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- 1. Jyotiprakash Lenka Dept. of Electrical &Electronics Engineering Regd No-1021288015 4/13/2013 1
- 2. Introduction Classification Conclusion Reference 4/13/2013 2
- 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. The Resonant Converter broadly Classified into Eight types. Those are:- 1. Series Resonant inverter 2. Parallel Resonant inverter 3. Class E Resonant Converter 4. Class E Resonant Rectifier 5. Zero Voltage Switching(ZVS) Resonant Converter 6. Zero Current Switching(ZCS) Resonant Converter 7. Two Quadrant ZVS Resonant Converter 8. Resonant dc-link inverter 4/13/2013 4
- 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. Circuit dig. of series Resonant Converter Equivalent circuit dig. Waveform 4/13/2013 6
- 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. 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. Circuit Dig. of class E Resonant inverter & Wave Form 4/13/2013 9
- 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. 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. 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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- 19. The DC link inverter is similar to the PWM inverter . 4/13/2013 19
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- 21. It is used for high frequency application. ZCS&ZVS becomes popular and they can turn ON &turn OFF at zero voltage¤t and also eliminate switching losses. In dc-link inverters , a resonant circuit is connected between the inverter & DC supply. 4/13/2013 21
- 22. 1. Muhammad H. Rashid ,”Power Electronics” ,Pearson publication,5th Edition, Ch-8, pg-352 to 404 2. P.S. Bimbhra,”Power Electronics”, Khanna Publication,3rd Edition, Ch -11, pg-572 to 581 4/13/2013 22
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