Since the demand for higher power density suppliers is constantly growing, resonant power converters (RPC) have been receiving more and more attention recently, due to its high efficiency and high switching frequency capability.
The advantage is higher modulation frequency capability than with previously reported methods.
Furthermore, the piezoelectric actuator is selected as the driving element because of its high frequency oscillation operation capability.
Although the envelope solution, by itself, is sufficient and convenient to deal with structural-acoustic coupling, the proposed model presents the twofold advantage of avoiding computational problem connected with high frequency vibrations while keeping the capability of recovering the oscillating response, when required.
From the evaluation results, it is expected that the linear array transducer developed using the proposed design and fabrication methods can provide a potential alternative for high frequency ophthalmic imaging with the desired capability.
For example, changes in the classical excitability parameters (e.g., Rin, threshold) suggested increased excitability; whereas the capability to elicit high frequency firing is decreased.
The performance of H∞ controller is examined by experimental simulations to inspect its closed-loop stiffness, rise time and capability to suppress the high frequency disturbances.
We highlight results from Odin's first year of sub-millimetre and millimetre wave observations of H2O, H218O, NH3, and O2, focussing on a number of new results where Odin's high angular resolution, high frequency resolution, large spectrometer band widths, high sensitivity, or/and frequency tuning capability are crucial.
Aerospace and defense innovators have long recognized the critical competitive advantages GaN represents for high frequency electronics – including significant cost, size, weight and power reduction capabilities – and have spent years refining and continuously pushing GaN technology to new limits.
Discussion on high frequency trading, 13 September 2011.
