using photovoltaic systems is gradually expanded by increasing energy demand. abundance and availability of this energy, has turned to one of the most important sources of renewable energy. unfortunately, photovoltaic systems have two big problems: first, those have very low energy conversion efficiency (in act between 12 and 42 percent under certain circumstances). second, the power produced b...

this paper presents a grid connected photovoltaic system, which acts as both power generator and active power filter (apf), based on flying capacitor multicell (fcm) converter. increase in the number of output voltage levels, natural self-balancing of flying capacitors and dc link voltage and lower power rating of components are the main futures of fcm converter compared with conventional multi...

The point-to-point multiple-antenna channel is investigated in uncorrelated block fading environment with Rayleigh distribution. The maximum throughput and maximum expected-rate of this channel are derived under the assumption that the transmitter is oblivious to the channel state information (CSI), however, the receiver has perfect CSI. First, we prove that in multiple-input single-output (MIS...

Computer and telecommunication systems tend to demand lower supply voltages than 3.3V. This fact raises the challenge of obtaining high efficiency DC/DC converters with low output voltage. We have implemented a compact converter with an output voltage of 1.5V. The output power is 5W and the converter has been provided with galvanic isolation between input and output sides. The windings of the m...

In this paper, we introduce a general method for obtaining more flexible new distributions by compounding the extended Weibull and power series distributions on a latent complementary risk problem base. The properties of the proposed class are discussed, including a formal proof of an expension for its density function and explicit formulae for its hazard rate function, quantiles, ordinary and ...

This project proposes delay efficient architecture for shift registers by using pulsed latches instead of flip flops. By using latches instead of flip-flops the major factors area and power can be reduced. By considering the necessary delays in pulses for latches the timing problem latches can be reduced. For obtaining these delays counter has to incremented by 1. The proposed kogge stone adder...

Photovoltaics (PV) are the most abundant, perennial, environment friendly and distributed source of energy all over the globe. In this paper, the method to increase PV extraction efficiency for 60W panel with improved DMPP (Distributed Maximum Power Point) even on changing temperature and irradiance have been mapped and discussed. In order to achieve this, the components and subsystems have bee...

This work presents a first approach towards the development of a cost-effective enzymatic paper-based glucose/O2 microfluidic fuel cell in which fluid transport is based on capillary action. A first fuel cell configuration consists of a Y-shaped paper device with the fuel and the oxidant flowing in parallel over carbon paper electrodes modified with bioelectrocatalytic enzymes. The anode consis...