248 results found.
Year: 2009, Volume: 9, Issue: 3
... Swarm Optimization (PSO) will be used for the during eclipse and discharge as well, periodically. A machines optimization because of its advantages like fast bidirectional DC-DC converter is used for solar cell convergence and continuity [15]. Maximum Power Tracking (MPT) and boosting the Proper material and machine structure for space amplitude ...
Terms matched: 1 - Score: 6 - 552k
Year: 2009, Volume: 9, Issue: 2
... 2009 A Comparative Study between Two Control Strategies for Matrix Converter Ghalem BACHIR, Azeddine BENDIABDELLAH LDEE Laboratory, University ... The authors compare two control strategies for direct AC-AC matrix converters; namely the Venturini method and the scalar strategy ... . G. A. April. "Asynchronous Operation of Cycloconverter with Improvd Voltage Gain by illustrate the performance of ...
Terms matched: 3 - Score: 96 - 554k
Year: 2009, Volume: 9, Issue: 2
... Considering the extended use of squirrel cage induction machine in industrial or domestic applications both as motor and generator, the improvement of the energy efficiency of this electromechanical energy converter represents a continuous challenge for the design engineers, any achievements in this area meaning important energy savings Figure 1. Energy efficiency classes proposed by IEC. for ...
Terms matched: 1 - Score: 3 - 736k
Year: 2009, Volume: 9, Issue: 2
... ]; characteristics; • paralleled combination of high-voltage fuse and • the power loss can reach important values in ZnO varistors [7 ]; the case of power converters' protection; Digital Object Identifier 10.4316/AECE.2009.02006 34 Advances in Electrical and Computer Engineering Volume 9, Number 2, 2009 • they can not be a ...
Terms matched: 1 - Score: 3 - 1,416k
Year: 2009, Volume: 9, Issue: 1
... D/A and the A/D WTIMs to start transmitting the data. converter, respectively. The total energy consumption per bit can be written as Ebt ... circuit level, has precluded the transceiver, A/D and D/A converters, base band processors, application of MIMO techniques to energy limited wireless and ...
Terms matched: 2 - Score: 5 - 521k
Year: 2009, Volume: 9, Issue: 1
... to the original sine reference. Fig.1 shows the three phase power inverters with variable inductance of the output load, and Figure 2 shows the Index Terms — PWM converter, digital control, microcontroller, simulation, harmonic distortion generation of the command signals for the transistors within the three-phase inverter using the PWM technique command I. ...
Terms matched: 1 - Score: 19 - 766k
Year: 2008, Volume: 8, Issue: 2
... scan and measure the level and frequency of the NQR-signal. The unit is controlled by the personal computer. Index Terms — Nuclear quadruple resonance, Analog-to- digital converter, Digital-to-analog converter, Microcontroller, Stepper motor I. INTRODUCTION Nuclear quadruple resonance (NQR) is a resonance absorption of electromagnetic energy in crystals, caused by ...
Terms matched: 1 - Score: 67 - 474k
Year: 2008, Volume: 8, Issue: 2
... for module (Microcontroller) which is managing a radio measuring the tilt of an object relative to the vertical interface (RF Transceiver), an A/D Converter, a power direction (based on the direction of the gravitational force of management module (MA) and a rechargeable battery the Earth). The measurement ...
Terms matched: 1 - Score: 6 - 831k
Year: 2009, Volume: 8, Issue: 2
... fugitive (one duration is generally lower than operation of the IGBT requires suitable gestures in order to 10µs). realise a better and reliable operation for the power converters. From the need for a protection of the IGBT vis a vis the Thus, it is necessary to know the extreme operating limits for these devices since ...
Terms matched: 1 - Score: 19 - 445k
Year: 2007, Volume: 7, Issue: 1
... system if the TO LOCAL INDUSTRIAL NETWORKS adapter to the local industrial network is passive (e.g. As figure 3 illustrates, the communication component RS232 to RS485 passive converter). Real-time facilities comprises two levels. The acquisition component is may be obtained only for WINDOWS CE. designed to collect the whole amount of data carried ...
Terms matched: 1 - Score: 3 - 732k