i-manager's Journal on Circuits and Systems (JCIR)


Volume 4 Issue 2 March - May 2016

Research Paper

Distribution Systems Reliability Analysis with Power Quality issues and Neutral Currents Compensation Mistreatment MLI-DSTATCOM

T. Rakesh* , V. Madhusudhan**, M. Sushama***
* Research Scholar, Department of Electrical and Electronics Engineering, Jawaharlal Nehru Technical University, Hyderabad, India.
** Principal & Dean, Kandula Obul Reddy Memorial College of Engineering, Kadapa, India.
** Professor, Department of Electrical and Electronics Engineering, Jawaharlal Nehru Technical University, Hyderabad, India.
Rakesh, T., Madhusudhan, V., and Sushama, M. (2016). Distribution Systems Reliability Analysis with Power Quality issues and Neutral Currents Compensation Mistreatment MLI-DSTATCOM. i-manager’s Journal on Circuits and Systems, 4(2), 1-16. https://doi.org/10.26634/jcir.4.2.8097

Abstract

The “Multilevel Converter” has a massive interest at intervals for the vigour programs enterprise. The fundamental constitution of the construction converter is to decompose a curving voltage from some stages of voltages. Construction voltage offer converters area unit manufacturing as a latest breed of energy converter choice for prime energy applications. These converter topologies will generate high-quality voltage waveforms with vigor semiconductor switches acting at a frequency shut. Among the three construction converter topologies, the five-level and 7-level construction convertors constitute a promising replacement, providing a standard style that will be extended to permit an electrical device-less affiliation. This paper offers a three-segment, five stages and 7 stages cascaded construction voltage supply electrical converter headquartered DSTATCOM for vigour line learning to create stronger vigour satisfactory at intervals of the distribution network. Eventually, a curving PWM (SPWM) procedure is adopted to look at the potency of MLI based DSTATCOM. The outcomes the area unit brought by suggests that of Mat science lab / Simulink application package deal.

Research Paper

An Optimized Low Power Self-Resetting Logic Design Approach

Shivani Kulshrestha* , Vikas Kumar Rai**
* PG Scholar, Department of Electronics and Communication Engineering, SIT, Mathura, U.P., India.
** Associate Professor, Department of Electronics and Communication Engineering, SIT, Mathura, U.P., India.
Kulshrestha, S., and Rai, V.K. (2016). An Optimized Low Power Self-Resetting Logic Design Approach. i-manager’s Journal on Circuits and Systems, 4(2), 17-21. https://doi.org/10.26634/jcir.4.2.8098

Abstract

This paper presents a new optimized technique to power reduction and performance improvement based on selfresetting logic. The concept of self-resetting logic uses the concept of resetting the output logic automatically after a certain time span. The proposed circuit eliminates the problems of SRLGDI logic proposed previously. SRLGDI was proven to be better than dynamic logic, CMOS self-resetting logic and GDI. Three designs of full adders were made using SRLGDI and a final proposed design was made using modified SRLGDI logic and compared to three SRLGDI designs to prove the performance improvement achieved using the modified SRLGDI logic.

Research Paper

Analysis of Carbon Nanotube Field-Effect Transistor

Bal Krishnan* , Sanjai Kumar Agarwal**, Sanjeev Kumar***
* Assistant Professor, Department of Electronics Engineering, YMCA University of Science and Technology, Faridabad, Haryana, India.
** Professor, Department of Electronics Engineering, YMCA University of Science and Technology, Faridabad, Haryana, India.
*** Director, DNS College of Engineering and Technology, Amroha, Uttar Pradesh, India.
Krishan, B.,Agarwal, S. K., and Kumar, S. (2016). Analysis of Carbon Nanotube Field-Effect Transistor. i-manager’s Journal on Circuits and Systems, 4(2), 22-29. https://doi.org/10.26634/jcir.4.2.8099

