Battery chargger for an inverter Current calculations ?

thannara123

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Hello experts ,
I want to build a battery charger in an inverter using an Hbridge .
How can i vary the current for the battery as constant current charging ,Topping carging ,and the floating charging .
I know that diffrent current can produce with varing PWM.
But how the calculation for the boost converter ,may i get any refferance ?
the charger circuit look like
 

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The issue here is the complete lack of current limit if the leads are accidentally shorted - boom ! - or a lower voltage battery connected - not really a useful solution.
 

    thannara123

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Easy peasy said:
The issue here is the complete lack of current limit
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Yes. Nevertheless the solution is used by some simple UPS inverters, probably with a fuse as only protection against the said conditions.

I agree that a full featured buck-boost converter makes a better battery charger than boost only.
 

    thannara123

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Yes in my area most of the ups uses this type charging ,me also using one from 10 years back It is a cost effective one .
may i know what others using technology
 

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