Hi, I need to integrate a battery backup to a previous electronics project. I am an electronics engineering student and my professor assigned to me the sealed lead-acid battery type to do implement the backup.
Searching this forum I found about the existence of a site called "Battery University"- which is great by the way - and on this link
http://www.batteryuniversity.com/partone-13.htm they say that to improve the recharge times the right thing to do is to use a multi-stage charge algorithm involving a constant current (bulk) stage, a constant voltage stage and a float charge stage. The last state is important in this particular application because a requirement of the project is to automatically avoid overcharging.
So, my questions are:
1- Is this multi-stage circuit too complex to implement? can you give any example circuits or guide me to the proper information?
2- Can I alternatively use a simpler approach (constant current only or constant voltage only)? being aware that it will represent a tradeoff in battery life and charging periods?
Battery Specs:
-12V
-4.5Ah for 20 hours
-Sealed Lead-Acid
I appreciate your help and advices.
Searching this forum I found about the existence of a site called "Battery University"- which is great by the way - and on this link
http://www.batteryuniversity.com/partone-13.htm they say that to improve the recharge times the right thing to do is to use a multi-stage charge algorithm involving a constant current (bulk) stage, a constant voltage stage and a float charge stage. The last state is important in this particular application because a requirement of the project is to automatically avoid overcharging.
So, my questions are:
1- Is this multi-stage circuit too complex to implement? can you give any example circuits or guide me to the proper information?
2- Can I alternatively use a simpler approach (constant current only or constant voltage only)? being aware that it will represent a tradeoff in battery life and charging periods?
Battery Specs:
-12V
-4.5Ah for 20 hours
-Sealed Lead-Acid
I appreciate your help and advices.