High power battery powered RF amplifier topology
US10159524B2 · kind B2 · utility
186Cited by
600References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2014 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Oct 24, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/541
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The design of high-power RF amplifiers, specifically the design of the output transformer, is complicated by the relatively low voltage provided by battery packs that are practical for handheld devices meant for possibly delicate uses. Provided is an RF amplifier with one or more taps on the primary coil, wherein each tap is controlled by a half bridge driver. The output transformer primary winding may be driven between any two half bridge drivers, with the number of turns between the half bridge drivers and the fixed output winding determining the overall turns ration for the transformer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.