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The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems最新文献

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Design and Optimization of Magnetic-core Solenoid Inductor for Multi-phase Buck Converter 多相降压变换器磁芯电磁电感的设计与优化
The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems Pub Date : 2020-08-01 DOI: 10.1109/MWSCAS48704.2020.9184471
M. Vemuri, Umamaheswara Rao Tida
{"title":"Design and Optimization of Magnetic-core Solenoid Inductor for Multi-phase Buck Converter","authors":"M. Vemuri, Umamaheswara Rao Tida","doi":"10.1109/MWSCAS48704.2020.9184471","DOIUrl":"https://doi.org/10.1109/MWSCAS48704.2020.9184471","url":null,"abstract":"Due to heterogeneous integration, there is an increased demand for on-chip voltage regulators to provide many voltage domains for efficient operation of the system. Towards this, planar magnetic-core based inductors gained popularity due to their increased inductance density for on-chip buck converter realization. To ensure proper operation of the converter, the magnetic-core should not saturate, and over-design of the inductor decreases the efficiency of the converter significantly. Also, the magnetic-core area budget allocated to the converter implementation will be limited. This paper details the design and analysis of magnetic-core solenoid inductor based multi-phase buck converter. Also, an optimization framework to design an efficient multi-phase buck converter for the given specifications with the magnetic-core solenoid inductor is proposed. Full-wave simulations on commercial tool show that the multi-phase buck converter designed with our optimization framework achieves 92.8% efficiency and 0.5mV voltage ripple for the load current of 500 mA with the solenoid inductor is implemented with 0.397 mm2 magnetic-core area for the given specifications.","PeriodicalId":89019,"journal":{"name":"The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems","volume":"37 1","pages":"933-936"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86894196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
DC-100 kHz Tunable Readout IC for Impedance Spectroscopy and Amperometric Measurement of Electrochemical Sensors. 用于电化学传感器阻抗光谱和安培测量的dc - 100khz可调谐读出IC。
The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems Pub Date : 2020-08-01 Epub Date: 2020-09-02 DOI: 10.1109/mwscas48704.2020.9184465
Boyu Shen, Matthew L Johnston
{"title":"DC-100 kHz Tunable Readout IC for Impedance Spectroscopy and Amperometric Measurement of Electrochemical Sensors.","authors":"Boyu Shen,&nbsp;Matthew L Johnston","doi":"10.1109/mwscas48704.2020.9184465","DOIUrl":"https://doi.org/10.1109/mwscas48704.2020.9184465","url":null,"abstract":"<p><p>This paper presents a low-noise, front-end sensor IC that includes both AC impedance spectroscopy and DC amperometric measurement capabilities for electrochemical and biosensor applications. A common-gate current buffer topology is proposed that supports both current-mode and voltage-mode sensor signals to allow an input frequency range from DC to 100 kHz. Low-noise operation is achieved across a wide input frequency range using tunable high-pass and low-pass frequency response. In addition, an incremental delta-sigma modulator with embedded frequency response analysis serves as both on-chip impedance analyzer and current-driven analog-to-digital converter. Implemented using a 0.18 μm CMOS process, this work achieves 45 fA/√Hz input current noise density at 1 kHz. Input dynamic range exceeding 80 dB is achieved up to 10 kHz bandwidth, with a maximum of 104 dB dynamic range at 10 Hz.</p>","PeriodicalId":89019,"journal":{"name":"The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems","volume":"2020 ","pages":"651-654"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/mwscas48704.2020.9184465","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38703896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Improving Alias Rejection in Two-Stage Comb Filter for Multiple-of-Three Decimation 改进三倍抽取两级梳状滤波器的混叠抑制
The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems Pub Date : 2018-01-01 DOI: 10.1109/MWSCAS.2018.8623852
G. Jovanovic-Dolecek
