We utilize a superconducting stripline resonator containing a dc-SQUID as a strong intermodulation amplifier exhibiting a signal gain of 24 dB and a phase modulation of 30 dB. Studying the system response in the time domain near the intermodulation amplification threshold reveals a unique noise-induced spikes behavior. We account for this response qualitatively via solving numerically the equat...

The abstract should include: what you are doing; why you are doing it; how you did it (designed using some tool); what are the main results (numbers: at what frequency, what gain, what ripple, ...) and finally what the main contribution and/or conclusion is. Be specific. For example: Abstract—This paper describes the design, implementation and characterization of a high-efficiency 10-GHzThis pa...

An instrumentation unit that measures heat flow along the test column of solid metal samples is described. The study also describes design a datalogger using Arduino Mega Microcontroller. designed incorporates current and voltage sensing unit, ten thermocouple sensors amplifiers, microSD card shield, two LCDs, four microcontrolled switching relays 12 V DC water pump motor. parameters measured b...

The class-E amplifier [1]-[11] is remarked as the next candidate of digital wireless power transmitters. Non-switching power amplifiers suffer from low power-conversion efficiency due to their inherent power loss in high back off area. Hence, switching power amplifiers such as class-D and E are remarked as a remedy for improving power-conversion efficiency and prolonging battery lifetime of por...

MOSFET is the most commonly used devices in DC-DC power converters, and its performance is important to the prognosis and health management of power. The paper proposes a degradation analysis model for MOSFET in DC-DC power converters. A method for detecting the degradation of MOSFET is also introduced. Simulations have shown that the method can predict deterioration in the performance of MOSFE...

With the dramatic increase in the number of transistors on a chip and the increasing needs for battery-powered applications, low-voltage circuit design techniques have been widely studied in recent year. However, these low supply voltage research efforts have been focused mainly on digital circuits, especially on high density memory circuits. Reported success in achieved high performance low vo...

A novel topology based on linear power amplifiers (PAs) and real-time sinusoidal voltage-adjustment supply systems (RTSPSs) for a permanent magnet synchronous motor (PMSM) drive system is proposed in this article. Here, PAs are applied to achieve high-precision control minimize the torque ripple harmonic loss caused by nonlinearities of inverter traditional space vector pulsewidth modulation. M...

The thermoelectric transfer difference of Thermal Converters (TCs) can be evaluated in both current mode and voltage mode, using a fast-reversed dc (FRDC) source. Some types of TCs show differences in the thermoelectric transfer difference between voltage and current mode as large as some parts in 10. In order to investigate the origin of the discrepancy, the change of the thermoelectric transf...