Efficient, dual-source, wide-input range, isolated DC-DC converter with effective current limit
US6424545B1 · kind B1 · utility
6Cited by
4References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2001 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Mar 6, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33569
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is a switching power supply having efficient light load regulation at high input voltage. The power supply comprises a pulse-width modulator integrated circuit along with two separate voltage buses. A transformer is connected to the first voltage bus via a first primary winding and is connected to the second voltage bus via a second primary winding both primary windings have a predetermined number of turns proportional to voltages supplied by the two voltage buses. The power supply further comprises a pair of switches connected to the two primary windings and driven by the integrated circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.