Base current supply circuit for multiple current sources
US5592076A · kind A · utility
4Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1995 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Jul 3, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/265
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A compensation circuit (26, 27, 28, 29) supplies base currents to a plurality of current sources (22, 25) attached to a regulator (50), thereby reducing the load on the regulator and improving overall circuit performance. The compensation circuit measures a single base current, multiplies it by the number of current sources to be supplied, and then provides the multiplied current to a base bus (40) coupled to the bases of the plurality of current sources. The compensation circuit has a very high output impedance with essentially no variation with supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.