The market research firm IDTechEx recently updated its predictions for developments in organic LED (OLED) lighting technology. Its conclusion: Things look a bit hazy. OLEDs faced a challenge…
The difference between grounding and bonding
Where the National Electrical Code (NEC) has been enacted into a jurisdiction’s body of law, it mandates every aspect of electrical installations from the point of view of…
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The lucky four: Engineers get free trip to Germany’s Hanover Fair
The world’s largest enclosure manufacturer Rittal Corp. has picked the winners of its “Win a Trip to Hannover Fair with Rittal!” contest: Andrew Neeld, Automation Engineer of Sedro…
Measuring wireless charging efficiency in the real world
by John Perzow, Wireless Power Consortium When it comes to energy efficiency, there are significant differences in competing wireless charging methods. There are a lot of claims made about the…
GaN components boost power density in supplies
by Eric Persson, Infineon Technologies To understand why gallium-nitride components shrink the size of power supplies, examine how they dissipate energy at high frequencies. Silicon power FETs have…
Compensating for temperature in high-frequency rectifier diodes
by Koji Ikeda, Sanken Electric Co. and K.C. Nishio, Allegro Micro Systems Over-temperature can be a problem in high-performance switching supplies. New power rectifier diodes build in safeguards…
A close look at the Level VI power supply spec
by Jeff Schnabel, CUI Inc. DOE power supply efficiency specifications target a broader array of power supplies to save energy and reduce greenhouse-gas emissions. Market enthusiasm for new…
Basics of designing with permanent magnets
by Stan Trout, Owner/Metallurgist, Spontaneous Materials It can be tricky to correctly specify magnetic materials for power circuits and actuators. An understanding of definitions and common properties serves…
Researchers 3D-print supercaps with aerogels
Super-compact ultracapacitors could come out of work now progressing at the Lawrence Livermore National Lab where researchers are extruding graphene aerogel on a special 3D printer. The 3D-printing…
