High linearity voltage to current conversion

Details High linearity voltage to current conversion High linearity voltage to current conversion

2011-03-29

2011-03-29

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Converting input voltage to output current or vice versa

Reexamination Certificate

active

07915928

ABSTRACT:
A system and method for performing voltage to current conversion, the system comprising of a first set of devices that senses the input voltage signal through its input terminal and replicates said input voltage across a second set of devices which then converts said replicated input voltage signal to an output current signal; a third set of devices that transfers the output current signal to output terminals; a differential feedback loop comprising an amplifier positioned between a first one of the first set of devices and a first one of the third set of devices; and a common mode feedback loop that regulates the output average voltage to a reference voltage.

REFERENCES:
patent: 6639457 (2003-10-01), Lou
patent: 2007/0164799 (2007-07-01), Weller et al.
patent: 2008/0112712 (2008-05-01), Inoue

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