Patent · US Expired

Battery charger for preventing memory effect

US5920180A · kind A · utility

10Cited by
16References
16Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 30, 1997
Grant dateJul 6, 1999
Priority date
Expiry dateJun 30, 2017

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02J7/00
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A battery charger, for preventing deterioration from the memory effect, that includes a switching circuit with first and second reference voltages. The second reference voltage is lower than the first reference voltage. The switching circuit forcibly discharges a battery where the voltage level corresponding to battery capacity is between the first and second reference voltages, and charges the battery after the battery capacity reaches the second reference voltage.

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