HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
You must login to participate in this chat. Please login.

Thanks Rob & Carol

Iron

Thanks very good hand on lecture.

Iron

Hi, emergency led sign

Iron

traces and spaces are standard as you say, there are guidelines for various circuits, and some prototype houses will give guidance or minimum requirements ... later we can talk about good layout, design for manufacturing / design for assembly type issues -- I hope you will touch on that later as well

I think it's wonderful that MIT has Open CourseWare LINK -->>  http://ocw.mit.edu/index.htm and that we have an instructor from MIT here online too ... I loved the work done there by Winston and Horn ...

I thought you might have chosen a circuit to demonstrate PWM or multiplexing LED's to save power ...

Good comparison with other free PCB tools for hobby. I have experience with Expedition PCB and PADS from Mentor Graphics.

Rechargeable LED flashlight

Nothing specific as to what type of project I'm working on

Not working on one currently, have worked on a few in the past.

Iron

Not currently working on LED project -- that could change.

Iron

Is it possible to export part of any CAD software in PCB?

Iron

Thanks Carol, very interesting lecture.

Iron

I have no current LED project but I am interested in prototyping 

Iron

When I draw a circuit and translate it to PCB, is it possible to work out things on PCB?

Iron

Can I consider DesignSpark PCB as one of CAD packages?

Iron

Thank You & Good day, (night) Rod. R.

Iron

thank you - good info

Iron

Thanks so much for your great presentation today, Carol. I look forward to seeing everyone for the third presentation tomorrow -- Using PCB Layout Software: Custom Component Libraries.

Blogger

I hope everyone will get a chance to play with DesignSpark. I'll see you tomorrow as we delve into custom components!

Blogger

Thanks for the answer on CFD. See you tomorrow. Great Class!

Gold

Ultiboard is the pcb software, as vlad said.  NI is not cheap, $519 for single seat education version.

Blogger

I've played with Eagle in the past... now thinking about downloading the DesignSpark to play with it...

Iron

Just finished the audio... Thank you Carol!

Iron

multisim is a simulator but has the option of transferring the entire schematic to ultiboard where the pcb can be designed

Iron

MultiSim looks like a spice simulator. It's a differentbeast. It's for simulating behavior of the circuit.

Blogger

Thanks you for attending. Great to see so many people interested.

Blogger

Great Presentation,

Thanks

Iron

To the question about using CFD to do thermal model. I've done some and have used consultants who specialize in it.  Here's my take on the subject. If it's a straight forward application, just measure the temperatures with a thermocouple and extrapolate. If it's complex geometry you might want to model it. But what you get out of it depends on what you put in. You still have to prototype it and get some anchor points and verification for your thermal model. Sometimes the answers are about what you expect. Sometimes experience helps you know what to expect. There are some rules of thumbs for power supplies: efficiency, power/square inch, should guide you on whether and how big a heat sink you need. I believe Ron goes over these in his book Practical Design of Power Supplies.

Blogger

Now to go and get designspark

Iron

Thanks Carol, good presentation

Iron

There is a process to import Eagle libraries. Go to designspark.com and search for it.

Blogger

@Rob & @Carol - Thanks for a great presentation.  I am currently looking for a layout program to build PCBS and will try DesignShark.

Iron

@vlad - designshark or designspark (covered in this lecture)?

Iron

Cmeadows6959 asks:

 

This looks a lot like MULTISIM.  Does it have tests instruments and simulations also???

 

Blogger

Thanks Carol and Rob.

Iron

Can't speak to how Multisim compares to Designspar. But National Instruments is certainly top notch.

Blogger

 

Is Designshark better than national instruments Multisim and ultiboard

 

Iron

@Rob - listening to the recorded lecture now (late for the live one). Would like to thank Carol before she leaves for the day.

Iron

Hi Carol, sorry i missed your lecture. I do not have the audio working.

 

Iron

I finished semester one. Do I get some kind of certificate ???

Is Design Spark easy to use to do layout of MCU controllers and other high pin count ICs?

They seem to have the features needed for those applications. I haven't used it for that.

Blogger

Stagners asks:

 

Will DesignSpark work with other electronics parts distrubuters such as Mouser?

 

Blogger

Today's lesture is now archived and ready for playback.

Blogger

DesignSpark has an autorouter. Under Tools menu, Autorout Nets.

I don't generally use it for power supplies. EMI considerations for component placement and packing it into a small space are usually my two biggest drivers.

Blogger

Is Design Spark easy to use to do layout of MCU controllers and other high pin count ICs?

Iron

I am using national instruments Multisim and ultiboard

do you recommend designshark instead?

 

Iron

Can other (Eagle) libraries be imported?

Iron

That's right, it isn't too much work for these boards to just copy the components and rename them to what you can source easily.

Blogger

oops... missed the live lecture today...

Iron

Zwilrich asks:

 

Does DesignSpark do autorouting?

