Rail-to-rail input linear voltage to current converter

Details Rail-to-rail input linear voltage to current converter Rail-to-rail input linear voltage to current converter

2006-04-18

2006-04-18

Zweizig, Jeffrey (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Converting input voltage to output current or vice versa

C327S108000

Reexamination Certificate

active

07030662

ABSTRACT:
A voltage-to-current converter circuit is disclosed. In one embodiment, the present invention includes a first metal oxide semiconductor field effect transistor (MOSFET) stage operable in a low to medium power range. The present invention also includes a second MOSFET stage operable in a medium to high power range. An additive circuit is utilized to add the contributions of both the first MOSFET stage and the second MOSFET stage. A subtractive circuit is further used to subtract either the first MOSFET stage or the second MOSFET stage when both the first MOSFET stage and the second MOSFET stage are operating in the medium power range and outputting current in a voltage-to-current converting circuit.

REFERENCES:
patent: 5519309 (1996-05-01), Smith
patent: 5543745 (1996-08-01), Notani
patent: 6265929 (2001-07-01), Hauser

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