opampsmoker
Member
Please assist…We have 96 back-to-back NFET switches which are to be switched ON/OFF occasionally. We are using 30V NFETs (3x3mm). They will carry 10 Amps when ON.
We need 96 separate High side isolated drive voltages (~12V) to switch all of these.
What is the cheapest/smallest way to get all these high side isolated drive voltages?
Transformer drive chips..
We could use 96 Max845’s with 96 Halo TGM-010P3RL transformers with voltage doubler rectifier on each output. However, I reckon the TGM-010P3RL will likely go nil-stocked…..so I am also pondering winding ninety-six 1:1:2 transformers myself on torroids.
Flyback converters:
However, I am wondering if I could do eight flyback converters, each with 13 separate isolated dsecondaries (one secondary for primary side regulation). I could make it a “triple layer sandwich wind”, with a primary of 4 series layers, with three secondaries in each “primary sandwich”.
What do you think is the “lowest component count” way of doing this?
MAX845 transformer driver
TGM-010P3RL transformer
We need 96 separate High side isolated drive voltages (~12V) to switch all of these.
What is the cheapest/smallest way to get all these high side isolated drive voltages?
Transformer drive chips..
We could use 96 Max845’s with 96 Halo TGM-010P3RL transformers with voltage doubler rectifier on each output. However, I reckon the TGM-010P3RL will likely go nil-stocked…..so I am also pondering winding ninety-six 1:1:2 transformers myself on torroids.
Flyback converters:
However, I am wondering if I could do eight flyback converters, each with 13 separate isolated dsecondaries (one secondary for primary side regulation). I could make it a “triple layer sandwich wind”, with a primary of 4 series layers, with three secondaries in each “primary sandwich”.
What do you think is the “lowest component count” way of doing this?
MAX845 transformer driver
TGM-010P3RL transformer