Military, Aerospace & Hi-Rel

February 2014

Littelfuse High-Reliability TVS Diodes

Littelfuse offers custom upscreening and sorting for hi-rel TVS diodes

Littelfuse, a leader in circuit protection, offers users the ability to customize the upscreening and sorting process flows for High-Reliability Transient Voltage Suppression (TVS) Diodes. These components protect sensitive electronic equipment from voltage transients induced by lightning surge and other transient vo

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Date:

02/24/2014

Astronaut John H. Glenn Jr. With Mercury "Friendship 7" Spacecraft

Florida Student Astronaut Challenge finals set for March 2014

The action is at the Kennedy Space Center March 7, 8 and 9, as almost 100 Florida high school students launch their final efforts to take the prize. The Florida Student Astronaut Challenge is a unique opportunity for high school students to engage in a competition focused on aerospace science. In addition

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Date:

02/20/2014

Digital power cuts time-to-market for industrial applications

Patrick Le Fèvre, Ericsson Power Modules

Given the range of industrial applications is extremely diversified – from very small sensors powered by energy harvesting to mega processors used for process control and huge data computing capabilities required by some industrial equipment – the challenge for power designers remains the selection of

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Date:

02/18/2014

Boosting output in high-voltage op-amps with a current buffer

Joe Kyriakakis, Apex Microtechnology

Delivering more than 200mA of output current can be a serious challenge for many high-voltage operational amplifiers. But for high voltage applications requiring as much as 1A of current, it is possible to meet this spec by pairing a current buffer with the op amp. What the current buffer brings to this arrangement is

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Date:

02/18/2014

H grade and military MP grade versions of the LTC3615 and LTC3615-1, high efficiency, 4MHz synchronous buck regulators

Dual synchronous step-down regulators with DDR memory now in hi-rel H Grade & military MP Grade to +150°C

Linear Technology introduces high reliability H grade and military MP grade versions of the LTC3615 and LTC3615-1, high efficiency, 4MHz synchronous buck regulators that incorporate a constant frequency, current-mode architecture. Low resistance internal switches enable the LTC3615 to deliver up to 3A of continuous ou

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Date:

02/18/2014

Powering low-voltage devices from an intermediate-bus voltage

Willie Chan & Jason Sekanina, Linear Technology

Intermediate bus voltages from 24V to 28V (nominal) are commonplace in industrial, aerospace and defense systems, where series-connected batteries may be a backup power source and 12V bus architectures tend to be impractical due to distribution losses. The widening voltage gap between the system bus and the po

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Date:

02/17/2014

Advanced packaging critical to power system performance

Doug Ping, Vicor

Packaging for power electronics has evolved from simple metal bending to advanced materials and thermo-mechanical design, and from freestanding supply to integrated power management. System-size reductions made possible by higher switching frequencies and semiconductor miniaturization drove the early part of th

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Date:

02/16/2014

Results of a power supply failure survey

Dr. Ray Ridley, President, Ridley Engineering

We here at Ridley Engineering recently conducted a survey with a group of almost 3,000 active power supply design engineers to discover the various reasons and circumstances they have encountered power supplies that failed. The experiences the engineers shared with us were very enlightening, and this article su

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Date:

02/15/2014

Reduce EMI & improve efficiency with a switcher design

Christian Kueck, Linear Technology

Switching regulators are an excellent replacement for linear regulators in areas where low heat dissipation and high efficiency are valued. The switching regulator is typically the first active component on the input power bus line, and therefore has a significant impact on the EMI performance of the complete co

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Date:

02/11/2014

Stackpole's RHC2512 2W-rated 2512 chip resistor

Stackpole's RHC Series claims lowest heat rise in a 2512-size chip resistor

The RHC2512 from Stackpole is a 2W-rated 2512-size chip resistor with a lower heat rise compared to other high-power chip resistors currently available. Stackpole uses a novel part design, set of materials, and manufacturing processes to lower the self-heating of the part by at least 30°C. The RHC2512 is availa

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Date:

02/06/2014

AVX TES Series low ESR tantalum chip capacitors

AVX’s low ESR tantalum chip capacitors get ESA QPL approval

AVX, a leading manufacturer of passive components and interconnect solutions, announced that its high-reliability TES Series low ESR tantalum chip capacitors have received full European Space Agency (ESA) QPL (qualified part list) qualification approval in accordance with the European Space Components Coordination (E

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Date:

02/06/2014

TMJ S1gma Series SMD tantalum capacitors

AVX’s latest SMT tantalum capacitors tout high reliability and minimal DC leakage

AVX, a leading manufacturer of passive components and interconnect solutions, has introduced the TMJ S1gma Series of high-reliability SMD tantalum capacitors, which offer three levels of next-generation statistical screening and process control enhancement for applications that require both exceedingly high re

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Date:

02/04/2014