Battery and charging system using switchable coding devices
US5939856A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 1997 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | May 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00047
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery and charging system including a charger (200) that provides a current and a battery (107) having at least one cell (108) that can be charged by the current provided by the charger (200). The battery (107) includes a memory (110) that stores battery information and a coding resistor (111) indicative of battery type. A battery switching circuit (113, 114) coupled to the memory (110) and the coding resistor (111) switches the memory (110) into contact with the charger (200) when the charger (200) is capable of reading the memory (110). Otherwise, the battery switching circuit (113, 114) switches the coding resistor (111) into contact with the charger (200).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.