Abstract:
This paper explores a coupled inductor based interleaved boost converter with soft-switching auxiliary circuit for high gain DC-DC application. The converter is capable o...Show MoreMetadata
Abstract:
This paper explores a coupled inductor based interleaved boost converter with soft-switching auxiliary circuit for high gain DC-DC application. The converter is capable of offering high gain with a flexible choice of turns ratio of the coupled inductor but simultaneously maintaining a reduced voltage stress on the main switch. Either a passive or active clamp circuit can be used to limit the switch voltage stress arising due to the leakage of the coupled inductor. The additional auxiliary zero-voltage-transition (ZVT) circuit allows the switching node current to be diverted to an auxiliary inductor and a transistor placed across the main inductor, thus ensuring zero voltage turn-on of the main switch and improved converter efficiency. The auxiliary devices operate at zero current switching and this addition has no effect on the control of the main boost circuit. A 300 W GaN based hardware prototype with input from 30 V-40 V and 320 V output and operating at switching frequency of 200/300 kHz has been developed to validate the converter's operation in hardware.
Date of Conference: 01-05 October 2017
Date Added to IEEE Xplore: 07 November 2017
ISBN Information:
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- IEEE Keywords
- Index Terms
- High Gain ,
- Boost Converter ,
- Soft Switching ,
- Conversion Efficiency ,
- Switching Frequency ,
- Coupling Coefficient ,
- Circuit Activity ,
- Switching Voltage ,
- Converter Operation ,
- Turns Ratio ,
- Voltage Stress ,
- Hardware Prototype ,
- Passive Circuit ,
- Auxiliary Circuit ,
- Auxiliary Device ,
- Switch Voltage Stress ,
- Transformer ,
- Voltage Drop ,
- US Government ,
- Operation Principle ,
- Inductor Current ,
- Input Current ,
- Grid-connected Converter ,
- Gate Driver ,
- Leakage Inductance ,
- Continuous Conduction Mode ,
- Switching Cycle ,
- Energy Conversion Devices ,
- Switching Transition ,
- Discharge Lamp
- Author Keywords
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- High Gain ,
- Boost Converter ,
- Soft Switching ,
- Conversion Efficiency ,
- Switching Frequency ,
- Coupling Coefficient ,
- Circuit Activity ,
- Switching Voltage ,
- Converter Operation ,
- Turns Ratio ,
- Voltage Stress ,
- Hardware Prototype ,
- Passive Circuit ,
- Auxiliary Circuit ,
- Auxiliary Device ,
- Switch Voltage Stress ,
- Transformer ,
- Voltage Drop ,
- US Government ,
- Operation Principle ,
- Inductor Current ,
- Input Current ,
- Grid-connected Converter ,
- Gate Driver ,
- Leakage Inductance ,
- Continuous Conduction Mode ,
- Switching Cycle ,
- Energy Conversion Devices ,
- Switching Transition ,
- Discharge Lamp
- Author Keywords