Current source circuit
US5966007A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1998 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Jul 13, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/225
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A current source circuit has a current mirror circuit and a correct ion circuit. The current mirror circuit includes first to fourth transistors. The bases of the first and second transistors are commonly connected to each other. A collector of the third transistor is connected to a common base of the first and second transistors. An emitter of the third transistor is connected to an emitter of the fourth transistor. A base of the fourth transistor is connected to the collector of the first transistor. The correction circuit includes fifth to eighth transistors. The base of the fifth and sixth transistors are commonly connected to each other. An emitter of the seventh transistor is connected to the common base of the fifth and sixth transistors. A collector of the seventh transistor is connected to an emitter of the eighth transistor. A base of the eighth transistor is connected to the collector of the second transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.