Operational amplifier circuit having adjustable bias current
US7286011B2 · kind B2 · utility
15Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2005 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Dec 30, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7203
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An operational amplifier circuit includes an operational amplifier, a bias current provider, and a control circuitry. The operational amplifier drives a load according to an input signal. The bias current provider is coupled to the operational amplifier and provides a bias current to the operational amplifier. The control circuitry is coupled to the bias current provider and controls the bias current provider to adjust the bias current according to an operating status of the operational amplifier circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.