A 91.7% Peak-Efficiency 48V-to-1V Pseudo Two-Stage Two-Phase Hybrid Buck Converter

IF 4.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-07-30 DOI:10.1109/TCSII.2025.3593898

Young-Ju Oh;Chan-Ho Lee;Jeong-Hun Kim;Hyeonho Park;Dowon Jeong;Sung-Wan Hong

引用次数: 0

Abstract

This brief proposes a pseudo two-stage two-phase (P2S-2P) buck converter that enhances power efficiency by reducing current in the high-voltage (HV) domain, which has large parasitic components. In contrast, the low-voltage (LV) domain, which has small parasitic components, supplies the majority of the output current (IO) through two inductors that automatically balance their currents. The proposed converter achieves a peak efficiency of 91.7% at an input voltage (VIN) of 48V, an output voltage (VO) of 1V, and the IO of 1.5A. The chip was fabricated using a 180-nm BCD process.

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91.7%峰值效率48v - 1v伪两级两相混合降压变换器

本文提出了一种伪两级两相（P2S-2P）降压变换器，通过降低高压（HV）域中的电流来提高功率效率，该高压（HV）域中具有较大的寄生元件。相比之下，具有小寄生元件的低压（LV）域通过两个自动平衡其电流的电感提供大部分输出电流（IO）。该转换器在输入电压为48V、输出电压为1V、IO为1.5A时的峰值效率为91.7%。该芯片采用180nm BCD工艺制备。

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

IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程：电子与电气

CiteScore

7.90

自引率

20.50%

发文量

883

审稿时长

3.0 months

期刊介绍： TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.