Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor
Patent
1996-09-09
1998-05-19
Gaffin, Jeffrey A.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific current responsive fault sensor
361126, H02H 300
Patent
active
057543844
ABSTRACT:
An overcurrent protection circuit for protecting a boost-type non-isolated battery discharge controller from a fault current. The battery discharge controller includes multiple parallel-coupled power stages each having an input fuse and an output fuse having predetermined current ratings. The overcurrent protection circuit includes a resistor serially connected to an input of each of the output fuses of each of the power stages for limiting the fault current through each of the power stages to a predetermined level below the predetermined current ratings of the input and output fuses. The overcurrent protection circuit also includes a current bypass path for providing a current path around the power stages when the fault current exceeds the predetermined current ratings of the input and output fuses.
REFERENCES:
patent: 4847719 (1989-07-01), Cook et al.
patent: 5122728 (1992-06-01), Ashley
patent: 5504418 (1996-04-01), Ashley
patent: 5631794 (1997-05-01), Yang
Gaffin Jeffrey A.
Gudmestad Terje
Hughes Electronics Corporation
Leja Ronald W.
Sales Michael W.
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