Electrical transmission or interconnection systems – Plural load circuit systems – Control of current or power
Reexamination Certificate
2008-01-29
2008-01-29
Sherry, Michael (Department: 2836)
Electrical transmission or interconnection systems
Plural load circuit systems
Control of current or power
Reexamination Certificate
active
10740998
ABSTRACT:
A system and method for driving a load at a desired operating level. A driver is connected to a load. The load can be selected from a plurality of loads by a selection system, such as a multiplexer, or a single load can be utilized. Feedback from the load is provided to the driver for achieving the desired operating level. A zero temperature coefficient resistance formed by two resistors having different resistances can be used so that the driver emulates an ideal resistor having a substantially zero temperature coefficient, providing a temperature independent current to the load.
REFERENCES:
patent: 4463274 (1984-07-01), Swartz
patent: 5744984 (1998-04-01), Drapac et al.
patent: 6963175 (2005-11-01), Archenhold et al.
Baldwin David J.
Blackall Eric C.
Siniscalchi Patrick P.
Amaya Carlos
Brady III W. James
Kempler William B
Sherry Michael
Telecky , Jr. Frederick J.
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