نتایج جستجو برای: current drive
تعداد نتایج: 849350 فیلتر نتایج به سال:
This article is an introduction of a new topology of current source inverter (CSI) which can be alternatively implemented in low/medium power applications. This configuration is organized from series connected sub-multilevel inverters blocks. The basis of the recommended multilevel topology is the connections of many cell units in a decent scheme with the help of H-bridge inverter. The suggeste...
The commutation process causes current ripple to be generated in the drive system of brushless DC (BLDC) motor. This, in turn, leads to output torque ripple. Mechanical vibration and acoustic noise are its influences which are undesirable phenomenon in some applications. A new method is presented in this paper which reduces torque ripple and commutation period in the entire range of motor speed...
in the present study, a model of a large lithium polymer (li-po) battery for use in the simulation of hybrid electric vehicles (hevs) is developed. to attain this goal, an equivalent circuit (ec) consisting of a series resistor and two rc parallel networks is considered. the accuracy and the response time of the model for use in an hev simulator are studied. the battery parameters identificatio...
Membrane current following prolonged periods of rapid stimulation was examined in short (less than 1.5 mm) canine cardiac Purkinje fibers of radius less than 0.15 mm. The Purkinje fibers were repetitively stimulated by delivering trains of depolarizing voltage clamp pulses at rapid frequencies. The slowly decaying outward current following repetitive stimulation ("post-drive" current) is elimin...
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