Electronic circuit with self-calibrated PTAT current reference and method for actuating the same
US9442509B2 · kind B2 · utility
1Cited by
7References
17Claims
0Family size
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Key dates
| Filing date | Dec 3, 2014 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Mar 31, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/242
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The electronic circuit with a self-calibrated PTAT current reference includes a PTAT current generator dependent on at least one integrated resistor for supplying a PTAT output current. It further includes a reference current generator dependent on at least one switched capacitor resistor, for supplying a reference current. The reference current and the PTAT output current are compared in a comparator so as to digitally adapt the programmable integrated resistor, or to digitally adapt the dimensional ratio of the transistors of a current mirror in the PTAT current generator, to supply the adapted PTAT output current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.