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 is described. 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. 10 figures.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 5074790
- Patent Number(s):
- 5298867
- Application Number:
- PPN: US 7-807144
- Assignee:
- Universities Research Association, Inc., Washington, DC (United States)
- DOE Contract Number:
- AC35-89ER40486
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 13 Dec 1991
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; ELECTRONIC EQUIPMENT; SYNCHRONIZATION; FREQUENCY MEASUREMENT; OPERATION; STEADY-STATE CONDITIONS; EQUIPMENT; 426000* - Engineering- Components, Electron Devices & Circuits- (1990-)
Citation Formats
Mestha, L K. Phase-locked loop with controlled phase slippage. United States: N. p., 1994.
Web.
Mestha, L K. Phase-locked loop with controlled phase slippage. United States.
Mestha, L K. Tue .
"Phase-locked loop with controlled phase slippage". United States.
@article{osti_5074790,
title = {Phase-locked loop with controlled phase slippage},
author = {Mestha, L 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 is described. 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. 10 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {3}
}