Electronics ETFPub Date : 2019-07-08DOI: 10.7251/els1923060z
Avireni Srinivasulu, Syed Zahiruddin, M. Sarada
{"title":"Dual Output Sinusoidal Oscillator Using Second Generation Current Controlled Conveyor","authors":"Avireni Srinivasulu, Syed Zahiruddin, M. Sarada","doi":"10.7251/els1923060z","DOIUrl":"https://doi.org/10.7251/els1923060z","url":null,"abstract":"Second Generation Current Controlled Conveyor (CCCII) based tunable Dual Output Sinusoidal Oscillator (MSO) is proposed. It consists of three CCCIIs, a resistor and two grounded capacitors. By tuning external DC bias current, the oscillator frequency and commencement of its oscillations are controlled electronically. The proposed circuit is verified using PSPICE simulator and also on laboratory breadboard using commercially available integrated circuits Current Feedback Operational Amplifier (AD844AN) and Operational Transconductance Amplifier (LM13600) at a supply rail voltage of ±6 V. Further its nonlinearities, sensitivities, performance characteristics are also verified. Comparison of the proposed topology with the ongoing methods are also undertaken. PSPICE simulation results are verified with a low supply voltage of ±1 V, temperature analysis, analysis by using Montecarlo method and finally Total Harmonic Distortion (THD) is also demonstrated.","PeriodicalId":290965,"journal":{"name":"Electronics ETF","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124434547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electronics ETFPub Date : 2019-07-08DOI: 10.7251/els1923067r
Abdennour Alimohad, M. Rezki
{"title":"Contribution to Time and Frequency Analysis of Irregular Sleep Snoring","authors":"Abdennour Alimohad, M. Rezki","doi":"10.7251/els1923067r","DOIUrl":"https://doi.org/10.7251/els1923067r","url":null,"abstract":"The purpose of this paper is to give a summary analysis of human snoring and its episodes. In particular, we consider an acute snoring. In order to extract some frequency information of snoring signal, we apply the Fast Fourier Transform (FFT), Short Time Fourier Transform (STFT) algorithms, Discrete Wavelet Technique, and Power Spectral Density (PSD). Once irregular snoring characterized, we use a Voice Activity Detection (VAD) for snoring episode detection. Furthermore, we give comparative study of three types of thresholds that can control the VAD approach, a fixed threshold, a soft threshold, and a Gaussian threshold. Next, we use a Perceptual Evaluation of Speech Quality (PESQ) method to evaluate the efficiency of the VAD. We find that VAD based on Gaussian threshold is better.","PeriodicalId":290965,"journal":{"name":"Electronics ETF","volume":"401 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122784774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electronics ETFPub Date : 2019-07-08DOI: 10.7251/els1923075k
Zellouma Laid, Khechiba Kamel, Benaissa Amar
{"title":"PI Regulator with Tracking Anti-Windup Based Modified Power Balance Theory for SAPF under Unbalanced Grid Voltage Unbalance Non Linear Loads","authors":"Zellouma Laid, Khechiba Kamel, Benaissa Amar","doi":"10.7251/els1923075k","DOIUrl":"https://doi.org/10.7251/els1923075k","url":null,"abstract":"This paper presents a modified power balance theory for extracting the reference compensating currents to shunt active power filter (SAPF) which is applied to illuminate current harmonics and compensate reactive power under unbalanced voltages and unbalancing Nonlinear loads. A new method has been proposed based proportional-integrator (PI) controller with tracking anti-windup protection is presented. The power balance theory is used to establish suitable current reference signals. The studied is carried out with Matlab/Simulink and power system tools to verify the performance of the proposed technique. The filtering method of the SAPF can achieve the THD% limit specified by the IEEE-519 standard.","PeriodicalId":290965,"journal":{"name":"Electronics ETF","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115151950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electronics ETFPub Date : 2019-07-08DOI: 10.7251/els1923052a
Rekib Uddin Ahmed, Eklare Akshay Vijaykumar, P. Saha
{"title":"Single-Stage Operational Transconductance Amplifier Design in UTBSOI Technology Based on gm/Id Methodology","authors":"Rekib Uddin Ahmed, Eklare Akshay Vijaykumar, P. Saha","doi":"10.7251/els1923052a","DOIUrl":"https://doi.org/10.7251/els1923052a","url":null,"abstract":"The downscaling of complementary metal-oxidesemiconductor (CMOS) technology is approaching its limits imposed by short-channel effects (SCE), thereby multi-gate MOSFETs have been proposed to extend the scalability. Ultrathin-body silicon-on-insulator (UTBSOI) transistor is one of the dual-gated devices which offers better immunity towards SCEs. In this paper, two designs have been proposed for single-stage operational transconductance amplifiers (OTA) using the CMOS and UTBSOI. The CMOS based OTA (CMOS-OTA) has been designed where sizing (W/L) of