The new R2 Series of heat sinks from Ohmite combines thermal performance with the attachment mechanism of the popular C Series. This heat sink is capable of attaching either a TO-220 or a TO-247 component and is offered in both degreased and black anodized finishes. The convenient camming clip eliminates the need for mounting holes and screws. By eliminating the need for a … [Read more...]
Archives for 2012
GM to Stop Chevy Volt Battery Coolant Fires
General Motors is going to modify its Chevrolet Volt plug-in car to eliminate the possibility that its batteries can catch on fire hours or days after a serious side-impact crash. It turns out that battery coolant could leak on an electronic board, causing the fire. The leaks were discovered in tests in which a Volt was rotated until it was inverted. Only a small amount of … [Read more...]
Nanomaterials Doped Polymer Nanowires Synthesized by Pulsed Laser Irradiation
International Center for Materials Nanoarchitectonics (MANA) has succeeded in synthesizing nanomaterials doped polymer nanowires by a pulsed laser irradiation. The polymer nanowires grew perpendicular to the surface of a source film that included the nanomaterials and dye molecules as a photoabsorber. The technique is one of the solutions for fabricating of molecular devices … [Read more...]
Emails, more Emails and Jeff Bridges
It's estimated that, from a figure of 0.4% in 1995, now about 30% of the world's population are 'internet users'. Not sure exactly what being a 'user' entails; looking at a web page? clicking a link? sending an email? Probably the latter considering how many I receive. The Romans used little wax or wooden tablets, the Victorians introduced a penny-post system, today we command … [Read more...]
LEDs; The future's bright and hot.
LED based lighting is now a very hot topic (believe me, in electronic thermal management circles that used to be funny, the first few times). Control of packaged IC junction temperatures will always have a bearing on reliability but for LEDs thermal also effects functional performance in terms of brightness and colour. The hotter they get, the dimmer they appear. A particular … [Read more...]
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