Analog bias control of RF amplifiers
US11916518B2 · kind B2 · utility
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5References
20Claims
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Key dates
| Filing date | Apr 20, 2022 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Apr 20, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/481
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Examples provide methods and apparatus for controlling a DC bias current in an RF amplifier. In one example where the RF amplifier is implemented on an amplifier die, a reference voltage is produced across a reference resistor implemented on the amplifier die, the DC bias current is measured, and a current controller, which is implemented on a controller die that is separate from the amplifier die, operates a feedback loop using the reference voltage to control a level of the DC bias current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.