US 2007/0182341 A1 · Discharge lighting bulbs control system

Abstract

A device comprising energy saving circuitry incorporated within lighting systems of the type utilizing discharge lamps, wherein the circuitry includes at least one transformer having a primary and secondary windings oppositely wound to establish different fields of polarity. The primary winding is connectable across a supply voltage and the secondary winding is connected in series with the discharge lamps) load. A switching assembly is associated with each of the one or more transformers and is operative in a first position to connect the primary winding across the supply voltage, wherein a voltage of an opposite polarity is induced across the secondary winding. In a second operative position the one or more switch assemblies serve to disconnect the primary winding from across the supply and to shunt the primary winding, so that voltage across the secondary winding is zero (v).

Claims20

Dependent claims

A control circuit structured to regulate a supply voltage to a predetermined load, said control circuit comprising:

at least one transformer including primary and secondary windings structured to generate fields of opposite polarity,
said primary winding connected across the supply voltage and said secondary winding connected in series with the predetermined load,
at least one switching assembly comprising first and second operative positions and operatively associated with said one transformer,
said first operative position comprising said primary winding connected across the supply voltage to induce a voltage of opposite polarity across said secondary winding, and
said second operative position comprising a disconnection of said primary winding and a shunt thereof to define a zero voltage across said secondary winding.

2 more elements

A circuit assembly for a lighting system structured to control supply voltage to a load of one or more discharge bulbs, said circuit assembly comprising:

a plurality of transformers each including primary and secondary windings structured to generate fields of opposite polarity,
said primary winding of each of said plurality of transformers connected across the supply voltage and said secondary winding connected in series with the one or more discharge bulbs,
a plurality of switching assemblies each is operatively associated with a different one of said plurality of transformers and comprising first and second operative positions,
said first operative position of each of said plurality of switching assemblies comprising said primary winding of a corresponding one of said plurality of transformers connected across the supply voltage to induce a voltage of opposite polarity across said secondary winding of the corresponding one of the plurality of transformers, and said second operative position of each of said plurality of switching assemblies comprising a disconnection of said primary winding of a corresponding one of said plurality of transformers and a shunt thereof to define zero voltage across said secondary winding of the corresponding one of said plurality of transformers.

1 more element

Dependencies are inferred from the claim text.

Discharge lighting bulbs control system

Life of this patent

Discharge lighting bulbs control system

Life of this patent

Abstract

Claims20