Active droop current sharing
US8237423B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2009 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Aug 22, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Point-of-load (POL) regulators may be configured as multiphase POL DC-to-DC (direct current to direct current) converters, operating in a multiphase configuration in order to boost the total current available to a system. Current balancing may be performed by utilizing an active low bandwidth current sharing algorithm that uses matched artificial line resistance (droop resistance) while maintaining multi-loop stability during both steady-state and dynamic transient states. The current sharing algorithm may be facilitated through digital communication between the devices, where the digital bus may be a single wire bus, a parallel bus or a clock-and-data bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.