Patent · US Expired

Battery pack

US6232749A · kind A · utility

11Cited by
3References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 10, 1999
Grant dateMay 15, 2001
Priority date
Expiry dateDec 10, 2019

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E10/50
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A battery pack is described. The battery pack includes a DC to DC converter and a group of at least two primary cells. The DC-DC converter is operatively coupled to the group of primary cells. The group of primary cells have an initial voltage that is higher than a rated voltage for the battery pack. The DC-DC converter converts the voltage to a regulated nominal voltage that is lower that the rated voltage of the group of primary cells. By regulating the battery voltage down to a constant voltage, the cells can discharge down to a minimum voltage level per cell enabling additional energy transfer from the group of cells.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.