I'm trying to calculate the ESR of my inductor, i calculated the inductance by connecting it in series with a 10k resistor and increasing the frequency of the function generator until the voltage across the resistor was half the input voltage, then used the formula L = R/(2*pi*f).

I was wondering if anyone knew a method of calculating the ESR of the inductor? I have an LCR meter but the current output is apparently too low to set up the flux.

Im operating a 10mH 5A common mode choke at 20kHz.

Thanks

I was wondering if anyone knew a method of calculating the ESR of the inductor? I have an LCR meter but the current output is apparently too low to set up the flux.

Im operating a 10mH 5A common mode choke at 20kHz.

Thanks

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