 

Blogger

Drw36 asks:

 

Looks like you'd make it work just like Carol made it work for Digikey by adding the info when creating your parts. The included libraries appear to be built with RS components. I believe that is a UK distributor. Perhaps Carol can clear this up.

 

Blogger

RobPinar asks:

 

I'm working with Eagle. Do you recomend DesignSpark better than Eagle?

 

Blogger

Can you comment on the use of CFD/FE on thermal desing? Many people are using it, but many companies have deep pockets. Is it necessary or even useful?

Gold

If you already know how to use Eagle, and are not running into board size restrictions, then it's a fine package.

Blogger

Garysxt asks:

 

Carol, do you have suggestions for ensuring the schematic pins match up correctly with the PCB pads? I have seen a lot of boards messed up because things like the transistor pins don't match, especially with SOT and similar packages.

 

Blogger

Przemek asks:

 

Can you comment on other PCB/design packages, say KiCAD?

 

Blogger

Don't kave any experience with KICAD.

Blogger

schematic pins match up correctly with the PCB pads

Great question. That is something we'll cover tomorrow. You basically have to review the components in the component editor.

 

Blogger

thanks Carol and Rob. See all tomorrow.

Iron

THANKS FOR THE INFO, Carol. See you tomorrow.

Carol will take your questions now.

Blogger

Good presentation, thank you. Look forward to tomorrow.

Iron

Can you comment on other PCB/design packages, say KiCAD?

 

Gold

Carol, do you have suggestions for ensuring the schematic pins match up correctly with the PCB pads? I have seen a lot of boards messed up because things like the transistor pins don't match, especially with SOT and similar packages.

Iron

I'm working with Eagle. Do you recomend DesignSpark better than Eagle?

Iron

Thanks so much Carol!!

Iron

Thanks for another great presentation today, Carol.

Iron

Bill21 - a quick google for designspark took me to the website.

Iron

Thanks Carol very informative.

@stagners: Looks like you'd make it work just like Carol made it work for Digikey by adding the info when creating your parts. The included libraries appear to be built with RS components. I believe that is a UK distributor. Perhaps Carol can clear this up.

Iron

Does DesignSpark do autorouting?

Iron

i see it mentioned in foil 3 on Day 1 but no location...just DigiKey?

 

Iron

@stagners - You might have to check on the Mouser, etc website to see if tey have the same part numbers etc.

Iron

@Bill21, have a look at the first few pages from yesterday's session notes. it lists 3 software packages.

Iron

Bill21 -- yesterday's program is archived. You should be able to play it and look at the PPT slides.

Blogger

Will DesignSpark work with other electronics parts distrubuters such as Mouser?

Iron

25 thou is typical general purpose trace width.

Iron

i missed first 10 mins yesterday due to browser/login issues....when was the free sw discussed?  i didn't see this in the Day 1 notes....

Iron

I have audio , but not video!!!

 

Iron

@Rob, Yup including 7-segment, Near-IR, high-brites, Nat-Semi ones with regulators built-in.

Iron

First circuit on Designspark

Iron

@cmeadows6959, I downloaded and activated DesignSpark yesterday. The latest version, 3 has an interface to common simulators. the website describes it better.

Iron

Have used LEDs as indicators and 7 segment LED for displaying numbers for years. Only done a couple of small projects using constant current drive.

Iron

sorry not electrolitic its ceramic

Iron

We're now on slide 14.

Blogger

This looks a lot like MULTISIM.  Does it have tests instruments and simulations also???

 

this is an Electrolitic,

Don't you want to see + & -?

Iron

We're now on slide 13.

Blogger

Designed infrared LED emitter

Iron

For our high-intensity UV LEDs I usually use BuckPuck constant current drivers.

Iron

Charlieplexing is interesting for driving an array of LEDS.

Iron

We're now on slide 12.

Blogger

@Rob: Never used any LED systems, just discrete LEDs for display

Iron

have used and designed  LED displays, not for lighting though

Iron

We're now on slide 11.

Blogger

Have most of you used LED systems before?

Blogger

Should say display values in GUI

Iron

We're now on slide 10.

Blogger

using chrome.  Works fine.

Iron

We're now on slide nine.

Blogger

@asut - For firefox you'll need to downgrade flash to 11.3.300.271 or earlier. Find it here

http://helpx.adobe.com/flash-player/kb/archived-flash-player-versions.html#main_Archived_versions

Iron

We're now on slide eight.

Blogger

I am designing a luminaire for the first time.

 

Gold

We're now on slide six.

Blogger

Does designspark do 3D components.

For some reason, it's the updated Flash that is having problems with audio. The IT folks are working on it. Using the Chrome browser seems to solve the problem.

Blogger

Just installed updated flash and restarted firefox still no luck

Iron

We're now on slide 5.

Blogger

That could just be a 150k - since it just sets the bottom range of a trimpot.

Iron

Those using the Chrome browser seem to be OK on audio.

Blogger

This will be available on archive soon after we end this program, shortly after 3:00 pm Eastern.

