Adaptive bias circuit and system thereof
US8026767B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2009 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Aug 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/555
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An adaptive bias circuit which provides a more sensitive adaptive bias current with respect to power level is used for biasing an electronic circuit. The adaptive bias circuit has a first transistor coupled to a power supply, a voltage bias circuit coupled to the first transistor and the power supply biasing the first transistor, and a first power coupling module coupled to the first transistor and the electronic circuit for coupling a portion of input signal power to the first transistor. A second transistor is coupled to the first transistor and the power supply to increase the current gain of the adaptive bias circuit, and a second current coupling module is coupled to the second transistor and the electronic circuit to provide adaptive bias current to the electronic circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.