Investigation of Output Voltages Depending On Load In Multi Output Flyback Converter

Year 2018, Volume: 21 Issue: 3, 693 - 700, 01.09.2018

Salih Dindar İres İskender

https://doi.org/10.2339/politeknik.389612

Cited By: 1

Abstract

Switched mode power supplies (SMPS) is currently
preferred due to safety and high efficiency. Flyback converter, which is one of
topologies used by various switches, is capable of providing voltage isolation
and multioutput. This article
firstly attempts to
investigate the topology of multioutput flyback converter, and then to model it
in a computer based simulation utilizing from mathematical analysis. This
simulation based modelling is designed to control the integrated circuit (IC)
by getting ratio a voltage from unloaded feedback winding. Gate pulse providing
from control circuit regulate output voltages by triggering MOSFET. The
feedback signal is taken from one of the windings to perform good efficiency
and best cost. Although the feedback winding is at desired voltage, other
output is to change according to load conditions in outputs or to input
voltages, because of mutual inductance and other condition. To represent the
variables in the design of a flyback power supply
with six isolated output, the model have been run properly on ORCAD 16.6
 by showing the transient and steady state simulations
of converter. Unlike other simulation programs, this model is fully designed
for all nonlinear components without using blocks.

Keywords

Multioutput flyback converter, psipice

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