Current mirrors
US8659348B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2012 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Jul 26, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49117
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A current mirror comprises first and second sets of transistors. each of the first and second sets is a matched set comprising a first transistor and a second transistor. For each set, the base of the first transistor is directly coupled to the base of the second transistor. For one of the first and second transistors of each set the base is directly coupled to the collector. The collectors of the first and second transistors of the first set are coupled, respectively, to the emitters of the first and second transistors of the second set in series. A current output of the current mirror is coupled between the collector of the second transistor of the first set and the emitter of the second transistor of the second set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.