LED filaments manufactured with GaN-on-Silicon

30th July 2015
Posted By : Nat Bowers
LED filaments manufactured with GaN-on-Silicon

Manufactured with the company's MaGIC GaN-on-Silicon LEDs, Plessey has announced the launch of a range of LED filaments. They are designed for the surging filament bulb market where these replacement lamps have far better performance, but still maintain the physical appearance of incandescent lamps.

The traditional tungsten incandescent light bulb has been phased out in favour of LED technology providing the most reliable and efficient lighting solutions. Plessey's Chip-on-Board LED filaments create the same amount of light, while consuming less energy and offering longer life.

The LED filaments are designed with unique terminations so that they can be handled and spot welded by existing high volume fully automated glass lamp manufacturing lines. In addition to that, Plessey has incorporated a bespoke approach to controlling the current and Vf of the filaments when the filaments are driven in a bridge configuration.

Dr. Keith Strickland, CTO, Plessey, said, "We have taken our existing Chip-Scale-Packaging technology, also used for our dotLEDs, into a revised format for the filament. Not only do we have an improvement in terms of manufacturability with GaN-on-Silicon and enhanced the power control for filament resistors, but Plessey will also be incorporating other active and passive electronic components for Chip-on-Board and Chip-Scale-Packaging solutions in next-gen filaments. Thermal performance and customisation are key to our filament product portfolio and Plessey remains committed to bring to market unique LED products through our integrated approach to solid state lighting applications."

Plessey's PLF series of filaments come in a variety of lengths, light output and colour temperatures from 2200K to 6500K.


You must be logged in to comment

Write a comment

No comments




Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

Southern Manufacturing & Electronics 2019
5th February 2019
United Kingdom Farnborough
embedded world 2019
26th February 2019
Germany Nuremberg
Wearable Tech Show 2019
12th March 2019
United Kingdom London
AMPER 2019
19th March 2019
Czech Republic Brno Exhibition Centre