Direct current

Abstract— The Z-Source Inverter (ZSI) overcomes the disadvantages of the traditional Voltage-Source Inverter (VSI) and Current-Source Inverter (CSI), it can buck and boost its output voltage by utilizing the shoot-through state which is forbidden in traditional VSI. Different PWM techniques are available for the control of Z-Source Inverters. In the traditional PWM technique equal shoot-through time interval is considered for the three phase legs. Hence, the realization of the shoot-through state

“You need to go one step ahead” a constant thought that incited me to aim/experience/ go for/ take up higher education. Right from the school days the experiences, knowledge and the learnings have strongly reinforced my career goals. “Growth is the most important career goal that a person must look into” I believe. Hence in order to unceasingly grow in my line of work and to serve the society in best possible way, I desire to pursue my graduate education in electrical. The fact that there are so

interest developed in inventions and transformations. Technological innovations have led enormous changes in world and lifestyles. Recent developments in the world have changed the way of generating and using electrical power. I am satisfied with the current opportunities and with my profession. I am looking forward to work in a

Senbaru, Nishihara-cho, Nakagami, Okinawa 903-0213, Japan Received 24 July 2000; accepted 9 January 2001 Abstract An extensive small-signal analysis of a voltage-mode controlled interleaved dual boost (IDB) converter operating in continuous current mode based on signal flow graph approach is proposed. Small-signal flow graph is developed, from which open-loop small-signal transfer functions are derived

Because each insert contained a different amount of fibers, the fiber mass at each time point was converted to a percentage of the original fiber mass. As expected, the data shows a decrease in fiber mass for both scissor cut inserts and laser cut inserts. Overall, the scissor cut inserts had a greater loss than the inserts cut by the laser. Laser cutting had the greatest effected on the adhesion of polystyrene to a polystyrene base. Polystyrene fibers were light and thin and often gets attracted

Flexible nanodielectric materials with a high dielectric constant and low dielectric loss have immense potential applications in the modern electronic and electric industry. The use of high aspect ratio fillers is a promising route for achieving high dielectric constant and low loss materials at a low filler volume fraction. However, the poor filler/matrix interfacial adhesion always imposes difficulties in suppressing the dielectric loss of the composites, thus significantly limiting the potential

available in literature to modify SLM. A scheme is proposed for removing SI in SLM where phase sequence could be easily decoded at the receiver after a level is inserted with each candidate as an identifier tag and scrambling is used to avoid any direct manipulation of SI at the receiver. Here only a small amount of redundancy increases the cost of hardware implementation. In this scheme removal of SI is not proposed, only representation is changed. A magnitude scaled-SLM method is proposed, where

2.8 CA3130 Op-Amp CA3130A and CA3130 are op-amp that combine the advantage of both CMOS and bipolar transistors. Gate-protected P-channel MOSFET transistor are used in the input circuit to provide very high-input impedance, very low input current and exceptional speed performance. The use of P,OS transistor in the input stage results in common mode input voltage capability down to 0.5V below the negative supply terminal, an important attribute in single-supply application. The CA3130 series circuit

Pseudo DC link based multi-stage inverter topology is proposed in [26], shown in fig.6, in which DC link is replaced with a pseudo-DC link shown in fig.3(b). As dc link is eliminated in this topology leads to lesser cost, size and volume compared to previous topologies and almost same reliability compared to the previous topology. However, this topology is suffering from poor power decoupling and more harmonic content compared to previous topologies. Common remarks on DC–AC–DC–AC Topologies: Topologies

Transcranial Direct Current Stimulation (tDCS) “is a neuromodulatory technique that sends low-intensity, direct current to cortical areas, facilitating or inhibiting spontaneous neuronal activity” (Brunoni, et al., 2012). Transcranial Direct Current Stimulation is a new intervention, which has received a substantial amount of attention over the past decade, and the main goal of tDCS is to modulate cortical excitability. This form of non-invasive brain stimulation has been used with patients with