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0 votes
3 answers
97 views

Does DC-DC 24V-12V waste less power than AC-DC 220V-12V?

I am modifying an existing UPS to allow for a longer backup time. I plan on adding a cooling fan along with an external current controlled power supply to charge the larger batteries. There are some ...
Hanzala19's user avatar
2 votes
4 answers
10k views

Battery Charger using a buck converter

I'm designing a Lead Acid battery charger with 3 stages. For the 2nd stage (constant voltage stage) as it is written in literature: the voltage applied on the battery must be dependent on temperature. ...
Billben's user avatar
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