Switch Mode Power Supplies

Course title: Switch Mode Power Supplies

Code: 3ФЕИТ05З031

Number of credits (ECTS): 6

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

Prerequisite for enrollment of the subject: None

Course Goals (acquired competencies): Gaining basic knowledge and understanding of the principles of operation, design and applications of basic dc-dc power converter topologies and its parameters, dc-dc power supplies, design requirements and procedures. Acquiring competence and skills to use, analyze, compare, design and test switch-mode power supplies, as well as solving practical application examples.

Total available number of classes: 180

Course Syllabus: 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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