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miniature Li-Ion
How many do you need? Your size is pushing it for most li-ion manufacturers. I'd recommend contacting Fullriver. I've worked with them on a couple of projects and they are legit.
Tuesday, 20 November 2012 - 00:11
Cheap lowcurrent measurement
A single data point is pretty far from convincing IMHO. However, it shouldn't be that hard to even beat the 34410A's low current measuring abilities. It is, however, a very nice...
Monday, 12 November 2012 - 18:45
Low power RF
jgmdesign wrote:Yeah I looked at the Nordics. Small enough it looks, but the reviews on Sparkfuns website about the range is not very positive. That speaks more to the antennas/...
Saturday, 10 November 2012 - 07:54
Low power RF
Nordic's proprietary stuff is pretty good for low power/size. That kind of range is definitely doable, depending on antenna/line of sight/etc. Any 802.15.4 transceiver should also...
Friday, 9 November 2012 - 22:42
Tantalum Capacitors?
ka7ehk wrote:Low ESR is a major problem with stability of LDOs. Most need low ESR cap, but not too low. There are a few out there that are designed for ceramic output caps. But,...
Wednesday, 7 November 2012 - 05:43
DipTrace... WOW!
pixel2001n wrote:meslomp wrote:The link to my work network often drops and then I lost the license, cannot save work and sometimes even altium tends to crash such that you have to...
Tuesday, 6 November 2012 - 16:31
PCB finish
ENIG has great shelf life and, as stated, good planarity. With BGAs this is very useful. It also adds some cost due to it requiring a large number of steps (~30 IIRC). If cost is...
Tuesday, 6 November 2012 - 16:27
Tantalum Capacitors?
Tantalums are crazy expensive though. Tantalum is also a conflict mineral. They sit between ceramics and electrolytics in terms of ESR. Lower ESR isn't always a good thing - the...
Tuesday, 6 November 2012 - 16:14
Proximity distance sensors - Recommendations - SOLVED
RickB wrote:After the car is properly parked, hang a foam ball on a string from the ceiling so that it just touches the windshield at a convenient point for the driver. Maybe add...
Monday, 8 October 2012 - 23:04
Power supply noise - need some ideas
Jim - what components are in your pi filter? I'd recommend a good stiff RLC filter. Put its cutoff way below the frequency of your noise and you should be good to go, as long as...
Friday, 5 October 2012 - 01:01
Mosfet H-Bridge Help
bobgardner wrote:Those buttons are normally closed? So both top transistors are on when not pressing a button? When you press a button, switch opens, gates pull up, top goes off,...
Monday, 1 October 2012 - 01:36
"separate" power supplies for servos
Torby wrote:Um, why do you need separate power supplies for the servos? Perhaps you're worried about motor noise? That's why I've done this in the past. Hobby servos can pull very...
Monday, 1 October 2012 - 01:33