Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Luis H. C. Ferreira"'
Publikováno v:
IEEE Transactions on Automatic Control. 66:4807-4811
In this article, we presented guaranteed independent and uniform multivariable stability margins for the $\mathcal {H}_{\infty }$ /LTR control, both in continuous and discrete time. In previous works, it was shown that the $\mathcal {H}_{\infty }$ /L
Publikováno v:
IET Circuits, Devices & Systems. 13:920-927
This study presents a new technique based on large signal analysis, to enhance the total harmonic-distortion (THD) in an ultra-low-power operational transconductance amplifier (OTA). The proposed technique is used to implement an ultra-low-power gate
Publikováno v:
Circuits, Systems, and Signal Processing. 38:4369-4379
This short paper presents a new approach to the calculation of Savitzky–Golay differentiators based on symmetric differentiation. Some comparisons with the regular polynomial derivative are made in order to find differences and similarities between
Publikováno v:
IEEE Transactions on Very Large Scale Integration (VLSI) Systems. 27:316-325
A new solution for an ultralow-voltage bulk-driven (BD) asynchronous delta–sigma modulator is described in this paper. While implemented in a standard 0.18- $\mu \text{m}$ CMOS process from the Taiwan Semiconductor Manufacturing Company and supplie
Publikováno v:
Microelectronics Journal. 83:62-72
This paper presents a calibration-less inverter-based operational transconductance amplifier (OTA) built with intrinsically matched CMOS inverters, therefore, dispensing any kind of calibration circuit. In addition, the circuit is implemented in IBM
Autor:
Arnaldo del Risco Sanchez, Luis H. C. Ferreira, Nedson J. Maia, Robson L. Moreno, Tales Cleber Pimenta
Publikováno v:
ICM
This work proposes a new low power Operational Transconductance Amplifier (OTA) topology. The rejection to common-mode signals is achieved by adding parallel transistors to input MOS transistors in order to increase the Common Mode Rejection Ratio (C
Publikováno v:
SysCon
This paper presents a fault-tolerant controller applied to a system containing communication channels susceptible to data loss. The proposed approach is based on the Target Feedback LoopLoop Transfer Recover compensator, capable of dealing passively
Autor:
Paulo Cesar Crepaldi, Luis H. C. Ferreira, Arnaldo del Risco Sanchez, Robson L. Moreno, Tales Cleber Pimenta
Publikováno v:
LASCAS
A new solution for a fully differential bulk-driven Operational Transconductance Amplifier (OTA) for ultra-low-voltage applications is proposed herein. The amplifier eliminates the tail current source, performs a common-mode control and a transconduc
Publikováno v:
IEEE Transactions on Very Large Scale Integration (VLSI) Systems. 25:3455-3463
This paper presents a new inverter-based architecture that implements an asynchronous delta–sigma modulator. Different from the classical architecture, it features an input transconductor that promotes a differential and high input impedance that m
Publikováno v:
CCECE
Transfemoral amputee patients need appliances that help them in locomotion in order to have a better quality of life. Prosthetics have been developed with the implementation of some existing technologies. However, despite the advances already achieve