Voltage regulator with quasi floating gate pass element
US8044646B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2009 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Jun 5, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/56
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Various apparatuses, methods and systems for a voltage regulator are disclosed herein. For example, some embodiments provide an apparatus for regulating a voltage including an N-channel transistor that is connected between an input and an output, an error amplifier that is connected to the output, a capacitor that is connected between the error amplifier and a gate of the N-channel transistor, and a comparator that is connected to a node between the error amplifier and the capacitor. The apparatus also includes a charge pump that is switchably connected to the gate of the N-channel transistor. The apparatus is adapted to connect the charge pump to the gate of the N-channel transistor when a voltage at the node between the error amplifier and the capacitor rises above a threshold voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.