Breaking News
Comments
Oldest First | Newest First | Threaded View
Page 1 / 3   >   >>
David Ashton
User Rank
Blogger
Natty devices...
David Ashton   9/9/2013 7:40:27 PM
NO RATINGS
Never heard aabout these before, thanks Aubrey.  I can think of a few uses for them apart from the intended automotive ones.

antedeluvian
User Rank
Blogger
Re: Natty devices...
antedeluvian   9/9/2013 8:16:31 PM
NO RATINGS
Hi David

Aside from standard I/O type stuff, we have used the IR part as a form of peak current shutoff on a power supply using the current mirror to drive a comparator.

David Ashton
User Rank
Blogger
Re: Natty devices...
David Ashton   9/10/2013 5:21:37 AM
NO RATINGS
Thanks, Aubrey.  I was thinking of using it on an analogue variable power supply, before the main pass transistor.  Apart from being able to switch the output off electronically, you could get a ground-referenced voltage proportional to output current - very useful for measuring output current using a standard DVM module - which on a variable PSU is otherwise not easy..  Looking at the specs for your IR3314, I think it would work  ok.  I'll look at the others as well.  Are these things expensive?

antedeluvian
User Rank
Blogger
Re: Natty devices...
antedeluvian   9/10/2013 8:48:48 AM
NO RATINGS
David

 Are these things expensive?

This is an incredibly complex question. What is a good price for me is really expensive for someone designing for the mass market. Before I overwax philosophical though, it seems to me you are only interested in a single unit, so I will only state the price from Digikey for the automotive version AUIR3314S is C$4.81. (C$1 is approx US$1.) Apparently it is still available in a TO220 pack, if you want ease of connection although you may struggle to find it in that format although I see Digikey have 6 at C$6.95 at the moment and Mouser have it in abundance.

Max The Magnificent
User Rank
Blogger
Check out the ADVANCED SENSE Guide
Max The Magnificent   9/10/2013 10:47:13 AM
NO RATINGS
Speaking of high-side power switches with protection and diagnostic functions, have you read Infineon's ADVANCED SENSE Calibration and Benefits guide (http://tinyurl.com/ADVANCED-SENSE-1-0)?

As an aside... I happen to know that the guys who wrote this little rascal are incredibly clever and handsome and witty ... the words all appear to have been hand-picked at the crack of dawn while the morning dew is still glistening on them, and it goes without saying that the quality of the diagrams is fantastic...

antedeluvian
User Rank
Blogger
Re: Check out the ADVANCED SENSE Guide
antedeluvian   9/10/2013 10:59:34 AM
NO RATINGS
Max

the words all appear to have been hand-picked at the crack of dawn while the morning dew is still glistening on them,

These are the exact same words that I saw on an old recipe for making Rose Petal Jam. (new recipes like this, lose the magic!) I printed the manual out, shredded it and spread it on bread- but it doesn't taste anything like jam!

Seriously though- a well written document. Infineon obviously has good taste in authors.

Max The Magnificent
User Rank
Blogger
Re: Check out the ADVANCED SENSE Guide
Max The Magnificent   9/10/2013 11:03:10 AM
NO RATINGS
@antedeluvian: These are the exact same words that I saw on an old recipe for making Rose Petal Jam...

I thought you were joking, but I wen tto read the recipe (I couldn;t help myself) and saw the following:

If you're picking the roses yourself, the best time is in the late morning, after the dew has dried and before the strong afternoon sun.

I'll have to remember this recipe :-)

antedeluvian
User Rank
Blogger
Re: Check out the ADVANCED SENSE Guide
antedeluvian   9/10/2013 11:10:00 AM
NO RATINGS
Max

Just going through the document and looking at section 2.5 on characteristics of straight lines. Seemed rather conicidental- have you seen my current blog on calibration over on Planet Analog?

Max The Magnificent
User Rank
Blogger
Re: Check out the ADVANCED SENSE Guide
Max The Magnificent   9/10/2013 11:33:35 AM
NO RATINGS
@antedeluvian: ...have you seen my current blog on calibration over on Planet Analog?

I hadn't -- but I have now :-)

Sanjib.A
User Rank
CEO
Very much useful
Sanjib.A   9/10/2013 2:05:40 PM
NO RATINGS
@Aubrey, thank you for sharing information on these current sense devices. I was not aware of these devices and never used so far. But looks like I sould be able to make use of these devices in my designs. You mentioned about calibration. Do these devices require runtime calibration or one-time calibration in the factory before shipping? Without calibration does it make a huge deviation or could the tolerance be accommodated in the firmware if too much of accuracy not needed?

Page 1 / 3   >   >>


EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Dr. Duino Diagnostic Shield Deduces Dilemmas in Arduino Shield Stacks
Max Maxfield
12 comments
As you are probably aware, I'm spending a lot of my free time creating Arduino-based projects, such as my Inamorata Prognostication Engine, my BADASS Display, and my Vetinari Clock.

EDN Staff

11 Summer Vacation Spots for Engineers
EDN Staff
20 comments
This collection of places from technology history, museums, and modern marvels is a roadmap for an engineering adventure that will take you around the world. Here are just a few spots ...

Glen Chenier

Engineers Solve Analog/Digital Problem, Invent Creative Expletives
Glen Chenier
15 comments
- An analog engineer and a digital engineer join forces, use their respective skills, and pull a few bunnies out of a hat to troubleshoot a system with which they are completely ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
46 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)