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A Very High Frequency DC–DC Converter Based on a Class {bm \Phi }_{bm 2} Resonant Inverter

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4 Author(s)
Rivas, J.M. ; Lab. for Electromagn. & Electron. Syst., Massachusetts Inst. of Technol., Cambridge, MA, USA ; Leitermann, O. ; Yehui Han ; Perreault, D.J.

This paper introduces a new dc-dc converter suitable for operation at very high frequencies (VHF) under on-off control. The converter power stage is based on a resonant inverter (the Φ2 inverter) providing low switch voltage stress and fast settling time compared to other resonant topologies. A new multistage resonant gate driver suited for driving large, high-voltage RF Mosfet at VHF frequencies is also introduced. Experimental results are presented from a prototype dc-dc converter operating at 30 MHz at input voltages up to 200 V and power levels above 200 W under closed-loop control. These results demonstrate the high performance achievable with the proposed design.

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Power Electronics, IEEE Transactions on  (Volume:26 ,  Issue: 10 )