Expanding DC/DC converter into multiphase DC/DC converter
US9077244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2012 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | May 30, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1586
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A DC/DC converter configurable for operating as a multiphase DC/DC. A controller produces a master drive signal for controlling a primary power switch to produce the output DC signal at a desired level. Multiple secondary power stages are coupled between the input and the output nodes for producing an output DC signal. Each of the multiple secondary power stages has at least one secondary power switch responsive to the input DC signal for producing the output DC signal. An expander system configures the DC/DC converter for operation in a multiphase DC/DC conversion mode. The expander system is responsive to the master drive signal for producing multiple slave drive signals respectively supplied to the multiple secondary power stages for controlling secondary power switches. The slave drive signals have phases shifted with respect to the master drive signal and with respect to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.