White Papers

Advancements in High-Power Diode Laser Stacks for Defense Applications

August 1, 2012

This paper reports on the latest advancements in high-power diode laser stacks, which deliver the most compact footprint, power scalability and highest power/bar of any diode laser package. Electro-optical (EO) data on water-cooled (micro-channel) stacks with wavelengths ranging from 7xx nm to 9xx nm and power levels of up to 5.8kW, delivered @ 200W/bar, CW mode, and power-conversion efficiency of 60%, with both-axis collimation will be presented. Also, presented is E-O data on a compact, conductively cooled, hard-soldered, stack package based on conventional CuW and AlN materials, delivering average power/bar 15W operating up to 25% duty cycle, 10ms pulses @ 45C. Results from a 300W, 200mm core/0.22NA fiber coupled package that meets the critical kg/kW metric for directed energy systems will be detailed. These devices can be used as pump-sources for diode-pumped alkali lasers (DPALs), for more traditional DPSS lasers which are power/brightness scaled for directed energy weapons applications, as conductively-cooled arrays for illuminators and as diode pump sources for high brightness fiber lasers.

Sponsored by:

Space Qualified, Radiation Tolerant Point-Of-Load Converters Combine High Efficiency and Electrical Performances in a Small Form Factor

July 31, 2012

3D Plus Radiation Tolerant Point-Of-Load Converters combine high efficiency and performance in small form factor, high reliability 14 pin gull wing SMD packaging for Space and harsh thermal/mechanical power applications.

Operating from a 5V power source 3D Plus PoL converters provide an adjustable output voltage from 1.22V to 4V with very high efficiency. A high speed control loop keeps the output voltage within regulation under high transient load swings commonly found in high speed ASICs, FPGAs and Memory devices.

The POL Converter is fully protected against output overload, input under-voltage and internal overheating. The external ON/OFF command and Soft Start function enable any power supply ON/OFF sequencing. Input and output EMC filters are integrated to simplify module implementation reducing layout issues.

3D Plus POL Converters are ideally suited for fast and low voltage digital electronics (FPGAs, SDRAM, DDR and DDR2 Memories) and in a variety of distributed power system designs.

Sponsored by:

Embedded High Assurance Computing Using The Freescale™ Trust Architecture

July 18, 2012

It is becoming evident that embedded computing solutions used in mil/aero applications will need to provide high assurance computing in order to ensure overall mission safety and safeguard the integrity, confidentiality and security of the data within and between systems.

This paper discusses the Freescale™ Trust Architecture approach.

Prognostics Health Management Technology

July 18, 2012

This paper presents a mature high Technology Readiness Level (TRL) diagnostic and prognostic capability that is ready to be deployed to address vehicle health management and operational readiness.

Simulating High-Speed Serial Channels With IBIS-AMI Models

July 18, 2012

This paper reviews some of the benefits and limitations of using IBIS models and introduces the new AMI extensions to the latest IBIS version 5.0 specification. Additionally, it illustrates how to perform several simulations of a typical backplane system using the Advanced Design System 2011 (ADS2011) toolset.

Enhanced fiber coupled laser power and brightness for defense applications through tailored diode and thermal design

June 6, 2012

Advances in both diode laser design and packaging technology, particularly thermal management, are needed to enhance the brightness of fiber coupled diode lasers while maintaining the small size and light weight required for defense applications. The principles of design for high efficiency fiber coupling are briefly covered. Examples are provided of fielded and demonstrated 100 and 200 micron diameter fiber coupled packages ranging in output from a few hundred to kW-class units in fibers, to include sub-kg/kW capabilities.

Sponsored by:

OpenVPX System Bandwidth

May 7, 2012

This paper compares the bandwidth available to two common types of dataflow for systems based on the VITA 65 CEN16 central switched topology, using three different fabrics – Serial RapidIO (SRIO), 10 Gigabit Ethernet (10GbE), and Double Data Rate InfiniBand (DDR IB).

Sponsored by:

Navigating the Embedded Security Landscape

April 24, 2012

The landscape of embedded security technologies is vast and complex. Not only does security mean significantly different things to different people, but countless variations of security technologies also exist. “Navigating the Embedded Security Landscape” by Logic PD’s Mark Benson discusses these variations and presents questions that can help focus what security means to you and your product.

Topics include:

• Embedded security end-applications

• Techniques for achieving appropriate levels of security in embedded systems

• A security taxonomy for categorizing embedded security technologies

• Summary of security technologies that Logic PD offers

• Product development process implications when security is a primary concern

• A list of questions to consider to help narrow in and navigate the complicated embedded security landscape

Sponsored by:

Vetronics Architectures Emerge to Facilitate Network-Enabled Operations

March 6, 2012

Battlefield communications capabilities have emerged as a top military priority. As a result, vehicle electronics (often combined as “Vetronics”) architectures are evolving to ensure that military assets can effectively serve as part of a holistic communications network. Our new white paper, Vetronics Architectures Emerge to Facilitate Network-Enabled Operations, reviews the genesis and implementation of the NEO paradigm, and explores how Vetronics architectures are changing communications among virtually all battlefield assets.

