RF power amplifier mirror circuit for sensing current
US7551027B2 · kind B2 · utility
2Cited by
17References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2007 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Jun 15, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/474
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus and method is disclosed for providing a mirror circuit for detecting a change in current of a RF power amplifier. The mirror circuit includes a voltage operably coupled with the mirror circuit, a bias circuit operably coupled with the mirror circuit, wherein the bias circuit is capable of applying a bias voltage to the mirror circuit, and an output reference signal. The output reference signal is proportional to the change of current in the RF power amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.