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Transactions on engineering and sciences an interleaved buck-boost converter for high efficient power conversion.
| Content Provider | CiteSeerX |
|---|---|
| Author | Subramanian, R. Siva |
| Abstract | This paper proposes a new interleaved buck converter (IBC) having low switching losses and improved step-down conversion ratio, which is suitable for the applications where the input voltage is high and the operating duty is below 50%. It is similar to the conventional IBC, but two active switches are connected in series and a coupling capacitor is employed in the power path, such as Cuk, Sepic, and Zeta converters. The proposed IBC shows that since the voltage stress across all the active switches is half of the input voltage before turn-on or after turn-off when the operating duty is below 50%, the capacitive discharging and switching losses can be reduced considerably. This allows the proposed IBC to have higher efficiency and operate with higher switching frequency. In addition, the proposed IBC has a higher step-down conversion ratio and a smaller output current ripple compared with a conventional IBC. The features, operation principles, and relevant analysis results of the proposed IBC are presented in this paper. The validity of this study is confirmed by the experimental results of prototype converters with 150–200V input, 24V/10A output. Index Terms—Buck converter, interleaved, low switching loss. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Interleaved Buck-boost Converter High Efficient Power Conversion Active Switch Low Switching Loss Operating Duty Step-down Conversion Ratio Input Voltage Conventional Ibc Relevant Analysis Result Zeta Converter Prototype Converter Coupling Capacitor Index Term Buck Converter Switching Frequency Capacitive Discharging Voltage Stress New Interleaved Buck Converter Output Current Ripple Switching Loss Experimental Result Power Path Operation Principle |
| Content Type | Text |
| Resource Type | Article |
