Quadrature Sine Wave Signals Generated by Selection Topology and its Components
Journal Title: Bonfring International Journal of Power Systems and Integrated Circuits - Year 2012, Vol 2, Issue 3
Abstract
This paper presents how to generate high frequency quadrature sinewave signals by selection topology and its active and passive components. Also, presents how to choose the value of inductor by different ways followed by performance comparison of various VCO topologies. The overall performance is displayed by all-pMOS VCO in terms of supply voltage and tuning range. The performance comparison of all-pMOS LC-VCO using various capacitive loads is discussed. All-pMOS LC-VCO with MOS capacitor switched capacitor array (SCA) followed by divider using CML latch without fixed tail current source is used for generation of high linearity quadrature signals. A three 2.4/4.8 GHz CMOS Quadrature Voltage Controlled Oscillators (QVCO?s) tuned by a diode varactor, inversion-mode pMOS varactor and an accumulation-mode nMOS varactor, respectively. The performance comparison of different varactors QVCO is simulated in terms of frequency range, tuning range, harmonic distortion and power consumption. The overall performance is displayed by inversion mode pMOS varactor QVCO. However, all the performances of varactor QVCO?s are significantly closer with all-pMOS LC VCO compared with other VCO topologies like all-nMOS LC-VCO and complementary cross coupled LC-VCO, due to low dc impedance path between the varactor to ground terminal. It displayed the power consumption of all varactor QVCO?s are equal. The QVCO?s were implemented in a 0.18 ?m standard CMOS technology as the supply voltage is 1 V. The pre and post layout simulation results are compared in terms of tuning range, phase noise, power dissipation, and harmonic distortion, self oscillation frequency of divider and reference voltage of inversion mode pMOS varctor QVCO.
Authors and Affiliations
Arivazhagan P, Tarun Kanti Bhattacharyya
Keywords
Related Articles
- EP ID EP93128
- DOI 10.9756/BIJPSIC.2015
- Views 121
- Downloads 0
Fuzzy Approach to Nodal Reliability Ranking for Radial Distribution Networks
Power distribution systems are exposed to load swings and faults, which can lead to voltage instability and collapse. It's important for a distribution engineer is to identify the sensitive nodes so that corrective actio...
Analysis of Circuit Breaker and Relays in Substations
There is a necessity of circuit breaker replacement with Gas circuit breaker is to meet the day by day growing load demand, to reduce the down time to upgrade the system with current technology and to provide better prot...
Three Phase Active Conditioner for Harmonics Mitigation
The Shunt Active Power Filter is a very essential tool to remove harmonic currents and to reimburse reactive power for nonlinear loads. The fundamental standard of process of a Shunt Active Power Filter is to introduce a...
Modelling of Solar Still Using Granular Activated Carbon in Matlab
In the last years the demand for fresh water is increasing tremendously all over the world. The future demand will be very high and the fresh water resources are getting depleted at a faster rate. We need to depend on th...
PSO Based Optimal Placement and Setting of FACTS Devices for Improving the Performance of Power Distribution System
Power systems, under heavily loaded conditions, are at high risks of probable line outage and consequent voltage instability problem. Real power loss and voltage deviation minimization are reliable indicators of voltage...