Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
William Miller
User Rank
Author
re: Supercaps can be a good choice over batteries for backup applications
William Miller   1/30/2013 3:52:02 PM
NO RATINGS
Every generation of capacitors naturally is better than the previous one. That's called evolution or progress. Using these supercapacitors in SSD will improve their characteristics significantly. I use SSD in my PC and I can't wait to replace it for even faster one. _______________ William - http://www.carid.com/

Abrahim
User Rank
Author
re: Supercaps can be a good choice over batteries for backup applications
Abrahim   6/28/2012 6:58:14 AM
NO RATINGS
the best use of SupCaps is to reduce the size of the battery which is often governed by the peak current requirements of a circuit. rather than using supcaps as a replacement for batteries (which is not advisable unless the outage is short) it should be used to supplement on certain parameters like peak/burst outputs of power.

DadOf3TeenieBoppers
User Rank
Author
re: Supercaps can be a good choice over batteries for backup applications
DadOf3TeenieBoppers   6/21/2012 1:35:03 PM
NO RATINGS
There are now 5000F capacitors out there with sub-milliohm ESR (IOXUS makes them). They are rated for 2.7V. Put a 2.4V zener in parallel across them to keep them from overcharging, and they can be ganged as far as the eye can see. It may take a while to trickle charge them (it will take a day and a half for a 100mA charger to do so; the current limit is to keep a 500mW 2% 2.4V zener from overheating if it carries all the current in a confined space), but they would make an ideal short term power storage. For any facility that cannot have power shut down, they will keep power up long enough for backup generators to turn on and come on line.

_hm
User Rank
Author
re: Supercaps can be a good choice over batteries for backup applications
_hm   6/11/2012 12:41:31 AM
NO RATINGS
@I_B_Green: Yes, leakage current is parameter of concern for replacing battery in RTC application. Many application requires one year or more retention duration. Supercap leakage current can work only up to few weeks.

prabhakar_deosthali
User Rank
Author
re: Supercaps can be a good choice over batteries for backup applications
prabhakar_deosthali   6/10/2012 11:34:54 AM
NO RATINGS
If Super caps can be combined with batteries in EVs , they may assist in quick energy recovery during braking and also help in quicker acceleration , in my opinion

I_B_GREEN
User Rank
Author
re: Supercaps can be a good choice over batteries for backup applications
I_B_GREEN   6/8/2012 4:49:11 PM
NO RATINGS
And how do they compare on,leakage current? not a good choice for ultra low power sleep wake systems. Leakage a function of capacity, so trying to replace batteries for long duration backup not a good choice from efficiency standpoint. excellent choice for agmenting a battery for high pulse low duration help. Can decrease battery capacity needed. cross over of battery and super cap leakage rates needs to be graphed and desiminated.

SUPERCAPACITOR
User Rank
Author
re: Supercaps can be a good choice over batteries for backup applications
SUPERCAPACITOR   6/6/2012 1:46:47 PM
NO RATINGS
1)Regarding the supercap limitation of 2,5V and 2,75V maximum per cell mentioned in the article. Vina Technology (korea) www.vina.co.kr launched a supercap with 3V from 3F to 600F. 2)Also a chinese company has a patent and is in the market a hybrid unit: Supercap Lithium battery (3,2V from 10Ah to 100Ah) can be check at http://www.cyliyuan.com/en/product3.asp



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 ...