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This report studies the influence of printed circuit board (PCB) design on voltage overshoot and ringing oscillation in switching operation of gallium nitride gate injection transistor (GaN-GIT) for high-frequency DC-DC converter. The parasitic inductances in the main power loop have been identified based on moment of method (MoM) analysis and frequency characteristics of impedance measured with 2-port...
In this paper, we present a MOSFET-based Colpitts oscillator based on a “zero-threshold” transistor operating at a supply voltage below 20 mV. The circuit was carefully analyzed and expressions relating the start-up conditions and the voltage supply, as well as the oscillation frequency were developed. Measurement results obtained on a discrete prototype confirmed the low-voltage operation of the...
The next generation of wireless communication is a ubiquitous radio system concept, providing wireless access from short-range to wide-area, with one single reconfigurable and adaptive system for all envisaged radio environments. This paper presents the design approach of RCO (reconfigurable concurrent oscillator) that simultaneously generates two or more signals of different frequencies that eliminate...
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