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Resonant Converter

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Resonant Converter

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Resonant Converter

  1. 1. Jyotiprakash LenkaDept. of Electrical &Electronics Engineering Regd No-1021288015 4/13/2013 1
  2. 2.  Introduction Classification Conclusion Reference 4/13/2013 2
  3. 3.  Resonant inverters are electrical inverter based on resonant current oscillation. It is known as DC to DC Converter or Dc to Ac PWM inverter. Main function is to reduce switching losses of the devices(MOSFET&IGBT). 4/13/2013 3
  4. 4.  The Resonant Converter broadly Classified into Eight types. Those are:-1. Series Resonant inverter2. Parallel Resonant inverter3. Class E Resonant Converter4. Class E Resonant Rectifier5. Zero Voltage Switching(ZVS) Resonant Converter6. Zero Current Switching(ZCS) Resonant Converter7. Two Quadrant ZVS Resonant Converter8. Resonant dc-link inverter 4/13/2013 4
  5. 5.  It is Based on resonant current oscillation. Switching device are placed in series with Load. Thyristor are work in switching device. This type of inverter produces an approximately sinusoidal wave form at a high Frequency ,ranging from 200Hz to 100KHz. 4/13/2013 5
  6. 6. Circuit dig. of series Resonant ConverterEquivalent circuit dig. Waveform 4/13/2013 6
  7. 7.  Parallel Resonant inverter is dual of series resonant inverter Current is continuously controlled , that gives better short circuit protection under fault condition 4/13/2013 7
  8. 8.  It has low switching losses , yielding a high efficiency of more than 95%. Used in low power application & high frequency electric lamp. 4/13/2013 8
  9. 9. Circuit Dig. of class E Resonant inverter & Wave Form 4/13/2013 9
  10. 10.  Class E Resonant Rectifier is based on the principle of Zero Voltage Switching(ZVS) . The diode turn off at zero voltage. A high frequency diode rectifier suffers from disadvantage that is switching losses , harmonic content. 4/13/2013 10
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  12. 12.  The ZVS Resonant Converter turn on & turn off at zero voltage. Output voltage control can be achieved by varying the frequency & operates with constant off time control . 4/13/2013 12
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  14. 14.  Zero Current Switching(ZCS) Resonant Converter turn On & turn off at zero current. This converter can operate at higher range frequency that is 1MHz to 2Mhz. 4/13/2013 14
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  17. 17.  4/13/2013 17
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  19. 19.  The DC link inverter is similar to the PWM inverter . 4/13/2013 19
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  21. 21.  It is used for high frequency application. ZCS&ZVS becomes popular and they can turn ON &turn OFF at zero voltage&current and also eliminate switching losses. In dc-link inverters , a resonant circuit is connected between the inverter & DC supply. 4/13/2013 21
  22. 22. 1. Muhammad H. Rashid ,”Power Electronics” ,Pearson publication,5th Edition, Ch-8, pg-352 to 4042. P.S. Bimbhra,”Power Electronics”, Khanna Publication,3rd Edition, Ch -11, pg-572 to 581 4/13/2013 22
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