Recent content by LdMorgan

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    Transformer Problem Homework: Building a 1:1 Isolation Transformer

    Ah! Thanks--I'll have to recheck the spec sheet I was looking at.
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    Transformer Problem Homework: Building a 1:1 Isolation Transformer

    Thanks, by the way, It's good to be here. I've been reading some really interesting stuff...
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    Transformer Problem Homework: Building a 1:1 Isolation Transformer

    Yes, 1.6 tesla is about the most the core could possibly handle. It is/was the main power transformer from the microwave oven. Laminated and made for 60 Hz. The core was 2 1/2" thick before I split it, and probably handled 12000-15000 watts of power. Even with low voltage input and half the...
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    Transformer Problem Homework: Building a 1:1 Isolation Transformer

    I think I've made some progress on this. I have calculated the magnetic reluctance (R) using Hopkin's Law where R = the length of the magnetic circuit / the permeability of the material X the core sectional area. I found the permeability by multiplying the relative permeability (40,000)...
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    Transformer Problem Homework: Building a 1:1 Isolation Transformer

    Homework Statement I'm working with a stripped-out microwave oven transformer core. I've split off a stack of laminations 1.25" thick, and cut out the middle leg of the "E" lams. I want to build a hollow-core 1:1 isolation transformer, and input a slow (about 3 Hz) pulsed DC current...