modified 11 years ago

LT3652 12V SLA Battery Voltage Feedback

00:39:10

Feedback Input needs 250k Ohm equivalant to correctly bias diff pair of LT3652 feedback (Vfb) amplifier. 

When the current in both legs of diff pair are matching then the network is at threshold voltage.

The 100k is a thermister (B=4250, i.e. 13.278V:50.7k@40C, 13.630V:100k@25C, and 14.068V:357k@0C) placed on SLA type battery to match charge voltage  with temperature.

The more I look at LT3652 datasheet, which shows a 22k B=3380 thermister for temperature compensation, the fisher it looks. So I am trying to do compensation to this standby data: http://www.powerstream.com/SLA.htm

Circuit board(s) I am working on with this:
http://epccs.org/indexes/Board/CC03/

published 11 years ago

crkt

11 years ago

Unknown component :O

crkt

11 years ago

I have last updated version 13.0

flowDAQ

11 years ago

Guess Apple has to Ok the i-update. It seems to work on Android and Chrome.

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