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.
关键词
电源单元/保险丝烧毁/启动冲击电流/瞬态能量/稳态电流/保险丝选型
Key words
Power supply unit/Fuse burned/Starting impulse current/Transient energy/Steady state cur-rent/Fuse selection
维普
万方数据