Although the concept of extracorporeal membrane oxygenation (ECMO) has remained unchanged, component technology has evolved considerably over the past three decades. Presently the clinical conditions requiring ECMO support have been updated with input from the outcome data of patient registries. Modern circuit configuration has become less cumbersome, safer, and more efficient. Technological ad...

In this paper we present a new approach for a clock watchdog. This is an essential component to prevent secret key extraction from security hardware by side channel attacks based on clock manipulation. Our proposed circuit detects both too fast and too slow clock speeds and is implemented using only standard digital elements. We also introduce a post-fabrication configuration mechanism by using...

In this paper we propose three small instances of a reconfigurable circuit and analyze their properties using the brute force method and evolutionary algorithm. Although proposed circuits are very similar, significant differences were demonstrated, namely in the number of unique designs they can implement, the sensitiveness of functions to the inversions in the configuration bitstream and the a...

This paper presents a chip and test configuration for thermal evaluation based on MOSIS 0.5μ technology. We measured spatial temperature differences as high as 20.65°C on a 2mm by 2mm Tiny Chip. Our research shows that circuit location on a chip determines its default offset temperature and heat transport properties, which must be considered for prediction of junction temperature and electro-th...

A new configuration for realizing currentmode multifunction filter using current feedback amplifiers for a single current input source is presented. The proposed current-mode circuit realizes simultaneously low pass, high pass and band pass filters where as notch and all-pass filter functions can also be realized by addition and/or subtraction of various filter functions without any substantial...

Abstract Although a large number of single current feedback op-amp (CFOA)-based sinusoidal oscillator circuits have been proposed in the literature, to the best knowledge of the authors, no single-CFOA oscillator configuration has been reported earlier which can absorb all the parasitic impedances of the CFOA in the various external passive elements employed. The major intention of this paper i...

In the present work, a four-port model for inter-digital transducer was developed. This model was modified from Mason’s equivalent circuit and was ideal for the simulation of balanced mode surface acoustic wave devices. Inheriting the virtues of Mason’s model, this model included the energy storage effect and was capable to fit arbitrary polarity configuration of transducers. Simulation results...

SUMMARY A processing system with multiple field programmable gate array (FPGA) cards is described. Each FPGA card can interconnect using six I/O (up, down, left, right, front, and back) terminals. The communication network among FPGAs is scalable according to user design. When the system operates multi-dimensional applications, transmission efficiency among FPGA improved through user-adjusted d...

In this paper, a new voltage-mode (VM) KerwinHuelsman-Newcomb (KHN) biquad is proposed. The proposed circuit employs two differential difference current conveyors (DDCCs) as active elements together with two grounded capacitors and two grounded resistors as passive elements. Thus, it employs minimum number of passive elements. The circuit simultaneously provides the three basic filter functions...

This paper reports a new functional design and modeling of a vibration energy harvester composed from a mechanical resonator (MEMS), capacitive transducer and a conditioning circuit based on the BUCK DCDC converter architecture. The basic configuration of conditioning circuit from [1][2] is enhanced with two major features for the power management allowing, firstly, to adapt dynamically to the ...