Light String of LEDS
First Claim
1. A light string for use with a source of electrical current, said light string comprising:
- (a) an electrical plug;
(b) an electrical receptacle;
(c) light-emitting diodes arranged in groups interconnected electrically in series and connected in series with said electrical plug and said electrical receptacle, each group of said groups having plural sets of light-emitting diodes, each set of said plural sets having at least one light-emitting diode, said plural sets being interconnected electrically in parallel; and
(d) a voltage regulator arranged electrically in parallel with said each group, said voltage regulator maintaining electrical current in said plural sets of light-emitting diodes of said each group when said at least one light emitting diode in said each set fails.
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Accused Products
Abstract
An LED light string includes series-connected groups of individual LEDs or sets of LEDs, with each LED or set of LEDs in each group being electrically in parallel with each other LED or set of LEDs and with a parallel group device that regulates voltage within the group when LEDs in that group fail. The current to the LEDs is rectified, either in the light string plug or receptacle, preferably the latter. The color of each light in the group, or colors of each set in the group must be the same but successive groups can include LEDs of different colors. In an alternative embodiment, the LEDs can be oriented so that half light on during the first half of an alternating current cycle and the other half light during the second half of an alternating current cycle.
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Citations
20 Claims
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1. A light string for use with a source of electrical current, said light string comprising:
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(a) an electrical plug; (b) an electrical receptacle; (c) light-emitting diodes arranged in groups interconnected electrically in series and connected in series with said electrical plug and said electrical receptacle, each group of said groups having plural sets of light-emitting diodes, each set of said plural sets having at least one light-emitting diode, said plural sets being interconnected electrically in parallel; and (d) a voltage regulator arranged electrically in parallel with said each group, said voltage regulator maintaining electrical current in said plural sets of light-emitting diodes of said each group when said at least one light emitting diode in said each set fails. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A light string for use with a source of electrical current, said light string comprising:
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(a) an electrical plug; (b) an electrical receptacle; (c) light-emitting diodes arranged in groups interconnected electrically in series and connected in series with said electrical plug and said electrical receptacle, each group of said groups having plural sets of light-emitting diodes, each set of said plural sets having at least one light-emitting diode, said plural sets being interconnected electrically in parallel, said light emitting diodes being arranged to pass electrical current at least 50% of the time. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification