Amplifier circuit using voltage-to-current conversion and associated envelope tracking supply modulator using the same
US11848646B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2021 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | Feb 23, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45718
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier circuit includes a voltage-to-current conversion circuit and a current-to-voltage conversion circuit. The voltage-to-current conversion circuit generates a current signal according to an input voltage signal, and includes an operational transconductance amplifier (OTA) used to output the current signal at an output port of the OTA. The current-to-voltage conversion circuit generates an output voltage signal according to the current signal, and includes a linear amplifier (LA), wherein an input port of the LA is coupled to the output port of the OTA, and the output voltage signal is derived from an output signal at an output port of the LA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.