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High-Performance Switched-Capacitor Boost–Buck Integrated Power Converters

机译:高性能开关电容器升压-降压集成电源转换器

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This paper presents the design of integrated boost and buck switched-capacitor power converters with high efficiency and fast start-up time. An analysis method is determined to evaluate the key performance parameters of integrated power converters, and techniques are proposed to improve the energy conversion efficiency and the dynamic response. Boost and buck structures are modeled and compared in static and transient conditions, including the losses due to parasitic elements. A switch bootstrapping technique prevents short-circuit losses, improves driving capability and start-up time, and enhances the overall efficiency. Moreover, the application of a charge-reuse technique reduces the dynamic power losses of the integrated structures. Prototypes of the integrated power converters were fabricated in a 180-nm CMOS process. Measurement results based on the proposed techniques are presented, demonstrating the improvements in steady-state and transient characteristics with a good correlation between measured and predicted results.
机译:本文提出了一种高效,快速启动时间的集成升压和降压开关电容器电源转换器的设计。确定了一种分析方法来评估集成功率转换器的关键性能参数,并提出了提高能量转换效率和动态响应的技术。对升压和降压结构进行了建模,并在静态和瞬态条件下进行了比较,包括由于寄生元件引起的损耗。开关自举技术可防止短路损耗,提高驱动能力和启动时间,并提高整体效率。此外,电荷重用技术的应用减少了集成结构的动态功率损耗。集成功率转换器的原型以180 nm CMOS工艺制造。提出了基于所提出技术的测量结果,证明了稳态和瞬态特性的改进,并且测量结果与预测结果之间具有良好的相关性。

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