Power supply circuit for producing a reference current with a prescribable temperature dependence
US7616050B2 · kind B2 · utility
15Cited by
12References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2005 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Dec 23, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/465
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A power supply circuit is provided for producing a reference current with a prescribable temperature dependence. The circuit includes two current sinks, which at their respective input take up a first input current (I1) or a second input current (I2), and in which current sinks at their respective outputs are connected to a node having a reference potential, the output of at least one current sink being connected via a resistor to the node having the reference potential. The resistor is formed by least two reference resistors with prescribable temperature coefficients that are preferably different from one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.