Delete comment from: Ken Shirriff's blog
I referred to your Apple smps tear-down and also to its schematic.But i just wanted to know about the Q1 and Q2 Mosfets.Are they really IRFP250? Because i have seen them they are very big but your tear-down photographs shows some different transistors.
One more thing i wanted to know about the ground of the circuit.Is it isolated or non-isolated?The schematic shows a single type of ground sign for all the grounds.
It would be great if you could clear my doubts.
Thanks...!!
Jun 2, 2015, 8:47:20 AM
Posted to Apple iPhone charger teardown: quality in a tiny expensive package