# US 2014/0197743 A1 · Solid state lighting circuit and controls

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- Number: US 2014/0197743 A1
- Document ID: US20140197743A1
- Status: Published application
- Kind: A1
- Application number: 14/216,182
- Filed: 2014-03-17
- Published: 2014-07-17
- Earliest claimed: 2008-04-07
- Assignees: Metrospec Technology, L.L.C.
- Applicants: Metrospec Technology, L.L.C.
- Inventors: Henry V. Holec; Wm. Todd Crandell
- Web page: https://patentgrep.com/patent/US20140197743A1

## CPC

- F21V 23/005: {the substrate is supporting also the light source}
- H05B 45/395: Linear regulators
- H05B 45/48: having LEDs organised in strings and incorporating parallel shunting devices
- 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]
- 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)}
- F21K 9/20: Light sources comprising attachment means
- F21Y 2107/30: on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
- F21Y 2115/10: Light-emitting diodes [LED]
- H05K 2201/09309: Core having two or more power planes; Capacitive laminate of two power planes
- H05K 2201/10106: Light emitting diode [LED]
- H05K 2201/10166: Transistor
- Y02B 20/30: Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

## 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

### Claim 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.

### Claim 2 (depends on 1)

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

### Claim 3 (depends on 1)

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

### Claim 4 (depends on 1)

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

### Claim 5 (depends on 1)

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

### Claim 6 (depends on 1)

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.

### Claim 7 (depends on 6)

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

### Claim 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.

### Claim 9 (depends on 8)

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