{"title":"Improving Alias Rejection in Two-Stage Comb Filter for Multiple-of-Three Decimation","authors":"G. Jovanovic-Dolecek","doi":"10.1109/MWSCAS.2018.8623852","DOIUrl":"https://doi.org/10.1109/MWSCAS.2018.8623852","url":null,"abstract":"","PeriodicalId":89019,"journal":{"name":"The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems","volume":"267 1","pages":"635-638"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75157865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Distinguished keynote speaker I 尊敬的第一主讲人
The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems Pub Date : 2017-08-01 DOI: 10.1109/MWSCAS.2017.8052840
L. Salmon
{"title":"Distinguished keynote speaker I","authors":"L. Salmon","doi":"10.1109/MWSCAS.2017.8052840","DOIUrl":"https://doi.org/10.1109/MWSCAS.2017.8052840","url":null,"abstract":"Linton Salmon joined DARPA as a program manager in September 2014. His research interests include semiconductor process and design technology and its application to defense systems. Prior to joining DARPA, Dr. Salmon spent 15 years in executive roles directing development of CMOS technology from the 130nm through the 7nm node at GlobalFoundries, Texas Instruments and Advanced Micro Devices. He focused on development of semiconductor processes, technology enablement and ramping of developed technology into production in 300mm factories globally.","PeriodicalId":89019,"journal":{"name":"The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems","volume":"134 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83069259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Catheter-Mounted CMOS Front-Ends for Broadband Intravascular Ultrasonic Imaging. 用于宽带血管内超声波成像的导管安装式 CMOS 前端。
The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems Pub Date : 2017-08-01 Epub Date: 2017-10-02 DOI: 10.1109/mwscas.2017.8052938
Steve J A Majerus, Soumyajit Mandal, Aaron Fleischman
{"title":"Catheter-Mounted CMOS Front-Ends for Broadband Intravascular Ultrasonic Imaging.","authors":"Steve J A Majerus, Soumyajit Mandal, Aaron Fleischman","doi":"10.1109/mwscas.2017.8052938","DOIUrl":"10.1109/mwscas.2017.8052938","url":null,"abstract":"<p><p>Intravascular ultrasonic (IVUS) imaging catheters currently use ceramic piezoelectric transducers to form radial images of blood vessel walls. Further improvements in image quality may be enabled through Capacitive and Piezoelectric Micromachined Ultrasonic Transducers (CMUTs and PMUTs). Polymer PMUTs offer many benefits in imaging quality, however, the low acoustic sensitivity and high electrical impedance of polymer PMUTs prevents unbuffered use with 50-Ω IVUS cables. Here, we present the design and optimization of an integrated CMOS front-end specifically designed to be integrated on a 0.8-mm imaging catheter. A series-duplexer topology with active limiter was selected for simplicity of integration, and compatibility with conventional high-voltage IVUS pulser-receiver systems. Noise optimization of the front-end revealed that an impedance-matching optimum exists, which balances the system parasitic capacitances relative to the transducer complex impedance. Optimized design equations compared favorably to simulation results in predicting front-end bandwidth and transducer-referred SNR. Large-signal transient simulation showed that the front-end can withstand 100-V pulses while recovering in 240 ns for echo reception. The integrated front-end occupied 0.74 × 1.8 mm die area (including large solder-bump bond pads), with an estimated transducer-referred noise floor of 6.5 <math> <mrow> <mrow> <msub><mrow><mi>n</mi> <mi>V</mi></mrow> <mrow><mi>R</mi> <mi>M</mi> <mi>S</mi></mrow> </msub> </mrow> <mo>/</mo> <mrow><msqrt><mi>H</mi> <mi>z</mi></msqrt> </mrow> </mrow> </math> over a 100-MHz imaging bandwidth.</p>","PeriodicalId":89019,"journal":{"name":"The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems","volume":"2017 ","pages":"373-376"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8211115/pdf/nihms-1690187.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39249284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Damping in aluminum nitride contour mode MEMS resonators 氮化铝轮廓模MEMS谐振器的阻尼
The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems Pub Date : 2017-01-01 DOI: 10.1109/MWSCAS.2017.8052857
J. S. Fernandez
{"title":"Damping in aluminum nitride contour mode MEMS resonators","authors":"J. S. Fernandez","doi":"10.1109/MWSCAS.2017.8052857","DOIUrl":"https://doi.org/10.1109/MWSCAS.2017.8052857","url":null,"abstract":"","PeriodicalId":89019,"journal":{"name":"The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems","volume":"266 1","pages":"49-52"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74934735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improving alias rejection in comb decimation filters for odd decimation factors 改进奇数抽取因子的梳状抽取滤波器的混叠抑制
