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A novel compact model using pole-residue method for ultra-broadband on-chip transformer is presented. This model possesses several paralleled branches for high-order effects of transformers, and it can be easily extracted using the procedure of vector fitting (VF) written in MATLAB. Meanwhile, the key features of the existing equivalent circuit models have been analyzed. The proposed model reaches...
This paper describes a comparative analysis between two topologies of operational amplifiers to design a 40 MS/s 12-bit pipeline analog to digital converter (ADC). The analysis includes AC and transient simulation to select the proper topology. This ADC is implemented in a 0.35 mum AMS CMOS technology with 3.3 V single power supply. The capacitors and selected operational amplifiers were scaled for...
A novel approach for performance estimation is described which gives the designer access to the design space boundaries of a circuit topology so that the tradeoff analysis of competing performances can be evaluated by optimum design points and Pareto curves with an acceptable execution time and transistor-level accuracy can be obtained. Recently, there is a strong emphasis on numerical techniques...
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...
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