Statistical analysis is needed because data always have some degree of uncertainty; a value that we determine from a single measurement, or even set of measurements, is not necessarily going to tell us exactly what value we will determine with additional measurements. Statistical analysis uses the mathematics of probability to create tools that we can use to deal with … [Read more...]
New DoE Efficiency Standard for Pumps
(August 8, 2016) The minimum efficiency standards for general-purpose, three-phase motors have been raised. “The U.S. Department of Energy (DoE) recently released new efficiency standards for commercial and industrial pumps that are based on efficiency levels negotiated by manufacturers, efficiency advocates, and other stakeholders,” reported MachineDesign.com, “In addition to … [Read more...]
New Thermal Interface Protocol Standard for 3D-ICs
The Silicon Integration Initiative (Si2) has announced the release of a new chip thermal interface protocol (CTIP) standard for three-dimensional integrated circuits (3D-IC) under the auspices of the Open3D Technical Advisory Board (TAB). The Open3D TAB is chartered to define open standards for design data formats and interfaces to enable interoperable 2.5D and 3D design … [Read more...]
Testing of Power LEDs: The Latest Thermal Testing Standards from JEDEC
András Poppe, Ph.D.; Mentor Graphics MAD MicReD Unit The electrical, thermal and optical parameters determining light emitting didoes (LEDs) operation are in a strong, mutual dependence; without knowledge about the parameters in one of these domains the other characteristics cannot be measured correctly. The reliability, useful operating life time and luminous flux are … [Read more...]
IEC 62610-4 ed1.0: Cooling Performance Tests for Water-Supplied Heat Exchangers in Electronic Cabinets
From the International Electrotechnical Commission Webstore: “IEC 62610-4:2013 specifies the test setup and test parameters for water-supplied heat exchangers within single electronic cabinet configurations. The tests are focused on cabinets for the installation of high power dissipation electronic equipment. The cabinets concerned are from the IEC 60297 (19 in) and IEC 60917 … [Read more...]
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