Digitally controlled integrated DC-DC converter with transient suppression
US8441242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2010 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Jun 16, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fully integrated DC-DC converter utilizes digitally controlled dual output stages to achieve fast load transient recovery is presented. The DC-DC converter includes a main converter output stage connected in parallel with an auxiliary output stage. The main output stage is responsible for steady-state operation and is designed to achieve high conversion efficiency using large inductor and power transistors with low on-resistance. The auxiliary stage is responsible for transient suppression and is only active when a load transient occurs. The auxiliary output stage performs well with inductor and power transistors much smaller than those of the main switching stage and thus achieves well balanced power conversion efficiency and dynamic performance with a much smaller area penalty than previously described dual-output-stage converters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.