Power amplifier module
US7102445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2005 |
| Grant date | Sep 5, 2006 |
| Priority date | — |
| Expiry date | Apr 14, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/366
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier 2c amplifies a transmit signal and outputs the amplified transmit signal to an antenna 10. A drive current for driving the amplifier 2c is inputted to a drive current input terminal 7. A current divider circuit 41 is provided between the drive current input terminal 7 and the amplifier 2c, and divides the drive current among a plurality of paths. The current divider circuit 41 includes a plurality of switching elements provided in the paths, respectively, and switched between a conduction state and a blocking state; and a resistance element 13 provided in at least one of the plurality of paths. A detection section 5 detects an electrical parameter in the resistance element. A control section 6 switches the plurality of switching elements between a conduction state and a blocking state, based on the electrical parameter detected by the detection section 5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.