Low-power dichroic halogen lamps, usually used for display lighting, have low-voltage filament. The lightweight electronic transformer (ET), based on self-oscillating half-bridge high frequency inverter, are used to replace bulky and heavy conventional 50160 Hz step-down transformer. But their lamp current are rectangular like shape, leading to generate high electromagnetic noise and increase t...

A new topology of a hybrid distributed generator based on photovoltaic and wind-driven permanent magnet synchronous generator is proposed. In this generator, the sources are together connected to the grid with the help of only a single boost converter followed by an inverter. Thus, compared to earlier schemes, the proposed scheme has fewer power converters. Model of the proposed scheme in d-q a...

This paper discusses the design of a compensator for the buck DC switching converter. Three different compensators are designed and analyzed based on phase and gain margins. Op-amp implementations for each compensator are derived and tested with an example converter. The performance of the converters is examined based on transient response and rejection of steady-state error due to a step chang...

Determining quality for web applications requires an orientation beyond traditional quality models. Researchers have pointed to usability as a key component of web application quality. Usability is not a new quality characteristic. What is new is that it is a key success factor for web applications. For conventional software applications, usability may be a ‘nice to have’, but for web applicati...

Limited and nonlimited emissions of scooters were analysed during several annual research programs of the Swiss Agency of Environment Forests and Landscape (SAEFL, BUWAL)*. Small scooters, which are very much used in the congested centres of several cities are a remarkable source of air pollution. Therefore every effort to reduce the emissions is an important contribution to improve the air qua...

In this paper we investigate the performance and operation of a Learning Classifier System on problems with real-valued states and a Boolean action space. Specifically, we study aspects of the algorithm and parameter set of the simple strength-based Learning Classifier System used, ZCS. Increased performance is found to result from the use of an update algorithm based on that of NewBoole, an ea...

Based on Generalized switchingcell approach, a generalized state-plane analysis for families of soft-switching dc-to-dc converters will be presented. It is shown the analysis of soft-switching dc-to-dc converter families can be analyzed in terms of simple two-dimensional state-plane diagram. Complete generalized design equations will also be given. It will be shown that one generalized transfor...

Fujikura has achieved an output power of 30 W from a Q-switched pulsed fiber laser with a pulse width about 100 ns for the first time in the world. Following the achievement, we commercialized a 70 W output pulsed fiber laser . In the article, we describe our activities on high-power pulsed fiber lasers, and introduce our 70 W output products. Fujikura’s advanced and original functions of pulse...

Analog designers rely on datasheets provided by component manufacturers to define the specification of their circuit design. Although datasheets include the specifications of individual components and remain an indispensable resource for the designer, yet they lack some information of how parts will behave within different design configurations. This is why circuit simulation is a good compleme...