Flyback Switch Mode Power Supply Research Articles

Fractional PID controlled cascaded flyback switched mode power supply with enhanced time domain response

<p>This work compacts with the modeling, simulation, and application of a Fractional Order Proportional Integral Differential (FOP-I-D) controlled Cascaded Flyback Switched Mode Power Supply (CFSMPS) system. It recommends Parallel cascaded flyback converter for the production of essential DC voltage from the input supply voltage. The output from CFSMPS is regulated by using closed loop configuration. The simulation of Closed-loop Proportional-Integral (PI) and FOP-I-D controlled CFSMPS system has been done and the results of the systems are related. The outcomes signify that the FOP-I-D based system has presented an enhanced response to represent as similar to the PI controlled CFSMPS system. The FOP-I-D controlled CFSMPS system has benefits like decreased steady-state error and enhanced time-domain response.</p>

An Improved Power Factor Correction for Interleaved Flyback Switched Mode Power Supply

Nowadays the use of electronic equipment finds a progressive development in the modern world. Hence it becomes a mandate to check whether the harmonic content of line current of any electronic device which is connected to the ac supply meets the appropriate standards. This demand is satisfied by implementing the Power Factor Correction (PFC) circuit in order to make the input current to be in sinusoidal in nature and in-phase with the input voltage. Numerous solutions are available to make the line current almost sinusoidal. This paper deals with the inclusion of passive PFC in the interleaved Fly back SMPS to improve the power factor. The proposed work also examines the reduction of current ripple at the output using interleaved converter.

A low power multiple output switch-mode power supply with wide input range

In this paper, a wide input range multiple output flyback switch-mode power supply (SMPS) with its design aspects is presented. The implemented SMPS is intended to be used in various applications i...

Design and Implementation of Flyback Converter for Electrical Discharge Machining Power Generator

Electrical Discharge Machining process has been widely used for manufacturing micro components due to its contactless process. Its application has also been introduced in machining micro pits on hip implant. In this paper, a new design of power generator is proposed in order to reduce micro crack while machining take place. Flyback Switch Mode Power Supply has been chosen because of its high efficiency. The simulation of Flyback converter using LT Spice is presented. The result shows that the system achieves 95.9% of efficiency. Experimental results show that flyback converter able to produce DC voltage up to 111.6 V.

Practical feedback [switched mode power supplies

The feedback network for a flyback switched mode power supply must enable precise control of the output, but must also be inherently stable. To achieve this, the designer must manage the complex relationships between the parameters of the feedback network. Chiefly, these are the DC gain, gain margin, phase margin and bandwidth. This article presents such a feedback network with detailed descriptions of the optocoupler and error feedback amplifier sections.

250w flyback SMPS design for a big size CTV

This paper presents the design criteria, procedure and implementation of an AC-DC flyback switch mode power supply (SMPS) which provides 250 W rated average power to a big size colour television (CTV) set with a DVD player. A novel technique is developed to keep the stand-by power consumption of flyback SMPS under 1 W and a boost type of active power factor correction (Active PFC) preconverter is incorporated into the flyback SMPS in order to comply with the European CENELEC EN61000-2-3 electromagnetic compatibility (EMC) standard, which deals with the input current harmonic values of equipments.