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phase-locked-loop operation

Energy Efficient and High Speed Charge-Pump Phase Locked Loop

Energy Efficient and High Speed Charge-Pump Phase Locked Loop

... The circuits used to implement the PFD are shown in Fig.2 and Fig.3. In this design, signal edges are detected by the flip- flops. The flip-flops are capable of providing a high-accuracy detection and performing at a ...

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Synchronization performance of noise based frequency offset
modulation

Synchronization performance of noise based frequency offset modulation

... Digital phase-locked loops were analyzed in [32]. Phase acquisition was found to be complete within an impressive 11 cycles of the incoming signal ...subsequently phase-locks by means of a ...

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A THEORITICAL FRAMEWORK OF PHASE-LOCKED LOOP AND ITS OPERATIONS IN ANALOG COMMUNION

A THEORITICAL FRAMEWORK OF PHASE-LOCKED LOOP AND ITS OPERATIONS IN ANALOG COMMUNION

... The phase-locked loop (PLL) is the most critical procedure for era of multiplexing of message ...multiplier operation is presented, and characteristic of the PD for various signal waveforms is ...

9

Implementation of Low Power All Digital Phase Locked Loop

Implementation of Low Power All Digital Phase Locked Loop

... dco. Loop filter effectively performs the following calculations once on each cycle of dco clock period for duration of ...implemented loop filter is presented in figure ...which phase error ...

7

An Improved Balanced Optical Phase-Locked Loop Incorporating an Electro-Optic Phase Modulator

An Improved Balanced Optical Phase-Locked Loop Incorporating an Electro-Optic Phase Modulator

... Optical phase-locked loops (OPLL) are used in many applications involving frequency stabilization of a laser, clock extraction in high-speed optical communication systems, low noise microwave or mm-wave ...

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ANALYTICAL STUDY OF ANALOG PHASE-LOCKED LOOP IN MESSAGE SIGNALS TRANSMISSION

ANALYTICAL STUDY OF ANALOG PHASE-LOCKED LOOP IN MESSAGE SIGNALS TRANSMISSION

... The English physicist Edward Appleton initially portrayed the PLL and it showed up in the Proceedings of the Cambridge Philosophical Society in 1923.In 1953, Gruen distributed a paper particularly on the subject of ...

8

Fixed Point Iteration Chaos Controlled ZCDPLL

Fixed Point Iteration Chaos Controlled ZCDPLL

... stable operation of first and second order Zero Crossing Digital Phase Locked Loop (ZCDPLL) is extended by using a Fixed Point Iteration (FPI) method with re- ...sampler phase detector ...

11

A Digital Phase Locked Loop Speed Control of Three Phase Induction Motor Drive: Performances Analysis

A Digital Phase Locked Loop Speed Control of Three Phase Induction Motor Drive: Performances Analysis

... IMs are used in many industry sectors as the leading element to convert electrical energy into mechanical one. The main challenge is based on robustness and low cost. The performance of the motor speed control required ...

8

A Low Power VLSI Design of an All Digital Phase Locked Loop

A Low Power VLSI Design of an All Digital Phase Locked Loop

... The K counter consists of two independent counters, which are usually referred to as “UP-counter” and “DOWN- counter”. In reality, however, both counters are always counting upward. K is the modulus of both counters; ...

5

High Frequency Phase Detector in Phase Locked Loop

High Frequency Phase Detector in Phase Locked Loop

... Phase Locked Loops (PLL) circuits are used for frequency ...The operation of this circuit is typical of all phase locked ...the phase of a voltage controlled oscillator ...the ...

13

Phase Locked Loop Test Methodology

Phase Locked Loop Test Methodology

... the loop filter node can be considered as the critical controlling node of the ...correct loop filter operation is essential if the PLL is to function properly over all desired operational ...

38

Volume 3, Issue 3, March 2014 Page 528

Volume 3, Issue 3, March 2014 Page 528

... Phase locked loops are widely used now a days in digital frequency synthesis for most RF ...fractional-N phase locked loop frequency synthesizer is discussed in this paper which ...

6

Simulation of Analog Phase-locked Loop for Frequency Hopping Application

Simulation of Analog Phase-locked Loop for Frequency Hopping Application

... PD, loop filter (LF), voltage controlled oscillator (VCO) and sequence generator ...the operation is true analog ...the phase error at the input of the multiplier. In response to this phase ...

5

The Operation and Model of UPQC in Voltage Sag Mitigation Using EMTP by Direct Method

The Operation and Model of UPQC in Voltage Sag Mitigation Using EMTP by Direct Method

... single phase, so unbalance on phase would not be ...single phase to ground or two phase and sensitive load is also three phase, so a synchronizer like PLL (phase locked ...

9

Analysis of sub sampling phase locked loop dynamic behaviour

Analysis of sub sampling phase locked loop dynamic behaviour

... 2. Lock Perturbation: If any charge is injected into a phase-locked SSPLL that causes a loss of that lock, it is called lock perturbation. In case a perturbation is large enough to force the SSPLL out of ...

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Phase Locked Loop using VLSI Technology for Wireless Communication

Phase Locked Loop using VLSI Technology for Wireless Communication

... and phase extraction among others. Phase-locked loop can be used to achieve an exact phase and frequency relation between two independent ...lock loop is a control system that ...

5

Design of Single Phase SiC Bidirectional DC-AC Converter with Low-Cost PLL for Power Factor Correction

Design of Single Phase SiC Bidirectional DC-AC Converter with Low-Cost PLL for Power Factor Correction

... factor with a brief description of inductor design, LCL filter and phase locked loop theory for grid 159. synchronization[r] ...

14

Design of 600-800 MHz Programmable Phase Locked Loop

Design of 600-800 MHz Programmable Phase Locked Loop

... Abstract: In this paper – emphasis is made on the design and architecture of the Programmable PLL. The frequency range of working of the Programmable PLL is 600-8000MHz with settling times 9, 10, 13 and 20 uSec for the ...

7

Design and Implementation of Modified Charge Pump for Phase Locked Loop

Design and Implementation of Modified Charge Pump for Phase Locked Loop

... closed loop system that locks the phase of an output signal to an input reference ...zero phase difference between two signals. The components of PLL are the Phase Frequency Detector (PFD), ...

5

A Review of Phase Locked Loop

A Review of Phase Locked Loop

... For phase frequency detector, a different class of digital filters called sequential filters are employed [4]. An example of sequential filter is depicted in figure 7. The N before M filter operates as follows. Up ...

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