Dimmer for Light Emitting Diodes and Fluorescent Bulbs
AssigneeCooper Technologies Company
InventorsRahul Goyal, Oscar Neundorfer, James Fair
Life of this patent
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Abstract
A dimmer system for a luminaire is provided. The dimmer system has a dimmer that receives a first current and supplies a reduced-magnitude current. The dimmer system also has a boosting system that receives the reduced-magnitude current and supplies a boosted current to a light source or lamp if the reduced-magnitude current is being received in conjunction with the initial turn-on of the dimmer. The boosted current can be provided for a predetermined period of time. The boosted current can also be provided as pulses of boosted current interspersed with pulses of the reduced-magnitude current. The boosted current can have the magnitude of the first current or range from 70% to 100% of the first current.
Claims21
A dimmer system for a luminaire, comprising:
- a light source;
- a dimmer configured to receive a first current and provide a reduced-magnitude current;
- and
- a boosting system electrically coupled to the dimmer, wherein the boosting system receives the reduced-magnitude current and determines whether the reduced-magnitude current is being received as part of the turn-on of the dimmer and wherein upon determining that the reduced-magnitude current is being received as part of the initial turn-on of the dimmer, provides a boosted current to the light source.
A method for dimming a light source, comprising:
- receiving a first current;
- reducing the magnitude of the first current;
- receiving the reduced magnitude current in a boosting system;
- and
- providing a boosted current to a light source.
A method for providing light, comprising:
- receiving a first current from a power source;
- reducing the magnitude of the first current based on the setting of a dimmer;
- supplying the reduced-magnitude current to a boosting system;
- determining whether the reduced-magnitude current is being received in connection with the turn-on of the dimmer;
- and
- in response to determining that the reduced-magnitude current is being received in connection with the turn-on of the dimmer, supplying a boosted current to a light source.
Dependencies are inferred from the claim text.