Magnetising inductance of multiple‐output flyback dc–dc convertor for discontinuous‐conduction mode

Fuel Cell/DC-DC Convertor Control by Sliding Mode Method

Fuel cell's system requires regulating circuit for voltage and current in order to control power in case of connecting to other generative devices or load. In this paper Fuel cell system and convertor, which is a multi-variable system, are controlled using sliding mode method. Use of weighting matrix in design procedure made it possible to regulate speed of control. Simulation results show the ...

Modeling and Controlling Strategy of Four-Switch Buck-boost Convertor with Smooth Mode Transitions

Abstract: Four-switch synchronous buck-boost (FSBB) converter is much suitable for battery management system for its characteristic of wide input voltage range, high efficiency, and positive voltage output. A three mode control scheme with two modulation signals and one carrier can be adopted to achieve the smooth transition among modes. Using feed forward voltage mode control, the input voltag...

How to Keep a FLYBACK Switch Mode Supply Stable with a Critical‐Mode Controller

INTRODUCTION Switch Mode Power Supplies (SMPS) can operate in two different conduction modes, each one depicting the level of the current circulating in the power choke when the power switch is turned on. As will be shown, the properties of two black boxes delivering the same power levels but working in different conduction modes, will change dramatically in DC and AC conditions. The stress upo...

Step up dcdc converter pdf

High Efficiency Grid Tied Interleaved Flyback Micro Inverter with Hybrid Mode for Pv Ac Modules

Boundary Conduction Mode (BCM) and Discontinuous Conduction Mode (DCM) control strategies are widely used for the flyback micro inverter. For the interleaved flyback micro inverter, the dominant losses with heavy load include the conduction loss of the power MOSFETs and diodes and the loss of the transformer while the dominant losses with light load include the gate driving loss, the turn off l...