Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 2
Duane Benson
User Rank
Author
Re: All About Batteries
Duane Benson   4/15/2014 5:06:38 PM
That it would. I just want to make sure it waits until I'm not near before the fireworks start.

Max The Magnificent
User Rank
Author
Re: All About Batteries
Max The Magnificent   4/15/2014 5:02:49 PM
@Duane: The search for a non-explosive solution is back on.

You don't think the fact that your robot avatar might spontaneously burst into flames adds a certain air of excitement to the project?

Duane Benson
User Rank
Author
Re: All About Batteries
Duane Benson   4/15/2014 4:57:50 PM
NO RATINGS
I've designed a few boards that use LiPoly batteries with the Microchip MCP73833 charger chip. It seems to work well in singles, but I haven't been brave enough to run a few in series for some 12V motors.

My first thought was to have an MCP73833 for each LiPoly cell. The Vin sides would be in parallel and the Vout sides would be in series. However, as soon as I drew that out in my head, it became clear that it would end up all explody due to the common ground on one side and non-common round on the other.

I need to switch the whole system between parallel and series, grounds included. I could certainly do it with some relays or multi-pole switches, but automatic would be cool.

It's been on the back burner for a while, but I've got some pretty good small 12V motors that I want to use. The search for a non-explosive solution is back on.

lithsafe
User Rank
Author
Introduction
lithsafe   4/15/2014 3:56:51 PM
NO RATINGS
LithFire-X, LLC (dba LithSafe) has developed our patented methodology; 'SCIC': suppression through cooling, isolation and containment.  We have developed methods for the safe testing transport and storage of lithium ion technologies.

Max The Magnificent
User Rank
Author
All About Batteries
Max The Magnificent   4/15/2014 3:36:16 PM
NO RATINGS
Hi William -- this is very interesting -- fully enough Ivan just posted this blog about zinc-air batteries that talked a lot about charging battery packs with multiple cells.

<<   <   Page 2 / 2


Radio
LATEST ARCHIVED BROADCAST
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Like Us on Facebook
Special Video Section
The LTC®6363 is a low power, low noise, fully differential ...
Vincent Ching, applications engineer at Avago Technologies, ...
The LT®6375 is a unity-gain difference amplifier which ...
The LTC®4015 is a complete synchronous buck controller/ ...
10:35
The LTC®2983 measures a wide variety of temperature sensors ...
The LTC®3886 is a dual PolyPhase DC/DC synchronous ...
The LTC®2348-18 is an 18-bit, low noise 8-channel ...
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...