DC–DC boost converters with better performances, including improved voltage gain, efficiency, power density, and reliability, are urgently needed for wide conversion range applications. In this article, a single-inductor boost converter (SLBC) with ultrahigh voltage boosting capability is proposed and analyzed. For the SLBC, low-voltage-rating MOSFET with small on-resistance can be chosen and losses of switches can be reduced owing to the lower switches voltage stress and intrinsic small duty cycle, which are conducive to enhance the system efficiency. The single inductor of the SLBC is in series with its input source, therefore, continuous input current and high power density are attainable. Moreover, the SLBC has common grounded input and output terminals, which is benefit to avoid the d u /d t issues and achieve reliable output. The operational principles of steady-state mode and small-signal mode are presented to analyses the SLBC in detail. Based on these, performance comparisons with other typical converters and 250-W experiment prototype are implemented to validate the feasibility and effectiveness of the SLBC.

中文翻译：

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具有超高升压增益，较低开关电压应力，连续输入电流和公共接地结构的单电感升压转换器

宽转换范围的应用迫切需要具有更好性能的DC-DC升压转换器，包括改善的电压增益，效率，功率密度和可靠性。本文提出并分析了具有超高压升压能力的单电感升压转换器（SLBC）。对于SLBC，可以选择导通电阻小的低压额定MOSFET，并且由于较低的开关电压应力和固有的小占空比，可以减少开关损耗，这有利于提高系统效率。SLBC的单个电感器与其输入源串联，因此，可以获得连续的输入电流和高功率密度。此外，SLBC具有公共接地的输入和输出端子，这有助于避免d ü / d Ť并实现可靠的输出。提出了稳态模式和小信号模式的工作原理来详细分析SLBC。在此基础上，与其他典型转换器和250W实验原型进行了性能比较，以验证SLBC的可行性和有效性。