Current control circuit and power amplifier circuit
US11489493B2 · kind B2 · utility
0Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2020 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Feb 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/451
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A current control circuit controls a base current of a first transistor included in a bias circuit outputting a bias current to a power amplifier based on a base-collector voltage of the first transistor. The current control circuit includes a first circuit that outputs a signal associated with the base-collector voltage of the first transistor, and a second circuit that, based on the signal, provides electrical continuity between a base of the first transistor and a reference potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.