System, circuit, and method for auto-zeroing a bandgap amplifier
US7161341B1 · kind B1 · utility
1Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 25, 2004 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Mar 6, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/158
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit includes a bandgap core coupled to an input voltage and capable of producing an output voltage. The circuit also includes an amplifier coupled to the bandgap core. In addition, the circuit includes a switch coupling the bandgap core to an output terminal. The switch is capable of being closed to provide the output voltage to the output terminal. The switch is also capable of being opened during auto-zeroing of the amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.