Illumination intensity control

Details Illumination intensity control Illumination intensity control

2011-04-19

2011-04-19

Vu, David Hung (Department: 2821)

Electric lamp and discharge devices: systems

Time-controlled

C315S291000, C315S307000

Reexamination Certificate

active

07928671

ABSTRACT:
A method for controlling average current. The method enables control of average current independent of instantaneous current. The average current is controlled by changing the number of unit pulses provided during a time interval. The unit pulses are used to switch the delivery of current to the load.

REFERENCES:
patent: 4286195 (1981-08-01), Swinea, Jr.
patent: 6016038 (2000-01-01), Mueller et al.
patent: 6628109 (2003-09-01), Rincon-Mora

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