A reconfigurable Buck-Boost Cross-Coupled charge Pump

IF 3 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Aeu-International Journal of Electronics and Communications Pub Date : 2024-07-23 DOI:10.1016/j.aeue.2024.155454

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引用次数: 0

Abstract

This paper presents a reconfigurable buck-boost Charge Pump (CP) based on the cross-coupled topology. The proposed CP is a switched capacitor (SC) converter merging different ratios and operation modes in one topology. The converter is able to step-up or step-down the input voltage at the output only by controlling the external connections of the circuit. By achieving various conversion ratios and operation modes, higher efficiency levels are performed maximizing the power that is delivered to the load. The reconfigurable buck-boost CP has been designed in 65 nm TSMC CMOS technology and covers an input voltage range from 1.6 V to 3.2 V and an output voltage range also from 1.6 V to 3.2 V in the boost mode and an input voltage range from 2.6 V to 3.6 V and an output voltage range from 1.4 to 1.8 V in the buck mode. In addition, efficiency estimation analysis is presented and proves how parasitic capacitances of flying capacitors affect the overall efficiency of a multi-ratio converter. The converter indicates peak efficiency equal to 77 % and delivers up to 4 mA load current.

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可重构降压-升压交叉耦合电荷泵

本文介绍了一种基于交叉耦合拓扑结构的可重构降压-升压充电泵（CP）。所提出的 CP 是一种开关电容器 (SC) 转换器，在一个拓扑结构中融合了不同的比率和工作模式。该转换器仅通过控制电路的外部连接，就能在输出端对输入电压进行升压或降压。通过实现不同的转换比率和工作模式，可实现更高的效率水平，最大限度地提高向负载输送的功率。可重构降压-升压 CP 采用 65 纳米 TSMC CMOS 技术设计，在升压模式下，输入电压范围为 1.6 V 至 3.2 V，输出电压范围为 1.6 V 至 3.2 V；在降压模式下，输入电压范围为 2.6 V 至 3.6 V，输出电压范围为 1.4 V 至 1.8 V。此外，还介绍了效率估算分析，并证明了飞行电容器的寄生电容如何影响多比率转换器的整体效率。该转换器的峰值效率为 77%，可提供高达 4 mA 的负载电流。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.