Multi-phase buck converter with programmable phase selection
US6826028B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 20, 2004 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Jan 20, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1584
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A buck converter is provided for providing an output voltage to a load, the output voltage being produced from an input voltage in accordance with a desired voltage. The buck converter includes an output capacitor, the output voltage being provided by the output capacitor; a plurality of output switch arrangements having respective output inductors coupled to the output capacitor, the switch arrangements being controllable to provide respective phase output currents to the output capacitor through the respective output inductors; a plurality of phase output arrangements respectively coupled to the output switch arrangements, the phase output arrangements being controllable to set the respective phase output currents supplied by the output switch arrangements, each of the phase output arrangements being operable to shutdown the respective output switch arrangement if a signal representing an output current of the buck converter falls below a respective programmable threshold signal; and a phase control arrangement configured to control the phase output arrangements to set the respective phase output currents supplied by the output switch arrangements so that the output voltage appro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.