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Demanding More From Analog Takes Work - The design engineer and the vendor must have a ...


most recent messages 5/20/2013 12:29:03 AM eafpres @DaeJ--I think you are overstating the "problem" with thermocouples. For qualification testing in Automotive, if good/no good depends on better than 1 degree resolution then you are putting... blogs message boards chat Using ICs in the Land Beyond Their App-Notes Derek Koonce, Owner, DDK Interactive Consulting Services, 5/20/2013 Comment now Designing circuits is the fun part of engineering. And, as noted in a previous post, finding solutions to problems is what keeps an engineer employed. As an engineer, it is necessary to work with the parts available to meet design criteria. This sometimes necessitates using a part for a purpose for which it was not intended. Thermocouple Nodules, Cold Junctions & Integration Opportunities Dennis Feucht, Electronics Engineer, 5/17/2013 Comment now 6 comments When measurement instruments reach their specified performance limits, one comes to a gray zone separating reality from fantasy. Thanks to sensors, this zone is widening. Most recent post, eafpres, 5/20/2013 12:29:03 AM @DaeJ--I think you are overstating the "problem" with thermocouples. For qualification... When Are You Done With Verification? Brian Bailey, Independent Consultant, 5/17/2013 Comment now 2 comments In the everyday world that we live in, there is a common saying that says, "Measure twice, cut once". Clearly this is trying to stress the importance of checking things before you take action and that if you are sloppy with the measurement, then it can lead to expensive mistakes. Most recent post, Brian Bailey, 5/18/2013 1:04:04 PM I am not sure I understand the connection between outsourcing of manufacturing and... When the Going Gets Tough... Brian Bailey, Independent Consultant, 5/16/2013 Comment now 3 comments Moore's Law has been driving digital integration for a few decades, and it provides a circular reinforcement. Being able to create smaller devices means that more can be placed on a die. This provides added functionality, decreases costs per device, and makes demand for the end product larger. This spurs another round of integration and geometry reduction. Most recent post, Brian Bailey, 5/16/2013 9:29:25 PM That is very true. The EDA industry has been so concerned about timing and area... (Dis)Integrating Power Consumption, Counterintuitively Len Sherman, Senior Scientist, Maxim Integrated, 5/16/2013 Comment now 7 comments The present mobile era may be best characterized by its unrelenting pressure to reduce power consumption. Each generation of consumer electronics must offer more functionality while maintaining or extending runtime. Initially, efficiency improvements were the Holy Grail, at least from a power management viewpoint, but the process of engineering ... Most recent post, analoging , 5/17/2013 6:53:53 PM SiGe is implemented more for its high-frequency benefits due to the mobility enhancement... Crack Open One of These Books, Part 2 Brad Albing, Editor in Chief, 5/16/2013 Comment now 2 comments Following up on Part 1 of my look at some favorite engineering books -- which followed Bill Schweber's blog about cracking open a design book -- let's consider a few more that provided solid engineering information. Most recent post, Michael Dunn, 5/16/2013 9:04:24 PM Love the constant-current transformers. Are there details of how they work? Some... Prevent Your Next High-Flying Product Launch From Being Grounded Willie Chan, Sr. Product Marketing Engineer, Linear Technology, 5/16/2013 Comment now 1 Comment The widening gap between the 24V-to-28V intermediate bus commonly found in industrial, aerospace, and defense systems and the input supply voltages of modern digital processors presents design risk that could easily result in system failure, noxious smoke, or, even worse, a fire. Most recent post, eafpres, 5/16/2013 11:36:37 AM Hi Willie--interesting post and situation created by the evolution of voltage standards... The REAL Cost for a Custom IC Scott Elder, Senior Analog IC Design Consultant, 5/14/2013 Comment now 33 comments There have been lots of blogs and messages lately about designing a proprietary analog IC. I wrote a blog about doing it on the cheap for $3,000. Reid Wender posted a message about prototyping 200 parts using a reconfigurable IC for $10,000. Most recent post, Akbar Momin, 5/19/2013 6:57:48 AM Dear Scott, Regarding your point#3 concern, i would recomment to use Michael Perrott's... Everything’s Better After the First Explosion Barry Harvey, Intersil Fellow, 5/13/2013 Comment now 31 comments I'd like to take a few minutes to address the fear of power circuits and the great relief of successfully repairing the first screw-up of a project. Here is an example. Most recent post, WKetel, 5/19/2013 6:03:01 PM The strongest shock that I got was while pressing the reset buoon on a STD