The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems Pub Date : 2017-01-01 DOI: 10.1109/MWSCAS.2017.8052944
G. Jovanovic-Dolecek, J. Carmona-Suarez
{"title":"Improving alias rejection in comb decimation filters for odd decimation factors","authors":"G. Jovanovic-Dolecek, J. Carmona-Suarez","doi":"10.1109/MWSCAS.2017.8052944","DOIUrl":"https://doi.org/10.1109/MWSCAS.2017.8052944","url":null,"abstract":"","PeriodicalId":89019,"journal":{"name":"The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems","volume":"33 1","pages":"397-400"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73502456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Area-optimized Lattice-based cryptographic processor for constrained devices 受限设备的基于格子的区域优化密码处理器
The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems Pub Date : 2017-01-01 DOI: 10.1109/MWSCAS.2017.8052914
Dongsheng Liu, Cong Zhang, Hui Lin
{"title":"Area-optimized Lattice-based cryptographic processor for constrained devices","authors":"Dongsheng Liu, Cong Zhang, Hui Lin","doi":"10.1109/MWSCAS.2017.8052914","DOIUrl":"https://doi.org/10.1109/MWSCAS.2017.8052914","url":null,"abstract":"","PeriodicalId":89019,"journal":{"name":"The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems","volume":"1 1","pages":"277-280"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79035404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Building a Surface Atlas of Hippocampal Subfields From High Resolution T2-weighted MRI Scans Using Landmark-free Surface Registration. 利用无地标表面注册从高分辨率 T2 加权磁共振成像扫描构建海马亚场表面图谱
The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems Pub Date : 2016-10-01 Epub Date: 2017-03-06 DOI: 10.1109/MWSCAS.2016.7870109
Shan Cong, Maher Rizkalla, Paul Salama, Shannon L Risacher, John D West, Yu-Chien Wu, Liana Apostolova, Eileen Tallman, Andrew J Saykin, Li Shen
{"title":"Building a Surface Atlas of Hippocampal Subfields From High Resolution T2-weighted MRI Scans Using Landmark-free Surface Registration.","authors":"Shan Cong, Maher Rizkalla, Paul Salama, Shannon L Risacher, John D West, Yu-Chien Wu, Liana Apostolova, Eileen Tallman, Andrew J Saykin, Li Shen","doi":"10.1109/MWSCAS.2016.7870109","DOIUrl":"10.1109/MWSCAS.2016.7870109","url":null,"abstract":"<p><p>The hippocampus is widely studied in neuroimaging field as it plays important roles in memory and learning. However, the critical subfield information is often not explored in most hippocampal studies. We previously proposed a method for hippocampal subfield morphometry by integrating FreeSurfer, FSL, and SPHARM tools. But this method had some limitations, including the analysis of T1-weighted MRI scans without detailed subfield information and hippocampal registration without using important subfield information. To bridge these gaps, in this work, we propose a new framework for building a surface atlas of hippocampal subfields from high resolution T2-weighted MRI scans by integrating state-of-the-art methods for automated segmentation of hippocampal subfields and landmark-free, subfield-aware registration of hippocampal surfaces. Our experimental results have shown the promise of the new framework.</p>","PeriodicalId":89019,"journal":{"name":"The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems","volume":"2016 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5995468/pdf/nihms903839.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36221234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Testing and characterization of a MEMS micro-cantilever system MEMS微悬臂系统的测试与表征
The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems Pub Date : 2016-01-01 DOI: 10.1109/MWSCAS.2016.7870072
S. Kafumbe, A. Harris, J. Burdess
{"title":"Testing and characterization of a MEMS micro-cantilever system","authors":"S. Kafumbe, A. Harris, J. Burdess","doi":"10.1109/MWSCAS.2016.7870072","DOIUrl":"https://doi.org/10.1109/MWSCAS.2016.7870072","url":null,"abstract":"","PeriodicalId":89019,"journal":{"name":"The ... Midwest Symposium on Circuits and Systems conference proceedings : MWSCAS. Midwest Symposium on Circuits and Systems","volume":"310 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76010916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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