24v Auto Cutt off battery Charger

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bpsystem
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24v Auto Cutt off battery Charger

Post: # 13219Post bpsystem
Mon Dec 25, 2017 10:50 pm

Hi, guys I have requirement for charge 24V battery with 28V DC 45A transformer, but i want to add auto cut off function for the transformer. pls help me..

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Neo
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Re: 24v Auto Cutt off battery Charger

Post: # 13224Post Neo
Mon Dec 25, 2017 11:59 pm

You mean to monitor battery voltage level and cut-off charging after the battery is fully charged ?

bpsystem
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Re: 24v Auto Cutt off battery Charger

Post: # 13234Post bpsystem
Fri Dec 29, 2017 7:01 pm

yep...

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Neo
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Re: 24v Auto Cutt off battery Charger

Post: # 13236Post Neo
Sat Dec 30, 2017 4:19 pm

You can do it either with a comparator or a small microcontroller. In my case, I used a small microcontroller (ADC) that cut-off charging, measure voltage and if fully charged, stop further charging until voltage level become lower which is checked every few minutes (continuous charging system) or else continue to charge. A battery charging regulator such as LM317, LM338 would help you to cope up with charging topologies for different batteries.

Also, there are battery charging ICs that are made for different charging method. In my case, I found it is less interesting :)

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