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A New High Step-Up Voltage Ratio Soft Switching PWM Boost DC–DC Power Converter with Edge Resonant Switched Capacitor Modular
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| Author(s) |
Tomokazu MISHIMA, Yujiro TAKEUCHI, Mutsuo NAKAOKA |
| Abstract |
This paper presents a new soft switching PWM non-isolated boost DC-DC converter embedding an edge resonant switched capacitor (ER-SWC) modular. The soft switching PWM boost DC--DC converter treated here can achieve a high frequency zero current switching (ZCS) turn-on and zero voltage switching (ZVS) turn-off operations in active switches and minimize a reverse recovering current in the freewheeling diode under DCM including CRM conditions in the input inductor current. Those advantageous properties enable a wide range of soft switching operations together with a high step-up voltage conversion ratio due to the edge resonance in the ER-SWC modular, which results in the high efficiency power conversion. For demonstrating the effectiveness of the new soft switching PWM boost DC-DC converter, a 1 kW-40 kHz laboratory prototype is evaluated in experiments, followed by the design guideline of the DC-DC converter and a theoretical analysis. Then, the performances of the proposed soft switching PWM boost DC-DC converter are discussed from a practical point of view. |
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| Filename: | 0304-epe2011-full-12482030.pdf |
| Filesize: | 550.2 KB |
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| Type |
Members Only |
| Date |
Last modified 2012-01-26 by System |
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