Junwei Huang;Zhiguo Tong;Chi-Seng Lam;Xiangyu Mao;Rui P. Martins;Yan Lu
{"title":"多路径电感器优先电感器接地开关电容器混合直流-直流转换器","authors":"Junwei Huang;Zhiguo Tong;Chi-Seng Lam;Xiangyu Mao;Rui P. Martins;Yan Lu","doi":"10.1109/JSSC.2024.3485210","DOIUrl":null,"url":null,"abstract":"Energy-efficient compact smart devices operate at a supply voltage as low as 0.5 V, powered by either a battery (3–4.2 V) or a universal serial bus (USB) port (5 V), demanding a voltage conversion ratio (VCR) as large as 10:1. This work proposes a multi-path inductor-first inductor-on-ground switched-capacitor (L<sup>2</sup>SC) hybrid buck dc-dc converter for large VCR and high-power density. The inductors on the input and the ground nodes combine and reuse the parasitic inductors from PCB routing and bonding wire, enable a continuous input current, and relieve the electromagnetic interference (EMI) issue. In addition, the two inductors in this converter operate in an interleaved fashion, obtaining reduced output current ripple. The SC network reduces the average inductor current and enlarges the output capability. This work, fabricated in a 180-nm BCD process, uses only 2-V NMOS power transistors, withstanding 3–5-V input and delivering 0.5–1.2-V output. This work achieves a peak efficiency of 96.1% with a high chip-area current density of 1.02 A/mm<sup>2</sup>.","PeriodicalId":13129,"journal":{"name":"IEEE Journal of Solid-state Circuits","volume":"60 6","pages":"2182-2193"},"PeriodicalIF":5.6000,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Multi-Path Inductor-First Inductor-on-Ground Switched-Capacitor Hybrid DC-DC Converter\",\"authors\":\"Junwei Huang;Zhiguo Tong;Chi-Seng Lam;Xiangyu Mao;Rui P. Martins;Yan Lu\",\"doi\":\"10.1109/JSSC.2024.3485210\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Energy-efficient compact smart devices operate at a supply voltage as low as 0.5 V, powered by either a battery (3–4.2 V) or a universal serial bus (USB) port (5 V), demanding a voltage conversion ratio (VCR) as large as 10:1. This work proposes a multi-path inductor-first inductor-on-ground switched-capacitor (L<sup>2</sup>SC) hybrid buck dc-dc converter for large VCR and high-power density. The inductors on the input and the ground nodes combine and reuse the parasitic inductors from PCB routing and bonding wire, enable a continuous input current, and relieve the electromagnetic interference (EMI) issue. In addition, the two inductors in this converter operate in an interleaved fashion, obtaining reduced output current ripple. The SC network reduces the average inductor current and enlarges the output capability. This work, fabricated in a 180-nm BCD process, uses only 2-V NMOS power transistors, withstanding 3–5-V input and delivering 0.5–1.2-V output. This work achieves a peak efficiency of 96.1% with a high chip-area current density of 1.02 A/mm<sup>2</sup>.\",\"PeriodicalId\":13129,\"journal\":{\"name\":\"IEEE Journal of Solid-state Circuits\",\"volume\":\"60 6\",\"pages\":\"2182-2193\"},\"PeriodicalIF\":5.6000,\"publicationDate\":\"2024-11-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Journal of Solid-state Circuits\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10742623/\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Journal of Solid-state Circuits","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10742623/","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
A Multi-Path Inductor-First Inductor-on-Ground Switched-Capacitor Hybrid DC-DC Converter
Energy-efficient compact smart devices operate at a supply voltage as low as 0.5 V, powered by either a battery (3–4.2 V) or a universal serial bus (USB) port (5 V), demanding a voltage conversion ratio (VCR) as large as 10:1. This work proposes a multi-path inductor-first inductor-on-ground switched-capacitor (L2SC) hybrid buck dc-dc converter for large VCR and high-power density. The inductors on the input and the ground nodes combine and reuse the parasitic inductors from PCB routing and bonding wire, enable a continuous input current, and relieve the electromagnetic interference (EMI) issue. In addition, the two inductors in this converter operate in an interleaved fashion, obtaining reduced output current ripple. The SC network reduces the average inductor current and enlarges the output capability. This work, fabricated in a 180-nm BCD process, uses only 2-V NMOS power transistors, withstanding 3–5-V input and delivering 0.5–1.2-V output. This work achieves a peak efficiency of 96.1% with a high chip-area current density of 1.02 A/mm2.
期刊介绍：
The IEEE Journal of Solid-State Circuits publishes papers each month in the broad area of solid-state circuits with particular emphasis on transistor-level design of integrated circuits. It also provides coverage of topics such as circuits modeling, technology, systems design, layout, and testing that relate directly to IC design. Integrated circuits and VLSI are of principal interest; material related to discrete circuit design is seldom published. Experimental verification is strongly encouraged.
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