Linear lighting with multiple input voltages
AssigneeElemental LED, Inc.
InventorWilliam H. Avery, Jr.
Life of this patent
Estimating the term…
Abstract
Lighting circuits and strips of linear lighting that can accept either a lower voltage or a higher voltage are disclosed. In the lighting circuit, a repeating block including LED light engines and current-setting elements is divided into two sub-blocks. Terminals are provided that allow the sub-blocks to be connected to voltage and ground in various ways. When the two sub-blocks are connected electrically in parallel with one another, the lighting circuit accepts the lower voltage; when the two sub-blocks are connected electrically in series with one another, the lighting circuit accepts the higher voltage. Circuitry that automatically detects the applied voltage and switches between series and parallel configurations may be included in some embodiments.
Claims22
A lighting circuit, comprising:
- a first sub-block including
- one or more first LED light engines,
- at least one first current-setting component,
- a first terminal electrically connected to the one or more first LED light engines and the at least one first current-setting component for applying a voltage to the first sub-block, and
- a second terminal electrically connected to the one or more first LED light engines and the at least one first current-setting component for applying a ground or minus-return to the first sub-block;
- and
- a second sub-block, the second sub-block including
- one or more second LED light engines,
- at least one second current-setting component,
- a third terminal electrically connected to the one or more second LED light engines and the at least one second current-setting component for applying a voltage to the second sub-block, and
- a fourth terminal electrically connected to the one or more second LED light engines and the at least one second current-setting component for applying a ground or minus-return to the second sub-block;
- wherein the first terminal, the second terminal, the third terminal, and the fourth terminal are connectable such that the first sub-block and the second sub-block are connected electrically in series or electrically in parallel with respect to one another.
Linear lighting, comprising:
- an elongate, narrow printed circuit board (PCB) divided into two or more repeating blocks at cut points, the two or more repeating blocks being physically in series and electrically in parallel with one another, each of the two or more repeating blocks including
- a first sub-block including
- one or more first LED light engines,
- at least one first current-setting component,
- a first terminal electrically connected to the one or more first LED light engines and the at least one first current-setting component for applying a voltage to the first sub-block, and
- a second terminal electrically connected to the one or more first LED light engines and the at least one first current-setting component for applying a ground or minus-return to the first sub-block, and
- a second sub-block, the second sub-block including
- one or more second LED light engines,
- at least one second current-setting component,
- a third terminal electrically connected to the one or more second LED light engines and the at least one second current-setting component for applying a voltage to the second sub-block, and
- a fourth terminal electrically connected to the one or more second LED light engines and the at least one second current-setting component for applying a ground or minus-return to the second sub-block;
- wherein the first terminal, the second terminal, the third terminal, and the fourth terminal are connectable such that the first sub-block and the second sub-block are connected electrically in series or electrically in parallel with respect to one another.
Dependencies are inferred from the claim text.