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This paper describes implementation design and analysis of piezoelectric transformer with pulse dropping technique to produce high voltage. The main contribution is the implementation of pulse dropping mode in inverter switching mechanism to decrease heat of piezoelectric transformer during the high voltage generation. Piezoelectric transformer fed by inverter in this work is dedicated to generate...
This paper deals with the study of the operating frequency variation in piezoelectric plasma generator. The analysis relies on experimental investigations of transformers driven with a digital phase locked loop. The frequency shift attests of simultaneous effects of plasma load and the rise of temperature. Several tests are shown to highlight and distinguish these effects.
A new type of compact excimer lamp has been developed using a piezoelectric transformer (PT) which employs the excitation of dielectric barrier discharge (DBD) in a He-Xe (10.8%) mixture. To investigate the vacuum ultraviolet emission characteristics, a spectroscopic measurement is performed for the He-Xe DBD generated by the PT. The emission peak is observed at 172 nm in a high gas-pressure region,...
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