harrychoo Posted September 19, 2005 Report Share Posted September 19, 2005 Hi all. I'm plan to design a switching charger for a Sealed Lead Acid Battery with ratings 12V and 7Ah. I plan to use current mode controller either UC3844A from Unitrode or HA17384 from Hitachi. Can i know where can i find the schematic for this? And i also not sure how to control the charging voltage and current by using switching mode.. Or any other idea to design switching charger out of that 2 switching regulators?Need more info on this. Thanks Quote Link to comment Share on other sites More sharing options...
Spagbol Posted September 19, 2005 Report Share Posted September 19, 2005 Unitrode produce a switch mode IC specifically for Lead acid charging, the bq2031. If you still want to use one of those PWM ICs you mention you could always have a look at the application note for the bq2031 to see how it works: http://focus.ti.com/lit/an/slua017/slua017.pdf Quote Link to comment Share on other sites More sharing options...
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