Apparatus and method for enabled switch detection
US8008970B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2010 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Jul 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7215
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatuses and methods for enabled switch detection are disclosed. In one embodiment, an apparatus includes a complimentary metal oxide semiconductor (CMOS) switch having a gate, a drain, a source, and a well. The source and drain are formed in the well, and the gate is formed adjacent the well between the source and drain. The source is configured to receive a radio frequency signal from a first power amplifier. The apparatus further includes a switch enable detect block configured to compare a signal indicative of the gate voltage of the first switch to a first reference signal and to generate an output comparison signal based at least partly on the comparison. The apparatus further includes a power amplifier bias control block configured to enable the first power amplifier based at least partly on the output comparison signal from the switch sense block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.