Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 27 for “"capacitive coupling"”.
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Simultaneous Power and Signal Transfer via Capacitive Coupling
Capacitive power transfer (CPT) technology has recently emerged as an alternative to Inductive Power Transfer (IPT) for driving electronic devices with great convenience. CPT has advantages in terms of flexible and lightweight coupling structures, less EMI (Electromagnetic Interference), and the …
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Analysis and modeling of capacitive coupling along metal interconnect lines
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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A Hybrid Switched-Capacitor Converter for Capacitive Wireless Power Transfer in Biomedical Applications
… inductive wireless power transfer (I-WPT), but capacitive wireless power transfer (C-WPT) has the potential to provide safety and size improvements over I-WPT. Current C-WPT research is focused on resonant capacitive coupling methods. Such works have reported power transfer efficiency of less …
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Single-switch bridgeless PFC sepic with proposed series-line-diodes-clamped configuration for data communication applications
… drawbacks exist such as circulating current, capacitive coupling loop, more current stress at input capacitors and line-diodes, high total harmonic distortion of current (THDi), low power factor, dead zones, and high output voltage ripple. Therefore, a SSBPFC SEPIC structure with SLDC …
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Non-contact voltage monitoring of three-phase power cables
… explores several methods of using parasitic capacitive coupling to monitor AC voltages in three-phase power cables. Using an existing sensor architecture, three-phase line voltages are accurately reconstructed through intrusive calibration techniques. Experimental results are presented for …
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Analysis of variation in on-chip waveguide distribution schemes and optical receiver circuits
… variation, load capacitance variation, parasitic capacitive coupling, and power supply noise. Simulation results show that, for both the passive waveguide network and the optical receiver circuit, variation can result in clock skew and jitter, which limit the frequencies at which the distribution …
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Development of pulsed power sources using self-sustaining nonlinear transmission lines and high-voltage solid-state switches
… for the researchers working in this field. The capacitive coupling method is one of the mechanisms that ensure voltage balancing among the series-connected switches while occupying a smaller area compared to other competing methods. However, literature pertaining to capacitive coupling-based …
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Impedance Characterization and Modeling of Subcellular to Micro-Sized Au, Pt, TiN, and ITO Electrodes With PEDOT:PSS-Coating For Bioelectrical Interfaces
… greater faradaic charge transfer capability and capacitive coupling compared to their uncoated counterparts. At D = 10-200 µm, PEDOT:PSS coating reduces the electrode interfacial impedance at 1 kHz by up to ×101.6 while at D > 200 µm, the effect is lessened due to dominance of solution, or bulk …
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Infrared Energy Conversion in Plasmonic Fields at Two-Dimensional Semiconductors
… to a conversion efficiency of up to 0.023% W-1. Capacitive coupling between nanoshells arranged into dimers further augmented SHG activity from MoS2. New theoretical and experimental insights into energy conversion interactions between coupled plasmonic and excitonic materials spanning the linear …
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Design and development of a fluid actuated neural probe for chronic sensing
… The device consisted of a floating design using capacitive coupling as the electrical interconnect methodology. The devices were tested in-vitro for basic functionality and characterized using impedance spectroscopy. The test device showed an average impedance of 6.62 kΩ ∠-41° ± 1.04 kΩ ∠-2° at …
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Graphene Field-Effect Transistors on p-doped Semiconductors for Photodetection
… carriers in the graphene channel through the capacitive coupling effect. Due to a long lifetime of trapped carriers, the induced carriers in the graphene channel circulate multiple times under a given bias between the source and drain contacts, generating a photocurrent with high gain. Here, …
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Modeling superconductors using surface impedance techniques
… and the variation of Q with temperature and capacitive coupling. The tool developed here can therefore be used to predict the electromagnetic behavior of a superconducting device as function of the material parameters, operating temperature and frequency. With measurements of the device's Q …
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Pentacene Based Organic Electronic Devices
… fabricated and tested. The inverter uses capacitive coupling and bootstrapping effects, and exhibits superior performance to the normal diode-connected load inverter. The circuit has a 30 us rise time and 450 us fall time, at an operating frequency of 1 kHz and 30 V drive voltage. …
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Technologies for Scaling Silicon-MOS Quantum Processors
… Arbitrary Waveform Generator (AWG), without AC-coupling the AWG line. These combiners are then optimised for low-power and integrated into the cryostat at the 4 K stage to reduce electrical noise. Secondly, we investigate devices based on Fully-Depleted Silicon-On-Insulator (FDSOI) technology …
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The degradation of all-dielectric self supporting cables installed in high potential electro-magnetic fields.: A theoretical and practical evaluation of optical fibre cables strung independently on overhead power transmission lines
… to span related polynomial functions, relating capacitive coupling to the space potential, and the superposition of assumed functions.<br/><br/>The work is supported by results presented of extensive practical testing and simulations carried out by the author. These include analyses of the …
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Electromagnetic tracking and steering for catheter navigation
… Error due to induced eddy currents and capacitive coupling is shown to severely affect EM tracking accuracy at higher frequencies.
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Coping With Delays And Hazards In Buses And Random Logic In Deep Sub-Micron
… to operate under a potentially wide range of capacitive coupling. In order to develop such a methodology, multiple reference or threshold voltages in the receiving logic of the lines are considered instead of typically one. The proposed technique utilizes the additional reference voltages to …
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Integration of Power Electronics Building Block Using Polyimide Substrates
… material parameters of polyimides, such as high capacitive coupling and relatively low thermal conductivity, make it difficult to apply conventional design rules developed for ceramic and epoxy-based substrates. To address this gap, this work completes a comprehensive electro-thermal-mechanical …
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Marker-Free Isolation and Enrichment of Rare Cell Types Including Tumor Initiating Cells through Contactless Dielectrophoresis
… field to the electrode reservoirs causes their capacitive coupling to the main channel and an electric field is induced across the sample fluid. Similar to traditional DEP, cDEP exploits the varying geometry of the electrodes to create spatial non-uniformities in the electric field. However, by …
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Model mismatch paradigm for probe based nanoscale imaging.
… force, tip-sample interaction force and capacitive coupling. Experimental strategy is presented to measure the thermal sensing transfer function from DC-100kHz. A quantitative match between experimental and simulated data is obtained for the large range nonlinearities and small signal …
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