A new output structure for class E power amplifier (PA) is proposed in this paper. A series LC resonator circuit, tuned near the second harmonic of the operating frequency is added to the output circuit. This resonator causes low impedance at the second harmonic. The output circuit is designed to shape the switch voltage of the class E amplifier and lower the voltage stress of the transistor. T...

Wey, Todd, Alan. Ph.D., Purdue University, December 1995. On Nonlinear Circuit Components with N-Shaped Conductance Characteristics. Major ProGssor: Lawrence L. Ogborn. Currently, three-terminal devices with N-shaped I-V characteristics are being fabricated for switching and multi-valued logic applications. The purpose of this study is to investigate switching speed improvements and potential p...

QPSX [1,16,21], a Queued Packet and Synchronous circuit eXchange, is a Metropolitan Area Network (MAN) proposed standard with IEEE 802.6. It is developed by QPSX Communications Pty. Ltd. and sponsored by Telecom Australia. QPSX is · a distributed broad-band, movable boundary [10] type communications switch, that provides integrated packet and circuit switching. Its capacity is dynamically alloc...

Network redimensioning (medium term planning) means to determine volume of telecommunication resources, necessary to serve given traffic offered taking into account the prescribe Quality of services (QoS). Two different network redimensioning methods are considered in this paper. The aim of the research is comparison between network redimensioning method, using ITU E.600 traffic offered definit...

atm switching systems are required to maintain ordering for cells within a given virtual circuit This is most commonly achieved using a switching system in which cells in a given virtual circuit are routed along a common path through the switch ing system This solution has the drawback that it can lead to signi cant virtual circuit blocking unless the switching network is engineered with a larg...

Circuit Breaker is one of the most critical elements of power industry. Controlled Switching of grid voltage and grid current is the best solution to prevent the high inrush current and over voltages. This paper describes the Controlled Switching of Circuit Breaker by using multiprocessor based architecture. With this architecture early detection of most of major fault is feasible; it is also p...

Stochastic dynamics of chemical reactions in a mutually repressing two-gene circuit is numerically simulated. The circuit has a rich variety of different states when the kinetic change of DNA status is slow. The stochastic switching transition between those states are compared with the theoretical estimation of the switching rate derived from the idea similar to the transition state theory. Eve...

A full-bridge CLLL DC/DC converter that uses an auxiliary circuit is proposed in this paper. The soft switching of lagging leg and auxiliary switches is achieved by the proposed circuit for providing reduced switching losses and high efficiency. The theoretical detail operation of the converter is presented. The proposed converter is verified using MATLAB simulation. Closed loop and open loop c...

Given a set of request pairs in a network, the problem of routing virtual circuits with low congestion is to connect each pair by a path so that few paths use the same link in the network. We build on an earlier multicommodity ow based approach of Leighton & Rao to show that \short" ow-paths lead to path-selections with \low" congestion. This shows that such good path-selections exist for const...