Dynamic bias soft start control apparatus and methods
US9018923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2011 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Jul 18, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/901
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods operate to disable a dynamically biased apparatus and a dynamic bias current source providing dynamic bias current to the apparatus at the beginning of a static bias startup period shortly after power-on. The dynamically biased apparatus is then gradually enabled in a static bias mode of operation during the static bias startup period. Following the end of the static bias startup period, operation of the dynamically biased apparatus in a dynamic transconductance mode is gradually enabled during a dynamic bias startup period. Such startup sequence operates to prevent damaging in-rush currents in a system employing the dynamically biased apparatus in a feedback control loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.