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A comment on Reverse-engineering a vintage power supply chip from die photos. Parent comment

Re:Reverse-engineering a vintage power supply chip from die ... by baybal2 on Thursday August 19, 2021 @02:26AM (#28230979)
Depending on whether you use depletion, or enhancement mode GaN devices. Early GaN devices were JFET, not pure FETs too.

Ones designed with power electronics use in mind are made intentionally close to silicon FETs on specs.

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