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Note for Power Electronics - PE by Adisu Teshale

  • Power Electronics - PE
  • Note
  • Adama Science and Technology University - ASTU
  • Electrical Engineering
  • B.Tech
  • 6 Topics
  • 2 Offline Downloads
  • Uploaded 10 months ago
Adisu Teshale
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Power Electronics (PCE-4204) By: Adisu Teshale (MSc.) Department of Electrical Power and Control Engineering Adama Science and Technology university Adama, Ethiopia E-mail: adisu.teshale@astu.edu.et Updated on July, 2018

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Lecture – 2: Power Semiconductor Devices (Switches)

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Classifications of Power Electronics devices • In broad sense power electronic devices are classified in to two. These are: I. Vacuum devices: Mercury, arc rectifier, thyratron etc... Seldom used today. II. Semiconductor devices: major power electronic devices.

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Classifications of Power Electronics devices based on the degree of controllability 1. Power Diodes 2. Thyristor devices 3. a) Silicon controlled rectifier (SCR) b) Static induction thyristor (SITH) c) TRIAC (Triode ac switch) d) Gate turn-off thyristor (GTO) e) MOS- controlled thyristor (MCT) f) Integrated gated-commutated thyristor (IGCTs) Power transistors a) Bipolar junction transistor (BJT) b) Metal oxide semiconductor field effect transistor (MOSFET) c) Insulated gate bipolar transistor (IGBT) d) Static induction transistor (SIT)

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