Current producing circuit, current producing method, and...

Details Current producing circuit, current producing method, and... Current producing circuit, current producing method, and...

2011-06-21

2011-06-21

Patel, Dharti H (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

C307S077000

Reexamination Certificate

active

07965476

ABSTRACT:
A current producing circuit includes a first current source that applies a first current, the first current being changed at a first rate with respect to a temperature, a second current source that applies a second current, the second current being changed at a second rate with respect to the temperature, the second rate being different from the first rate, a third current source that applies a third current, the third current being changed at a third rate with respect to the temperature, a first differential output unit that supplies a first differential current based on a difference between the first current and the second current, and a computing unit that adds or subtracts the first differential current to or from the third current.

REFERENCES:
patent: 7183848 (2007-02-01), Salle et al.
patent: 03-200381 (1991-09-01), None
patent: 2007-097056 (2007-04-01), None

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