PROTECTIVE DEVICE AND POWER SOURCE SYSTEM
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United States of America Patent
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Issued Date -
Nov 22, 2018
app pub date -
Dec 13, 2016
filing date -
Dec 13, 2016
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Abstract
In a protective device fuses are respectively provided in three current paths from a battery to respective loads. A microcomputer outputs, to a synthesis circuit, pulse signals having pulses in mutually-different positions. The pulse signals correspond to the fuses, respectively. The synthesis circuit synthesizes a pulse signal corresponding to a fuse, among the fuses, that has a voltage on a downstream-side end less than a threshold. The microcomputer identifies a blown fuse on the basis of a synthesized signal synthesized by the synthesis circuit.
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