Cross coupled symmetrical current source unit
US5446409A · kind A · utility
7Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1993 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Nov 29, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/02337
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A current source circuit has first and second mirror circuits in order to pull currents of equal values into or out of first and second terminals. The potentials at the first and second terminals are maintained equal to each other through the use of the current source circuit. By using an emitter-coupled logic circuit with a simple configuration for detecting the difference between currents, it is possible to produce a small hysteresis voltage with high reliability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.