Patent ID: 11881707
Assignee: A123 SYSTEMS LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 0:
1. A vehicle battery system, comprising:
a battery management system (BMS) comprising a cutoff circuit electrically coupled to a reverse bias protection circuit, and a driver integrated circuit, the driver integrated circuit electrically coupled to the reverse bias protection circuit via three pins; and
a battery pack having a plurality of stacked battery cells, a positive supply line of the battery pack being electrically coupled to the cutoff circuit, wherein the reverse bias protection circuit comprises each of an input electrically coupled to a control input of the cutoff circuit, an output electrically coupled to an output of the cutoff circuit, and a control input electrically coupled to the output of the cutoff circuit;
wherein the reverse bias protection circuit is not coupled to an input of the cutoff circuit.