A recent Semiconductor Today article reveals how indium gallium nitride (InGaN) light-emitting diodes (LEDs) exhibit an unwanted drop-off in efficiency as the device current increases. While several solutions have been proposed, the debate about the cause continues. Current developments from various companies and research universities include two competing theories that explain the efficiency drop, Auger recombination, and the difficulty of heavy-mass holes to navigate the multiple quantum well (MQW) structure. Have you been struggling with this efficiency problem? Who do you think is pursuing the right solution?

Triad specializes in custom magnetics. We have experienced engineers ready to assist you. Our Design Center uses a concurrent design process which will speed you from spec, to prototype, to test, and finally to qualification. Triad's capabilities include designing to a wide range of safety agencies: UL/CSA/TUV/VDE/CE with insulations systems rated from 130C-220C.

Advertisement includes:
  50 words of text, including bold heading
  One image (product or logo); 100 x 100 pixels (file size no
    larger than 8kbs)
  2 trackable links:
    —  One link to the company's own Web site
    —  One link to the company's representation on the
          GlobalSpec site
    —  Link on product image will go to the detailed product
          page

A newly introduced precision, zero-drift operational amplifier is capable of achieving an ultra-low noise floor while consuming minimum power. The amplifier device relies on a proprietary chopping technique to achieve high levels of accuracy, making it ideal for instrumentation and medical applications that require precision over time and temperature without system calibration.

Designed specifically for high-temperature environments, a newly introduced precision instrumentation amplifier can achieve low-noise operation even at high temperatures. Equipment incorporating the device can operate longer and with fewer maintenance problems. The amplifier's high-temperature capability makes it ideal for use in down-hole drilling and other harsh environment applications, while its low-noise performance is suited to nuclear magnetic resonance spectroscopy and gamma-ray detection applications.

Gallium nitride (GaN) power devices offer game-changing potential in power conversion electronics. A lengthy article in Planet Analog analyzes current GaN-on-silicon (Si) developments and provides a comparison of on-resistance measurements between Si, silicon carbide (SiC), and GaN power devices.

A new family of automotive-qualified MOSFETs is optimized for low on-state resistance and does not require an additional charge pump for gate drive, thus reducing board space and component count. The device family, comprising 55 V and 150 V standard gate drive N-Channel MOSFETs, and -55 V and -100 V standard gate drive P-channel MOSFETs, is AEC-Q101 qualified for automotive applications and aimed at high-side switch applications in internal combustion engine (ICE), hybrid and full electric vehicles.

VMI's 10kV opto-diode is designed to be used with external light sources such as LEDs. Features include:

•  Versatility
•  High gain

Opto-diode leakage current is used to monitor and control remote systems. Opto-diodes are useful in applications requiring high isolation and can be used as opto-couplers. Apec Booth #430.

Advertisement includes:
  50 words of text, including bold heading
  One image (product or logo); 100 x 100 pixels (file size no
   larger than 8kbs)
  2 trackable links:
    —  One link to the company's own Web site
    —  One link to the company's representation on the
          GlobalSpec site
    —  Link on product image will go to the detailed product
          page

The wireless mobile evolution from 3G to 4G is taking place with the expectation that digital signal processing (DSP) integrated circuits (ICs) will power the race to 4G. Next-generation basestations will increase mobile connectivity thanks to use of software-defined radios (SDRs) to overlay emerging 4G networks with legacy 3G, hard-coded accelerators, and multicore computer processing units (CPUs).

A major bug has been discovered in a support chip integral to Intel's new second-generation core — the Sandy Bridge integrated circuit (IC) set. A recent online PC Magazine article describes the glitch, which primarily affects desktop personal computers (PCs) and components, and highlights seven things you need to know about the bug.

Tremendous advances in supercapacitor technology have been achieved this past decade and the latest generation of pulse supercapacitors have been designed for ultra low equivalent series resistance (ESR) in order to supply peak current on demand. In a recent eeweb.com article, AVX application engineer Chris Reynolds sheds light on the evolution of supercapacitors, with a review of the two main directions taken in their development.

Fail-safe or fusible wirewound resistors not only offer a more cost-effective solution than the traditional alternative wirewound resistor/fuse combination, but they also provide reliable, repeatable fusing characteristics, making them ideal for use in many high-temperature, power-hungry applications. Stackpole Electronics Director of Marketing Kory Schroeder reviews fusible wirewound resistor technology, product requirements, and design advantages.

MPS Industries offers a full line of standard and custom design magnetic components for medical instrumentation and medical switch mode power supply applications. Our line of medical grade power transformers, common mode chokes, and video isolation transformers are designed to comply with IEC60950 and UL60601 requirements for reinforced isolation.

Advertisement includes:
  50 words of text, including bold heading
  One image (product or logo); 100 x 100 pixels (file size no
   larger than 8kbs)
  2 trackable links:
    —  One link to the company's own Web site
    —  One link to the company's representation on the
          GlobalSpec site
    —  Link on product image will go to the detailed product
          page

Gain the Latest Project Management Credentials Online!

Be among the first to receive PMBOK® Guide — Fourth Edition-based training. Learn 100% online from acclaimed Villanova University. Save up to $1,540 now!

Advertisement includes:
  30 words of text, including bold
   heading
  One image (product or logo); 100 x
   100 pixels (file size no larger than
   8kbs)
  2 trackable links:
    —  One link to the company's own
          Web site
    —  One link to the company's
          representation on the GlobalSpec
          site
    —  Link on logo or image will go to
          one of the two links above