Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2011-08-16
2011-08-16
Choi, Jacob Y (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
C315S246000, C323S285000
Reexamination Certificate
active
07999487
ABSTRACT:
Electronic circuits and methods include provisions for passing a first current through a diode during a first time interval and for passing a second different current through the diode during a second different time interval. The first current is selected to achieve a predetermined voltage at a node of the diode. A duty cycle of the first current relative to the second current is selected to achieve a predetermined average current passing through the diode. In some arrangements, the diode is a light emitting diode.
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Allegro Microsystems Inc.
Choi Jacob Y
Daly, Crowley & Mofford & Durkee, LLP
Luong Henry
LandOfFree
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