Hi friends,
I need a lead acid battery charger to charge a 200ah battery, the charger should be non-switch mode type, and the charger transformer is controlled by the primary side.
Tia.
The original post is from 2009 and presuming some one may need similar circuit and the need is for a 12 volt charger, this kit is widely manufactured in China and in use at my end and may be many parts of the world too. It is simple and easy to understand. Controls the primary side of the charging transformer and keeps monitoring the battery voltage. As the voltage reaches pre-set level, it switches a relay which in turn switches the primary side of the transformer and starts charging. As the voltage reaches the cutoff level, it switches off the relay thus switching off the primary side of the charging transformer.