科研之友
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摘要
Resonant current generated in one phase of two interleaved buck converters is injected into the switched node of the other phase to turn on the active switch at zero voltage over wide load range, and to turn off the synchronous switch at near-zero current at rated load. This idea is applied to an interleaved two-phase buck converter with output voltage regulated by extended duty ratio. Parametric analysis is performed to study the impact of resonant components on voltage and current stresses. The expectations were validated by a 2 MHz converter with 12 V input, 3.3 V at 20 A output, and peak efficiency of 93.5%.
- 出版日期2017-11
