The specification is asking for an inductance measurement of 10.9uH
+/- 15% with a 20V Peak-to-Peak Square Wave at 200KHz over the operating temperature range. Would any one happen to have a Test Set-Up which would perform this type of measurement? I would like to make the inductance measurement. Any help would greatly be appreciated.Thanks.
in article snipped-for-privacy@posting.google.com, jemilio at snipped-for-privacy@hotmail.com wrote on 5/4/04 2:46 PM:
Again, this seems to be one of those poorly worded posts that I see all too often.
My guess is that you are supposed to connect a low impedance 10 V (20V P-P) square wave generator across the inductor and look at the current drawn with a suitable probe. With a square wave input, the current waveform should be triangular.
From L*(di/dt) = 10 V, the rate of current change should be 10/L or 0.917 A/µs. At 200kHz, a half period is 5 µs. During such a half period, the current should change from -2.3 to +2.3 A. This sounds like a fairly hefty square wave generator to me.
My having said that, what can you add?
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