Circuit and method of operating a low-noise, on-demand regulator in switched or linear mode
US6452368B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2000 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Dec 11, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dual mode voltage converter (18) is provided which is capable of performing linear or switched modes of operation based on an external mode select signal presented to terminal (MODE). Pulse width modulation techniques are used to regulate voltage delivered to output terminal (Vout) when a mode control signal is present at terminal (MODE) and linear conversion techniques are used in the absence of the mode control signal. Stability of voltage converter (18) is enhanced during linear conversion mode by shorting switch (60) and BW rolloff circuit (44). An alternate embodiment of dual mode voltage converter (18) provides operation based on an internal mode select signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.