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LT1248 PFC controller in "controlled open loop" circuit to adjust battery charge current?

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Flyback

Well-Known Member
Hi,

We have batteries which are 400v +/-5v ( no matter what the state of charge)
We wish to charge them with our “controlled open loop” method…depicted as attached.
Its non isolated but we’ll be ok.

We simply vary the voltage on the SS pin of the LT1248 Boost PFC controller in order to change the charge current.
Do you see any problems with this application of a control voltage into the SS pin of the LT1248?
(LTspice sim works fine, but you never know with the real thing)

LT1248 datasheet
https://www.analog.com/media/en/technical-documentation/data-sheets/1248fd.pdf
 

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  • LT1248 Boost PFC battery charger_1.asc
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  • LT1248 Boost PFC battery charge_1.pdf
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