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

Vetinari Clock: Additional Possibilities
Max Maxfield
12 comments
In my previous blog on the topic of my Vetinari Clock project, we pondered a number of possibilities for the positioning of switches on the front panel, and we ended up with a number of ...

Jolt Judges and Andrew Binstock

Jolt Awards: The Best Books
Jolt Judges and Andrew Binstock
1 Comment
As we do every year, Dr. Dobb's recognizes the best books of the last 12 months via the Jolt Awards -- our cycle of product awards given out every two months in each of six categories. No ...

Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
2 comments
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

David Blaza

The Other Tesla
David Blaza
5 comments
I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...