System and method for providing an active current assist with analog bypass for a switcher circuit
US9083239B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 5, 2012 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Dec 17, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1566
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system and method are disclosed for providing an active current assist with analog bypass for a switcher circuit. An active current assist circuit is coupled to a buck regulator circuit, which includes a switcher circuit, an inductor circuit and a capacitor circuit. The active current assist circuit includes an active current analog bypass control circuit and a current source. The active current analog bypass control circuit receives and uses current limit information, voltage error information, and drop out information to determine a value of assist current that is appropriate for a current operational state of the buck regulator circuit. The active current analog bypass control circuit causes the current source to provide the appropriate value of assist current to the buck regulator circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.