Energy storage circuit for DC-DC converter
US6538906B1 · kind B1 · utility
55Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2002 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Feb 11, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J9/061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An energy storage circuit for a wide input voltage range DC-DC converter with holdup time requirement. The energy storage circuit comprises (1) an energy storage capacitor, (2) a charging path including a diode connected in series with a current limiting resistor coupled in series with the energy storage capacitor, (3) a discharging path including a parallel-coupled switch and a diode coupled in series with a filtering inductor which is coupled in series with the energy storage capacitor, and (4) a logic control unit coupled to the switch for turning the switch of the discharge path on and off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.