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US 8,558,249 B1Granted
Rectifier structures for AC LED systems
AssigneeApplied Lighting Solutions, LLC
InventorFrank Shum
Life of this patent
Estimating the term…
Abstract
A space efficient arrangement of at least one LED with a rectifying element and a current limiting element forms a compact module that can be powered using an AC voltage source.
Claims20
A system comprising a packaged component comprising:
- an AC power input to the packaged component;
- a first die comprising a first light emitting diode;
- a second die comprising of a second light emitting diode;
- a third die comprising a silicon rectifying element,
- wherein the third die is electrically coupled to the first and second die,
- the first and second dies are electrically coupled to produce a combined forward voltage greater than the forward voltage of either the first or second die,
- a first current limiting element, comprising a first terminal coupled to the AC power input and a second terminal coupled to the rectifying element, and
- the first, second, and third dies are formed on a one side of a planar substrate;
- and
- a second current limiting element, comprising a first terminal coupled to the rectifying element and a second terminal coupled to the second light emitting diode.
7 more elements
A system comprising a packaged component comprising:
- an AC power input to the packaged component;
- a first die comprising a first light emitting diode;
- a second die comprising of a second light emitting diode;
- and
- a third die comprising a silicon rectifying element,
- wherein the third die is electrically coupled to the first and second die,
- the first and second dies are electrically coupled to produce a combined forward voltage greater than the forward voltage of either the first or second die,
- a current limiting element, comprising a first terminal coupled to a first node of the rectifying element and a second terminal coupled to a second node of the rectifying element,
- the first and second dies are encapsulated together using a first medium, and the rectifying element is encapsulated using a second medium, wherein the second medium is separate from the first medium, and
- the second medium is not light transmitting.
7 more elements
A system comprising a packaged component comprising:
- an AC power input to the packaged component;
- a first die comprising a of a first light emitting diode;
- a second die comprising of a second light emitting diode;
- and
- a third die comprising a silicon rectifying element rectifier,
- wherein the third die is electrically coupled to the first and second die,
- the first and second dies are electrically coupled to produce a combined forward voltage greater than the forward voltage of either the first or second die,
- a current limiting element, comprising a first terminal coupled to the AC power input and a second terminal coupled to the AC power input,
- the first, second, and third dies are formed on a one side of a planar substrate, and
- the first, second, and third dies are encapsulated together using a light transmitting medium.
7 more elements
Dependencies are inferred from the claim text.