Osram Gesellschaft MIT Beschraenkter Haftung

Osram Gesellschaft MIT Beschrankter Haftung

Xi Yuan He

Giovanni Scilla

Rui Ma

Yu He

Huajian Fan

Chi Man Chan

Ze Sheng Ye

Max Yue

The present invention discloses an LED module comprising: a waterproof enclosure; an LED accommodated in the waterproof enclosure; a wire for coupling the LED module with other LED modules and a driver; and a radiating unit set in the bottom of the waterproof enclosure and exposed to the external environment. The invention further provides an LED chain comprising the above said LED module and a driver coupled with the LED module. The LED chain according to the invention may have a high waterproof level, for example, IP65. The heat generated during the operation of the high power LED module may be transmitted to the external environment in time via a heat sink set on the LED module, thereby effective thermal management for the LED module and a long service life of the LED module may be obtained. Moreover, the finish surface of the driver may be made handsome by encapsulating the driver through the low pressure molding.

LED module, and LED chain containing the same

A driver arrangement for LED light sources includes a transformer having primary and secondary winding connections. A first electronic switch (SW) controls current flow through the primary winding, and a sensing resistor is coupled to the primary winding to produce a current sensing signal. A second electronic switch (SW) is sensitive to the sensing signal to switch off SWas current flow through the primary winding reaches a given threshold. SWis thus alternatively turned-on and off in alternating turn-on and switch-off phases to power the LED light source via the secondary winding. SWis a field effect transistor, preferably a MOSFET. The transformer is SELV-rated. The sensing resistor may be a variable resistor to adjust the duration of the on/off phases to permit controlled dimming.

Driver arrangement for LED lamps

A LED lighting arrangement includes a support body having mounted thereon one or more LED lighting sources and a driver or feeding the LED lighting sources. The support body includes a high-voltage section carrying the driver and a low-voltage section carrying, mounted on a heat sink, the light sources. An insulation barrier is provided between the high voltage section and the low-voltage section of the board with a twisted pair forming a wiring that traverses the insulation barrier to connect the driver and the LED lighting sources.

Mounting arrangement for LED lamps

Growing community of inventors

Guangzhou, China

Xi Yuan He