buss... Crack Open One of These Books, Part 1 Brad Albing, Editor in Chief, 5/13/2013 Comment now 24 comments After Bill Schweber wrote about cracking open a design book in Go Offline & Crack Open a Design Book, I looked through my bookshelf and came up with a few design books that had influenced me, although, interestingly, were more manufacturers' data and applications books. Most recent post, antedeluvian, 5/17/2013 8:47:40 AM Brad I have said this elsewhere (on the Connecting Edge, most recently)... How a Poorly Designed 20W Amplifier Can Destroy a Speaker System Brad Albing, Editor in Chief, 5/10/2013 Comment now 8 comments Even though we publish new blogs daily from your intrepid editor and from a number of well-known writers, sometimes it's good to have a look back at some of our well-received articles from the recent past. Here is one that discusses the consequences of driving a solid state amplifier too hard. With no provisions to limit output power gracefully, turning ... Most recent post, Sawdust123, 5/16/2013 9:47:16 AM It is fairly common misconception that the harmonics of a clipped waveform destroy... Next 5 blogs+ All blogs All blogs most commented 33 The REAL Cost for a Custom IC Scott Elder, Senior Analog IC Design Consultant, 5/14/2013 31 Everything’s Better After the First Explosion Barry Harvey, Intersil Fellow, 5/13/2013 24 Crack Open One of These Books, Part 1 Brad Albing, Editor in Chief, 5/13/2013 7 (Dis)Integrating Power Consumption, Counterintuitively Len Sherman, Senior Scientist, Maxim Integrated, 5/16/2013 6 Thermocouple Nodules, Cold Junctions & Integration Opportunities Dennis Feucht, Electronics Engineer, 5/17/2013 blog roll message boards chat 5/20/2013 12:29:03 AM Re: Temperature limits: @DaeJ--I think you are overstating the "problem" with thermocouples. For qualification testing in Automotive, if good/no good depends on better than 1 degree resolution then you are putting a product on the market at high risk. Most... eafpres on Thermocouple Nodules, Cold Junctions & Integration Opportunities 5/19/2013 6:03:01 PM Re: A fundamental goof, allright, a big one, too.: The strongest shock that I got was while pressing the reset buoon on a STD buss controller card rack. That happened because the disconnrct switch was directly above it on the panel, (thanks, John C.), and the hookup was tempoary, so it was... WKetel on Everything’s Better After the First Explosion 5/19/2013 5:40:41 PM Re: A fundamental goof, allright, a big one, too.: On a sort of related note, I once brushed my hand up against a 480VAC, 3-phase rectified DC bus (part of a welder) - so that was around 700VDC. Just a glancing touch, luckily. You haven't lived 'til you've bumped up against a 700VDC bus. And... Brad Albing on Everything’s Better After the First Explosion 5/19/2013 5:26:07 PM Re: higher speeds and higher integration push up noise: Juergen - don't blame Jonathan for that. Someone else along the way had a brain cramp and mistyped. Brad Albing on LVDS Is Dead? Long Live LVDS & JESD204B 5/19/2013 9:35:18 AM Re: Temperature limits: Auto get recall all vehicle on the earth, since testing related to temperature is incorrect by TC. Unfortunately, TCS is one of popular temperature sensors in the Auto Chamber Lab. Auto company might call manger who orders TCs and measurement... DaeJ on Thermocouple Nodules, Cold Junctions & Integration Opportunities 5/19/2013 6:57:48 AM Re: Oh, the i(c)rony: Dear Scott, Regarding your point#3 concern, i would recomment to use Michael Perrott's CppSim http://www.cppsim.com/index.html as front end tool. It includes all the front end for mixed-signal IC design. SUE2 for schematic entry, NGSPICE... Akbar Momin on The REAL Cost for a Custom IC 5/18/2013 6:45:20 PM Re: Temperature limits: "I am wondering how much finer wire provides the better performance in above application." The TC wire need not be special, or differ from what is presently used, though this might be a design detail to be investigated in regard to attachment... D Feucht on Thermocouple Nodules, Cold Junctions & Integration Opportunities 5/18/2013 6:39:25 PM Re: Temperature limits: The problem was addressed, albeit briefly, in the article: "One method for doing this is to take fixed lengths of TC wire -- long enough to be out of the heat ..." If the TC wire is extended beyond the region of measured temperature to a... D Feucht on Thermocouple Nodules, Cold Junctions & Integration Opportunities 5/18/2013 5:20:57 PM Re: Have a first hand experience: I am not sure high voltage circuit with transformer was tested it the company lab, if this has been happed in the company lab, engineer might report to manger for safety concern, unless this explosion is for any purpose. Secondly,... DaeJ on Everything’s Better After the First Explosion 5/18/2013 4:11:27 PM Re: A fundamental goof, allright, a big one, too.: WKetel although the flash-burn from plugging in a 3-phase plug that had an errant strand of copper was much more painful. That "bang" cleard all thre phases 30 amp fuses, and the noise was quite loud. Did you know that copper vapor is a much... antedeluvian on Everything’s Better After the First Explosion 5/18/2013 1:04:04 PM Re: Design centers : I am not sure I understand the connection between outsourcing of manufacturing and functional verification. There have been some companies who tried outsourcing verification but much of that has since been brought back. Brian Bailey on When Are You Done With Verification? 