Battery pack having a processor controlled battery operating system

US5646508A · kind A · utility

Assignee

• Duracell Inc. · US

Inventors

• Duong van Phuoc · Unterschleißheim, DE
• Rudi Wieczorek · Munich, DE
• Elmar Zeising
• Louis W. Hruska · Geneva, US
• Alwyn H. Taylor · Wellesley, US
• Daniel D. Friel, Sr. · Wilmington, US
• Matthew P. Hull · Jamestown, US

Key dates

• Filing date: Jun 7, 1995
• Grant date: Jul 8, 1997
• Expiry date: Jun 7, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S320/13
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A rechargeable battery pack and a method of operating a rechargeable battery system. The battery pack includes a rechargeable battery, a processor for monitoring operation and performance of the battery, and a memory area for storing data values used by the processor. The memory area is normally powered by the battery, and a capacitor is provided to supply back-up power to the memory area in case of an interruption in the supply of electrical power to the memory area from the battery. The battery pack further includes a delatching circuit for electronically decoupling the memory area and the back-up capacitor from the battery under predetermined conditions.