Design of a Multi-Mode Asymmetric Waveform Generator for FAIMS

Xiao Wen Xu; Ya Jie Guo

doi:10.4028/www.scientific.net/AMR.658.631

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 658Design of a Multi-Mode Asymmetric Waveform...

Design of a Multi-Mode Asymmetric Waveform Generator for FAIMS

Abstract:

The performance of a high-field asymmetric waveform ion mobility spectrometry (FAIMS) detector is directly related to the quality of the asymmetric waveform generator. In this paper, we propose a design scheme of a multi-mode asymmetric waveform generator based on the half-bridge architecture, using a direct digital synthesizer (DDS) method to produce a frequency adjustable square wave pulse and half-sine pulse signal. An isolation circuit was combined with a drive circuit through a TLP250 which is a MOSFET driver chip with photoelectric isolation. The frequency of the proposed waveform generator can be easily controlled.

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Periodical:

Advanced Materials Research (Volume 658)

Pages:

631-634

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.658.631

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Online since:

January 2013

Authors:

Xiao Wen Xu, Ya Jie Guo

Keywords:

DDS, FAIMS, Half-Bridge, High Voltage (HV), High-Frequency

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