Results 41 to 50 of about 141,179 (273)
Stairstepping on PWM inverters explained [PDF]
4th IET International Conference on Power Electronics, Machines and Drives (PEMD 2008), 2008 When supplying an induction motor by a PWM-inverter, reflection phenomena occur if the supply is done through long motor cables. Several papers discuss by simulations or experiments the overvoltage appearing at the motor terminals. The consequences of the overvoltage are a widespread topic. This paper deals with other reflection phenomena observed with
Knockaert, Jos +3 more
openaire +3 more sources
Quartz Accelerometer Closed Loop Analog Readout Circuit [PDF]
Gazi Üniversitesi Fen Bilimleri Dergisi, 2020 In this paper, an analog circuit design for the precision reading circuit of the tactical grade accelerometer is presented. Quartz accelerometer is modeled mathematically by dividing its structure into subunits.
M. Oğuz GÜNBAZ, M. Timur AYDEMİR
doaj +1 more source
Model Predictive Control for Spacecraft Rendezvous in Elliptical Orbits with On/Off Thrusters [PDF]
, 2015 IFAC Workshop on Advanced Control and Navigation for Autonomous Aerospace Vehicles. 08/06/2015. SevillaIn previous works, the authors have developed a trajectory planning algorithm for spacecraft rendezvous which computed optimal Pulse-Width Modulated ...
Camacho, Eduardo F. +2 more
core +1 more source
Analysis and mitigation of dead time harmonics in the single-phase full-bridge PWM converters with repetitive controllers [PDF]
, 2018 In order to prevent the power switching devices (e.g., the Insulated-Gate-Bipolar-Transistor, IGBT) from shoot through in voltage source converters during a switching period, the dead time is added either in the hardware driver circuits of the IGBTs or ...
Blaabjerg, Frede +3 more
core +3 more sources
Electronics Letters, 1999 A new discrete sampling based pulsewidth modulation (PWM) strategy is presented which closely reproduces the characteristics of analogue hysteresis band modulation. This sampling based strategy does not require the solution of nonlinear transcendental equations, which are characteristic of the analogue method and therefore limit its application.
Bowes, SR, Grewal, SS, Holliday, DMJ
openaire +1 more source
Enhanced Performance Modified Discontinuous PWM Technique for Three-Phase Z-Source Inverter
Energies, 2020 Various industrial applications require a voltage conversion stage from DC to AC. Among them, commercial renewable energy systems (RES) need a voltage buck and/or boost stage for islanded/grid connected operation.
Ahmed A. Hossameldin +3 more
doaj +1 more source
IoT high-frequency electronic transformer with dimmable output voltage using PWM signals
Informador Técnico, 2021 This work presents the design, simulation, and implementation of a low-power electronic transformer, which output effective voltage can be controlled wirelessly through WIFI, via a user interface on a mobile phone.
Nelson Trillos-León +3 more
doaj +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano +11 more
wiley +1 more source
Pemodelan Fuzzy Logic Control untuk Pengendali PWM pada Buck Converter
Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2016 Recently the switching mode used in a buck converter is controlled by pulse width modulation (PWM) which has relatively higher efficiency compared to a linear power supply system. In general, there are two problems that often occur in the buck converter,
Helmy Mukti Himawan +2 more
doaj +1 more source
Self-precharge in single-leg flying capacitor converters [PDF]
, 2009 Flying Capacitor (FC) multilevel pulse width modulated (PWM) converters are an attractive choice due to the natural voltage balance property. During start-up of the converter, care has to be taken that the power switches are not exposed to voltage ...
Melkebeek, Jan +2 more
core +2 more sources