Semiconductor vendors show LED focus with new driver ICs at APEC 23 Feb 10
APEC LED-driver-IC announcements highlight PFC and efficiency, along with TRIAC dimming capabilities and single-stage power supplies. |
IC vendors tout LED backlight and luminaire drivers at Strategies in Light 22 Feb 10
Power and analog semiconductor specialists see market opportunity in supplying constant-current driver ICs for LED lighting. |
Coordinated schemes provide circuit protection for LED lighting (MAGAZINE) 06 Feb 10
Utilizing a coordinated circuit protection scheme based on several device types can help designers reduce component count, provide a safe and reliable product, comply with regulatory agency requirements, and reduce warranty and repair costs, writes FARAZ HASAN. |
Flexible drivers enable dynamic color-changing lighting projects (MAGAZINE) 03 Feb 10
The use of intelligent and flexible drivers allows OEMs to respond quickly to special project requirements, says GORDON ROUTLEDGE. |
China celebrates 60th National Day with LEDs 16 Nov 09
Beijing Leyard Co. and GULX Tech Co. provided spectacular LED displays, which made use of Macroblock drivers, for China’s 60th National Day. |
NXP unveils lifetime results for LED drivers
16 Nov 09
NXP is carrying out an accelerated lifetime test of its SSL2101 LED drivers, which have so far surpassed 7,000 hours with zero failures. |
MAGAZINE: Driver design plays key role in meeting customer demands for LED lighting 03 Aug 09
LED drivers are critical elements in LED lighting control systems, and require care in their design and selection so that the final product meets customer expectations, writes Tom Shearer. |
TridonicAtco and Dialog Semiconductor develop lighting-control ICs 20 Jul 09
The two companies will establish a joint development centre to develop integrated circuits that are essential for energy-efficient lighting. |
Dimmable GU10 LED lamp seeks approval
08 Jun 09
The UK Energy Saving Trust has received a submission from Elight for its dimmable GU10 lamp. |
WEB EXCLUSIVE: Advances in TRIAC dimmable drivers open way for lamp subsidies 30 May 09
Resonant asymmetric inductive supply (RAIS) technology provides LED lamps with a high degree of functionality across different dimmer types together with added driver efficiency. |
MAGAZINE: LED Design Forum: Optimized control schemes improve LED driver performance 30 May 09
A simplified control scheme built around an optimized HB-LED driver results in rapid start-up for good dynamic brightness control and other advantages, writes Peter Tod. |
Controlling consumers' expectations of LED lighting: why dimming is so important 24 Apr 09
Manufacturers of LED lighting products need to consider the control options for their products and understand the applications in which their products will be used, say Chris Salvestrini and Amanda Beebe. |
DESIGN FORUM: Avoiding thermal runaway when driving multiple LED strings
20 Apr 09
A current mirror and monitor can save a parallel string from failure.
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COMPANY PROFILE: Endicott Research Group, Inc. 27 Mar 09
ERG's core focus - power conversion and control – ranges from LED drivers for LCD backlights to new LED driver solutions for offline and DC-powered SSL applications. |
COMPANY PROFILE: RECOM Power Inc. 01 Mar 09
The company’s core focus – development & design, production and marketing of power converters – spans three continents, ensuring close proximity to its customer base. |
DC power distribution favors LED lighting 18 Feb 09
A low-voltage DC power standard could accelerate the conversion to LED lighting and create an enabling infrastructure for the workplace, writes Brian Patterson and Paula Ziegenbein. |
Driver IC design ensures optimum performance of LED backlighting
18 Feb 09
LED backlight drivers are the “wizards behind the curtain” that ensure a display’s visual performance will remain as specified regardless of the operating conditions, says Michael Jennings.
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Freescale and Samsung collaborate on LED backlights 10 Nov 08
Freescale expects that its LED driver ICs will complement Samsung’s advanced LED backlighting technology. |
TECH NOTES: Vicor's flexible, accurate & efficient power solutions for LED backlighting applications 20 Oct 08
V•I Chips enable high-current, low-voltage distribution inside displays |
Prize-winning LED lamps demand high-efficiency LED drivers 25 Jun 08
The race to build replacement LED lamps for the Bright Tomorrow Lighting Prize will require the development of advanced LED drivers, according to Doug Bailey.
