lm317 charger

A

aamir1

Member

• Feb 4, 2012

• #1

guyz this is a charger ckt for lead acetate battery the problem is i want to change it to 10A bcoz my battery is about 100AH so i need a 10A charging current but the i.c cannot provide this much current how can i modify this ckt to get 10A and will that changing cut the battery charging automatically at full charge plz help


View attachment 60813

 

Last edited: Feb 4, 2012

4pyros

Well-Known Member

Most Helpful Member

• Feb 4, 2012

• #2

That is not a auto cut off charger. Find a better circuit.

 

A

aamir1

Member

• Feb 4, 2012

• #3

can u provide me any circuit plz

 

4pyros

Well-Known Member

Most Helpful Member

• Feb 4, 2012

• #4

aamir1 said:

can u provide me any circuit plz

Click to expand...

Can you google it please.

 

K

kiyani014

New Member

• Feb 4, 2012

• #5

i did but couldn`t get any design which matches my specs and neither got an automatic charger

 

4pyros

Well-Known Member

Most Helpful Member

• Feb 4, 2012

• #6

You did not look hard enough;
https://electroschematics.com/5614/fast-charger-with-auto-cut-off/

 

audioguru

Well-Known Member

Most Helpful Member

• Feb 4, 2012

• #7

Foreign students come here and want us to do their homework for them.

 

B

bountyhunter

Well-Known Member

• Feb 4, 2012

• #8

That is a horrible design. Having the series didode outside the feedback loop makes the voltage control so bad it will not accurately charge the battery.

I can't post a schematic for a 10A/14V lead acid charger (it is not a simple project) but it would be hard to beat the price of the ones sold ready built.

 

Last edited: Feb 4, 2012