Circuit and method for setting the operation point of a BGR circuit
US6992472B2 · kind B2 · utility
5Cited by
8References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2005 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Jan 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/30
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A circuit for setting the operating point of a BGR circuit is disclosed. In the circuit, a voltage comparator (P5, P6, I3) compares the output voltage of an operational amplifier of the BGR circuit with the voltage dropping across an auxiliary circuit branch (R5, D3). The auxiliary circuit branch (R5, D3) resembles the arrangement of a circuit branch (R3, D1) of the BGR circuit, and a current source (P8) generates as a function of the result of the comparison a setting current that is fed into an input of the operational amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.