Switch Mode Power Supplies

Course title: Switch Mode Power Supplies

Code: FEIT05L024

Number of credits (ECTS): 6

Weekly number of classes: 3+1+1+0

Prerequisite for enrollment of the subject: None

Course goals/Competences: Acquiring fundamental understanding of the principles of operation of basic dc-dc power converter topologies and its parameters, dc-dc power supplies, design requirements and procedures. Capability to use, analyze, compare, design and test switch-mode power supplies.

Total available number of classes: 180

Curriculum: Introduction: voltage chopper, control of dc-dc converters with pulse-width modulation (PWM), assumptions used in steady-state analysis. Step-down (buck) converter, genesis, continuous and discontinuous conduction mode, boundary between continuous and discontinuous conduction, output voltage ripple, switching devices voltage and current stresses, effects of parasitic elements on converter efficiency. Analysis of other non-isolated converters: step-up (boost) converter, buck-boost converter, Cuk dc-dc converter, SEPIC and ZETA converters. Bidirectional converters. Full-bridge dc-dc converter: PWM with bipolar and unipolar voltage switching. Non-isolated dc-dc converter comparison. Review of magnetic circuits and transformer models. Dc-dc converters with electrical isolation: flyback, forward, push-pull, half-bridge, full-bridge and current-source dc-dc converter. Control of switch-mode dc power supplies: linearization using state-space averaging, transfer function, stability and compensation of the feedback system, current-mode control, power supply protection.

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