This article proposes a hybrid boost converter that eliminates the right-half-plane (RHP) zero. The proposed converter can be designed with a broad bandwidth up to a tenth of the switching frequency, such that the converter can attain fast transient response as a buck converter. Besides, it features a left-half-plane zero which helps simplify the compensation network. With only one switch to tolerate the output voltage, the proposed boost converter can achieve high efficiency. Meanwhile, the voltage conversion ratio (CR) of the proposed converter is identical to that of the conventional boost converter (CBC), thereby enabling a wide range of output voltage. The dc characteristics, the driver design, the transfer function derivation, the compensation design, and the current-limiting self-startup circuit are also discussed in this article. Measurement results demonstrate that a peak efficiency of 95.1% is obtained. Given an input voltage of 4.2 V and output voltage of 6 V, with step-up and step-down load current ranging from 50 to 500 mA in less than 160 ns, the settling time is merely 2.8 μ\mu s.

中文翻译：

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响应时间为 2.8 $\mu$s、效率为 95.1% 的混合升压转换器，具有 RHP 零消除功能，适用于快速瞬态应用


本文提出了一种消除右半平面 (RHP) 零的混合升压转换器。所提出的转换器可以设计成具有高达开关频率十分之一的宽带宽，使得该转换器可以获得作为降压转换器的快速瞬态响应。此外，它还具有左半平面零，有助于简化补偿网络。只需一个开关即可承受输出电压，所提出的升压转换器即可实现高效率。同时，所提出的转换器的电压转换比（CR）与传统的升压转换器（CBC）相同，从而能够实现较宽的输出电压范围。本文还讨论了直流特性、驱动器设计、传递函数推导、补偿设计和限流自启动电路。测量结果表明，获得了 95.1% 的峰值效率。假设输入电压为 4.2 V，输出电压为 6 V，升压和降压负载电流范围为 50 至 500 mA，时间小于 160 ns，稳定时间仅为 2.8 μμs。