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Dual VIN input to extend the input voltage range.

Thread Summary

The user inquires about synchronizing two ADP1074s to drive separate primaries while sharing a secondary winding and synchronous rectification MOSFETs for a redundant +12 V/6 A supply, with automatic switchover if one input is missing. The final answer suggests that an Analog Devices support engineer can assist with this configuration. No specific technical details or solutions are provided in the final answer.
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Category: Hardware
Product Number: ADP1074ACCZ, ADP1074, ADP1074

Hi at all.
We’re designing a redundant supply with two inputs: +9–32 V and +30–60 V, targeting a +12 V/6 A output. Can two ADP1074s be synchronized so that each drives its own primary, while sharing the secondary winding and synchronous rectification MOSFETs, with automatic switchover if one input is missing? Please see the attached block diagram.

Many thanks.