In this thesis, the optical characteristics of all-active microring resonators as lasers are studied. The structure of a semiconductor microring laser coupled to a bus waveguide is investigated. The scope of the study is to examine the microring’s laser operation and also emphasize the influence of the key design parameters on single mode and/or unidirectional operation, both being of major con...

To implement quick and reliable communication between CAN bus network and computer, we propose a sort of design method of CAN bus network adapter based on CH372, and mainly introduce the concrete implementations of hardware circuit and software program in this article. This system adopts the modularization design, and a new USB interface chip CH372 is adopted in the USB communication module, wh...

In high frequency transit services, bus regularity i.e. the headway adherence between buses at bus stops can be used as an indication of service quality, in terms of reliability, by both users and transit agencies. The Web portal is the entry point of a Decision Support System (DSS), contains an environment designed for experts in transport domain. The environment is composed of tools developed...

In this paper we study the particle transport and deposition in a turbulent square duct flow with an imposed magnetic field using Direct Numerical Simulations (DNS) of the continuous flow. A magnetic field induces a current and the interaction of this current with the magnetic field generates a Lorentz force which brakes the flow and modifies the flow structure. A second-order accurate finite v...

<p>Due to the high demand of grid connected photovoltaic systems, there is a need track maximum power point PV system. As output system dc, should be converter, acting as medium between and dc bus capacitor at all loads. Usually boost converter link duty cycle insulated-gate bipolar transistor in 0 1 for loads during tracking (MPPT). To make stable, balance bus. If voltage constant, will ...

A novel ultra-high compliance, low power, very accurate and high output impedance current output stage (COS) with extremely high output current drive capability is proposed in this paper. The principle of operation of this unique structure is discussed, its most important formulas are derived and its outstanding performance is verified by HSPICE simulation in TSMC 0.18µm CMOS, BSIM3, and Level4...

This paper proposes a new algorithm for detecting faults in an electrical power transmission system, using discrete wavelet transform (DWT) and probabilistic neural network (PNN). Fault conditions are simulated using ATP/EMTP to obtain current signals. The algorithm used to analyze fault locations is developed on MATLAB. Fault detection is processed using the positive sequence current signals. ...

In the CMOS circuit power dissipation is a major concern for VLSI functional units. With shrinking feature size, increased frequency and power dissipation on the data bus have become the most important factor compared to other parts of the functional units. One of the most important functional units in any processor is the Multiply-Accumulator unit (MAC). The current work focuses on the develop...

Abstract Power system faults can often result in excessively high currents. If sustained for a long time, such currents damage equipment. Thus, it is desirable to operate the relays minimum possible time. In this paper, busbar splitting approach used adaptive relay setting and co-ordination purposes integrity protection scheme (SIPS). Whenever fault occurs, splits bus convert loop into radial s...

Network on-chip (NoC) is a novel structural design template, which can be defied for complicated system level on-chip design. NoC has a potential to limit and present the bus-based communication. In this paper, the crisis to discuss is Low power consumption in an Asynchronous Network on-chip (NoC) level communication. NoC is implemented using FPGA which has less fabrication cost and reduces the...