Single-inductor multiple-output DC-DC buck converter
US11824443B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2019 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | May 26, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/155
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This disclosure discloses a single-inductor multiple-output DC-DC buck converter, which includes a power conversion unit and i charge controllers, as well as a phase-locked loop, a logic unit, a driving unit, and an input trunk duty ratio generation unit. The charge controllers are connected to the driving unit through the logic unit. The logic unit is further connected to the phase-locked loop and the phase-locked loop is connected to the driving unit through the input trunk duty ratio generation unit. The driving unit is connected to the power conversion unit. The disclosure applies charge control to every output branch path, and adopts a phase-locked loop as the cycle control, which effectively suppresses the cross modulation effect of every branch path, and does not require the last branch path to have a sufficiently heavy load, which broadens the load range, while taking into account other performance requirements concurrently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.