Nice low impedance

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T106-26 core, 10 turns quadfilar 16 AWG.

Since the application is a dual inductor, that should have low leakage, and uses doubled up wires for ampacity, I figured I might as well wire them as "star quad".

TDR shows 5ns (reflection, actual length 2.5ns), and 13.85 ohms. Nice and low.

I started with about a half meter of wire, so 2.5ns is 2e8 m/s, or a velocity factor around 0.67. Not bad for generic Soldeaze insulation and crummy air gaps.

Tim

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Seven Transistor Labs, LLC 
Electrical Engineering Consultation and Contract Design 
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Tim Williams
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Coupled inductor: Rdc and inductance?

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 Thanks, 
    - Win
Reply to
Winfield Hill
9.2uH (per winding), Rdc is whatever a quarter meter of 16 AWG has.

Rac is far more significant. Those yellow-white #26 cores are shit. But that's fine in my application, for once!

Let's see, 2.5ns of 13.8 ohms at c = 0.67 c_o, is about 5nH. Suspiciously low leakage for half a meter of anything! If that's right, then k =

0.99973.

Tim

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Seven Transistor Labs, LLC 
Electrical Engineering Consultation and Contract Design 
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Reply to
Tim Williams

Nice winding job. Was that hard on the hands ?

Reply to
boB

Yes.

Tim

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Seven Transistor Labs, LLC 
Electrical Engineering Consultation and Contract Design 
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Reply to
Tim Williams

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