Electrical/Electronics

IEC 60601-1-2 Edition 4: New Requirements for Medical EMC

Plan now to ensure your medical devices comply with new IEC 60601-1-2 EMC 4th Edition standard requirements by the December 2018 effective date. Since the development cycle can be 2-3 years, it is important to understand the new standard now when designing medical devices.

Posted in: White Papers, White Papers, Electronics, Instrumentation, Bio-Medical, Medical

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Krytar Case Study — Leading the Way in the Broadband Component and Testing Industry

Headquartered in Sunnyvale, California, Krytar Inc. provides the highest standard of broadband test & measurement components to the RF and microwave industry, supporting the development of all types of systems including radar and satellite. When choosing the right partner for RF and microwave circuit prototype and manufacture, Krytar turned to Sunstone Circuits. Here's why.

Posted in: White Papers, Electronics & Computers

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Die Attach Adhesives Impact Product Quality Well Beyond Manufacturing

Die attach adhesives serve a vital role in semi-conductor assembly, manufacturing and throughout the product life cycle. In this white paper, learn how they facilitate assembly and about the application process. Read why thin bond lines are so important for product life cycle. Bond strength is only one, albeit critical requirement for many applications; read about many other performance characteristics of epoxies and why they offer diverse solutions to meet critical application needs.

Posted in: White Papers, Electronics & Computers

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Ultra Low Thermal Resistant Adhesives for Electronic Applications

As advances in epoxy and silicone materials constantly evolve, manufacturers of advanced electronic systems will find that adhesives offer the ability to meet nearly any combination of requirements for thermal, environmental, and structural stability. As product manufacturers face greater challenges in assembling die, package, and other components into products able to cope with increasing heat loads, adhesives are particularly versatile for bonding, sealing and coating. Moreover, the use of filler materials in adhesives can help to fine tune the specific performance demands required to extend product life cycles and meet manufacturing requirements. Learn more about why and how ultra low thermally conductive adhesives are the preferred fastening approach in applications requiring careful thermal management.

Posted in: White Papers, Electronics & Computers

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Conductive Coatings Protect Circuitry from EM/RF and ESD

With the trend toward smaller and smaller electronic devices, unintentional EMI/RFI interference has become more of an issue. Shielding of these interferences is critical and coatings can be successfully applied as protection on the materials used. In this paper, the different sources of interference are explored, as well as how coatings can play a critical role in protecting these sensitive components and boards.

Posted in: White Papers, Electronics & Computers, RF & Microwave Electronics

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Electric Field Quantitative Measurement System and Method

This technology could be used for medical imaging, security applications, weather prediction, and nondestructive evaluation of composites and insulators.NASA Langley Research Center’s Electric Field Imaging (EFI) system is the only noncontact method capable of quantitatively measuring the magnitude and direction of electrostatic fields in near- and far-field applications. Based on low-cost, commercially available components, the EFI system uses measurement of very-low-current, human-safe electric fields to construct a three-dimensional image of objects and people based on their dielectric properties. This platform technology, originally developed for measurement of the efficacy of electrical shielding around cables, could be optimized for a variety of applications, including medical imaging, security and detection, weather and natural disaster prediction, and nondestructive evaluation of composites and insulators. The EFI system has the potential to offer a lower-cost, portable, and safer alternative to the imaging systems currently used in these applications.

Posted in: Briefs, Electronics & Computers

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Auto-Balancing Series-Stacked Input DC-DC Converter

This invention could enable practical, reliable, and efficient power conversion in high-voltage DC systems without power level limitation.ADC-DC converter that can operate from a high input voltage is needed for future high-power space applications. However, the selection of space-qualified, high-voltage transistors and filter capacitors for such a converter are very limited. The available high-voltage components have lower performance than lower-voltage components. One possible solution to this problem is connecting in series the inputs of multiple converters to lower the input voltage at the individual converter inputs. However, because of component tolerances, performance degradation, and transient events, this can result in an unbalanced voltage distribution throughout the various inputs. Excessive voltage on any of the stacked converters can damage components and cause a catastrophic failure. A circuit that could inherently balance the voltage between the inputs of multiple low-voltage DCDC converters would have better performance and reliability.

Posted in: Briefs, Electronics & Computers

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