Patent · US Expired

Solid state battery charger

US6218812A · kind A · utility

11Cited by
4References
29Claims
0Family size

Inventor

Key dates

Filing dateMay 15, 2000
Grant dateApr 17, 2001
Priority date
Expiry dateMay 15, 2020

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/10
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A method for charging batteries using a solid state battery charger is disclosed which includes the steps of supplying a constant current to the batteries being charged until the battery voltage reaches a first threshold voltage value, supplying a constant voltage to the batteries being charged until current being drawn by the batteries reaches a threshold current value and supplying a constant current to the batteries being charged until a voltage rise per unit time threshold is met.

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