Transcription of LECTURE NOTES
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LECTURE NOTES
DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING COURSE: POWER ELECTRONICS BRANCH: EEE CLASS: III/I Sem. YEAR: 2013-14 LECTURE NOTES SHRI VISHNU ENGINEERING COLLEGE FOR WOMEN VISNUPUR, BHIMAVARAM - 534202 DEPARTMENT OF EEE SVECW Page 2 INDEX S. NO. CONTENT PAGE NO. 1 UNIT I: POWER SEMICONDUCTOR DEVICES 3 - 32 2 UNIT II: FIRING AND COMMUTATION CIRCUITS OF SCR 33 - 50 3 UNIT III: SINGLE PHASE HALF CONTROLLED CONVERTERS 51 - 60 4 UNIT IV: SINGLE PHASE FULLY CONTROLLED CONVERTERS 61 - 70 5 UNIT V: THREE PHASE LINE COMMUTATED CONVERTER 71 87 6 UNIT VI: AC VOLTAGE CONTROLLERS & CYCLO CONVERTERS 88 99 DEPARTMENT OF EEE SVECW Page 3 Unit-1 Power Semi Conductor Devices DEPARTMENT OF EEE SVECW Page 4 INTRODUCTION TO POWER ELECTRONICS: Power Electronics is a field which combines Power (electric power), Electronics and Control systems.
IGBT's. Thyristors Thyristors are a family of p-n-p-n structured power semiconductor switching devices 1.6 SCR's (Silicon Controlled Rectifier) The silicon controlled rectifier is the most commonly and widely used member of the thyristor family. The family of thyristor devices include SCR's, Diacs, Triacs, SCS, SUS, LASCR's and so on.
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