Multi-primary and distributed secondary transformer for power amplifier systems
US7940152B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | May 21, 2010 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | May 21, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/543
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A multi-primary and distributed transformer is provided for one or more sets of parallel-connected or series-connected power amplifiers. The transformer may include a plurality of primary windings, including a first primary winding, a second primary winding, a third primary winding, and a fourth primary winding, where each of the plurality of primary windings is not directly connected to any other of the plurality of primary windings, where each primary winding includes a respective positive port and a negative port for receiving respective differential signals, where each primary winding include a respective first number of turns; and a single secondary winding having a plurality of segments, including a first segment and a second segment, where each segment includes a second number of turns, the second number of turns greater than or equal to the respective first number of turns, where the single secondary winding includes at least one output port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.