Dynamic current limit for operational amplifier
US11929717B2 · kind B2 · utility
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3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2022 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Jan 24, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/441
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An output stage of an operational amplifier includes a low voltage (LV) metal oxide semiconductor (MOS) device and a dynamic current limit circuit. An output current of the operational amplifier flows through the LV MOS device. The dynamic current limit circuit is configured to sense a drain voltage of the LV MOS device and increase a clamping voltage for the LV MOS device when the drain voltage of the LV MOS device is less than a threshold voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.