Go Back  R/C Tech Forums > General Forums > Electric On-Road
Pulse Chargers  vs linear chargers >

Pulse Chargers vs linear chargers

Pulse Chargers vs linear chargers

Reply

Old 07-19-2004, 10:12 AM
  #1  
Tech Addict
Thread Starter
 
imjonah's Avatar
 
Join Date: Oct 2003
Location: Colorado
Posts: 704
Default Pulse Chargers vs linear chargers

I ocassionaly see the advice make sure it is a linear charger
not a pulse charger. I also saw a note in once in charger's spec sheet that said it used linear charging up to 5 amps and pulse charging from 5 to 10 amps.

How do you tell weather a charger is linear or pulse?

I rarely see pulse or linear mentioned in the spec sheets.

Is it mostley cheap chargers which are pulse? or is it mostly smaller chargers.


If it is not to complex what exactly is a pulse charger and why is it a negative?
-------------------------------------------------------
[I am guessing it has something to do with getting a higher amp charging rate out of smaller power supply]

I assume by 'pulse' they do not mean the brief polarity reversal circuit that some chargers had that supposedly helped when used ocasionally with nicad packs.
imjonah is offline  
Reply With Quote
Old 07-19-2004, 10:21 AM
  #2  
Tech Fanatic
 
crimson eagle's Avatar
 
Join Date: Jun 2003
Location: Nor Cal
Posts: 841
Default

Hi,

I run the Pro Trak (I also am the Pro Trak contact in the US) which offers many varieties of charge type, linear or various types of pulse. I have found that when racing I use Linear as it gives better punch. When I'm just cycling my cells I use Soft Pulse, as I recall this uses a rest period of 1/4 of a second every second, this is supposed to help with the internal structure and stress in the cell but it takes 25% longer to charge, when I'm cycling this is not an issue.

There are a few types of pulse charge, one of the pulse profiles will give a discharge pulse instead of a rest period, the will obviously take even longer to charge.
crimson eagle is offline  
Reply With Quote
Old 07-19-2004, 01:14 PM
  #3  
Tech Fanatic
 
SalvadoriRacing's Avatar
 
Join Date: Dec 2003
Location: Brazil, Sao Paulo
Posts: 928
Default

you can charge your nimh pack with a pulse charger.....

simply check if the charger make a BZZZZ noise.....

if your charger DOES it, it'll hurt nimh cell because this noise means that the pulse current is too high.....
SalvadoriRacing is offline  
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Terms of Service