Multiphase buck converter and multiphase buck conversion method
US9431905B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2013 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Aug 16, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multiphase buck converter (10) is disclosed, comprising: —a first buck converter branch (SD1, L1) comprising a first core section (COR1), a first power section (PWR1) having a first output node (LX1), a first coil (11) having a first end connected to the first output node (LX1), the first power section (PWR1) being adapted to be controlled by the first core section (COR1) for providing to the coil (L1) a coil current (I1), the first core section (COR1) and the first power section (PWR1) being integrated in a chip (IC); —a second buck converter branch (SD2, L2) comprising a second core section (COR2), a second power section (PWR2) having a second output node (LX2), a second coil (L2) having a first end connected to the second output node (LX2), the second power section (PWR2) being adapted to be controlled by the second core section (COR2) for providing to the second coil (L2) a second coil current (I2), the second core section (COR2) and the second power section (PWR2) being integrated in said chip (IC); —a feedback loop adapted to balance said coil currents (I1,I2). The feedback loop comprises a control block (C_B) that, in order to balance said coil currents, is adapted to comp…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.