Amplifier circuit
US9509265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2014 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Nov 13, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7239
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier circuit is disclosed comprising: an input terminal configured to receive a radio frequency input signal; an output terminal configured to provide a radio frequency output signal; a first transistor having a first collector, a first emitter, and a first base; a second transistor having a second collector, a second emitter, and a second base; a bypass switch; and a controller. The first base is connected to the input terminal and the second emitter. The first collector is connected to a circuit voltage supply and the output terminal. The first emitter is connected to ground and to the second base. The second collector is connected to a collector voltage supply. The bypass switch is connected between the first base and the output terminal. The controller is configured to operate the amplifier circuit in a normal mode of operation or a bypass mode of operation in accordance with an amplitude level of the radio frequency input signal, wherein the controller is configured to open the bypass switch in the normal mode of operation and close the bypass switch in the bypass mode of operation to selectively bypass the first transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.