Results 171 to 180 of about 238 (209)

Non‐Invasive Multidimensional Capacitive Sensing for In Vivo Traumatic Brain Injury Monitoring

Advanced Materials Technologies, EarlyView.
Single‐electrode, multidimensional capacitive sensors noninvasively assess cerebral autoregulation and compliance for traumatic brain injury monitoring. ABSTRACT Traumatic brain injury (TBI) is a major cause of death and disability, but invasive intracranial pressure (ICP) monitoring is risky, and current non‐invasive methods lack the resolution and ...
Shawn Kim, Yu‐Jen Cheng, Tianyi Li, Nathan White, Xu Wang, Kristyn Ringgold, Lauren Neidig, Younghoon Kwon, Jae‐Hyun Chung   +8 more
wiley   +1 more source

Hydrogel‐Based Functional Materials: Classifications, Properties, and Applications

Advanced Materials Technologies, EarlyView.
Conductive hydrogels have emerged as promising materials for smart wearable devices due to their outstanding flexibility, multifunctionality, and biocompatibility. This review systematically summarizes recent progress in their design strategies, focusing on monomer systems and conductive components, and highlights key multifunctional properties such as
Zeyu Zhang, Zao Cheng, Patrizio Raffa
wiley   +1 more source

Design of Switched Capacitor Integrators using 90nm Technology

CVR Journal of Science & Technology, 2014
openaire   +2 more sources

Advances in Safe, Flexible, and Stretchable Batteries for Wearable Applications

Advanced Materials Technologies, EarlyView.
Unlike previous reviews centered on component‐based deformability, this work highlights safety‐driven design strategies for flexible and stretchable batteries. By integrating material‐level engineering, geometry‐controlled structures, biocompatibility, and self‐protection mechanisms, it establishes a unified framework that connects mechanical ...
Hyewon Kang, Garan Byun, Seunghyeb Ban, Yunuo Huang, Woon‐Hong Yeo   +4 more
wiley   +1 more source

Ultra‐Flexible Dual‐Band Organic Photodetectors for Visible and Near‐Infrared Sensing

Advanced Optical Materials, EarlyView.
An ultra‐flexible dual‐band organic photodetector with a total thickness of 5.6 µm for bio‐sensing is developed. It selectively detects visible and near‐infrared light with high sensitivity by switching the voltage. Peripheral oxygen saturation (SpO2) measurement is demonstrated using the device attached to a finger under a single light source by ...
Sachi Awakura, Hiroaki Jinno, Yusaku Tagawa, Ryota Fukuzawa, Masahito Takakuwa, Takao Someya, Tomoyuki Yokota   +6 more
wiley   +1 more source

Integrated interface circuits for switched capacitor sensors

, 1991
openaire   +1 more source

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Integrated switched-capacitor FDNR filter

IEEE Journal of Solid-State Circuits, 1983
A switched-capacitor filter using a frequency-dependent negative resistance (FDNR) is described. FDNR filters closely simulate passive LC filters, thereby retaining passband stability and design simplicity. The filter has been implemented in LSI and designed to perform the transmit/receive filtering for PCM codecs.
M. Cooperman, C.W. Kapral
openaire   +1 more source

Fully Integrated Switched-Capacitor Power Converters

2023
Since both switches and capacitors shrink with advanced integrated circuit processes, fully integrated switched-capacitor (SC) power converters become a popular solution for on-chip point-of-load power delivery. This chapter covers the topology design, multiphase and multistate operations, loss analyses, and efficiency optimization considerations for a
Jiang, Junmin, Lu, Yan, Ki, Wing Hung, Martins, R.P.   +3 more
openaire   +2 more sources

Offset-compensated switched-capacitor integrators

IEEE International Symposium on Circuits and Systems, 2002
The performance of several switched-capacitor (SC) integrators is compared, and a description representation is introduced. Offset-compensated circuits which reduce the capacitance spread in very large time-constant SC integrators are presented. The theoretical equations are derived for all SC circuits and are then confirmed by simulations. >
W.-H. Ki, G.C. Temes
openaire   +1 more source

Fully Integrated Switched-Capacitor Fundamentals

2020
As discussed in Chap. 1, there is a clear drive towards monolithic power conversion, and SC converters in particular are an excellent candidate for full integration. Before proceeding to more advanced topics, this chapter will go over the fundamental principles behind SC DC–DC converters.
Nicolas Butzen, Michiel Steyaert
openaire   +1 more source