That's what I like about the Cincon TR(G)1509: The chose to not split the primary. The currently avaliable G version still did not split the primary and only added a Faraday sheild winding outside the magnetic circuit (Around the outside of the core) which is easy to deal with.
Every other switcher I've pulled apart splits the primary. The main reason to do this is to limit the leakage inductance: Magnetic field of the primary curcuit that is not part of the secondary curcuit. Leakage inductance shows up as a voltage spike on top of the primary winding added to the turns ratio voltage when the primary transistor turns off, kind of like an ignition coil. You either have to way over rate the transistor or add an energy wasting snubber to keep the transistor from dying. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5efdfc7b-7a74-4d66-8394-085c584a9695%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
