The article discusses design of mathematical model buck and boost converter and the analysis of the optimal frequency choice of the PWM signal for IGBT. The converter is dedicated for charging and discharging of hybrid car drive super-capacitor energy storage. The main role of the converter is to optimize energy content in supercapacitor storage used to acceleration and deceleration during driv...

Buck-boost DC–DC converters are useful as DC grid interfaces for renewable energy resources. In the classical buck-boost converter, output voltages smaller than input voltage (the buck region) observed duty cycles between 0 and 0.5. Several recent have been designed to present higher gains. Nevertheless, those topologies show a reduced duty-cycle range, leading in region, thus require use of ve...

A soft-switching topology for high power buck converter is proposed. Zero-current turn-on and zero-voltage turn-off is achieved without auxiliary switches. All active switches in the converter transmit power to the load equally. Converter control is simple despite four active switches. Converter operation is described and DC analysis is carried out. All operation modes are identified. The condi...

Fly-buck converter is a multi-output with the structure of synchronous buck on primary side and flyback secondary side, can be utilized in various applications due to its many advantages. In terms control, fly-buck has same as converter, allowing constant-on-time (COT) control applied converter. However, inherent energy transfer principle, primary-side output voltage regulation COT controlled c...

In the buck converter with MOS Fets, the low side switch, which must he still in cutoff state. becomes turn-on when the 2.0 Analysis of Self Turn-on Phenomenon

This paper proposes an interleaved buck converter (IBC) with input disturbance to feed a low voltage Permanent Magnet Brushless DC Motor (PMBLDC) drive. PMBLDC is one of the best electrical drives that have increasing popularity, due to their high efficiency, reliability, good dynamic response and very low maintenance. This makes the interest of simulating an ideal PMBLDC motor and its associat...

In view of the stratospheric airship application requirements on energy storage and management system, based on the topology of DC/DC converter main circuit, the composite PI controller is designed to realize respective control with the Boost mode and Buck mode. Furthermore, limit stop integration method is proposed to achieve a buck-boost complex DC/DC converter boost with effective switching ...

This paper covers the comparison between four different DC-DC converters for solar power conversion. The are buck converter, buck-boost boost and noninverting converter. An MPPT algorithm is designed to calculate battery voltage, current of PV array, voltage output power. It observed that non-inverting converter finest final circuit design has results 12.2V 0.31A 34V 23mW panel, 21.8mW efficien...

Most of the power electronic equipments are operated with dc supply. For reliable and stable operation, dc supply should be regulated. The regulation can be performed using buck, boost, Cûk, Sepic, Flyback regulators. Except single phase rectifier with resistive load all other rectifiers input currents are non sinusoidal in nature. This front end current distortion of rectifier converter leads ...

the cúk converter, which has voltage buck and boost ability, offers high flexibility as an interface device for solar panels. in addition, current ripple can be more reduced because of two input and output inductors at both sides. this paper presents a new application of current-variable inductors in a cúk converter that reduces the size and capacity of storage elements. because of two inductor...