the constituting MOSFETs have been evaluated through gm/Id methodology and the same OTA topology has been simulated using UTBSOI (UTBSOI-OTA) considering the same W/L. The DC simulation is carried out over the BSIM3v3 model to store the operating point parameters in the form of graphical models. The mathematical expressions for performance specifications have been applied over the graphical models to evaluate the required W/L. Individual comparisons between the two proposed designs have also been carried out for further applications. Based on simulation results at the schematic level, the UTBSOI-OTA has higher DC gain of 33.26% and lesser power consumption of 2.81% over the CMOS-OTA. Moreover, comparative analysis of performance parameters like DC gain and common-mode rejection ratio (CMRR), have been compared with the best-reported paper so far. In addition to this, the UTBSOI-OTA has been applied to practical integrator circuits for further verification.","PeriodicalId":290965,"journal":{"name":"Electronics ETF","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128198280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electronics ETFPub Date : 2018-08-27DOI: 10.7251/els1822027k
C. Kalaiselvi, S. Palaniammal
{"title":"An Intelligent Hybrid Protocol for Effective Load Balancing and Energy Efficient Routing for MANETs","authors":"C. Kalaiselvi, S. Palaniammal","doi":"10.7251/els1822027k","DOIUrl":"https://doi.org/10.7251/els1822027k","url":null,"abstract":"MANET (Mobile ad hoc network) is an autonomous decentralised network. And it is a collection of wireless mobile nodes that dynamically form a temporary network without the reliance of any infrastructure or central administration. Routing is a challenging task in manet. When the size and complexity increases the important challenge in manet is to avoid congestion with effective load balancing and improve energy, QoS parameters inside the network. In this work we propose a new hybrid protocol by combining ACO and Predator prey (LV) model which known as ACRRCC (Ant colony based rate regulating congestion control) method, which works efficiently in two phases. The efficient and optimal routing strategy is done by phase I using ant colony optimization. In phase II the congestion is majorly controlled by employing a mathematical model named predator-prey model which regulates the rate of the traffic flow in the network path. Performance of our proposed hybrid model ACRRCC yields good results under simulation study when compared with simple ACO.","PeriodicalId":290965,"journal":{"name":"Electronics ETF","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128493495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electronics ETFPub Date : 2018-08-27DOI: 10.7251/ELS1822019P
Deepthi Pilakkat, S. Kanthalakshmi
{"title":"Drift Free Variable Step Size Perturb and Observe MPPT Algorithm for Photovoltaic Systems Under Rapidly Increasing Insolation","authors":"Deepthi Pilakkat, S. Kanthalakshmi","doi":"10.7251/ELS1822019P","DOIUrl":"https://doi.org/10.7251/ELS1822019P","url":null,"abstract":"The characteristic of a Photovoltaic (PV) panel is most affected by the incident solar insolation temperature, shading, and array configuration. Maximum power point tracking (MPPT) algorithms have an important role in harvesting maximum power from the solar PV arrays. Among the various MPPT methods Perturb and Observe (P&O) algorithm is the simple and efficient one. However, there will be a drift problem in case of increase in insolation. This drift will be more under rapid increase in insolation. To improve the speed of tracking the Maximum Power Point (MPP), a variable step size P&O (VSSPO) is developed. The drift problem will be more in the case of VSSPO as it will have a larger step size for an increase in insolation. In this paper, the maximum output power extraction from Solar PV under rapidly increasing insolation conditions by a drift free P&O (DFP&O) as well as drift free VSSPO (DFVSSPO) method is presented.","PeriodicalId":290965,"journal":{"name":"Electronics ETF","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131041218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electronics ETFPub Date : 2018-08-27DOI: 10.7251/els1822003k
Akhtar Kalam, A. R, G. Kanagachidambaresan
{"title":"Guest Editorial - Special Issue on Recent Advances in Power Electronics and Internet of Things","authors":"Akhtar Kalam, A. R, G. Kanagachidambaresan","doi":"10.7251/els1822003k","DOIUrl":"https://doi.org/10.7251/els1822003k","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":290965,"journal":{"name":"Electronics ETF","volume":"191 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121025564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electronics ETFPub Date : 2018-08-27DOI: 10.7251/els1822012r
K. Ramesh, R. Ganesh, Sri Lakshmi Vineela Reddy, K. Mahalakshmi, S. Suganya
