Robson Luiz Moreno

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This work presents the design and implementation of a control system for a thyristorized rectifier bridge held by PSoC (Programmable System-on-Chip), which is able to maintain the output current of the circuit in a predetermined reference supporting changes in input voltage, as well as changes in load. Using the PSoC — an integrated circuit that has(More)
This paper presents a full wave active rectifier for biological implanted devices using a new original comparator to reduce the rectifier transistors reverse current. The rectifier was designed in 0.13µm CMOS process and it can deliver 1.09Vdc when receive a minimum signal of 1.2Vac. It achieves a power conversion efficiency of 81% when working at(More)
In this paper, we present a signal processing method capable of detecting angina in electrocardiograms. The adopted procedure is based on fuzzy clustering to reduce the amount of data sampling and a comparison with samples from a previously established database. By using the correlation method on the samples, it is possible to establish an initial(More)
This article describes the implementation of Twofish — one of the Advanced Encryption Standard (AES) finalists, in Field Programmable Gate Array — FPGA. The core was implemented in Altera Quartus Cyclone board, is totally portable and can be used in any FPGA family. It was developed using the VHDL patterns. The algorithm was implemented for(More)
Dense wired networks, such as ultra-dense EEG network, comprised of 256 or 512 electrodes for temporal and spatial analysis of the brain, demand a large amount of wiring. Instead of using a pair of wires for power supply and additional wiring for communication, the use of Power Line Communications (PLC) allows power and communication in a single pair of(More)
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