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Old 17th November 2004, 04:39 PM   #1
anli is offline anli  Russian Federation
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Default Load (speaker) model?

Can anybody suggest a circuit to emulate an amplifier
8 Ohm speaker/load? I need it for simulating with SPICE.

Thanks!
Andrew
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Old 17th November 2004, 05:03 PM   #2
MikeB is offline MikeB  Germany
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http://www.diyaudio.com/forums/showt...261#post510261
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Old 17th November 2004, 05:20 PM   #3
anli is offline anli  Russian Federation
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Thanks!

From the comments above the referenced circuit I see
such circuit must be rather stress load for an amplifier.

I'll try :-)
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Old 18th November 2004, 03:17 AM   #4
anli is offline anli  Russian Federation
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To estimate "output power" - is it sufficient to use (Uoutput ** 2) / 5.3R ?
I'm mostly interested in 10-20KHz frequencies.
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Old 18th November 2004, 09:24 AM   #5
MikeB is offline MikeB  Germany
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Typically you calculate outputpower for 8ohm, and for sinus-power
you use this formula: Power = Voltswing^2 / (R*2)

Mike
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