Capacitor charger with a modulated current varying with an input voltage and method thereof
US7619394B2 · kind B2 · utility
5Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2004 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Jul 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a capacitor charger including a transformer having a primary winding connected with an input voltage and a secondary winding for transforming a primary current flowing through the primary winding to a secondary current flowing through the secondary winding, the primary current is adjusted according to a monitoring voltage varying with the input voltage, thereby prolonging the lifetime of the battery that provides the input voltage and improving the power efficiency of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.