Battery voltage equalizer circuit and method for using the same
US8476869B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2010 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Aug 10, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0016
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery voltage equalizer circuit for equalizing battery voltages among a plurality of battery cells in a serial connection is disclosed. The battery voltage equalizer circuit includes a battery voltage equalizer unit having a plurality of equalizer parts, wherein each equalizer part, coupled to a positive terminal and a negative terminal of a corresponding battery cell, is conducted with an equalization current upon a receipt of an equalization signal, and a battery voltage detector unit, coupled to the positive and negative terminals of the plurality of battery cells, generates the equalization signal so as to conduct the battery voltage equalizer unit as long as a voltage of any one of the battery cells reaches an equalization voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.