Method and apparatus for controlling peak amplifier and doherty power amplifier
US8710923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Jan 4, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7236
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A control method and apparatus of a peak amplifier of a Doherty power amplifier are disclosed, wherein, the control apparatus includes a Radio Frequency (RF) switching circuit in a peak amplification branch of the Doherty power amplifier, which is used to control the turn-on and turn-off of the peak amplifier in the peak amplification branch. The method and apparatus avoid a disadvantage that the peak branch in the Doherty power amplifier is turned on ahead of time, thus reducing the power consumption of the peak power amplifier, and enhancing the mass efficiency of the whole power amplifier; and largely reducing the product expense and production expense of the power amplifier compared to the scheme of some manufacturers improving on-time of the peak power amplifier using complex digital circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.