Cable tester uses LEDs to find faults

This Design Idea describes a simple cable-test machine that visually shows continuity issues on a 16-wire cable harness for ultrasonic-parking-aid systems. A subcontractor produces the harness in low volumes, making it impractical to use an automated tester. + read more.

LEDs Brighten New Mustang

Ford's new 2010 Mustang has broadened its use of LEDs, placing the technology in the rear seat, as well as in map pockets, cup holders and even in the door sill plate. + read more.

Assembly at the Speed of LED

Bergquist Thermal Clad with pre-applied Bond-Ply 450 PA is simple to peel and place. It's specifically configured for Power LED applications and optimizes thermal performance and speeds assembly for applications like BlueSpan's Luxeon LED streetlight. + read more.

Thermal design guidelines for solid-state lighting applications using LEDs

Here are six critical steps necessary to developing a successful, cost-effective thermal design for an LED application. Two families of LED applications have been used to illustrate many of the design choices that are open to the thermal designer to satisfy these application issues. + read more.

 

2010 “Designing with LEDs” Workshop: Call for Papers

Do you have a good topic for a technical paper for the 2010 “Designing with LEDs” Workshop to be held March 17 at the Santa Clara Convention Center? We’re looking for papers on power control, thermal management, optics, and lighting control and networking. If so, please fire off an abstract summarizing your paper in 300 words or less and send it along with author information (name, title, company, and contact information) to me at mconner@reedbusiness.com. Deadline to submit is December 4.

The LED Workshop, which is the only event of its kind to focus on the HB LED drive and control electronics as well as thermal management, will be a great place to see and discuss the latest advances in this booming technology, and to network with fellow designers and developers. For more in... + read more

Here’s a list of micro-inverter companies (and some proposed new installations)

Reader Jim K left a comment on Monday’s post, “Micro-inverters offer one solution for optimizing solar efficiency,” asking for a list of micro-inverter companies. As mentioned, Enphase is the only one that I know of that’s shipping product, but here’s a list of companies which have made announcements at least of their intention to sell micro-inverters:

... + read more

Solar micro-inverter addresses capacitor reliability issues

The lead-in to this post is here: Micro-inverters offer one solution for optimizing solar efficiency.

Probably the most well-known micro-inverter company is Enphase, which sells a 200W inverter for about $200 or about $1/W. This compares with a 3kW string inverter for about $2,000 or about $0.66/W.  Enphase suggests that the additional $.33/W is compensated for by the lowered installation labor and investment costs.

... + read more

 


E-BOOK: Designing with LEDs Workshop

EDN’s recent Designing with LEDs workshop, held in Chicago, addressed topics such as power control, thermal management, optics and the impact of light­ing control and communication on system cost and usability. To make this educational material available to those unable to attend, we have published workshop materials as an e-book. + view resource.


WEBCAST: LED Manufacturers' Panel

The Designing with LEDs workshop (4/30/09) had some of the foremost experts in these fields giving keynotes, papers, and workshops. This webcast allows you to hear the LED Manufacturers' Panel presentation as from the workshop. + view resource.


REFERENCE GUIDE: LED Design Library

Inductive LED driver reference designs are available for powering a wide variety of white LED types of multiple colors and configurations with high power efficiency. Many designs offer high output current, for multiple LEDs in series, LED flash, or high-power LEDs. + view resource.


LED Driver Design in Minutes
National’s lighting expert shows how easy it is to create an LED design using National's WEBENCH LED Designer tool.