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FEKT-KVELAcad. year: 2011/2012
1. Basic classification of power converters: AC/DC, AC/AC, DC/DC, DC/AC. Cascade of few converters. DC-bus.2. Static thermal phenomena. Cooling of semiconductors. Demanded thermal resistance of the heat sink.3. Active power; its calculation in special cases.4. EMC in LF region. Power factor, total harmonic distortion factor.5. Power switching devices, overview: diode, thyristor, triac, BJT, MOS-FET, IGBT, GTO.6. Rectifiers: non-controlled, controlled. Typical loads. Mean value of output voltage.7. Rippling of the load current. Demanded inductance of the choke. Type power of transformer.8. Main rectifiers for supplying of transistor converters. Two-pulse, and six-pulse rectifier with the capacitor.9. AC/AC converters: 1-phase, 3-phase. Loads of R, L, R-L, R-L-Ui types. Phase control of triacs.10. DC/DC transistor converters. DC/AC transistor converters (1-phase, 3-phase).11. Control strategy of DC/DC, and DC/AC converters. PWM, sinusoidal PWM.12. Magnetic phenomena in the power electronics. Transformer theory. Mathematic models of the voltage transformer and current transformer.13. Switch-mode supplies. DC/DC converters with the pulse transformer. Single-end, and double-end buck converters.
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Specification of controlled education, way of implementation and compensation for absences
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branch BK-SEE , 2 year of study, winter semester, compulsory
branch EE-FLE , 1 year of study, winter semester, compulsory
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Fundamentals seminar
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