Non-linearity compensation circuit and bandgap reference circuit using the same
US7411380B2 · kind B2 · utility
22Cited by
15References
27Claims
0Family size
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Key dates
| Filing date | Jul 21, 2006 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Mar 19, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/907
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A non-linearity compensation circuit and a bandgap reference circuit using the same for compensating non-linear effects of a reference voltage are provided. In the non-linearity compensation circuit, the reference voltage is transformed into a temperature independent current. A current mirror mirrors the temperature independent current for biasing a bipolar junction transistor (BJT). Further, two resistors are used for estimating a non-linear voltage, so as to compensate the reference voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.