Modified current source (MCS) with seamless range switching

Details Modified current source (MCS) with seamless range switching Modified current source (MCS) with seamless range switching

2008-08-28

2010-10-12

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

External or operator controlled

Using an impedance as the final control device

C324S765010

Reexamination Certificate

active

07812589

ABSTRACT:
A current source is provided with two resistor banks, and digital potentiometers are used to control how much each resistor bank affects the resulting output current. Furthermore, when the digital potentiometers are at a particular setting such that a particular resistor bank does not affect the resulting output current (i.e., the resistor bank is “inactive”), the resistance of that resistor bank can be switched without affecting the output current, thus minimizing or eliminating discontinuities in the output current during a current sweep operation. Thus, for example, when a resistor bank meets its threshold and becomes inactive, the resistance of the inactive resistor bank may be switched, and then the digital potentiometer setting may be changed to facilitate smoothly reactivating that resistor bank, with the new resistance.

REFERENCES:
patent: 4728881 (1988-03-01), Evans et al.
patent: 5579236 (1996-11-01), Tamamura et al.
patent: 5717323 (1998-02-01), Tailliet
patent: 6292690 (2001-09-01), Petrucelli et al.
patent: 6738401 (2004-05-01), Bowler et al.
patent: 7098648 (2006-08-01), Krieger et al.
patent: 7411375 (2008-08-01), Konrad et al.
patent: 7508228 (2009-03-01), Walker et al.
International Search Report in Corresponding PCT Application No. PCT/US2009/052133, Mailed Sep. 23, 2009.
Written Opinion in Corresponding PCT Application No. PCT/US2009/052133, Mailed Sep. 23, 2009.

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