Voltage control

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A 40.68-MHz Dual-Output Wireless Power Transfer System for Millimeter-Scale Biomedical Implants

A 40.68-MHz Dual-Output Wireless Power Transfer System for Millimeter-Scale Biomedical Implants 150 150
Author(s): Tianqi Lu, Sijun Du

Abstract:

This article presents a single-link, dual-output wireless power transfer (WPT) system operating at 40.68 MHz for miniature, high-power biomedical implants. The elevated carrier frequency enables a millimeter-scale receiver (RX) coil while maintaining link efficiency and output power comparable to low-frequency WPT designs. End-to-end (E2E) efficiency is optimized through global power …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3617375
Publisher: IEEE

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A Low-Jitter Fractional-N Digital PLL Using a Quantization-Error-Compensating BBPD and an Orthogonal-Polynomial-Based LMS Calibration

A Low-Jitter Fractional-N Digital PLL Using a Quantization-Error-Compensating BBPD and an Orthogonal-Polynomial-Based LMS Calibration 150 150
Author(s): Munjae Chae, Seheon Jang, Seungjae Lee, Jaehyouk Choi

Abstract:

This work presents a 10.0–11.5-GHz fractional- $N$ digital phase-locked loop (DPLL) using the quantization-error-compensating bang–bang phase detector (QEC-BBPD) that can minimize both the static delay ( $T_{\mathrm {S}}$ ) and the dynamic delay ( $T_{\mathrm {D}}$ ) required for removing the delta-sigma modulator’s ( $\Delta \Sigma $ M) quantization-error (Q-error). Since the …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3611417
Publisher: IEEE

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A Two-Stage 12–1-V Converter Featuring Regulated Resonant SC Regulators and Collaborative Control Scheme

A Two-Stage 12–1-V Converter Featuring Regulated Resonant SC Regulators and Collaborative Control Scheme 150 150
Author(s): Shengdao Ren, Yukan Du, Menglian Zhao, Zhichao Tan, Chushan Li, Yong Ding, Wuhua Li, Wanyuan Qu

Abstract:

In the field of power converters for data centers, the two-stage architecture has received widespread attentions due to its various advantages. Especially, the switched-capacitor voltage regulator (SCVR) becomes popular as the second-stage converter owing to its high efficiency and power density. However, the SCVR suffers from poor voltage regulation and …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3609744
Publisher: IEEE

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A Fully Integrated Galvanic Isolator for Gate Drivers With Asynchronous 100/167 Mb/s ASK/FSK Full-Duplex Communication

A Fully Integrated Galvanic Isolator for Gate Drivers With Asynchronous 100/167 Mb/s ASK/FSK Full-Duplex Communication 150 150
Author(s): Lucrezia Navarin, Karl Norling, Marco Parenzan, Stefano Ruzzu, Andrea Neviani, Andrea Bevilacqua

Abstract:

A fully integrated galvanic isolator for gate drivers that supports high-speed, asynchronous, full-duplex communication is presented. Data transmission from the microcontroller to the power device is achieved using amplitude-shift keying (ASK) at 100 Mb/s, while simultaneous communication in the opposite direction is implemented using frequency-shift keying (FSK) at 167 Mb/s. …

Published in: IEEE Solid-State Circuits Letters
Page(s): 289 – 292
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3611018
Publisher: IEEE

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SLiMDO: A Single-Link Multi-Domain-Output Isolated DC–DC Converter With Passive Magnetic Flux Sharing for Local Energy Distribution and Rx Behavior Sensing-Based Global Power Modulation

SLiMDO: A Single-Link Multi-Domain-Output Isolated DC–DC Converter With Passive Magnetic Flux Sharing for Local Energy Distribution and Rx Behavior Sensing-Based Global Power Modulation 150 150
Author(s): Jianqiang Jiang, Lei Zhao, Junyao Tang, Cheng Huang

Abstract:

This article introduces a small form-factor single-link multi-domain-output (SLiMDO) isolated dc–dc converter design. The proposed design provides two regulated outputs in separate domains in the receiver (Rx) side with a single micro-transformer. These isolated Rxes achieve local voltage regulation and automatic energy distribution across domains through passive magnetic flux …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 15
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3606903
Publisher: IEEE

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A Fast Transient Response Fully Integrated LDO With a Novel Resetting Oscillator Control Method

A Fast Transient Response Fully Integrated LDO With a Novel Resetting Oscillator Control Method 150 150
Author(s): Masoud Kargaran, Amir Besharati Rad, Ali Medi

Abstract:

This article introduces a novel resetting oscillator regulator (ROR) control method for low-dropout (LDO) regulators, designed to achieve fast settling times for both load and reference input steps. The proposed ROR integrates a high-speed loop that independently functions as an oscillator in a closed-loop configuration, along with a separate high-rate …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3607941
Publisher: IEEE

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A Linear Dynamic Voltage Scaling Technique With Adaptive Minimum Voltage Headroom Tracking for Implantable Neurostimulation

A Linear Dynamic Voltage Scaling Technique With Adaptive Minimum Voltage Headroom Tracking for Implantable Neurostimulation 150 150
Author(s): Kai Cui, Honglei Xu, Yingduo Duan, Yan Lu, Xiaoya Fan, Yanzhao Ma

Abstract:

This letter presents a linear dynamic voltage scaling (DVS) technique using a dual-loop multistage charge-pump maintaining the minimum voltage headroom for implantable neurostimulation. By adopting an analog DVS with adaptive feedback divider, the stimulus current source could be always kept operating at the boundary of the saturation region and the …

Published in: IEEE Solid-State Circuits Letters
Page(s): 261 – 264
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3608096
Publisher: IEEE

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A Unified Early-Warning AVFS Design With Path Activation-Aware Monitoring Point Optimization

A Unified Early-Warning AVFS Design With Path Activation-Aware Monitoring Point Optimization 150 150
Author(s): Cai Li, Kaize Zhou, Junyi Qian, Haochang Zhi, Weiwei Shan

Abstract:

This work proposes a unified early-warning adaptive voltage-frequency scaling (AVFS) system that offers a practical low-power solution for commercial IoT devices. First, a path activation-aware monitoring point optimization strategy is proposed to mitigate the risk of illegal voltage scaling. The strategy combines the path activation evaluation with the required timing …

Published in: IEEE Solid-State Circuits Letters
Page(s): 229 – 232
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3593960
Publisher: IEEE

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A High-Density Low-Leakage and Low-Power Fully Voltage-Stacked SRAM for IoT Application

A High-Density Low-Leakage and Low-Power Fully Voltage-Stacked SRAM for IoT Application 150 150
Author(s): Sekeon Kim, Giseok Kim, Kyeongrim Baek, Keonhee Cho, Hyunjun Kim, Yeonho Jung, Dongwook Seo, Sangyeop Baeck, Sungjae Lee, Seong-Ook Jung

Abstract:

The general approach to suppress leakage in static random access memory (SRAM) is to use a low voltage ( $V_{text {L}}$ ), generated by a low-dropout regulator (LDO), as the cell supply voltage (CVDD) of SRAM array in the standby mode. However, the effectiveness of lowering CVDD is constrained by the …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3582974
Publisher: IEEE

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