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Voltage transient spikes suppression in flyback converter using dissipative voltage snubbers
2008 3rd IEEE Conference on Industrial Electronics and Applications, 2008The Flyback topology results in significant cost and space savings for multiple output power supplies for power levels up to 100 W. Flyback topologies store and transfer energy using a transformer, which due to physical limitations can cause large voltage transient spikes during the switching cycle at the drain of the power switch and at the secondary ...
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Voltage Spikes on the Substrate to Obtain Timing Faults
2013 Euromicro Conference on Digital System Design, 2013Fault attacks are widely deployed against secure devices by hardware evaluation centers. While the least expensive fault injection techniques, like clock or voltage glitches, are well taken into account in secure devices by dedicated hardware counter-measures, more advanced techniques, such as light based attacks, require huge investments.
Tobich, Karim +4 more
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Voltage-controllable magnetic skyrmion dynamics for spiking neuron device applications
Chinese Physics B, 2022Voltage-controlled magnetic skyrmions have attracted special attention because they satisfy the requirements for well-controlled high-efficiency and energy saving for future skyrmion-based neuron device applications. In this work, we propose a compact leaky-integrate-fire (LIF) spiking neuron device by using the voltage-driven skyrmion dynamics in a ...
Ming-Min Zhu +9 more
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Voltage-spike analysis for a free-running parallel inverter
IEEE Transactions on Magnetics, 1974Unwanted and sometimes damaging high-amplitude voltage spikes occur during each half cycle in many transistor saturable-core inverters at the moment when the core saturates and the transistors switch. The analysis shows that spikes are an intrinsic characteristic of certain types of inverters even with negligible leakage inductance and purely resistive
F. Lee, T. Wilson
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Spiking voltages for faster switching of nematic liquid-crystal light modulators
Applied Optics, 2006Electrical address circuits developed for driving fast-switching ferroelectric liquid-crystal spatial light modulators (SLM) can be programmed to increase the speed of much slower responding nematic liquid-crystal SLMs. Using an addressing circuit that can switch as fast as 0.164 ms, voltages are programmed for values of phase that exceed the desired ...
Xiaodong, Xun +2 more
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Spike voltage topography and equivalent dipole localization in complex partial epilepsy
Brain Topography, 1990The EEG of 45 patients with complex partial epilepsy was recorded from standard and supplementary inferior temporal electrode sites for 2 or more days via cable telemetry onto video (VHS) tape (22-25 channels, common reference). Epochs with "temporal spikes" were read into a topographic EEG device where individual spikes were visually identified and ...
J S, Ebersole, P B, Wade
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Mechanism of Rectified Output Voltage Spike in Isolated Converter Under Wide Input Voltage
2018There exists high rectified output voltage spike in isolated transformer’s secondary, especially for the high frequency link auxiliary inverters under wide input voltage. It will lead to increased voltage stress and loss of switching devices, impeding the improvement of system’s reliable operation and conversion efficiency.
Chunhui Miao, Huiqing Du, Fei Xiao
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A dual time—voltage window discriminator for multiunit nerve spike decomposition
Journal of Neuroscience Methods, 1983Abstract Construction and operation of a dual time-voltage window discriminator is described. The device is not only sensitive to spike height but also to spike width. The discriminator is especially suited to decompose multiunit nerve spike sequences.
H R, Lüscher, J, Mathis, H, Schaffner
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Discharge performance of conductor spikes in GIS under AC voltage
2017 IEEE Electrical Insulation Conference (EIC), 2017Gas insulated switchgear (GIS) is widely applied in power systems due to its excellent insulation performance. The reliability of GIS will be influenced by various insulation defects generated during the manufacture, installation, adjustment, operation and maintenance of the apparatus. Some defects, including conductor spikes, free metal particles, etc.
null Zhicheng Wu +7 more
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Low-Voltage Oxide-Based Synaptic Transistors for Spiking Humidity Detection
IEEE Electron Device Letters, 2019In order to obtain higher humidity sensitivity, shorter response/recover time, and lower energy consumption, we investigate the dynamic humidity sensing characteristics of indium–zinc-oxide (IZO)-based synaptic transistors with graphene oxide/chitosan composite electrolyte films as the gate dielectrics.
Sha Nie +4 more
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