• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

transformer core

  1. S

    Why is the EI- Core most popular for power transformers?

    Note that the majority of small transformers (single-phase, 100-240V, 50hz/60hz, laminated core) are shell-type, with an EI-shaped core. Yet, as I understand it, they have comparatively poor productivity due to the visibility of much of their surface area; not wire wounds. There is also a lot of...
  2. S

    Why does a transformer transfer power from the primary to the secondary one?

    I'm struggling to keep my mind wrapped around the function of the transformer and, in the process, regretting the days I snooze back in my Electromagnetics class as an EE student when I was a boy:) I'm searching for an abstract explanation, but not just an equivalent one. I want it to be rooted...
  3. Triumph Herald

    Advice to speed up the decay time of an electromagnet when it is turned off please.

    Hello All, I have an electromagnet made from a Microwave oven transformer. I am only using the coil with the thicker wire. I've separated the transformer core into the "E" shaped bit and the "keeper" shaped bit and removed the other coil. When I turn the current off, I would like the attractive...

Latest threads

EE World Online Articles