Supercapacitor balancing method and system
US6777917B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2002 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Jun 17, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method of and a system for charging at least one supercapacitor that is particularly suitable for balancing supercapacitors. The method includes a step (22) of bypassing the current flowing in the supercapacitor so that, when the voltage (V) at the terminals of said supercapacitor reaches a threshold voltage (VS), the bypass current (IBP) assumes a maximum value, which method is characterized in that it includes a step (21) of monitoring of the charging current (IC) of said supercapacitor as a function of the voltage (V) at the terminals of said supercapacitor by a voltage detector logic function (F0) able to change from an activated state to a deactivated state when the voltage (V) at the terminals of said supercapacitor exceeds a first predefined voltage (VOH) greater than the threshold voltage (VS) and then to return to the activated state when said voltage (V) at the terminals of said supercapacitor falls below a second predefined voltage (VOB) less than or equal to said first predefined voltage (VOH).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.