US 2025/0084971 A1 · High-Voltage LED Luminaire

Abstract

A printed circuit board (PCB) is adapted to accept high-voltage, alternating-current (AC) power. Mounted on the PCB are two series of LED light engines. A first series of LED light engines is configured to illuminate during a first portion of the AC power cycle, and a second series of LED light engines is configured to illuminate during a second portion of the AC power cycle. The first portion and the second portion are different from one another. For example, the first series may be configured to illuminate during the positive half-cycle, and the second series may be configured to illuminate during the negative half-cycle. LED light engines of the first series and the second series may be interdigitated with one another on the PCB.

Claims11

Dependent claims

A luminaire, comprising:

a printed circuit board (PCB) adapted to receive high-voltage, alternating-current (AC) power, the power having an AC power cycle;
a first series of LED light engines mounted on the PCB and connected so as to receive the power;
and
a second series of LED light engines mounted on the PCB and connected so as to receive the power;
wherein the first series of LED light engines and the second series of LED light engines are configured such that the first series of LED light engines illuminates during a first portion of the AC power cycle and the second series of LED light engines illuminates during a second portion of the AC power cycle, the first portion being different than the second portion.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/963,007Filed 27 Nov 2024

Priority

30 Jun 2022

Published

13 Mar 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

F21S 4/28
With light sources held by or within elongate supports: rigid, e.g. LED bars
F21V 19/003
The light sources being semiconductors devices, e.g. LEDs: fastening of light source holders, e.g. of circuit boards or substrates holding light…
F21Y 2103/10
Elongate light sources, e.g. fluorescent tubes: comprising a linear array of point-like light-generating elements
F21Y 2113/00
Combination of light sources

Family

Application63/357,150Us provisional application · filed 30 Jun 2022

Application18/161,278Continuation in part · filed 30 Jan 2023

Application63/498,933Us provisional application · filed 28 Apr 2023

Application18/963,007Continuation

US 11,821,597 B1Related patent

US 2025/0084971 A1This patent

From the US filing history. Foreign family members aren’t listed.

High-Voltage LED Luminaire

Life of this patent

High-Voltage LED Luminaire

Life of this patent

Abstract

Claims11