Efficiency improved envelope amplifier using dual switching amplifiers
US8896375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2013 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Apr 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/0227
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Provided is a hybrid envelope amplifier having improved efficiency, and more particularly, to an envelope amplifier using a dual switching amplifier and having improved efficiency in which power consumption is reduced by controlling a switching current of a switching region according to a magnitude of an envelope input signal, thereby improving efficiency compared to a conventional hybrid envelope amplifier. The envelope amplifier using a dual switching amplifier and having improved efficiency comprises a linear amplifier and a switching amplifier, wherein the switching amplifier includes two or more switching stages that are selectively operated according to a magnitude of an input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.