{"title":"An Enhanced Incremental Conductance Algorithm for Photovoltaic System","authors":"K. Ramesh, R. Ganesh, Sri Lakshmi Vineela Reddy, K. Mahalakshmi, S. Suganya","doi":"10.7251/els1822012r","DOIUrl":"https://doi.org/10.7251/els1822012r","url":null,"abstract":"The energy obtained from the photovoltaic array is dependent on the available solar insolation, the panel tilt angle and the power point tracking algorithm of the system. Some of the Conventional MPPT methods are developed by considering uniform solar irradiance. During partial shading conditions, solar panel may produce multiple Local Maximum Power Points (LMPPs) in its power voltage characteristic curve. A new algorithm has been developed in this paper by using sequential sampling embedded with existing incremental conductance procedure in order to predict the Global Maximum Power Point (GMPP). The tracking capability of proposed algorithm is verified with simulation works carried out in MATLAB/SIMULINK. The results of proposed algorithm are likened with the results classical Perturb and Observe (P&O) and Incremental Conductance algorithms.","PeriodicalId":290965,"journal":{"name":"Electronics ETF","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124375861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electronics ETFPub Date : 2018-08-27DOI: 10.7251/els1822048v
V. K., Sarat Kumar Sahoo
{"title":"A Collaborative Framework for Avoiding Interference Between Zigbee and WiFi for Effective Smart Metering Applications","authors":"V. K., Sarat Kumar Sahoo","doi":"10.7251/els1822048v","DOIUrl":"https://doi.org/10.7251/els1822048v","url":null,"abstract":"Energy management is one of the foremost priorities of research in many countries across the world. The introduction of modern information and communication technologies (ICT) are transforming the existing power grid, towards a more distributed and flexible “Smart Grid” (SG). The wireless sensor networks (WSN) are considered for data communication and are generally, incorporated with actuators to implement the control actions remotely. The wireless technologies like ZigBee (for automation), WiFi (for internet) and Bluetooth (entertainment) work in the 2.4GHz band. The coexistence of different wireless technologies working in the common area is unavoidable. Hence, this phenomenon degrades the performance of each other, due to the interference phenomenon. The wireless nodes with high energy had a great influence on the performance of the nodes working with low energy. Under the influence of interference, the low-power nodes experience the uncertain sleep-wake scheduling and increased delays in channel occupation. Interference also results in, high packet error rates (PER), decreased throughput, and high energy consumption. Hence for overcoming the above problems, A collaborative framework for an effective interference management and its avoidance is proposed in this paper. The framework proposed assures the effective ZigBee communication by systematic channel scheduling operating even under the influence of Wi-Fi. The work proposed performs better even under extreme interference conditions and the results obtained shows enriched performance.","PeriodicalId":290965,"journal":{"name":"Electronics ETF","volume":"310 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115913177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electronics ETFPub Date : 2018-08-27DOI: 10.7251/els1822034b
Sayantani Basu, S. A. Kumar, Bhuvana Shanmugam
{"title":"Epilepsy Detecting and Halting Mechanism Using Wireless Sensor Networks","authors":"Sayantani Basu, S. A. Kumar, Bhuvana Shanmugam","doi":"10.7251/els1822034b","DOIUrl":"https://doi.org/10.7251/els1822034b","url":null,"abstract":"Epilepsy is a condition that affects thousands of people worldwide. In the laboratory setting, it becomes difficult to monitor patients and analyze when the next seizure would recur. Although algorithms have been proposed for deriving when the next seizure is probable, it is difficult to generalize such models for the various types of epilepsy that are occurring every day. A more promising solution is the use of Wireless Sensor Networks (WSNs) that is proposed to simulate small electrodes used in EEG that will be placed on the scalp of the patient as a wearable device along with a portable kit that is capable of monitoring the patient in both ambulatory and resting condition. As much as a detection system is required for epilepsy, a halting mechanism is also needed to prevent such high flow of bio-electrical signals in the brain during seizures. It is estimated that millions of brain cells die during epileptic seizures, which can prove detrimental or even fatal in some cases. In order to overcome this, an IoTbased epilepsy detection and halting system with wireless sensor networks and focal cooling mechanism has been proposed in order to regionally cool the regions of the brain when a seizure is probable or suddenly occurs.","PeriodicalId":290965,"journal":{"name":"Electronics ETF","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132730133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}