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The system of one or several quantum wells embedded in a planar semiconductor Fabry-Perot microcavity with distributed Bragg reflectors is studied in the framework of both a semiclassical and a full quantum theory. The results obtained with the two treatme ...
In many applications, industry has tried to develop sinusoidal supply for brushless DC (BLDC) motors. This paper describes a method that still keeps a simple 2 phases-on sensorless method and achieves sinusoidal supply, which is needed to avoid speed oscil ...
The parasitic oscillation of the TE21-degrees gyrotron backward wave (gyro BW) mode is observed in a low-Q, 8 GHz TE011-degrees gyrotron. Although at low power (P(BW) < 5 kW), the oscillation of the gyro BW mode, simultaneously with the gyrotron mode, resu ...
A new fully integrated two-stage operational transconductance amplifier-capacitor (OTA-C) sine oscillator circuit configuration using a 0.5 μm CMOS digital process is described. A simple linear impedance analysis is presented to predict the amplitude and d ...
