熔断器的安秒特性主要由熔丝、外弹簧作用力与整体安装位置决定。
The ampere-second property of the fuse is mainly determined by fuse wire, outer spring function force and the whole install location.
在单片机控制下，脉动送丝波形与外特性同步调控。在停止送丝阶段，单片机令电源输出电压为峰值，焊丝在此电压下返烧并形成熔滴。
The output waveform of the oscillating wire feed system and the external characteristic are controlled and adjusted by a single-chip microcomputer (SCM) synchronously.
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