There is no time to design a DC-DC Converter and a Battery Charger at this time and hence I am going to use this DC-DC Converter which gives 24V DC from 24V DC input.
There is a clue in the MOSFET symbol about that!Why can't I get 14.7V after MOSFETs and diodes? Because of Mosfet and diode drops? Are the diodes D3 and D4 really required for reverse Voltage/Current blocking? Can't the Mosfet do that?
Series contradicts parallel --> thus I say it is impossible. Either the batteries are in series or they are in parallel.how can I charge series-connected Batteries in Parallel?
Did you read peltier application notes.15V @ 15A is needed for the 4x Peltiers and that is why we are using the step-down DC-DC Converter.
When there is no time to design a charger, then why not but it? There are cheap charger for almost any combination of solar cells and batteries.Should I work out a few DC-DC Converter euuations and make a new DC-DC Converter with using fixed PWM which then gives say 24V from say 36V Solar Panel?
I don't want to allow > 2A to flow into battery and make it explode.
How to limit the charging current to the battery? I don't want it to be more than 2A.
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