A single stage single switch AC/DC converter is an integration of input current shaper and a DC/DC cell with a shared controller and one active switch. The converter is applicable for digital input power supply with high input power factor and tight output voltage regulation. The focus of the topology is to reduce the DC bus voltage at light load without compromising with input power factor and...

A single stage single switch AC/DC converter is an integration of input current shaper and a DC/DC cell with a shared controller and one active switch. The converter is applicable for digital input power supply with high input power factor and tight output voltage regulation. The focus of the topology is to reduce the DC bus voltage at light load without compromising with input power factor and...

A new fuzzy maximum power point tracker (MPPT) for photovoltaic systems is proposed. Fuzzy controller input parameters dI dP , ) dI dP ( D and variation of duty cycle ( DC D ) are used to generate the optimal MPPT converter duty cycle, such that solar panel maximum power is generated under different operating conditions. A photovoltaic system including a solar panel, a fuzzy MPP tracker and...

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...

This paper proposes a novel soft-switching singlephase ac–dc–ac converter to give high input power factor and low current distortion on the rectifier side and provide clean and stable ac voltage on the inverter side. The proposed converter uses a new zero voltage switching (ZVS) strategy to get ZVS function. Besides operating at constant frequency, all semiconductor devices operate at soft-swit...

An improved RF–dc converter based on a class-E rectifier with wide-dynamic-range input matching is presented. The input impedance is controlled by two varactor diodes to compensate for impedance changes with RF input power and dc loading conditions. The RF–dc converter achieved a peak efficiency of 60% and an S11 less than −20 dB over an input RF power range of 12 dB and an operating battery vo...

The goal of this project is to implement a 10-bit segmented current steering TSMC 0.25μm CMOS digital to analog converter. Binary coded 10-bit data was input to the converter. The converter will convert all combinations of ten bits from digital form into correspondent “staircase” voltage levels. A low pass filter placed after the output terminal of the converter is necessary to make the voltage...

The Multi input dc–dc boost converter is used for hybridizing alternative energy sources such as photovoltaic(PV),fuel-cell(FC) for generation and battery for storage purpose is designed and simulated with a minimum number of switches and also easy control circuit. The system is applicable for DC loads. Control strategy has been considered to achieve permanent power supply to the load via the p...

This paper proposes an input-series-output-parallel connected ZVS full bridge converter with interleaved control for photovoltaic power conditioning systems (PV PCS). The input-series connection enables a fully modular power-system architecture, where low voltage and standard power modules can be connected in any combination at the input and/or at the output, to realize any given specifications...

Abstract The traditional dc–dc converters have limited boosting ability. Significant voltage gains can be accomplished only at extreme duty ratios, where the high voltage/current stress and losses occur on semiconductors. This work proposes a common‐ground multi‐phase boost converter that benefits from factor low continuous input‐current minimum operational modes (only two CCM) regardless of nu...