Operational amplifier using single-stage amplifier with slew-rate enhancement and associated method
US11664774B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2022 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | May 3, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45632
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An operational amplifier includes a single-stage amplifier and a current controller. The single-stage amplifier receives an input signal, and amplifies the input signal to generate an output signal, wherein the single-stage amplifier includes a voltage controlled current source circuit that operates in response to a bias voltage input. The current controller receives the input signal, and generates the bias voltage input according to the input signal. The bias voltage input includes a first bias voltage, a second bias voltage, a third bias voltage, and a fourth bias voltage. None of the first bias voltage, the second bias voltage, the third bias voltage, and the fourth bias voltage is directly set by the input signal of the single-stage amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.