Problem statement: The Low Noise Amplifier (LNA) is a core block of an Ultra Wide Band (UWB) receiver since it amplifies a very weak signal received at the antenna to acceptable levels while introducing less self-generated noise and distortions. The LNA design poses a unique challenge as it requires simultaneous optimization of various performance parameters like power gain, input matching, noi...

In this paper proposes the design and implementation of a stage voltage converter for use in feed a group of high brightness LEDs (HBLEDs). The use of this lighting technology has been developed en recent years. Currently, theses LEDs have high competitiveness in the market despite its high cost, due to its high energy efficiency. This objective must be performed by the voltage conversion stage...

Designing private voting rules is an important and pressing problem for trustworthy democracy. In this paper, under the framework of differential privacy, we propose a novel famliy randomized based on well-known Condorcet method, focus three classes in family: Laplacian method (CMLAP), exponential (CMEXP), response (CMRR), where λ represents level noise. We prove that all our satisfy absolute m...

A new, compact UCLH Mk 2.5 EIT system has been developed and calibrated for EIT imaging of the head. Improvements include increased input and output impedances, increased bandwidth and improved CMRR (80 dB) and linearity over frequencies and load (0.2% on a single channel, +/-0.7% on a saline tank over 20 Hz-256 kHz and 10-65 Omega). The accuracy of the system is sufficient to image severe acut...

In this article, a nonisolated three-port dc-dc converter with high voltage conversion ratio is proposed. the proposed converter, by changing place of input source between each three ports, different single-input two-output operation modes are achieved. The current ripple eliminated at low side for whole range duty cycles. ratios can be increased increasing turns second winding coupled inductor...

A new design technique employing CMOS Current Feedback Operational Amplifier (CFOA) is presented. This design approach applies CFA OTA as input stage cascaded with class AB cross-coupled buffer stage. The performance parameters of CMOS CFOA such as bandwidth, slew rate, settling time are extensively improved compared with conventional CFOA. These parameters are very important in high frequency ...

LNA with Current Reuse and Zero-Pole Cancellation Chunbao Ding, Wanrong Zhang, Dongyue Jin, Hongyun Xie, Pei Shen, Liang Chen, School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China Abstract—A low power cascode SiGe BiCMOS low noise amplifier (LNA) with current reuse and zero-pole cancellation is presented for ultra-wideband (UWB) appli...

In this paper, a new single-stage, single-switch input-current-shaping (SICS) technique which features substantially reduced turn-on switching loss of the switch in a SICS flyback topology is described. In the proposed technique, the turn-on switching loss due to the discharging of the output capacitance of the switch is reduced by turning on the switch when its voltage is minimum. To achieve t...