need help on battery charger

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masud58

Joined: 19 May 2002
Posts: 119
Helped: 4
Location: Dhaka, Bangladesh

04 Nov 2006 14:49 need help on battery charger

assalamu alikum

i have a design which charge 120a/h battery from 145v ac . can some one write an programme for this type of design.
it charge

if main ac voltege 220ac it charge 11A

if main ac voltage 145ac it charge 11A constant

first sence main ac voltage then send frequency to moc for constant ampare.

if battery label 14v then its stop charging

please write software with basic

thanks

need help on battery charger

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wizpic

Joined: 23 May 2004
Posts: 380
Helped: 26

05 Nov 2006 0:42 Re: need help on battery charger

What type of batteries are you charging if it'ds lead acid then I think you have gone about it the wrong way to be honest, What you need is to be able to measure teh batttery voltage, as you are at the moment you have no means of telling you what the battery volatge is at, The PIC16f628/27 does not have ann A/D on it

In all the year I have been design and building battery chargers i have not seen it done that before,

give us more info i may be able to help

wizpic

nguyennam

Joined: 06 Sep 2006
Posts: 459
Helped: 28

05 Nov 2006 8:14 Re: need help on battery charger

If you can use the analog parts then it is much simpler for you, I guess that you are not familiar with both PIC and charger, so a charger made from discrete or analog (op amp for example) parts should be chosen.

That kind of circuit is every where on the internet, just "google" with the keyword "battery charger" +circuit, and you can choose one suitable.

nguyennam