US Pat. No. 9,992,830

POWER DISTRIBUTION

Greengage Lighting Limite...

1. Apparatus for providing a direct current to a load comprising one or more light emitting diodes, the apparatus comprising: a rectifier operatively connectable to a secondary winding of a transformer whose primary winding is for carrying a high-frequency alternating current; and a switch configured to periodically interrupt a current originating from the rectifier, thereby reducing an average level of the direct current provided to the load, wherein:the apparatus comprises a first inductor configured to smooth the current originating from the rectifier, thereby providing a first current;
the switch is configured to periodically interrupt the first current, thereby providing a second current; and
the apparatus further comprises a second inductor configured to smooth the second current.

US Pat. No. 10,433,379

POWER DISTRIBUTION

Greengage Lighting Limite...

1. Apparatus for providing a direct current to a load, at first and second main outputs, the apparatus comprising:a synchronous rectifier operatively connectable to a secondary winding of a transformer whose primary winding is for carrying high-frequency alternating current; the synchronous rectifier having first and second outputs;
wherein the synchronous rectifier comprises first and second switches and a control circuit comprising:
a further secondary winding of the transformer, a control port configured to control the first and second switches of the synchronous rectifier and thereby to turn the synchronous rectifier on and off, and a subcircuitry configured to provide a voltage to the control port;
wherein the first and second rectifier outputs are directly connected to the first and second main outputs respectively:
wherein the subcircuitry is connected to the first and second main outputs.

US Pat. No. 10,002,702

COUPLER FOR USE IN A POWER DISTRIBUTION SYSTEM

GREENGAGE LIGHTING LIMITE...

1. A coupler comprising a core, the core comprising one part and another part, wherein the one part is slideable with respect to the other part in one direction through a central position to open at least one channel and in another direction back through the central position to open at least one other channel and wherein the coupler is configured to continuously urge the parts together to remain in contact with one another during the said sliding of the parts with respect to one another, wherein the said directions are substantially perpendicular to the said channels.