DC-DC power supply with at least two paralleled converters and current share method for same
US6768658B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 4, 2002 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Sep 4, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J1/102
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A DC-DC power supply with at least two paralleled converters and a current share method for the power supply are presented. According to one embodiment, the power supply includes first and second current mode controlled power converters connected in parallel for powering a load. Each of the paralleled power converters may include a voltage error amplifier, and the output terminals of the respective voltage error amplifiers are connected together. The power supply further includes a slow loop current share control circuit that is responsive to a sensed current in each of the power converters and, based on the sensed currents, forces the power converters to equally contribute to the load current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.