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Lead acid battery charger

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srinivasbakki

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Hi,
I'm looking to build a solar charge controller for lead acid battery rated 35Ah. The panel is rated 200w at 24V. I haven't yet built this circuit other than playing around with the example buck converter circuits on LTSpice. I would want to have a prototype running on the breadboard first. Have following questions :
1) My switching frequency would be 300 khz, is this a problem to build on breadboard ?
2) Which switcher IC ? I searched in digikey, but couldn't find any for my specification: 15 - 40V @ 8A.
i would need this to simulate as well, can i find spice model ?

Does my approach make sense or iam not on the same page as other designers out there ?

Thanks,
Srinivas
 

Easyrider83

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Just buy it from eBay. Save your time and money.
300kHz is too low. Efficency will be low.
And MPPT are recomended for solar powered applications.
 

srinivasbakki

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Well, this is for learning only. So, buying is no fun :)
 

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