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UCC27282: H bridge bidir buck-boost configuration: bootstrap strategy ?

Expert 7280 points
Part Number: UCC27282

Dear team,

I was wondering if you had an app note or a ref design somewhere that would use one of our HB driver in a buck-boost topology, without using a dedicated bias supply to provide the high side gate drive voltage.

I have worked on some ideas where we would use a few external passives for the switching HB to recharge the 100% duty cycle half bridge, but I am not sure it would work..

Many thanks in advance for your inputs!

Best regards,

PA