Absfnzst-Static and dynamic properties of dispersive optical bistability (OB) in semiconductor lasers biased from below to above threshold has been investigated both theoretically and experimentally. The OB result is found to be varied continuously from below to above threshold; Although conventionally the OB switch-off time in dispersive semiconductor laser ampliers is limited by the effective...

This Application Note presents a SPICE-based method for thermal modeling, simulation and design of a multi-channel power semiconductor switch on a Printed Circuit Board (PCB). The method allows rapid and simultaneous determination of the temperature of semiconductor junctions and the PCB track below the device, both under transient conditions and at steady-state. The model takes thermal cross-c...

Inverters designed using reduced active semiconductor devices can be of interest to the industry because of their lower cost and enhanced reliability linked to their less complex gating and control circuitries. In this paper a four switch three phase b-4 topology for the grid connected application in an effort to reduce the cost of the inverter is investigated. Admittedly, this topology warrant...

This study presents the simulation, fabrication and characterization ofmicromechanical radio frequency (RF) switch with micro inductors. The inductors areemployed to enhance the characteristic of the RF switch. An equivalent circuit model isdeveloped to simulate the performance of the RF switch. The behaviors of themicromechanical RF switch are simulated by the finite element method software,Co...

The study investigates the design and fabrication of a micromachined radio frequency (RF) capacitive switch using the complementary metal oxide semiconductor-microelectromechanical system (CMOS-MEMS) technology. The structure of the micromachined switch is composed of a membrane, eight springs, four inductors, and coplanar waveguide (CPW) lines. In order to reduce the actuation voltage of the s...

This work introduces a new non-isolated buck-boost DC-DC converter. Interleaved configuration of the suggested structure increases the voltage conversion ratio. The voltage rate of the suggested converter can be stepped-up and stepped down for lower values of duty-cycle, which causes to decrease in the conduction losses of the system. The voltage conversion ratio of the recommended structure is...

This paper reviews the various optical space switch structures on III–V semiconductor material. Their characteristics are discussed in the context of optical transport and switching network applications exploiting wavelength division multiplexing.

The migration of Au atoms to fill the S vacancies in MoS 2 memristors increases electron injection rate and reduces contact resistance at metal–semiconductor interface, thus causing resistive switch.

We present the design of a novel, miniature ADR with no moving parts, which could be used to cool detectors for astrophysics research, semiconductor analysis, and mass spectrometry. The miniature ADR relies on the development of a magnetoresistive heat switch. We present measurements of the thermal conductivity of a single-crystal tungsten heat switch at temperatures below 4 K and magnetic fiel...

RF-MEMS technology has the potential of replacing many of the mechanical and semiconductor switches used in mobile and satellite communication systems. In many cases, such RF-MEMS switches would not only reduce substantially the size and power consumption, but also promise superior performance. The paper reviews the recent development of RF MEMS switches and switch matrices. Several configurati...