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Old 14th March 2003, 02:58 AM   #31
Solid Snake is offline Solid Snake  United States
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Wouldn't putting a resistor in series with the speaker produce a current feedback effect? Would this cause uneven output near a speaker's resonance?
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Old 14th March 2003, 03:10 AM   #32
Tube_Dude is offline Tube_Dude  Portugal
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Default Feedback of current...

Quote:
Wouldn't putting a resistor in series with the speaker produce a current feedback effect
If you put a resistor betwen the - of the loudspeaker and ground...say 1 Ohm and take the feedback from the union of this resistor and the minus of the loudspeaker...

Yes you have a current amplifier...aka a current source!
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Would this cause uneven output near a speaker's resonance?
Yes ...because there be no damping at all...

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Old 14th March 2003, 04:35 AM   #33
Solid Snake is offline Solid Snake  United States
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What if instead of a small value resistor between speaker - and ground, I feed back the speaker + through a high value resistor? That would be voltage feedback right?
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Old 14th March 2003, 01:29 PM   #34
Tube_Dude is offline Tube_Dude  Portugal
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Default Voltage or current...

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What if instead of a small value resistor between speaker - and ground, I feed back the speaker + through a high value resistor? That would be voltage feedback right?
Right!
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