Voltage source measurement unit with minimized common mode...

Details Voltage source measurement unit with minimized common mode... Voltage source measurement unit with minimized common mode...

2007-11-20

2008-09-30

Hollington, Jermele M. (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With amplifier or space discharge device

Reexamination Certificate

active

07429856

ABSTRACT:
A particular configuration of voltage source measurement (VSM) circuitry minimizes common mode errors in measurement of current through a device under test (DUT), even across a wide range of output voltages. The current IDUTis not affected by common-mode errors, since the current measurement is based on the output voltage of an operational amplifier or a differential amplifier, and the circuit configuration is such that the current measurement is made while the operation amplifier or differential amplifier has very low common-mode input voltage.

REFERENCES:
patent: 5608329 (1997-03-01), Imamura
patent: 6160404 (2000-12-01), Schenk
patent: 6763697 (2004-07-01), Bolz
patent: 7098648 (2006-08-01), Krieger et al.
patent: 7154291 (2006-12-01), Turner

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