Patent · US Expired

Multi-cell battery protection system

US4061955A · kind A · utility

49Cited by
4References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 19, 1976
Grant dateDec 6, 1977
Priority date
Expiry dateMay 19, 1996

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02J7/0029
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A multi-cell battery protection system is provided wherein each cell has its own individual protective circuit. The protective circuits each comprise a solid state comparator unit and a high current switching device such as a relay. The comparator units each continuously monitor the associated cell and when the cell voltage either exceeds a predetermined "high" level or falls below a predetermined "low" level, the relay is actuated whereby a bypass circuit is completed across the cell thereby effectively removing the cell from the series of cells.

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