Programmable current mirror

Details Programmable current mirror Programmable current mirror

1984-11-09

1986-08-26

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

323351, G05F 320

Patent

active

046085300

ABSTRACT:
Compensation for a reference current is provided using a current mirror which has programmable controlled legs which vary the ratio of the input reference current and the output reference current. The input reference current is measured without activating the current mirror and the controlled legs are programmed to provide the desired ratio. The parallel connected programmable controlled legs have a binary weighted current capacity.

REFERENCES:
patent: 3743850 (1973-07-01), Davis
patent: 3761787 (1973-09-01), Davis et al.
patent: 3982172 (1976-09-01), van de Plassche
patent: 4210875 (1980-07-01), Beasom
patent: 4241315 (1980-12-01), Patterson, III et al.
patent: 4280091 (1981-07-01), Hiltner
patent: 4306246 (1981-12-01), Davies et al.
patent: 4408190 (1983-10-01), Nagano
H. Remschardt et al., "Tolerance Trimming of Electrical Data of LSI Semiconductor Circuits" IBM Technical Discl. Bulletin, vol. 20, No. 8, Jan. 1978, pp. 3189-3190.

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