Current source circuit with complementary current mirrors

Details Current source circuit with complementary current mirrors Current source circuit with complementary current mirrors

1989-12-11

1991-02-19

Stephan, Steven L.

Electricity: power supply or regulation systems

Self-regulating

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

323315, G05F 320

Patent

active

049947303

ABSTRACT:
A current source circuit capable of generating two currents of opposite polarities. In order to generate the two currents, the circuit comprises a current source stage including a current mirror and feeding a first output current and an inverter stage connected to the source stage and generating a second output current with opposite polarity with respect to the first. The inverter stage comprises a current mirror and a variable current source defining a control electrode. In order to eliminate the differences in the amplitude of the output currents, the inverter stage comprises a memory element connected to the control electrode so as to store an electrode controlling signal. Switch elements are furthermore interposed between the first output and the second output so as to short-circuit them during the trimming step so that the two output currents are equal to one another while the memory element memorizes the control signal. This signal remains stored during the normal operation of the circuit.

REFERENCES:
patent: 4323797 (1982-04-01), Embree et al.
patent: 4325019 (1982-04-01), Tezuka
patent: 4525682 (1985-06-01), Lai et al.
patent: 4544878 (1985-10-01), Beale et al.
patent: 4618816 (1986-10-01), Monticelli
patent: 4706013 (1987-11-01), Kuo
patent: 4716358 (1987-12-01), Fucito
patent: 4717869 (1988-01-01), Koch et al.
patent: 4740743 (1988-04-01), Reisinger et al.
patent: 4853609 (1989-08-01), Numata et al.

Affiliated with

Also associated with

Rating

Current source circuit with complementary current mirrors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Current source circuit with complementary current mirrors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current source circuit with complementary current mirrors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1146097