Band gap reference voltage source
US5570008A · kind A · utility
22Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1994 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Apr 14, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/907
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
For compensating the Early effect a band gap reference voltage source includes current mirror circuits (T.sub.4, Q.sub.3 and T.sub.1, Q.sub.1 as well as T.sub.2, Q.sub.2) to ensure that the currents necessary for achieving the temperature-compensated output voltage are generated. Using the current mirror circuits makes the reference voltage source independent of changes in the supply voltage (U.sub.cc) and enables it in particular to be employed at supply voltages as of low as 3 V.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.