Electricity: power supply or regulation systems – Self-regulating – Using a three or more terminal semiconductive device as the...
Patent
1999-09-22
2000-06-13
Berhane, Adolf Deneke
Electricity: power supply or regulation systems
Self-regulating
Using a three or more terminal semiconductive device as the...
G05F 316
Patent
active
060753552
ABSTRACT:
A current mirror circuit is provided with recovery having high output impedance. The current mirror includes a differential stage having a pair of transistors, and a voltage feedback loop which is stabilized and closed on a first one of the transistors of the differential stage. A second one of the transistors of the differential stage is connected, by its base terminal, to the collector terminal of an output transistor and, by its collector terminal, to the supply voltage. Moreover, the circuit includes a positive feedback loop which has the second transistor of the differential stage and the output transistor. A low-impedance circuit branch is connected to the base terminal of the second transistor of the differential stage and to the collector terminal of the output transistor.
REFERENCES:
patent: 4524318 (1985-06-01), Burnham et al.
patent: 4584535 (1986-04-01), Seevinck
patent: 5391981 (1995-02-01), Masson
Cosentino Gaetano
Filoramo Pietro
Palmisano Giuseppe
Berhane Adolf Deneke
Galanthay Theodore E.
Laxton Gary L.
STMicroelectronics S.r.l.
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