HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comment
JSP
User Rank
Iron
Re: Part II: Getting Ready for High Brightness LEDs & the Light-Enabled View of Tomorrow
JSP   5/8/2012 1:57:17 PM
NO RATINGS
WRT Slide 10 yesterday' slide deck,  and the connection to 120VAC, I note that bridge rectifiers can be very inefficient and even at 70mA or so, the theoretical peak voltage of 168VDC rapidly drops to 145VDC or so even under this moderate load. At 100mA it is closer to 135VDC.

BTW, since the diodes have a turn-on knee, a bleed resistor is highly recommended across the DC capacitor.



Partner Zone
Latest Analysis
SpaceX CEO Elon Musk has unveiled the company's plans for a Interplanetary Transport System that would make it possible to create a self-sustaining city on Mars.
Two studies by leading companies show that energy plants are bullish on deploying IoT. They’re using connectivity for planning, productivity gains, and safety.
Proto Labs, known for its super-fast-turn prototyping and low-volume production services with multiple materials and processes, has added another service to its repertoire: rapid overmolding.
Technology has proven over and over again to be tremendously empowering, to individuals and organizations alike. Misuse that power, however, and you might find yourself in big trouble.
Steadfast in its belief that diesel engines are right for the times, General Motors is expanding US availability of the compression-ignited technology in Chevrolet cars and light trucks.
More:Blogs|News
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9 | 10


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.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service