This article addresses the issue of fuse burnout in the power unit of an overspeed protection module.It measures the start-up inrush current waveforms under different power-on methods.The mechanism of fuse burnout is an-alyzed from aspects such as voltage and current.The article proposes an analysis method for fuse burnout caused by over-current in the overspeed protection module,considering both transient energy and steady-state current.It analyzes the mechanisms of different surface-mount fuses and compares them with the measured inrush current waveforms.This method guides the selection of fuses in circuit design,improving the fault tolerance of the product.
Power supply unitFuse burnedStarting impulse currentTransient energySteady state cur-rentFuse selection
万方数据
维普