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Diodes Incorporated closes acquisition of Zetex plc 13 Jun 08
The UK-based manufacturer of LED driver ICs has been bought by a Texas-based semiconductor manufacturer. |
Lynk Labs adds Cree to AC LED technology supplier network 23 May 08
LynkLabs is now incorporating Cree XLamp LEDs in to its new range of GeoLite linear AC LED systems. |
An alternate way of driving LEDs
14 May 08
Several lighting manufacturers have recently incorporated AC-driven LEDs into their lighting fixtures. Tim Whitaker looks at this emerging technology. |
Constant power LED driver architecture reduces cost for offline LED ballasts 13 May 08
In his fourth article on ballasts, Iain Mosely describes how the constant power operation inherent in a peak-current-controlled discontinuous mode flyback converter can deliver good drive characteristics for LED applications. |
Pulse-driven LEDs have higher apparent brightness 05 May 08
Human perception studies by a Japanese university indicate that pulse-driven LEDs appear up to twice as bright. |
Driver ICs for HB LEDs: a large and growing market 13 Mar 08
The total market for HB LED driver ICs is forecast to grow to more than $1.9 billion in 2011, according to Vrinda Bhandarkar and Bob Steele of Strategies Unlimited. |
Catalyst granted patent on switching architecture for LED lighting
22 Feb 08
A new patent should enable a simpler, smaller, more cost-effective and far more power-efficient "green" LED driver alternative to linear regulators. |
Microsemi driver technology improves LED backlights 04 Jan 08
At the 2008 International CES this week, Microsemi will unveil a new driver technology controlling large clusters of LEDs in LCD backlights. |
HB LED driver IC market to exceed $1.9 billion in 2011
07 Dec 07
The latest LED market report from Strategies Unlimited predicts strong growth in the driver IC market driven by general illumination, signs and displays, and automotive applications. |
Boost converter LED drive systems for emergency backup lighting 06 Dec 07
In the third in a series of articles on power converters, Iain Mosely describes how the Boost converter switching topology can be used to drive LED systems for emergency backup lighting. |
TECH NOTES: Programmable analog for high power LED color mixing applications 20 Nov 07
Designers of systems that utilize LED color-mixing would be well served to understand the advantages offered by programmable analog ICs, according to Gavin Hesse and Patrick Prendergast of Cypress Semiconductor. |
Macroblock expects to launch Initial Public Offering 29 Oct 07
Macroblock, a mixed-signal IC company focused on the LED industry, expects to launch an IPO on October 29, 2007. |
Buck converter LED drive systems for automotive applications 17 Oct 07
In this second of a series of articles on power converters, Iain Mosely describes how the Buck converter switching topology can be used to drive LEDs efficiently in demanding automotive applications. |
Switched-mode power converters drive LEDs more efficiently 30 Aug 07
Several different power converter topologies can be employed, depending on the circumstances, to provide efficient control of LED systems, writes Iain Moseley. |
Driving LED lamps – some simple design guidelines 13 Aug 07
LEDs can easily be integrated into a circuit design provided that certain design rules are observed, writes Julian Cooper. |
Make sure the LED luminaire you choose is a "Sleeping Beauty" 30 Jul 07
Some LED luminaires draw current even when there is no emission, which reduces efficiency and negates one advantage of the technology, reports Brian Owen. |
LED lighting control device operates with DMX fixtures 18 Jul 07
LUX Italia has developed a sophisticated and user-friendly lighting control device that uses DMX to operate multiple LED fixtures. |
Power Vector, MC Lights contribute to Harbinger LED project 26 Jun 07
Artist Adrian Gollner has used LEDs to realize a lighting project that responds to wind speed, on top of a condominium in Toronto. |
Cypress EZ-Color controllers assist LED lighting designs 18 Jun 07
EZ-Color microcontrollers from Cypress can be programmed without coding using a software interface tool, and use a new signal modulation technology. |
Supercapacitors brighten prospects for power LED flash in camera phones 27 Feb 07
The combination of power LEDs and supercapacitors could provide the crucial breakthrough that will enable high quality LED flash in camera phones, with low current draw and small form factors. |
Power Integrations design kit enables EMC-compliant LED lightbulbs 22 Feb 07
An ultra-small power supply unit is designed to fit into an LED lightbulb socket, and enables LED lightbulbs to meet EMC requirements. |