Abstract

This paper explores the insights of the most outstanding application of carbon nanotube in electronic field, the carbon nanotube field-effect transistor (CNFET). The motivation of research in CNFET is fuelled by the unique electrical features of CNT, especially the semiconducting feature. Besides, the continuous effort to find future nanoelectronic device that can perform as excellent as MOSFET also push the research of CNFET to be more aggressive. The first section gives an overview of the structure of CNFET followed by the explanation of CNFET operation as a switching device. The next section provides the comparison between CNFET and MOSFET. In this paper, a comparison is being made between conventional MOSFET and different types of CNFETs, and finally concluded a future replacement of MOSFET. The major difference in CNFETs and MOSFET is that it has CNT in channel instead of Silicon. CNFETs show improved characteristics with scaling of technology. CNFET bandgap is directly affected by its chirality and diameter, which is the biggest advantage over MOSFETs. The study of various types of CNFETs comparison has been made in this paper.

Research Paper

Multimode OTRA Based Semi-Gaussian Shaper

Varun Kumar Ahalawat* , V. Venkatesh Kumar**, Cherna Malhotra***, Neeta Pandey****, Rajeshwari Pandey*****
*-*** UG Scholar, Department of Electronics and Communication Engineering, Delhi Technological University, Shahbad, Daulatpur, Delhi, India.
****-***** Associate Professor, Department of Electronics and Communication Engineering, Delhi Technological University, Shahbad, Daulatpur, Delhi, India.
Ahalawat, V. K., Kumar, V. V., Malhotra,C., Pandey, N., and Pandey, R. (2016). Multimode OTRA Based Semi-Gaussian Shaper. i-manager’s Journal on Circuits and Systems, 4(2), 30-37. https://doi.org/10.26634/jcir.4.2.8100

Abstract

Operational Transresistance Amplifier (OTRA) is a Current Controlled Voltage Source (CCVS) characterized by low impedance, thereby producing circuits insensitive to stray capacitances. This paper presents an OTRA implementation of a multimode semi Gaussian (S-G) shaper that supports voltage and transimpedance modes of operation. A comparative study of performance indicators like Signal to Noise Ratio (SNR) and Total Harmonic Distortion (THD) is included. The results obtained from SPICE simulations using 0.5 μm CMOS technology model parameters depict a perfect Gaussian shaped output waveform that contributes towards decreasing Inter Symbol Interference (ISI) by overcoming irregularities during transmission of pulse in the channel.

Research Paper

OFCC Based Shadow Filter

Prashant Gola* , Prateek Tripathi**, Prateek Pahalwan***, Neeta Pandey****, Rajeshwari Pandey*****
*-*** UG Scholar, Department of Electronics and Communication Engineering, Delhi Technological University, Shahbad, Daulatpur, Delhi, India.
****-***** Associate Professor, Department of Electronics and Communication Engineering, Delhi Technological University, Shahbad, Daulatpur, Delhi, India.
Gola, P., Tripathi, P., Pahalwan, P., Pandey, N., and Pandey, R. (2016). OFCC Based Shadow Filter. i-manager’s Journal on Circuits and Systems, 4(2), 38-44. https://doi.org/10.26634/jcir.4.2.8101

Abstract

This paper proposes an Operational Floating Current Conveyor (OFCC) based shadow filter configuration. The operation of the filter is based on modifying filter performance parameters with the help of gain of active block. This flexibility makes it attractive in comparison to a design, where similar control is achieved by changing values of relatively larger number of components. The proposed filter uses four active blocks (OFCCs), two grounded capacitors, and four grounded resistors and helps achieve low pass controlled low pass, high pass and band pass response. The use of grounded passive components makes proposed configuration, attractive from integrated circuit realization viewpoint. The functionality of the proposed circuit is demonstrated through SPICE simulations using the 0.5 m CMOS process model of MOSIS (AGILENT). The proposed circuit can be readily used in today's multi-standard transceivers in the IF stage for the implementation of frequency agile filters, which offer higher configurability to the transceiver chain and the analog front-end towards various standards of the ever changing industry demands.