5/17/2013 7:50:34 PM Re: A fundamental goof, allright, a big one, too.: I have yet to get a serious DC shock, although I have had a few hot wire burns from yanking out wires with the insulation melting, when I knew that there was no fuse to stop the curent and letting the thing continue would have been VERY EXPANSIVE.... WKetel on Everything’s Better After the First Explosion Next 5 messages+ All messages All messages blog roll message boards chat 4/11/2013 4:14:10 PM Join us for a chat: Imparting knowledge sometimes lost in the past to our fellow engineers: So I found these awesome Current Sensors but I don't know how effective they are. Help! here's the link <a href="http://www.magnelab.com/products/Current-Voltage-Sensors/three-phase-ropect%C2%AE-ac-current-sensor-rogowski-coil-rcs-1800">rogowski... SGreenovich Newbie 1/16/2013 2:20:07 PM Join us for a chat: Imparting knowledge sometimes lost in the past to our fellow engineers: Good closing comment Steve. Thanks Steve and Bruce for joining the chat. Brad Albing Blogger 1/16/2013 2:16:59 PM Join us for a chat: Imparting knowledge sometimes lost in the past to our fellow engineers: Gotta run guys---I really would love to do this again! I'm off to a conference call to pick the brain of another expert for an upcoming article---Once we think we know everything and cannot learn anything new----we are lost! SteveTaranovich Newbie 1/16/2013 2:13:49 PM Join us for a chat: Imparting knowledge sometimes lost in the past to our fellow engineers: Farhood Moraveji, technical director at TI commented to me, "Kludge boxes were a necessity in that test equipment did not exist that could measure the performance of the IC. These boxes often used some clever measurement tricks, which would... SteveTaranovich Newbie 1/16/2013 2:09:46 PM Join us for a chat: Imparting knowledge sometimes lost in the past to our fellow engineers: Erroll Dietz said this about early IC designers, "Using design rules that they made up as they went along, these designers worked from transistor-kit parts, used copper-clad breadboards with sockets as design tools, and employed discrete resistors... SteveTaranovich Newbie 1/16/2013 2:07:26 PM Join us for a chat: Imparting knowledge sometimes lost in the past to our fellow engineers: Right---"Figuring things out" shows good engineering thinking---I like that approach from that blog SteveTaranovich Newbie 1/16/2013 2:03:41 PM Join us for a chat: Imparting knowledge sometimes lost in the past to our fellow engineers: You might be interested in this blog, back a few months... http://e2e.ti.com/blogs_/b/thesignal/archive/2012/09/24/interview-questions-memorable-times-on-both-sides.aspx Bruce Trump Newbie 1/16/2013 2:03:11 PM Join us for a chat: Imparting knowledge sometimes lost in the past to our fellow engineers: Experience and practice under the tutelage of a good mentor is critical SteveTaranovich Newbie 1/16/2013 2:02:33 PM Join us for a chat: Imparting knowledge sometimes lost in the past to our fellow engineers: It's difficult to teach an engineer to have an intuitive understanding. Brad Albing Blogger 1/16/2013 2:01:34 PM Join us for a chat: Imparting knowledge sometimes lost in the past to our fellow engineers: Synthesis ability comes from real experience and practice that they don't get at undergrad level. The genesis, I believe, is an intuitive understanding of how circuits work. Bruce Trump Newbie Next 5 chats+		flash poll All polls educational resources sponsored content by our sponsors Analog Latch, One-Shot Circuits Operate with Close to Zero Power Industrial Systems Need the Added Protection of Security ICs Intelligent Lighting Controller Measures Ambient Light and Tracks Time Map Colors of a CIE Plot and Color Temperature Using an RGB Color Sensor ISM Transmitter Has Constant Transmitter Power for Varying Supply Voltage Adding Autorestart Capability to the MAX16046 EEPROM-Programmable System Manager Signal Conditioning for a Sigma-Delta ADC in Industrial Multichannel Data Acquisition Systems information resources sponsored content by our sponsors 24-Bit Sigma-Delta ADC Reduces the Requirement for an Analog Front-End (AFE) for ECG/EKG Trade-Offs in Analog IC Performance, Or Challenges When You Integrate More Analog onto a Digital Design Simplify AISG Control Systems by Integrating the Hardware Discrete Transceiver All resources follow Planet Analog on Twitter like us on facebook our partners

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