Apparatus for controlling a plurality of current sources

Details Apparatus for controlling a plurality of current sources Apparatus for controlling a plurality of current sources

1983-12-27

1986-05-27

Caldwell, Sr., John W.

Communications: electrical

Continuously variable indicating

Plural transmitters

34087004, 34087039, G08C 1508

Patent

active

045918554

ABSTRACT:
A microprocessor controller converts one or more sensor signals to a time multiplexed digital signal which is converted to an analog voltage signal by a digital-to-analog converter. A switching circuit, under the control of the microprocessor, selectively applies the analog signal to a plurality of current sources thereby setting the output current from each current source.

REFERENCES:
patent: 4146750 (1979-03-01), Spiesman
patent: 4204249 (1980-05-01), Dye
patent: 4442716 (1984-04-01), Coe
patent: 4466071 (1984-08-01), Russell
patent: 4532601 (1985-07-01), Londerking
patent: 4541065 (1985-09-01), Faulkner
patent: 4549180 (1985-10-01), Masuda

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