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General-purpose electronic fuse

General-purpose electronic fuse
A current detector and a threshold switch are not sufficient when in comes to buildina an electronic fuse. Such a circuit would be trigqered each time the threshold value is exceeded, even by brief current surges. Normally, however, an elecrronic fuse should offer protection against excessive power consumption. Consequently, its triggering lould be dependent on the product of the current (squared) and time, just like an ordinary cartridge fuse. This means that the electronic fuse contains a squarer circuit and an integrator in addition to the current sensor and threshold switch. The advantage of the electronic fuse is not only that it is adjustable and totally free from wear and tear, but also its improved reaction behaviour as compared to an ordinary fuse.
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