Floating surge stopper provides unlimited overvoltage protection
Altera to integrate Enpirion power interfaces into its FPGAs
Automation CAN group plans permanent interoperability test capability
Opening up new user-interaction scenarios with Time-of-Flight measurements 
Goepel electronic initiates Cooperation Network with EMS companies
The number of charging stations for electrical vehicles is expected to soar by 20220, study says 
In automotive lighting, LEDs still lacks of horsepower, study says
Ultra-low-power SoC supports world's smallest Bluetooth location stickers 
Imec and Renesas collaborate on ultra-low power short range radios
European Semiconductor Distribution Market shows sequential recovery in Q1/CY13
Omron appoints TME to strengthen presence in Eastern Europe
Avnet Supply Chain Solutions launches RaBET Tool in Europe
sureCore receives £250K SMART Award to prototype its low power SRAM technology
Amantys partners Fuji Electric to launch IGBT gate drivers for wind and solar markets
Cambridge Nanotherm starts mass manufacturing of thermal management substrate
AC LED module does away with electrolytic capacitors, ballast
February 09, 2012 // Christoph Hammerschmidt
Seoul Semiconductor has launched an LED module based on its AC-powered Acrich2 LED series. Through its innovative architecture, the module can fully apply the LED benefits - much better than conventional DC powered LED modules.
Since it can be powered directly off the mains AC power supply, the module does not require an AC/DC converter and thus no electrolytic capacitor. These capacitors, however, are characterized by a much shorter lifetime than all other components in are the limiting factor for the service lifetime of LED lighting. In addition, the converters are affected by losses and thus reduce the overall efficiency.
The Acrich2 modules also get by without the ballast associated with CFL lamps. While luminary manufacturers typically prefer solutions for CFL solutions that are compatible with the existing circuitry (i.e. ballast), this circuitry significantly reduces the efficiency. Thus, the rod-shaped AC-powered LED modules promise a long lifetime and better efficiency - manufacturer Seoul Semiconductor promises twice the lifetime of solutions involving an AC/DC converter, a power factor of 97 percent and an overall energy efficiency of 90 percent.
"Because of this optimized and simplified system design, the Acrich2 module is far superior to CFL lamps and DC-powered fluorescing LED luminaires", says Seoul Semi managing director Manuel Zarauza. Users benefit from longer lifetime and lower energy consumption and at the same time help to reduce CO2 emissions, he added.
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Technology News
Floating surge stopper provides unlimited overvoltage protection
May 17, 2013
Protecting sensitive electronic circuitry from voltage transients is an essential part of any system be it automotive, industrial, ...
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Technology News
Altera to integrate Enpirion power interfaces into its FPGAs
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Technology News
Automation CAN group plans permanent interoperability test capability
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Feature Articles
Opening up new user-interaction scenarios with Time-of-Flight measurements
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Technology News
Goepel electronic initiates Cooperation Network with EMS companies
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Market News
The number of charging stations for electrical vehicles is expected to soar by 20220, study says
May 17, 2013
The number of electric vehicle charging stations is set to soar globally by 2020, supporting a shift in driving away from ...
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Market News
In automotive lighting, LEDs still lacks of horsepower, study says
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Technology News
Ultra-low-power SoC supports world's smallest Bluetooth location stickers
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Business News
Imec and Renesas collaborate on ultra-low power short range radios
Technical papers
Filter Wizard
Check out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
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December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.
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