Blogger

I have audio problem too.

 

Iron

using chrome.  Works fine.

Platinum

no sound at all after intro???

Using Chrome today! I have audio! 

 

Iron

Try using the Chrome browser to solve the audio problem.

Blogger

yes, audio problems.  When will this be avaialable in archive?

Iron

@Rob, finally downgraded Flash and now Firefox works.

Iron

We are working on a project that display message 7 lines and 100 charactars. 

Played with it yesterday and gave up at finding a temperature sensor

Iron

Anyone having audio problems today?

Blogger

Only current LED project is a hobby application. Have done commercial LED applications.

Iron

Answering the question, i´m not working in an LED project. This lecture will be useful for future projects.

Iron

not working on any embedded project, involved in another software project

Iron

We're now on slide three.

Blogger

No current LED project, just a more general interest in prototyping.

Iron

We're now on slide two.

 

Blogger

Working on a new lamp design.

Project: LED illuminator

Iron

Medical device application

Iron

Currently, I'm not working on any projects.

Hello from Albuquerque.

Iron

@Kelleyrn, I miss the fall leaves from the est. There's nothing like here in Northern Alberta.

Iron

Good afternoon Carol, looking forward to todays session.

Iron

@kellyern  I'll anser your question about CFD for thermal in half an hour when I come back to do the chat.

Blogger

Led the display begin !

Iron

Hello all from the beautiful state of Maryland. Leaves just starting to turn.

Gold

I am pleased to meet all of you from al of north America

Cute LED art!  Welcome back, everyone!

 

Blogger

GOod Evening everyone!

Iron

Hi from Northern Minnesota

Iron

Hi From Aurora - North of Toronto!

Iron

Greetings from beautiful Portland Oregon

Iron

Hi all

         .----.
        | .-.  |
        |T  | |
       [_|__|_]
          |  |
          |  |
          |  |


Iron
Hello from Mesquite NV Max
Iron

for audio test, maybe listen to an archived session. it should be a good test for your system.

Iron

Good afternoon folks.

Iron

How can we try our audio before the lecture starts?

 

Hello from Kinda Electronics, Brockville, Ontario, Canada

good afternoon, everyone

Iron

Hell from sunny Miami!!!!!

Hello from Silicon Valley, CA. It's 60°F now and will peak to 80°F.

Iron

Hello from Ottawa Ontario

 

Iron

9:30 AM Morning from North Pole, Alaska (Fairbanks Area)

I never did get my starbucks coffee from this summers lecture.

Rodney B. Rutherford (Rod. R.)

Iron

Ready and Listening

 

Iron

Good morning from Albuquerque!

Blogger

Good morning from California!

Iron

If you had audio issues yesterday, we recommend you launch the CEC using the Chrome browser. 

Blogger

Carol, this is slightly off topic, but do you think it necessary to use CFD/FE to perform thermal simulation on LED designs? Thanks.

Gold

Thanks,  I'll double check before today's show.

Platinum

If you have trouble hearing the audio, one of our attendees noted that it's not a browser problem, per se, it's an Adobe Flash version problem. -- If you've upgraded to Flash 11.4, you'll have problems.  Right click on the Flash player to check its version number.  Browsers still using Flash 11.3 are working for this webinar; those at 11.4 are not working.

 

We're working to resolve this problem.

Blogger

-Be sure to click 'Today's Slide Deck' under Special Educational Materials above right to download the PowerPoint for today's session.

Blogger

-The streaming audio player will appear on this web page when the show starts at 2pm eastern today. Note however that some companies block live audio streams. If when the show starts you don't hear any audio, try refreshing your browser.

Blogger

-Please join our Digi-Key Continuing Education Center LinkedIn Group at http://linkd.in/yoNGeY

Blogger

horace,  You should be able to download now.

Iron

The slide deck is not available. Any reason?

Iron


Partner Zone
Latest Analysis
Bigger than an iPhone 6 Plus, but smaller than an iPad Air 2. What am I? If you answered iPad Mini 3, you are correct.
Here are 10 robots that are designed to work effectively and safely with humans.
The data breaches at Target, Home Depot, and elsewhere have inadvertently highlighted a separate and unexpected problem: bad user interface design.
What if you could recharge your mobile device using the movements you make all day? That’s the promise of Ampy, a new device by a Chicago-based startup of the same name.
Peter Riendeau of Melexis shows how a time-of-flight sensor can be used for gesture recognition in a vehicle.
More:Blogs|News
Design News Webinar Series
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
9/25/2014 11:00 a.m. California / 2:00 p.m. New York
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 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.
Nov 3 - 7, Engineering Principles behind Advanced User Interface Technologies
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


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.
Next Class: 10/30 11:00 AM
Sponsored by Stratasys
Next Class: 10/30 2:00 PM
Sponsored by Gates Corporation
Next Class: 11/11-11/13 2:00 PM
Sponsored by Littelfuse
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service