Considering OP's
"friend" was apparently illegally selling semiconductors to the commies - and now he's asking what semi's are going into commie rockets?
We're being trolled yet again
I have to conclude he's working for 'em.
Thanks, most of the Chinese Power Supplies ive worked on, had chips like UCC38C43 or Fairchild chips in them.
The only Chinese ICs i saw were the ON/OFF controlled type offline flyback ones.
Or do the Chinese have their own speciality power supply control ICs?, but they don't make them sellable to the world outside of China?
Now you're asking us again about stuff the commies have? All your "schematics" use Linear Tech parts - the most expensive in the business.
Did you finish your
drone-making startup? Hint: china makes all the major components - rare-earth PM motors, cameras, batteries etc.
Plan your next trip to Shenzhen already.