Lippmann Martin, Hitzemann Moritz, Winkelholz Jonas, Bailey David, Zimmermann Stefan
Leibniz University Hannover, Institute of Electrical Engineering and Measurement Technology, Department of Sensors and Measurement Technology, Appelstr. 9A, 30167 Hannover, Germany.
HardwareX. 2024 Aug 23;19:e00574. doi: 10.1016/j.ohx.2024.e00574. eCollection 2024 Sep.
Ion mobility spectrometry is an emerging technology in trace gas analysis that has moved from typical safety and security applications to many other fields ranging from environmental and food quality monitoring to medicine and life sciences. Nevertheless, further dissemination, including the development of new instruments and the expansion into new fields of application requires the availability of the fundamental components of ion mobility spectrometers. For example, the electronics is essential for the analytical performance, but is only provided by specialized manufacturers due to specific requirements. In this paper, we present a modular, isolated high-voltage switch that can be operated at an isolated potential. The modular design enables tailoring its configuration to the required application. Each module can switch a voltage of up to 3 kV, and can be operated with an offset voltage of up to 7 kV. The switch has rise and fall times of less than 25 ns, making it suitable for a wide range of applications, e.g., in ion mobility spectrometry. Finally, the presented modular, isolated high-voltage switch was used in a push-pull configuration to generate the injection pulse of the ion gate. The new modular, isolated high-voltage switch shows similar performance compared to a commercially available high-voltage switch.
离子迁移谱是痕量气体分析中的一项新兴技术，已从典型的安全保障应用拓展到许多其他领域，涵盖环境与食品质量监测、医学以及生命科学等。然而，要实现进一步推广，包括开发新仪器以及拓展到新的应用领域，就需要有离子迁移谱仪的基础组件。例如，电子器件对分析性能至关重要，但由于特定要求，仅由专业制造商提供。在本文中，我们展示了一种可在隔离电位下运行的模块化、隔离式高压开关。模块化设计使其能够根据所需应用定制配置。每个模块可切换高达3 kV的电压，且可在高达7 kV的偏置电压下运行。该开关的上升和下降时间小于25 ns，适用于广泛的应用，例如在离子迁移谱中。最后，所展示的模块化、隔离式高压开关以推挽配置用于产生离子门的注入脉冲。与市售高压开关相比，新型模块化、隔离式高压开关表现出相似的性能。
