用于低压应用的低纹波开关电容DC-DC上变频器

Proceedings of Second IEEE Asia Pacific Conference on ASICs. AP-ASIC 2000 (Cat. No.00EX434) Pub Date : 2000-08-28 DOI:10.1109/APASIC.2000.896896

Seung-Chul Lee, Dong-soo Park, Jung-Hee Song, Myung-Whan Choi, Seung-Hoon Lee

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引用次数: 25

摘要

本文介绍了一种高效率、低纹波输出的开关电容型DC-DC上变频器。在所提出的DC-DC变换器中，顺序工作的相同电荷泵将输出电压波动的幅度降低到传统变换器的20%。在输出级附近采用PMOS开关的新型电荷泵使DC-DC变换器的功率效率提高了10%。将所提出的DC-DC变换器作为测试载体，应用于对电源噪声敏感的锁相环路。所有电路都在0.65-/spl mu/m的CMOS工艺中进行了模拟和制造。

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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A low-ripple switched-capacitor DC-DC up converter for low-voltage applications

This paper describes a switched-capacitor type DC-DC up converter with high efficiency and low-ripple output. Identical charge pumps operating sequentially in the proposed DC-DC converter reduce the magnitude of output voltage ripples to 20% of the conventional converters. A new charge pump adopting PMOS switches near the output stage improves the power efficiency of the DC-DC converter by 10%. The proposed DC-DC converter is applied, as a test vehicle, to a phase-locked loop circuit which is sensitive to power supply noise. All circuits are simulated and fabricated in a 0.65-/spl mu/m CMOS process.

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Proceedings of Second IEEE Asia Pacific Conference on ASICs. AP-ASIC 2000 (Cat. No.00EX434)

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