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seaEE
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re: Blowing things up, and other reasons I love my job
seaEE   8/25/2012 2:01:10 AM
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Sylvie, I enjoyed your video as it brought back some memories of a visit I made to Littelfuse not long after embarking on my engineering career. I was selected to join some other engineers to visit Littelfuse at their Des Plaines facility. I had never been to Chicago, so that, itself, was an adventure. I remember them telling us about the generator they had at their facility that was used to create the power required for their fuse testing, and I remember them mentioning how long it took the generator to get up to speed. I remember the giant copper bus bars they had for carrying the current. Our product was place on a table and hooked up to the high voltage source, and run through various test. We watched the test from a viewing/control room, separated from the test room by a window several inches thick. I remember one explosion occurring and instinctively ducking! The folks at Littelfuse were great hosts, and I learned a lot about fuses--terms like "closing angle" and I**2t, and how fuse performs differently under DC and AC conditions, and how a little inductance in the circuit can affect the fusing action. There is a lot of science behind what is seemingly a simple component, and every day they are protecting us from harm. I also caught the train into downtown Chicago, and did some touristy things like visiting the Sears Tower. That was nice too. All in all it was a great trip and a neat learning experience.

walken1
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re: Blowing things up, and other reasons I love my job
walken1   8/24/2012 7:03:29 PM
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LOL - I think Chipmonk probably didn't have his cup of coffee that morning. =)

SylvieBarak
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re: Blowing things up, and other reasons I love my job
SylvieBarak   8/22/2012 9:58:51 PM
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really? That's why you became an engineer? Sounds like an interesting decision path....

chipmonk0
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re: Blowing things up, and other reasons I love my job
chipmonk0   8/22/2012 4:46:44 PM
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And what made you become an engineer to begin with? to avoid unqualified / lazy journalists ( hacks ) who shoot their mouth to cover their ignorance of the subject matter



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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