Wyniki wyszukiwania - BazTech

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Europejskie urządzenia małej mocy wykorzystujące odnawialne źródła energii

Malowaniec B.

Przemysł Chemiczny

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2016

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T. 95, nr 3

512--518

PL

Przybliżono europejskie urządzenia pozyskujące energię ze źródeł odnawialnych (OZE) przeznaczone do wykorzystania m.in. w domach jednorodzinnych. Przedstawiono istotne cechy tych urządzeń, ich parametry techniczne i eksploatacyjne oraz ich wartości świadczące o sprawności danego urządzenia. Szczegółowo opisano wybrane rozwiązania wyróżniające się na tle pozostałych w przygotowanej w IOŚ-PIB bazie danych.

EN

A review, with 21 refs., of the solar panels, photovoltaic module, heat pumps and wind turbines for use in singlefamily houses.

2

A Low-Power Autonomous Sensor Module for Biomedical Applications

Sondej T., Maciejewski M.

Measurement Automation Monitoring

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2016

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Vol. 62, No. 6

206--208

EN

The paper presents the construction of an energy-efficient, stand-alone measurement module, designed for use in biomedical applications. The paper discusses the use of an algorithm implementing the acquisition and processing of data, whose main objective was to minimize energy consumption. For the construction of the measuring module, there are used a microcontroller with Cortex-M4F core and two external digital sensor systems: (1) analog-front-end circuit, designed to measure the ECG signal, and (2) a 3-axis system of an integrated accelerometer, gyroscope and magnetometer, made in MEMS technology. In order to minimize the energy consumption, the solutions proposed include dynamic frequency management, the introduction of sleep modes, and the use of selected hardware features of the microcontroller. The proposed techniques and algorithms are implemented to measure the ECG signal at a sampling rate of 250 Hz. Experimental studies of the sensor module constructed were carried out. As a result of the energy saving techniques used, the working time of the device was extended by more than 6 times.

3

Low-power wide-frequency-range ring oscillator for temperature-controlled oscillator

Frankiewicz M, Kos A

Elektronika : konstrukcje, technologie, zastosowania

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2013

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Vol. 54, nr 12

25-27

EN

The paper describes structure and simulation results of the novel ring oscillator designed in UMC CMOS 0.18 μm (1.8 V) which is a part of power management system including Temperature-Controlled Oscillator. Frequency generated by the oscillator is tuned by scaling the supply voltage, additionally ring length is digitally controlled. Presented ring oscillator has very wide tuning range (250 MHz–2.1 GHz) with small current consumption (34–689 μA).

PL

Artykuł opisuje strukturę i wyniki symulacji oscylatora pierścieniowego zaprojektowanego w technologii UMC CMOS 0,18 μm (1,8 V), który jest częścią systemu zarządzania mocą układu scalonego zawierającego generator przestrajany temperaturą układu. Częstotliwość generowana przez oscylator jest przestrajana poprzez zmianę napięcia zasilania, dodatkowo długość pierścienia oscylatora jest kontrolowana sygnałem cyfrowym. Opisywany oscylator ma bardzo szeroki zakres przestrajania (250 MHz–2,1 GHz) przy niskim poborze prądu (34–689 μA).

4

CMOS implementation of an analogue median filter for image processing in real time

Jendernalik W., Jakusz J., Blakiewicz G., Szczepański S.

Bulletin of the Polish Academy of Sciences. Technical Sciences

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2013

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Vol. 61, nr 3

725--730

EN

An analogue median filter, realised in a 0.35 μm CMOS technology, is presented in this paper. The key advantages of the filter are: high speed of image processing (50 frames per second), low-power operation (below 1.25 mW under 3.3 V supply) and relatively high accuracy of signal processing. The presented filter is a part of an integrated circuit for image processing (a vision chip), containing: a photo-sensor matrix, a set of analogue pre-processors, and interface circuits. The analysis of the main parameters of the considered median filter is presented. The discussion of important limitations in the operation of the filter due to the restrictions imposed by CMOS technology is also presented.

5

Low-noise micro-power chopper amplifier for MEMS gas sensor

Nebhen J., Meillere S., Masmoudi M., Seguin J.-L., Barthelemy H., Aguir K.

International Journal of Microelectronics and Computer Science

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2011

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Vol. 2, nr 4

146-155

EN

In this paper, a low-noise, low-power and low voltage Chopper Stabilized CMOS Amplifier (CHS-A) is presented and simulated using transistor model parameters of the AMS 0.35 μm CMOS process. This CHS-A is dedicated to high resistive gas sensor detection. The proposed CHS-A using Chopper Stabilization technique (CHS) exhibits an equivalent input referred noise of only 0.194 nV/√Hz for a chopping frequency of 210 kHz under ۫.25 V supply voltage and 26.5 dB voltage gain. The inband PSRR is above 90 and the CMRK exceeds 120 dB. At the same simulation condition, the total power consumption is 5 μW only.