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A 10-Gb/s transimpedance amplifier (TIA) for the parallel optical receiver module is realized in 0.18-μm CMOS technology. The proposed TIA employs a regulated cascode (RGC) input structure and adopts active inductor peaking and feedback techniques to enhance the bandwidth. Besides, a noise optimization is processed. The TIA provides a conversion gain of 50 dBΩ and 3-dB bandwith of 7 GHz. The measured...
Degradation of phenol by an electrochemical heterogeneous catalytic process was applied in packed bed electrolytic reactor with graphite electrode. The catalyst was characterized by SEM and the effects of pH, the applied potential and Na2SO4 on the efficiency of the electrochemical oxidation phenol process were also studied. It was found that the optimal condition was an applied potential of 25V,...
A novel inductor model, which considers the magnetic and capacitive substrate coupling comprehensively, and a new fast approach for substrate network parameter extraction are presented in this paper. The introduction of substrate parasitic inductance (SPI) and the mutual inductance is based on the resonance characteristic of the measured substrate's Y-parameter and their physical meaning. A series...
A wideband noise-cancelling low-noise amplifier (LNA) without the use of inductors is designed for low-voltage and low-power applications. Based on the common-gate-common-source (CG-CS) topology, a new approach employing local negative feedback is introduced between the parallel CG and CS stages. The moderate gain at the source of the cascode transistor in the CS stage is utilized to boost the transconductance...
A novel bi-directional buck-boost converter used for battery charging and discharging cooperated with a three-level half bridge inverter in a UPS is proposed. The operation of charging and discharging can be controlled respectively, and the capacitor voltage balance can be achieved based on the peak current control. The operating principle and parameter design of the converter are analyzed in detail...
We present a novel methodology to extract model parameters from measured S-parameter for silicon on-chip center-tapped differential spiral inductor. The double-pi equivalent circuit topology is employed in which conductor skin effect is considered. The extraction procedure based on Modified Differential Evolution is demonstrated to be efficient and effective. The excellent accuracy of the results...
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