Sponsored by:

Advanced Thermal Management Solutions Cover Broad Mil-Aero Requirements

February 29, 2012

Survivability is critical, as sophisticated features are only as good as their ability to operate without fail. Increasingly complex military systems are driving increased challenges in integrating effective thermal management methodologies. As designers continue to push the envelope with increased functionality, new thermal management options will continue to evolve to satisfy next-generation application requirements.

Sponsored by:

Power-On Built-In Test Solution for Kontron VPX and VME Single Board Computers

February 29, 2012

Kontron intelligent Power-on Built-in Test (PBIT) solutions improve the reliability, safety and security of your mission critical installations. Kontron PBIT provides a modular and scalable set of uniform test routines to assess the health status and configuration for both boards and complete systems. The SYSTEM wide “capture” concept offers an innovative method to PBIT, so far unmatched in the Embedded SBC world.

Sponsored by:

Interoperability Considerations Between Different Host FMC and FMC Mezzanine Vendors

February 2, 2012

In the same way as one might strip out unnecessary weight in a car aimed for racing, the FMC is a performance solution that strips away unnecessary generic interfaces for direct FPGA driven I/O. But that requires knowledge to achieve the desired performance and to ensure the host and FMC module will work well together. This paper outlines some of the considerations in order to assess and the ensure that the host and module will integrate.

A comparison of OpenVPX™ System Bandwidth between Serial RapidIO® and 10 Gigabit Ethernet

February 2, 2012

The VITA 65 (aka OpenVPX) specification has introduced a number of standardized backplane topologies. The major addition brought by VITA 65 is the standardization of systems that employ one or more centralized switch cards. For systems based on Ethernet, a central switch is the norm. For Serial RapidIO (SRIO), VITA 65 adds central switched architectures to the list of possible topologies that includes switch-less mesh implementations.

A Comparison of MPEG4 (H.264) and JPEG2000 Video Compression and Decompression Algorithms

February 2, 2012

In the past decade digital video recording and distribution has been made much more viable by the introduction of new video compression and decompression techniques. Analog video applications have traditionally typically needed large investments in infrastructure to be able to provide any useful recording and distribution functionality (even at very low channel counts), even with the older generation of standard definition (SD) PAL/NTSC video.

Cooling Solutions for Mission-Critical Electronics

December 29, 2011

Discussion of four options for cooling electronic/electrical equipment housed in enclosures and transit cases. These options include thermoelectric air conditioners, compressor-based AC, vortex coolers and air-to-air heat exchangers. Each cooling method is explained and the advantages of thermoelectric air conditioners are examined as compared to the other cooling methods.

Sponsored by:

Cooling Systems for Electronic Enclosures

December 22, 2011

Discussion of four options for cooling electronic/electrical equipment housed in enclosures and transit cases. These options include thermoelectric air conditioners, compressor-based AC, vortex coolers and air-to-air heat exchangers. Each cooling method is explained and the advantages of thermoelectric air conditioners are examined as compared to the other cooling methods.

Component Sustainability Assessment

July 29, 2011

Contained within our publication, ESOM SF – 2.0 is our step- by- step solution to proactively managing the program thru its life cycle.  The framework also provides an important tool for ensuring consistency of approach for all obsolescence responses on a project and for communicating both within the company and with end customers.  This tool was created as document to be used at the program management level.  

Forward Risk Costing for Obsolescence Budgeting

July 15, 2011

Calculating the cost of an obsolete component goes beyond the component purchase cost at the LOT buy. The LOT buy consolidates into a single purchase many years’ worth of components and, as such, there is a considerable required expenditure to finance components that will be purchased today but not used for 5 to 7 years.   Do you have this cost included in your program budget?  www.ch1group.com

Critical Elements for Long Term Secure Storage of Obsolete Electronic Components

June 15, 2011
Electronic components are stored all over the world for use in all manner of electronic products and systems. Many of these components are relatively simple and robust products that can be stored with only passing regard to environmental control and quality processes. These component types- passive, low function active or electromechanical devices-  are not the subject of specialized long term storage and care. The storage of simpler components, as long as reasonable ESD control is exercised and severe environments are avoided, does not require specialized procedures. Unfortunately, many electronic system manufacturers treat all components the same when considering long term storage and usage. 

Electronic Systems Obsolescence Management (ESOM SF-2.0)

June 1, 2011
How much will that EOL event cost you?
 
Diminishing Manufacturing Sources and Material Shortages (DMSMS) teams are consistently under pressure to be proactive in managing obsolescence.   The reality is that due to the lack of planning for obsolescence,  most  End of Life issues are dealt with in a very reactive way, costing the program both customer service and profit losses.  In this series we will reveal to the reader the Channel One Electronic Systems Obsolescence Management framework that can positively impact your program goals.  

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Mil & Aero Magazine

April 2014
Volume 25, Issue 4
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