help for Buck-boost converter design

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deepakchikane

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Hi

can anyone help me build a Buck-Boost converter.

application: Bidirectional Battery charger.

any articles.. idea will be appreciated.

1)12v dc-72v dc (Boost mode)

2)72v dc to 12 v dc (Buck mode)

What can be the control logic..??
 

What design plans have you consulted so far?

A buck converter can be constructed to run on hysteresis control via an op amp.

What current comes from your 72V source?

What current is safe to push into your 12V battery?
 

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