Programmable current source and methods of use

Details Programmable current source and methods of use Programmable current source and methods of use

2006-03-14

2006-03-14

Lee, Wilson (Department: 2821)

Electric lamp and discharge devices: systems

Regulation of the control current and/or potential applied...

C315S291000, C315S307000

Reexamination Certificate

active

07012378

ABSTRACT:
A programmable multiple current source includes a plurality of current source circuits each having current level data storage circuitry. A current level data input terminal and a control input terminal are connected to each current source circuit to supply current level data to the storage circuitry. Peak detector and storage circuitry is coupled to each of the output terminals of the current source circuits. Each associated current source circuit includes a master digital-to-analog converter coupled to the current level data storage circuitry, a driver circuit coupled to the digital-to-analog converter and to the associated current source circuit, comparator and storage circuitry having a first input coupled to the peak detector and storage circuitry and a second input coupled to the driver circuit, and current level adjustment circuitry coupled to the comparator and storage circuitry and the driver circuit.

REFERENCES:
patent: 4319298 (1982-03-01), Davis et al.
patent: 6018219 (2000-01-01), Komarek et al.
patent: 2003/0023884 (2003-01-01), See et al.

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