نتایج جستجو برای: modified pwm

تعداد نتایج: 255084  

2008
Alex Ruderman

An on-going extensive research on multi-level and matrix converters requires physically meaningful easy-to-calculate criteria to compare numerous suggested converter topologies and voltage modulation strategies. Frequency domain voltage Total Harmonic Distortion (THD) criterion approach is too complicated and non-transparent as it involves multiple Fourier integral and results in multiple serie...

2013

This application note describes step-by-step design considerations for a power supply using the FAN480X controller. The FAN480X combines a PFC controller and a PWM controller. The PFC controller employs average current mode control for Continuous Conduction Mode (CCM) boost converter in the front end. The PWM controller can be used in either current mode or voltage mode for the downstream conve...

2013
Akshay A Pandya

In this paper represent the simulation analysis of space vector pulse width modulated(SVPWM) inverter fed Induction motor drives. The main objective of this paper is analysis of Induction motor with SVPWM fed inverter and harmonic analysis of voltages & current. for control of IM number of Pulse width modulation (PWM) schemes are used to for variable voltage and frequency supply. The most commo...

2016
RamKrishan Maheshwari Sergio Busquets-Monge

Several pulsewidth modulation (PWM) strategies have been proposed for three-phase multilevel converters. Typically, these PWM methods can be either space-vector or carrier-based implemented, where the carrier-based implementation usually presents a lower computation complexity. In this paper, a novel approach for the carrierbased implementation of different existing PWM methods is proposed for ...

2016
Sivaa Ganesh Senthil Raja

The proposed system is to utilize the renewable resources by digital PWM control of synchronous converter. Usually PWM pulse is being generated through a digital system such as microcontroller or Digital signal controller. In stand – alone application these controllers increases the cost but XILINX FPGA based PWM generation reduces the cost. XILINX FPGA is invented by XILINX which is being cons...

2013
Navid Golbon Gerry Moschopoulos

A new auxiliary circuit that can be implemented in DC-DC and AC-DC ZVS-PWM converters is proposed in the paper. The circuit is for ZVS-PWM converters used in applications where high-frequency operation is needed and the load current is higher than that of typical ZVS-PWM converters. In the paper, the operation of a new ZVS-PWM converter is described, its steady-state operation is analyzed, and ...

2011
Janyavula Deepthi S N Saxena Nashiren F. Mailah Senan M Bashi Ishak Aris Ilhami Colak Ramazan Bayindir Jagadish Kumar Biswarup Das Pramod Agarwal

Due to their ability to synthesize waveforms with better harmonic spectrum and attain higher voltages, multi-level inverters are receiving increasing attention in the past few years. The multilevel inverter was introduced as a solution to increase the converter operating voltage above the voltage limits of classical semiconductors. In this paper, a Diode Clamped Multilevel Inverter is controlle...

2014
Mohammad Talebzadeh Fatemeh Zare-Mirakabad

In computational methods, position weight matrices (PWMs) are commonly applied for transcription factor binding site (TFBS) prediction. Although these matrices are more accurate than simple consensus sequences to predict actual binding sites, they usually produce a large number of false positive (FP) predictions and so are impoverished sources of information. Several studies have employed addit...

2008
ELENA NICULESCU DORINA-MIOARA PURCARU

The paper presents the full-order small-signal models of some basic PWM converters (Cuk, Sepic and Zeta) with discontinuous inductor current mode (DCM). The derivation procedure is based on the small-signal PWM switch model in DCM and converter topologies derived from their original topologies. The small-signal characteristics of these converters are presented in symbolic forms. Such models can...

2013
Mukesh K. Chippa Shannon M. Whalen Shivakumar Sastry Frank L. Douglas

We present a goal-seeking framework for decision-making to empower personal wellness management (PWM). PWM is a complex issue that lies at the intersection of multiple disciplines including psychology, exercise science, medicine, behavioral management, nutrition, and emerging technologies. Ultimately, the objective for the PWM enterprise is to encourage participants to become intrinsically moti...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید