US 7,956,581 B2
Rechargeable battery packGeneral
US 7,956,581 B2
Rechargeable battery pack
Tech Center:
2800 Semiconductors/Memory, Circuits/Measuring and Testing, Optics/Photocopying, Printing/Measuring and Testing
Examiner:
Edward Tso
Art Unit:
2858 Printing/Measuring and Testing
Inventors:
Siong LiTingTun
Assignee:
Priority:
01/10/08
Filed:
01/10/08
Granted:
06/07/11
Expiration:
03/12/29
Abstract
A battery pack comprising a power cell for providing power to a load or for receiving a charge from a charger, a first protection circuit for protecting from overvoltage and/or overcurrent conditions, and a second protection circuit for protecting from overtemperature conditions. The protection circuits independently control one or more electronic switching devices, through which passes substantially all of the current supplied by the power cell. When overvoltage and/or overcurrent conditions exist, the first protection circuit causes at least one of the switching devices to move to a non-conducting condition. Similarly, when an overtemperature condition exists, the second protection circuit causes at least one of the switching devices to move to a non-conducting condition.
Cooperative Patent Classification (CPC)
H02H02J7/00309H02JH01M10/0525H01MY02E60/10Y02E