Due to increasing concerns on the power quality, power factor correction (PFC) has become an important issue in light-emitting diode (LED) lighting applications. A boost converter is one of the most well-known PFC topologies, due to its simple circuitry, simple control scheme and small number of passive components. Even though a boost converter is recognized as a typical PFC converter, its outp...

Présentée devant L’INSTITUT NATIONAL DES SCIENCES APPLIQUÉES DE LYON Pour obtenir LE GRADE DE DOCTEUR École Doctorale: ELECTRONIQUE, ELECTROTECHNIQUE, AUTOMATIQUE (E.E.A.) Spécialité: GÉNIE ELECTRIQUE par Nan Li ————————————————————————————————————— Digital Control Strategies for DC/DC SEPIC Converters towards Integration Stratégies de Commande Numérique pour un Convertisseur DC/DC SEPIC en vue...

Due to the intensified BLDC motor applications in recent decades, Power factor correction (PFC) converters have attracted several researchers. In previous research works, SEPIC converter with the Tapped Inductor model operating in Discontinuous Conduction Mode (TI-SEPIC-DCM) to produce significant results. This work proposes a novel idea of bridgeless rectifier for PFC to enhance rectifier powe...

This paper proposes an implementation of Single Ended Primary Inductor Converter (SEPIC) converter and Voltage Source Inverter for an Induction Motor using Photovoltaic energy as a source. Generally the larger number of drives employed for industrial and commercial applications are induction motor drives. To run such kind of motor from the PV source, it is proposed to have a DCDC converter and ...

This paper is about the implementation of SEPIC Converter and Induction Motor fed water pumpanalysis to improve the efficiency of the input and it act as a impedance matching network. SEPIC Converter is a newly invented chopper in which it has less no components. So, switches losses and conduction losses are reduced in turn it improves the efficiency and reduce the harmonics. When internal impe...

To efficiently supply wide-range DC voltage from a pulse-width modulation (PWM) rectifier, this paper presents a single-phase, full-wave, diode-bridge, single-ended primary-inductor converter-type (SEPIC-type) power-factor-correction (PFC) rectifier in continuous conduction mode with a sliding surface-regulated current-mode PWM controller. According to the switched-mode operation of the rectifi...

This application note covers the general concept, design and some source code modifications for using the MCP1631HV Digitally Controlled Programmable Current Source Reference Design for an LED lighting application. The document offers additional insight into the MCP1631HV Digitally Controlled Programmable Current Source Reference Design. A Microchip MCP1631 PWM controller and a low-cost PIC16F6...

This paper presents a fuzzy controller (FC)based single-ended primary-inductor converter (SEPIC) for maximum power point tracking (MPPT) operation of a photovoltaic (PV) system along with battery. The FLC proposed scheme uses the convergent distribution of the membership function. The fuzzy controller for the SEPIC MPPT scheme shows the voltage without any changes in different load conditions a...

Ant Colony Optimization (ACO) used to tune the Proportional and Integral (PI) controller for Single Ended Primary Inductance Converter (SEPIC) is discussed in this paper. The SEPIC is based on DC to DC converter to maintain the constant output voltage but varying input voltage. PI controller maintains a constant output of the converter, without changing sign. MATLAB simulation designing is deve...

Solar energy is the most promising non-conventional sources of energy. This paper proposes the working of single phase induction motor using solar arrays and power electronics. The SEPIC converter is taken as dc-dc converter which is designed and DC analysis has been done in CCM. Then inverter is used to convert dc power to ac power. The performance of SEPIC converter and inverter is measured, ...