency in a manner so that phase lock is achieved when the first subsystem reaches a frequency substantially identical to that of the second subsystem.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}
Works referenced in this record:
Early Instrumentation Projects at the SSC
book, January 1990
- Martin, D. J.; Mestha, L. K.; Miller, S. A.
- Supercollider 2
A controlled master frequency oscillator for the SSC low energy booster
conference, January 1991
- Mestha, L. K.
- Accelerator instrumentation, AIP Conference Proceedings