Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 2
Caleb Kraft
User Rank
Blogger
Re: Charging in a car
Caleb Kraft   11/6/2013 10:37:23 AM
NO RATINGS
Sure, a lot of stuff exists that use that old cylindrical interface, but switching to a usb plug wouldn't be a big deal. I wonder what the cost difference is between the two types of plugs.

MeasurementBlues
User Rank
Blogger
Re: Charging in a car
MeasurementBlues   11/6/2013 10:33:34 AM
NO RATINGS
But speaking of mini-USB cables (see my post immediately below), did you know that they have five connections, not four? The fifth is for a pull-up resistor that lets the cable charge some devices. My daughter's MP3 player was one of those. The cable that came with it would only charge the player when connected to a computer USB port but not to a charger. Pin 4 needs a pull-up resistor so the charger knows there's something connected to it. PCB USB ports don't have that.



I have a blog about this that I can post here on request.

MeasurementBlues
User Rank
Blogger
Re: Charging in a car
MeasurementBlues   11/6/2013 10:23:19 AM
NO RATINGS
>more manufacturers would simply put usb chargers in the place of the lighter.

Don't take away my cigarette lighter socket even though I have never smoked and never will. Why, because what if you need to power something besides a phone charger? For example, my GPS plugs directly into the lighter socket. Now true, the other end of the cable is a mini-USB so I could use a mini-USB cable plugged into a USB socket, if my cars had them.

MeasurementBlues
User Rank
Blogger
Re: Charging in a car
MeasurementBlues   11/6/2013 10:19:45 AM
NO RATINGS
Well, my "new" car is a 2001 and my "old" one is a 1999. Both have lighters.

Caleb Kraft
User Rank
Blogger
Re: Charging in a car
Caleb Kraft   11/6/2013 10:15:39 AM
NO RATINGS
I have one of those dual usb chargers.

I would assume that with smoking on the decline (it is isn't it?) that more manufacturers would simply put usb chargers in the place of the lighter. Hell, even if smoking isn't on the decline, energy sucking devices are obviously on the rise.

MeasurementBlues
User Rank
Blogger
Re: Charging in a car
MeasurementBlues   11/5/2013 9:28:09 PM
NO RATINGS
I keep two Apple cables and a micro-USB cable on the car for charging.

MeasurementBlues
User Rank
Blogger
Charging in a car
MeasurementBlues   11/5/2013 9:27:00 PM
NO RATINGS
>many consumers were frustrated when they tried to charge their portable devices in cars.

Well, it depends on how long you're in the car, doesn't it? If you take a 15 minute drive and you start with your phone at 20%, do you expect 100% in 15 minutes? Wou wonlt get that from a home charger. For less than about $15, you can get a dual charger that plugs into a cigarette lighter. I have a dual charger. Unless you're on a 2-hour drive, don't expect your phone to be fully charged.

 

<<   <   Page 2 / 2


Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Engineering Pop Culture!
Chuck Maggi, Engineering Manager

Two Cocky Techs Get Their Comeuppance
Chuck Maggi, Engineering Manager
Post a comment
Two swaggering technicians are dramatically humbled when they flip the power switch on a high-voltage simulator.

The Engineering Life - Around the Web
Dwight Bues, Systems Engineer

The Case of the Nonexistent Component
Dwight Bues, Systems Engineer
Post a comment
Every engineer has likely had the unfortunate experience of verifying a part's availability with a vendor, only to have the part ultimately wind up either not getting produced or ...

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.

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)