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US 2007/0164714 A1Published application
Perceptible flickering reduction
AssigneeHewlett-Packard Development Company, L.P.
InventorsPeter Nicholson, David Smith, Kenneth Wade
Life of this patent
Estimating the term…
Abstract
Embodiments of reducing perceptible flicker are disclosed.
Claims19
A system comprising:
- a load;
- one or more switches to switch power received from a power source to power the load;
- and,
- a controller to control switching of the switches to deliver the power to the load to reduce perceptible flickering of one or more lights coupled to the power source.
1 more element
A power-providing subsystem for an electronic device having an electrical load, comprising:
- one or more switches to switch power received from alternating-current (AC) mains to power the electrical load;
- and,
- a controller to control switching of the switches to deliver power to the electrical load, based on a preconstructed profile specifying flicker perceptibility as a function of percentage of power available from the AC mains as deliverable to the electrical load, such that perceptible flickering of one or more lights outside of the electronic device and also powered by the AC mains is reduced.
A method comprising:
- receiving a signal representing a first amount of power to be provided to an electrical load, from the electrical load;
- determining a second amount of power to deliver to the electrical load, based on the first amount of power to be provided to the electrical load, to reduce perceptible flickering of one or more lights powered by a power source is reduced;
- and,
- causing one or more switches to switch power received from the power source to deliver the second amount of power to the electrical load.
1 more element
Dependencies are inferred from the claim text.