Patent ID: 9614382
Date: 2017-04-04
CPC Classifications: H02J,Y02T

Claim:
1. A short-circuit protection device for limiting a battery current of a battery strand having at least one battery cell and for guiding an output current to a consumer network via a first network terminal and a second network terminal connected to the short-circuit protection device, a first power circuit being formed by the battery strand, the first network terminal, the second network terminal, and the consumer network, the short-circuit protection device compring: a first switching element arranged in the first power circuit and configured to interrupt the battery current to limit the output current; at least one current detection means configured to determine a magnitude of the output current; a comparison arrangement configured to compare the magnitude of the output current with a predefined target value; at least one inductor arranged in series with the first switching element; an inductor current regulation arrangement configured to receive a signal from the comparison arrangement and regulate the output current flowing through the at least one inductor by actuating the first switching element; and a first bridge device comprising one of a switch and a diode and configured to, in the event of an interruption of the battery current by the first switching element, (i) bridge at least one battery cell of the battery strand, (ii) close a second power circuit for the output current via the first network terminal, the second network terminal, the consumer network, and the at least one inductor, and (iii) limit the predefined target value to a predefined maximum value of a short-circuit current.