The LEM is the Rolls Royce of current sensors. I was going to use a Tamura, which is almost half the price, and probably works fine, but Fran was talking to me and he said he uses the LEM all the time, which was $27.50 each, so I went with his suggestion. However, as he sometimes says, "my projects are not cost sensitive". hehe.
If you do IGBTs, you should talk to Adam and Jack Bauer. They are the experts.
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