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首页> 美国政府科技报告 >Analysis of Transistor and Snubber Turn-off Dynamics in High-Frequency High-Voltage High-Power Converters
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Analysis of Transistor and Snubber Turn-off Dynamics in High-Frequency High-Voltage High-Power Converters

机译：高频高压大功率变流器晶体管和缓冲器关断动态分析

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摘要

Dc to dc converters which operate reliably and efficiently at switching frequencies high enough to effect substantial reductions in the size and weight of converter energy storage elements are studied. A two winding current or voltage stepup (buck boost) dc-to-dc converter power stage submodule designed to operate in the 2.5-kW range, with an input voltage range of 110 to 180 V dc, and an output voltage of 250 V dc is emphasized. In order to assess the limitations of present day component and circuit technologies, a design goal switching frequency of 10 kHz was maintained. The converter design requirements represent a unique combination of high frequency, high voltage, and high power operation. The turn off dynamics of the primary circuit power switching transistor and its associated turn off snubber circuitry are investigated.

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