Breaking News
Comments
Newest First | Oldest First | Threaded View
Page 1 / 3   >   >>
junko.yoshida
User Rank
Blogger
Re: Why Standardize Car Power Components?
junko.yoshida   7/22/2013 8:53:12 AM
NO RATINGS
That's a great observation, DrQuine. I will keep that in mind when I talk to Advantest today.

_hm
User Rank
CEO
Contacting Toyota too
_hm   7/20/2013 9:10:13 PM
NO RATINGS
@Junko: How about contacting Toyota in Japan? They may be better to answer our curiosity.

If most renowned organizations are not involved, than it is not international standard. May be at latter stage they will modify and make it IEEE standard. Many US organization does follow this practice.

 

 

Tom Murphy
User Rank
Blogger
Re: Cornering a market?
Tom Murphy   7/20/2013 6:58:17 PM
NO RATINGS
Mhrackin: Oh, now I remember all those old bad movies where some American spy is tied up by bad guys in some Central American dictatorship and they attach an old telephone ring device to his, um, elbows and start crankin'.  Yeah. That looked pretty painful if that's what we're talking about. I guess it's a good thing they put the little trap door on those phone plugs (sigh).

DrQuine
User Rank
CEO
Why Standardize Car Power Components?
DrQuine   7/19/2013 9:56:30 PM
NO RATINGS
One practical reason for standardizing car power components is to enable emergency services to rationally deal with the guts of a car in an emergency. Today the high voltage high current wires on hybrid cars are fat bright orange wires - not the place to apply cutting tools. Perhaps there are some more mundane conventions that would be nice to standardize so that emergency personnel (or garage mechanics) don't have unwanted surprises on vehicles with which they are not already familiar.

DrQuine
User Rank
CEO
Cornering a market (phone thread)
DrQuine   7/19/2013 9:51:20 PM
NO RATINGS
When I was in high school, I took advantage of the 86 VAC telephone rung voltage to trigger a standard 1/4 watt night light as a silent phone bell that wouldn't awaken anyone late at night (I turned off the other bells). Having my fingers on the terminals of an open phone when it rang did give an unpleasant jolt.

mcgrathdylan
User Rank
Blogger
Re: What needs to be standardized?
mcgrathdylan   7/19/2013 6:47:21 PM
NO RATINGS
For obvious reasons, I'm with Junko on this. I think we are fortunate to have the press (well, what's left of it) to find out the things that companies don't necessarily want us to know. I think that's the whole point. Waiting for companies to tell us what they want, when they want means we will be a lot less informed.

mhrackin
User Rank
CEO
Re: Cornering a market?
mhrackin   7/19/2013 4:23:31 PM
NO RATINGS
I forgot to mention one point: at 20Hz, the body's response is much more painful than the same shock @ 50 or 60 Hz.  The frequency response of the nervous system makes the muscles contract and relax at the 20 Hz rate, so you do get more "all shook up."  60 Hz is considerably attenuated.

mhrackin
User Rank
CEO
Re: Cornering a market?
mhrackin   7/19/2013 4:04:24 PM
NO RATINGS
Working in telecom for many years, I've been "bitten" by ringing voltage a few times; it's relatively mild, but not particularly entertaining.  It reminds me of Mark Twain's comment after being tarred, feathered, and ridden out of town on a rail: "If it wasn't for the honor of the thing, I'd of just as soon walked."

Tom Murphy
User Rank
Blogger
Re: Cornering a market?
Tom Murphy   7/19/2013 3:59:36 PM
NO RATINGS
mhrackin:  So, really, that's not enough to shock even a well-grounded baby, right? (or sea otter or whatever -- I grimace at the image of some poor little kid with a wet diaper getting zapped!)

Tom Murphy
User Rank
Blogger
Re: Cornering a market?
Tom Murphy   7/19/2013 1:43:10 PM
NO RATINGS
mhrackin: You were indeed a brilliant EE at an early age!  It wasn't until I was in my 20s that I did something similar with a screwdriver while trying to remove the plate surrounding an outlet. Clearly, I was not intended for a life as an engineer.

Would anyone else like to fess up to a shocking experience?

Page 1 / 3   >   >>


Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
The Engineering Life - Around the Web
Terry Cutler, CTO, Digital Locksmiths

The USB Keys in the Urinal
Terry Cutler, CTO, Digital Locksmiths
Post a comment
Security is a major obsession today, particularly as the industry makes the shift from traditional, standalone devices to the design of connected, networked systems that are “always ...

Engineer's Bookshelf
Caleb Kraft

The Martian: A Delightful Exploration of Math, Mars & Feces
Caleb Kraft
6 comments
To say that Andy Weir's The Martian is an exploration of math, Mars, and feces is a slight simplification. I doubt that the author would have any complaints, though.

Design Contests & Competitions
Caleb Kraft

Join The Balancing Act With April's Caption Contest
Caleb Kraft
58 comments
Sometimes it can feel like you're really performing in the big tent when presenting your hardware. This month's caption contest exemplifies this wonderfully.

Engineering Investigations
Caleb Kraft

Frankenstein's Fix: The Winners Announced!
Caleb Kraft
8 comments
The Frankenstein's Fix contest for the Tektronix Scope has finally officially come to an end. We had an incredibly amusing live chat earlier today to announce the winners. However, we ...

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)