laminated iron core DC high current filter choke vs. CT toroid
laminated iron core DC high current filter choke vs. CT toroid
(OP)
Is it feasible to press a surplus current transformer (toroid type) into acceptable service as a DC power choke for 100 & 120 HZ
ripple? I calculated a needed L of about 1.8 to 2milliH of L. Any one had success doing something similar?
Thanks,
MikeHS
ripple? I calculated a needed L of about 1.8 to 2milliH of L. Any one had success doing something similar?
Thanks,
MikeHS





RE: laminated iron core DC high current filter choke vs. CT toroid
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If we learn from our mistakes I'm getting a great education!
RE: laminated iron core DC high current filter choke vs. CT toroid
That seems rather low value. Not a very critical application. I've used low voltage transformer secondaries.
RE: laminated iron core DC high current filter choke vs. CT toroid
- transformer --> no energy storage --> high µ material, no airgap
- choke --> energy storage --> airgap (or distributed airgap by using low µ material)
RE: laminated iron core DC high current filter choke vs. CT toroid
Now, the core of a CT would be a good choice as a common mode choke, but the single high-turn winding of a CT is not suitable as the winding of a common mode choke.