{"title":"A Hybrid Single-Inductor Bipolar-Output Converter With a Concise PWM Control for AMOLED Displays","authors":"Ji Jin, Weiwei Xu, Lin Cheng","doi":"10.1109/jssc.2024.3456190","DOIUrl":"https://doi.org/10.1109/jssc.2024.3456190","url":null,"abstract":"","PeriodicalId":13129,"journal":{"name":"IEEE Journal of Solid-state Circuits","volume":"20 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142245699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaodong Meng;Xing Li;Chi-Ying Tsui;Wing-Hung Ki;Weiqiang Liu
{"title":"A 13.56-MHz Primary Driver With Fractional Capacitance Auto-Tuning Loop for Wireless-Powered Implantable Medical Devices","authors":"Xiaodong Meng;Xing Li;Chi-Ying Tsui;Wing-Hung Ki;Weiqiang Liu","doi":"10.1109/JSSC.2024.3414159","DOIUrl":"10.1109/JSSC.2024.3414159","url":null,"abstract":"A primary driver with a fractional capacitance (FC) auto-tuning loop (ATL) for wireless-powered biomedical devices is presented. The proposed ATL maintains the resonance of the primary LC tank against varying inductance over a wide range in real time. The analog ATL has a wide loop bandwidth and achieves phase locking within six cycles. The fractional capacitor is realized with a switch-controlled capacitor. By varying the turn-on time of the switch, the effective capacitance is changed, which tunes the resonant frequency of the primary LC tank. The primary driver is a full-bridge Class-D power amplifier (PA). High-side NMOS power switches are driven by bootstrap circuits. An adaptive offset controller is proposed to compensate for the delays of comparators to enhance tuning accuracy. The chip is fabricated using a 0.18-\u0000<inline-formula> <tex-math>$mu $ </tex-math></inline-formula>\u0000m bipolar-CMOS-DMOS (BCD) process, and the active area is 0.66 mm2. The system operates at 13.56 MHz and maintains both zero-voltage switching (ZVS) and zero-current switching (ZCS) in a steady state. The maximum PA output power is 200 mW, the measured tuning range is 31.5%, and the tuning error is 1.89 ns.","PeriodicalId":13129,"journal":{"name":"IEEE Journal of Solid-state Circuits","volume":"59 10","pages":"3218-3231"},"PeriodicalIF":4.6,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142236581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haidam Choi;Song-I Cheon;Gichan Yun;Sein Oh;Ji-Hoon Suh;Sohmyung Ha;Minkyu Je
{"title":"A Bio-Impedance Readout IC With Complex-Domain Noise-Correlated Baseline Cancellation","authors":"Haidam Choi;Song-I Cheon;Gichan Yun;Sein Oh;Ji-Hoon Suh;Sohmyung Ha;Minkyu Je","doi":"10.1109/JSSC.2024.3439865","DOIUrl":"10.1109/JSSC.2024.3439865","url":null,"abstract":"This article presents a bio-impedance (bioZ) readout IC featuring a complex-domain noise-correlated baseline cancellation to overcome the limitation of the conventional baseline cancellation with the real-domain noise correlation. The proposed technique is especially beneficial in cases with significant phase shifts between the excitation current from the current generator (CG) and the input voltage signal produced across the bioZ, through which the CG current flows. This technique employs a tunable reference impedance (TRI) and adaptively adjusts it to match the bioZ in both magnitude and phase, thereby achieving a complex-domain correlation of CG noise. By flowing an identical CG current through both the TRI and bioZ, the noise voltages across the TRI and bioZ caused by the CG current become closely correlated with each other, even in the presence of substantial phase shifts, enabling effective CG noise removal after baseline subtraction. Furthermore, this work proposes a differential-difference current-balancing instrumentation amplifier (DD-CBIA) with quiet chopping for baseline subtraction, offering low power consumption, wide input range, and low input-dependent noise. Measurement results demonstrate significant enhancements in noise performance by a factor of 2.47 and 4.88 for the bioZs with phases of 30° and 60°, respectively, achieving a signal-to-noise ratio (SNR) of 101.5 dB and a figure of merit (FoM) of 150.0 dB. Validation through human-subject experiments using two-electrode configurations on the chest and wrist further supports the effectiveness of the proposed bioZ readout IC.","PeriodicalId":13129,"journal":{"name":"IEEE Journal of Solid-state Circuits","volume":"59 11","pages":"3538-3548"},"PeriodicalIF":4.6,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142236580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Baochuang Wang, Yiling Xie, Lin Cheng, Jianping Guo
{"title":"A Single Li-Ion Battery Powered Buck Converter With $>$90% Efficiency Over 10-$mu$A to 500-mA Loading Range by Utilizing Compensator-Based Built-In Mode Tracking Technology","authors":"Baochuang Wang, Yiling Xie, Lin Cheng, Jianping Guo","doi":"10.1109/jssc.2024.3454078","DOIUrl":"https://doi.org/10.1109/jssc.2024.3454078","url":null,"abstract":"","PeriodicalId":13129,"journal":{"name":"IEEE Journal of Solid-state Circuits","volume":"63 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142236584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Masoud Pashaeifar, Anil Kumar Kumaran, Leo C. N. de Vreede, Morteza S. Alavi
{"title":"A Chain-Weaver Balanced Power Amplifier With an Embedded Impedance/Power Sensor","authors":"Masoud Pashaeifar, Anil Kumar Kumaran, Leo C. N. de Vreede, Morteza S. Alavi","doi":"10.1109/jssc.2024.3453213","DOIUrl":"https://doi.org/10.1109/jssc.2024.3453213","url":null,"abstract":"","PeriodicalId":13129,"journal":{"name":"IEEE Journal of Solid-state Circuits","volume":"4 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142231247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A 12-to-1–1.8-V Hybrid DC–DC Converter With a Charge Converging Phase for Inductor Current Reduction","authors":"Yichao Ji, Ji Jin, Lin Cheng","doi":"10.1109/jssc.2024.3453505","DOIUrl":"https://doi.org/10.1109/jssc.2024.3453505","url":null,"abstract":"","PeriodicalId":13129,"journal":{"name":"IEEE Journal of Solid-state Circuits","volume":"11 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142231246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A 65 nm General-Purpose Compute-in-Memory Processor Supporting Both General Programming and Deep Learning Tasks","authors":"Yuhao Ju, Yijie Wei, Jie Gu","doi":"10.1109/jssc.2024.3453114","DOIUrl":"https://doi.org/10.1109/jssc.2024.3453114","url":null,"abstract":"","PeriodicalId":13129,"journal":{"name":"IEEE Journal of Solid-state Circuits","volume":"10 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142174893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}