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Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
Practical setup of power electronics lab  power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]
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Practical setup of power electronics lab power semicondutor devices [ scr, mosfet, igbt, gto, traic,bjt ]

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Some common power devices are the power diode, thyristor, power MOSFET, and IGBT. The power diode and power MOSFET operate on similar principles to their low-power counterparts, but are able to carry …

Some common power devices are the power diode, thyristor, power MOSFET, and IGBT. The power diode and power MOSFET operate on similar principles to their low-power counterparts, but are able to carry a larger amount of current and are typically able to support a larger reverse-bias voltage in the off-state.

Structural changes are often made in a power device in order to accommodate the higher current density, higher power dissipation, and/or higher reverse breakdown voltage. The vast majority of the discrete (i.e., non-integrated) power devices are built using a vertical structure, whereas small-signal devices employ a lateral structure. With the vertical structure, the current rating of the device is proportional to its area, and the voltage blocking capability is achieved in the height of the die. With this structure, one of the connections of the device is located on the bottom of the semiconductor die.

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Transcript

  • 1. Electrical Final Year 2014 Batch
  • 2. PRACTICAL SETUP OF POWER ELECTRONICS LAB
  • 3. CONTENTS 1) SCR 2) TRAIC 3) GTO 4) BJT 5) IGBT 6) MOSFET 7) R-FIRING CKT 8) RC-FIRING CKT 9) UJT-FIRING CKT
  • 4. SILICON CONTROLLED RECTIFIER (SCR) 7000 v 5000 Amp
  • 5. V-I Characteristics of SCR
  • 6. APPLICATIONS OF SCR :- • Speed control for motors • Battery-charging regulator • Temperature controller circuit • Emergency-lighting system • Temperature control for electric hot plate • Dimmer switch for domestic lighting • Dimmer control for stage lighting.
  • 7. Triac 1200 V 1000 Amp
  • 8. SYMBOL & LAYER DIAGRAM
  • 9. V-I CHRACTERISTICS OF TRAIC
  • 10. Applications of the TRIAC  The TRIAC as a bidirectional thyristor has various applications. Some of the popular applications of the TRIAC are as follows: (i) In speed control of single-phase ac series or universal motors. (ii) In food mixers and portable drills. (iii) In lamp dimming and heating control. (iv) In zero-voltage switched ac relay.
  • 11. GATE TURN OFF THYRISTOR (GTO) 5000 v 3000 Amp
  • 12. CIRCUIT SYMBOL AND STRUCTURE OF GTO
  • 13. V-I CHRATERISTICS OF GTO
  • 14. GTO Applications • Counters • Pulse generators • Oscillators • Voltage regulators
  • 15. Bipolar Junction Transistor (BJT) 1400 v 400 Amp
  • 16. LAYER DIAGRAM
  • 17. V-I CHARACTERISTIC OF BJT
  • 18. Insulated Gate Bipolar Transistor (IGBT) 1200 v 500 Amp
  • 19. Vertical cross section of an IGBT
  • 20. V-I characteristics of an IGBT
  • 21. APPLICATIONS:  The IGBT is mostly used in high-speed switching devices. They have switching speeds greater than those of bipolar power transistors.  Robot welding machine.  Uninterruptible Power Supply.  Motor control.
  • 22. Metal Oxide Semiconductor Field Effect Transistor (MOSFET ) 1000 v 50 Amp
  • 23. Schematic construction of a MOSFET
  • 24. V-I CHARATERISTIC OF MOSFET
  • 25. Applications of Power Devices
  • 26. R-FIRING CIRCUIT
  • 27. R-C FIRING CIRCUIT
  • 28. UJT TRIGRING CIRCUIT
  • 29. UJT-Firing Circuit & Electronic Fan Regulator
  • 30. THE END THANK YOU

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