Results 61 to 70 of about 54,360 (207)
Design of High-Precision Driving Control System for Charge Management
SensorsDue to the interaction of accumulated charges on the surface of a test mass with the surrounding electric and magnetic fields, the performance of inertial sensors is affected, necessitating charge management for the test mass.
Yang Wang +4 more
doaj +1 more source
Multiphase space vector pulse width modulation
IEEE Transactions on Energy Conversion, 2002 Pole-phase modulation adjusts the pole-phase ratio of an induction machine and requires a multileg, multiphase inverter. This paper analyzes an n-leg, n-phase inverter, and presents techniques for n-phase space vector pulse width modulation (SVPWM). In particular, nine-phase SVPWM is developed and implemented on a nine winding induction machine.
J. W. Kelly +2 more
openaire +2 more sources
, 2010 In this paper, an analysis of output current ripple of three-phase PWM inverters with discontinuous modulation is presented. The analytical expressions for discontinuous modulation injection signal are derived.
Dahono, Pekik Argo
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Suppression of high-frequency perturbations in pulse-width modulation [PDF]
, 2008 A method suppresses high-frequency perturbations in a pulse-width modulated signal. The pulse-width modulation may superpose a carrier signal onto an input signal having a predetermined modulation frequency. The carrier signals may be phase-shifted.
Knott, Arnold
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Energy detection UWB system based on pulse width modulation
, 2014 A new energy detection ultra-wideband system based on pulse width modulation is proposed. The bit error rate (BER) performance of this new system is slightly worst than that of a pulse position modulation (PPM) system in additive white Gaussian noise ...
Cui, Song +3 more
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Direct power control in pulse-width modulation rectifier based on virtual flux estimation
Advances in Mechanical Engineering, 2017 Pulse-width modulation rectifier plays an important role in the field of electric energy conversion. It has many advantages such as the grid side current sinusoidal, bidirectional energy flow, and unit power factor.
Bo Fan +4 more
doaj +1 more source
Strong modulation instability in a silicon–organic hybrid slot waveguide
, 2015 In this paper, we investigate the strong modulation instability (MI) at telecommunication band in a silicon-organic hybrid slot waveguide. The organic material of polymer poly (bis para-toluene sulfonate) of 2, 4-hexadiyne 1, 6 diol (PTS), which has high
Kang, Z +17 more
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Step-Pulse Modulation of Gain-Switched Semiconductor Pulsed Laser
Applied Sciences, 2019 To improve the peak power and extinction ratio and produce ultra-short pulses, a novel approach is presented in this paper offers a highly effective modulated method for a gain-switched semiconductor laser by using step-pulse signal modulation.
Bin Li +4 more
doaj +1 more source
Improvement of pulse width modulation techniques
, 1975 Pulse width modulation (P.W.M.) techniques, adopted in inverters for modern variable speed drives, allow an easy adjustment of the fundamental component of the output voltage.
BUJA, GIUSEPPE
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, 2021 Space vector pulse width modulation (SVPWM) generates less harmonic distortion in the output voltage or currents, provides more efficient use of supply voltage and better voltage utilization compared with sine pulse width modulation (PWM).
Mohammed, Laith A., Hussein, Taha A.
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