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A simple circuit technique to realise a floating inductance simulator for system response compensation is presented in this paper. The circuit implementation is based on the use of the operational transconductance amplifiers (OTAs) as active elements. The proposed circuit converts a grounded capacitance into a floating inductance with electronically variable properties. The proposed inductor is attractive...
An on-chip buck converter with 3D chip stacking is proposed and the operation is experimentally verified. The manufactured converter achieves a maximum power efficiency of 62% for an output current of 70mA with a switching frequency of 200MHz and a 2x2mm on-chip LC output filter in 0.35mum CMOS. The use of glass epoxy interposer to increase the maximum power efficiency up to 71.3%, and the power efficiency...
In magnetically-controlled electronic ballasts, in order to perform the lamp start and dimming, the typical resonant inductor is substituted by a variable inductor. This variable inductor is controlled by a dc current, which modifies the resonant tank in order to vary the rms value of the lamp current and thereby the luminous output. In order to perform optimization studies, computational models,...
This paper is concerned with the design and simulation of a pulse width modulation (PWM) rectifier for three-phase Permanent Magnetic motor drive. Based on the mathematical model of PWM rectifier, the dual-close-loop engineering design with decoupled feed-forward control is applied in the 3-phase voltage source rectifier. The objective to be reached is to realize unity power factor at the input ac...
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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