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Baseline holder (BLH) circuits are used widely to stabilize the analog output of application-specific integrated circuits (ASICs) for high-count-rate applications. The careful design of BLH circuits is vital to the overall stability of the analog-signal-processing chain in ASICs. Recently, we observed self-triggered fluctuations in an ASIC in which the shaping circuits have a BLH circuit in the feedback...
In this paper, the Copper wirebonding technology is investigated. From a numerical point of view, the wirebonding process is modelled. Experiments on specially designed bondpads are performed in order to verify the models. As such, this leads to a thorough understanding of the wirebonding process, especially the forces that take a role during this process.
For DFIG (doubly fed induction generator)-based wind turbines, crowbar is a commonly used protection method against surge current caused by sudden drop of the grid voltage during the period of LVRT (low voltage ride-through). Based on detailed analysis of the transient flux characteristics of DFIG with the crowbar fired, a simplified model is proposed to analyze and approximate the short circuit current...
The performance of spot poled PVDF membrane hydrophones was examined. It was found that the sensitivity of the hydrophone is markedly dependent on the spatial polarization distribution. In addition, the experimental data show there can be a significant difference between the voltage sensitivities measured in the same hydrophone probe depending on which electrode is actually facing the acoustic source...
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