Zhang, DandiDing, HongfaHe, ZhouZhou, WentaoZhang, Ziqi2025-02-252025-02-252025-02-13Zhang, D.; Ding, H.; He, Z.; Zhou, W.; Zhang, Z. A Highly Stabilized Current Source Topology with Slope Compensation for a High-Power Microwave Guiding Coil. Electronics 2025, 14, 739.https://hdl.handle.net/10919/124709For the waveguide coil in a High-Power Microwave (HPM) source, a strong repetitive Flat-top Pulsed Magnetic Field (FTPMF) is needed, which requires the power supply system to generate a high load current (3∼5 kA) with high stability (<1000 ppm) and a long pulse-width (15∼20 ms). To achieve this, this article proposes a novel topology which includes a capacitor bank as the main power supply to guarantee a long pulse-width, combined with an active current compensator to regulate the load current precisely. A PI control scheme with slope compensation is used to solve the current fluctuation caused by capacitor switching. The novel topology also features a fast rising and falling time, thus it is suitable for repetitive working applications. The parameters of the topology are calculated by analysis to guarantee the working condition of a 45 GHz HPM source, and the operating principle of this topology is verified through low-power-scale experiments.application/pdfenCreative Commons Attribution 4.0 Internationalhigh-power microwave (HPM) sourceflat-top pulsed magnetic field (FTPMF)current regulationpulsed power techniquesslope compensationArticle - Refereed2025-02-25https://doi.org/10.3390/electronics14040739