Solid State Lighting Circuit and Controls

• US 20090251068A1
• Filed: 04/07/2009
• Published: 10/08/2009
• Est. Priority Date: 04/07/2008
• Status: Active Grant

• Current Assignee: MetroSpec Technology LLC
• Original Assignee: MetroSpec Technology LLC
• Inventors: Crandell, Wm. Todd, Holec, Henry V.
• Granted Patent: US 8,410,720 B2
• Time in Patent Office: Days
• US Class Current: 315/294
• CPC Class Codes: F21K 9/20 Light sources comprising attachment means
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21Y 2107/30 on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/395 Linear regulators
• CPC Class Codes: H05B 45/48 having LEDs organised in strings and incorporating parallel shunting devices
• CPC Class Codes: H05B 45/60 Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
• CPC Class Codes: H05K 1/0263 High current adaptations, e.g. printed high current conductors or using auxiliary non-printed means; Fine and coarse circuit patterns on one circuit board H05K1/0293 takes precedence
• CPC Class Codes: H05K 2201/09309 Core having two or more power planes; Capacitive laminate of two power planes
• CPC Class Codes: H05K 2201/10106 Light emitting diode [LED]
• CPC Class Codes: H05K 2201/10166 Transistor
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

In some embodiments, a solid state lighting circuit may include one or more of the following features: (a) a plurality of emitters operably connected to a power supply (b) the power supply operably coupled in series with a current limiting device, where one or more of the emitters is bypassed with a switched circuit, and (c) at least one MOSFET switch operably coupled to the voltage divider circuit.

Claims

1. A solid state lighting circuit, comprising:

a plurality of emitters operably connected to a power supply; and

the power supply operably coupled in series with a current limiting device, where one or more of the emitters is bypassed with a switched circuit.

2. The circuit of claim 1, wherein a controlling signal for the switched circuit is derived from the power supply.

3. The circuit of claim 1, wherein a controlling signal could be from any source.

4. The circuit of claim 1, wherein the power supply is an AC power source.

5. The circuit of claim 1, further comprising at least one MOSFET switch operably coupled to the voltage divider circuit.

6. The circuit of claim 1, wherein the voltage divider circuit allows the circuit board to regulate voltage and thus dim the at least one emitter.

7. The circuit of claim 6, wherein a plurality of emitters can be dimmed.

8. A solid state lighting circuit, comprising:

a plurality of emitters operably connected to a power supply; and

the power supply operably coupled in series with a current limiting device, where one or more ballast can be bypassed with a switched circuit.

9. The circuit of claim 8, wherein the plurality of emitters can be bypassed with the switching circuit.