A Single-Phase Globally Stable Frequency-Locked Loop Based on the Second-Order Harmonic Oscillator Model

Extended Range Second Order Digital Phase Locked Loop

Phase error dynamics of a conventional second order Digital Phase Locked Loop (DPLL) and that of a newly proposed modified second order DPLL (MSODPLL) have been studied using digital computers. Ranges of initial conditions leading to the phase locking condition were determined from computer simulation of both conventional and modified second order DPLL. Lyapunov exponents were also examined, fo...

Grid-voltage Synchronization Algorithms Based on Phase-locked Loop and Frequency-locked Loop for Power Converters

A phase-locked frequency divide-by-3 optical parametric oscillator

Accurate phase-locked 3:1 division of an optical frequency was achieved, by using a continuous-wave (cw) doubly resonant optical parametric oscillator. A fractional frequency stability of 2×10-17 of the division process has been achieved for 100 s integration time. The technique developed in this work can be generalized to the accurate phase and frequency control of any cw optical parametric os...

Analysis of phase Locked Loop using Ring Voltage Controlled Oscillator

There is several application of phase locked loop in the field of communication. It depends on the mixed signal operation. It is capable of fast locking capability. present work based on redesign of the PLL system using 90nm technology process at frequency 1 GHz and the lock time is 179.5 ns and transient analysis of the PLL is simulate between 1ns to 1000ns.it consumes the 179.5 mW power at 1....

Simulation Of Acquisition Behavior Of Second-Order Analog Phase-Locked Loop Using Phase Error Process

This work presents a method for modeling and simulating a second-order analog phase-locked loops (PLL) in time domain for studying its acquisition behavior. The proposed method uses phase error process for analyzing the PLL characteristics. The method enables to study the lockin and pull-in phenomena of analog PLL and the effects of changing phase offset and voltage offset values on acquisition...