HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
RyanJohnn
User Rank
Iron
Helpful
RyanJohnn   5/17/2013 7:36:48 AM
NO RATINGS
It would definitely helpful and giveing great illustration.thanks

Cabling systems Virginia Cable removal Service

tekochip
User Rank
Platinum
Re: Excellent!
tekochip   4/19/2013 9:23:44 AM
NO RATINGS
I agree, you're a well-rounded engineer capable of solving problems with simple solutions even when they are outside of your discipline. I wish you worked for me, of course, we don't allow smoking in our building.


adamsmith11
User Rank
Iron
Excellent!
adamsmith11   4/19/2013 3:32:24 AM
NO RATINGS
excellent approach. will help in making own.thanks

phone repair richmond va

OhmsLaw
User Rank
Gold
Re: The Case of the Way-Too-Hot Power Supply Unit
OhmsLaw   9/7/2011 11:48:41 PM
If you can give me a rating. TY

Anthony Stewart

EE since 1975.

Greg Stirling
User Rank
Platinum
The Case of the Way-Too-Hot Power Supply Unit
Greg Stirling   9/7/2011 5:46:57 PM
NO RATINGS
Excellent work Rob.  Delivering 1000 units a month sounds challenging enough. This thermal problem benefitted from the application of aerodynamics.  And a clever cost effective design to follow.  Seems as though being multi-disciplinary is an asset to many machine designs...

William K.
User Rank
Platinum
Power supply cooling: the turbulent solution
William K.   9/7/2011 4:01:41 PM
Brilliant engineering indeed! The problem with laminar flow cooling is that there is always a sttagnation zone covering all the fixed surfaces, and the velocity gradient rising as you move away from those surfaces. Finding the cost-effective means of getting turbulent flow was the engineering end of the solution. Good job indeed.

OhmsLaw
User Rank
Gold
Re: Great Project
OhmsLaw   9/7/2011 4:00:10 PM
I took some photo's of the only unit I had.. My original Prototype which was prior to the design completion of the said thermal solution and Origami cables.  I hope this illustrates the point.

Basically I prevented the air from flowing over top the PSU which had a 1/4" gap or so by blocking that with a plastic cover and created more turbulence with a front opening that also increased the linear air velocity which significantly reduces hot spot temperature rise inside the power supply (PSU). In this case form Lambda.   THis prototype was built 4 weeks after a paper napkin design spec and was later finished 3 weeks later and hand delivered to AVAYA in Denver.

http://db.tt/YASRI5s  (< PDF with images )

dan
User Rank
Iron
Great Project
dan   9/7/2011 12:05:13 PM
NO RATINGS
Well explained and engineered solution.  Just as a suggestion pictures of your project will make it more interesting

Alexander Wolfe
User Rank
Blogger
Well done
Alexander Wolfe   9/6/2011 3:17:32 PM
NO RATINGS
A well described and thought out solution. Sorta like the inverse of putting winglets on the edge of modern jetliners.



Partner Zone
Latest Analysis
(Video) NASA's Modular Robotic Vehicle (MRV) is an EV inspired by manned rovers used for space exploration.
Comedian John Oliver recently did a segment on patent trolls, offering a hiliarious take on a serious issue plaguing US industries.
United Launch Alliance will fly 3D-printed flight hardeware parts on its rockets starting next year with the Atlas V. The company's Vulcan next-gen launch vehicle will have more than 100 production parts made with 3D printing. The main driver? Parts consolidation and 57% lower production costs.
The new small-form-factor EZ-BLE PRoC (Programmable Radio on Chip) module is a derivative of the existing PRoC BLE Programmable Radio-on-Chip solution. The EZ-BLE PRoC module integrates the programmability and ARM Cortex-M0 core of the PRoC BLE, two crystals, an onboard chip antenna, a metal shield, and passive components.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
More:Blogs|News
Design News Webinar Series
3/31/2015 11:00 a.m. California / 2:00 p.m. New York
2/25/2015 11:00 a.m. California / 2:00 p.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
5/7/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
May 4 - 8, Designing Low Power Systems using Battery and Energy Harvesting Energy Sources
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Last Archived Class
Sponsored by Proto Labs
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service